+++ /dev/null
---- configure_orig.in 2009-03-01 13:50:30.000000000 +0800
-+++ configure.in 2009-02-27 13:35:42.000000000 +0800
-@@ -1123,8 +1123,14 @@
- if test -n "$file_system_testfs"; then
- AC_DEFINE(ROMIO_TESTFS,1,[Define for ROMIO with TESTFS])
- fi
-+#
-+# Verify presence of lustre/lustre_user.h
-+#
- if test -n "$file_system_lustre"; then
-- AC_DEFINE(ROMIO_LUSTRE,1,[Define for ROMIO with LUSTRE])
-+ AC_CHECK_HEADERS(lustre/lustre_user.h,
-+ AC_DEFINE(ROMIO_LUSTRE,1,[Define for ROMIO with LUSTRE]),
-+ AC_MSG_ERROR([LUSTRE support requested but cannot find lustre/lustre_user.h header file])
-+ )
- fi
-
- if test -n "$file_system_xfs"; then
---- adio/include/adioi_orig.h 2009-03-01 14:00:48.000000000 +0800
-+++ adio/include/adioi.h 2009-04-24 15:26:44.000000000 +0800
-@@ -52,6 +52,12 @@
- struct {
- int debugmask;
- } pvfs2;
-+ struct {
-+ int start_iodevice;
-+ int co_ratio;
-+ int coll_threshold;
-+ int ds_in_coll;
-+ } lustre;
- } fs_hints;
-
- };
-diff -ruN adio/ad_lustre_orig/ad_lustre_aggregate.c adio/ad_lustre/ad_lustre_aggregate.c
---- adio/ad_lustre_orig/ad_lustre_aggregate.c 1970-01-01 08:00:00.000000000 +0800
-+++ adio/ad_lustre/ad_lustre_aggregate.c 2009-05-05 15:22:40.000000000 +0800
-@@ -0,0 +1,304 @@
-+/* -*- Mode: C; c-basic-offset:4 ; -*- */
-+/*
-+ * Copyright (C) 1997 University of Chicago.
-+ * See COPYRIGHT notice in top-level directory.
-+ *
-+ * Copyright (C) 2007 Oak Ridge National Laboratory
-+ *
-+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
-+ */
-+
-+#include "ad_lustre.h"
-+#include "adio_extern.h"
-+
-+#undef AGG_DEBUG
-+
-+void ADIOI_LUSTRE_Get_striping_info(ADIO_File fd, int **striping_info_ptr,
-+ int mode)
-+{
-+ int *striping_info = NULL;
-+ /* get striping information:
-+ * striping_info[0]: stripe_size
-+ * striping_info[1]: stripe_count
-+ * striping_info[2]: avail_cb_nodes
-+ */
-+ int stripe_size, stripe_count, CO = 1, CO_max = 1, CO_nodes, lflag;
-+ int avail_cb_nodes, divisor, nprocs_for_coll = fd->hints->cb_nodes;
-+ char *value = (char *) ADIOI_Malloc((MPI_MAX_INFO_VAL + 1) * sizeof(char));
-+
-+ /* Get hints value */
-+ /* stripe size */
-+ stripe_size = fd->hints->striping_unit;
-+ /* stripe count */
-+ /* stripe_size and stripe_count have been validated in ADIOI_LUSTRE_Open() */
-+ stripe_count = fd->hints->striping_factor;
-+
-+ /* Calculate the available number of I/O clients, that is
-+ * avail_cb_nodes=min(cb_nodes, stripe_count*CO), where
-+ * CO=1 by default
-+ */
-+ if (!mode) {
-+ /* for collective read,
-+ * if "CO" clients access the same OST simultaneously,
-+ * the OST disk seek time would be much. So, to avoid this,
-+ * it might be better if 1 client only accesses 1 OST.
-+ * So, we set CO = 1 to meet the above requirement.
-+ */
-+ CO = 1;
-+ /*XXX: maybe there are other better way for collective read */
-+ } else {
-+ /* CO_max: the largest number of IO clients for each ost group */
-+ CO_max = (nprocs_for_coll - 1)/ stripe_count + 1;
-+ /* CO also has been validated in ADIOI_LUSTRE_Open(), >0 */
-+ CO = fd->hints->fs_hints.lustre.co_ratio;
-+ CO = ADIOI_MIN(CO_max, CO);
-+ }
-+ /* Calculate how many IO clients we need */
-+ /* To avoid extent lock conflicts,
-+ * avail_cb_nodes should divide (stripe_count*CO) exactly,
-+ * so that each OST is accessed by only one or more constant clients. */
-+ CO_nodes = stripe_count * CO;
-+ avail_cb_nodes = ADIOI_MIN(nprocs_for_coll, CO_nodes);
-+ if (avail_cb_nodes < CO_nodes) {
-+ do {
-+ /* find the divisor of CO_nodes */
-+ divisor = 1;
-+ do {
-+ divisor ++;
-+ } while (CO_nodes % divisor);
-+ CO_nodes = CO_nodes / divisor;
-+ /* if stripe_count*CO is a prime number, change nothing */
-+ if ((CO_nodes <= avail_cb_nodes) && (CO_nodes != 1)) {
-+ avail_cb_nodes = CO_nodes;
-+ break;
-+ }
-+ } while (CO_nodes != 1);
-+ }
-+
-+ *striping_info_ptr = (int *) ADIOI_Malloc(3 * sizeof(int));
-+ striping_info = *striping_info_ptr;
-+ striping_info[0] = stripe_size;
-+ striping_info[1] = stripe_count;
-+ striping_info[2] = avail_cb_nodes;
-+
-+ ADIOI_Free(value);
-+}
-+
-+int ADIOI_LUSTRE_Calc_aggregator(ADIO_File fd, ADIO_Offset off,
-+ ADIO_Offset *len, int *striping_info)
-+{
-+ int rank_index, rank;
-+ ADIO_Offset avail_bytes;
-+ int stripe_size = striping_info[0];
-+ int avail_cb_nodes = striping_info[2];
-+
-+ /* Produce the stripe-contiguous pattern for Lustre */
-+ rank_index = (int)((off / stripe_size) % avail_cb_nodes);
-+
-+ /* we index into fd_end with rank_index, and fd_end was allocated to be no
-+ * bigger than fd->hins->cb_nodes. If we ever violate that, we're
-+ * overrunning arrays. Obviously, we should never ever hit this abort
-+ */
-+ if (rank_index >= fd->hints->cb_nodes)
-+ MPI_Abort(MPI_COMM_WORLD, 1);
-+
-+ avail_bytes = (off / (ADIO_Offset)stripe_size + 1) *
-+ (ADIO_Offset)stripe_size - off;
-+ if (avail_bytes < *len) {
-+ /* this proc only has part of the requested contig. region */
-+ *len = avail_bytes;
-+ }
-+ /* map our index to a rank */
-+ /* NOTE: FOR NOW WE DON'T HAVE A MAPPING...JUST DO 0..NPROCS_FOR_COLL */
-+ rank = fd->hints->ranklist[rank_index];
-+
-+ return rank;
-+}
-+
-+/* ADIOI_LUSTRE_Calc_my_req() - calculate what portions of the access requests
-+ * of this process are located in the file domains of various processes
-+ * (including this one)
-+ */
-+void ADIOI_LUSTRE_Calc_my_req(ADIO_File fd, ADIO_Offset *offset_list,
-+ int *len_list, int contig_access_count,
-+ int *striping_info, int nprocs,
-+ int *count_my_req_procs_ptr,
-+ int **count_my_req_per_proc_ptr,
-+ ADIOI_Access **my_req_ptr,
-+ int **buf_idx_ptr)
-+{
-+ /* Nothing different from ADIOI_Calc_my_req(), except calling
-+ * ADIOI_Lustre_Calc_aggregator() instead of the old one */
-+ int *count_my_req_per_proc, count_my_req_procs, *buf_idx;
-+ int i, l, proc;
-+ ADIO_Offset avail_len, rem_len, curr_idx, off;
-+ ADIOI_Access *my_req;
-+
-+ *count_my_req_per_proc_ptr = (int *) ADIOI_Calloc(nprocs, sizeof(int));
-+ count_my_req_per_proc = *count_my_req_per_proc_ptr;
-+ /* count_my_req_per_proc[i] gives the no. of contig. requests of this
-+ * process in process i's file domain. calloc initializes to zero.
-+ * I'm allocating memory of size nprocs, so that I can do an
-+ * MPI_Alltoall later on.
-+ */
-+
-+ buf_idx = (int *) ADIOI_Malloc(nprocs * sizeof(int));
-+ /* buf_idx is relevant only if buftype_is_contig.
-+ * buf_idx[i] gives the index into user_buf where data received
-+ * from proc. i should be placed. This allows receives to be done
-+ * without extra buffer. This can't be done if buftype is not contig.
-+ */
-+
-+ /* initialize buf_idx to -1 */
-+ for (i = 0; i < nprocs; i++)
-+ buf_idx[i] = -1;
-+
-+ /* one pass just to calculate how much space to allocate for my_req;
-+ * contig_access_count was calculated way back in ADIOI_Calc_my_off_len()
-+ */
-+ for (i = 0; i < contig_access_count; i++) {
-+ /* short circuit offset/len processing if len == 0
-+ * (zero-byte read/write
-+ */
-+ if (len_list[i] == 0)
-+ continue;
-+ off = offset_list[i];
-+ avail_len = len_list[i];
-+ /* note: we set avail_len to be the total size of the access.
-+ * then ADIOI_LUSTRE_Calc_aggregator() will modify the value to return
-+ * the amount that was available.
-+ */
-+ proc = ADIOI_LUSTRE_Calc_aggregator(fd, off, &avail_len, striping_info);
-+ count_my_req_per_proc[proc]++;
-+
-+ /* figure out how many data is remaining in the access
-+ * we'll take care of this data (if there is any)
-+ * in the while loop below.
-+ */
-+ rem_len = len_list[i] - avail_len;
-+
-+ while (rem_len != 0) {
-+ off += avail_len; /* point to first remaining byte */
-+ avail_len = rem_len; /* save remaining size, pass to calc */
-+ proc = ADIOI_LUSTRE_Calc_aggregator(fd, off, &avail_len, striping_info);
-+ count_my_req_per_proc[proc]++;
-+ rem_len -= avail_len; /* reduce remaining length by amount from fd */
-+ }
-+ }
-+
-+ /* now allocate space for my_req, offset, and len */
-+ *my_req_ptr = (ADIOI_Access *) ADIOI_Malloc(nprocs * sizeof(ADIOI_Access));
-+ my_req = *my_req_ptr;
-+
-+ count_my_req_procs = 0;
-+ for (i = 0; i < nprocs; i++) {
-+ if (count_my_req_per_proc[i]) {
-+ my_req[i].offsets = (ADIO_Offset *)
-+ ADIOI_Malloc(count_my_req_per_proc[i] *
-+ sizeof(ADIO_Offset));
-+ my_req[i].lens = (int *) ADIOI_Malloc(count_my_req_per_proc[i] *
-+ sizeof(int));
-+ count_my_req_procs++;
-+ }
-+ my_req[i].count = 0; /* will be incremented where needed later */
-+ }
-+
-+ /* now fill in my_req */
-+ curr_idx = 0;
-+ for (i = 0; i < contig_access_count; i++) {
-+ /* short circuit offset/len processing if len == 0
-+ * (zero-byte read/write */
-+ if (len_list[i] == 0)
-+ continue;
-+ off = offset_list[i];
-+ avail_len = len_list[i];
-+ proc = ADIOI_LUSTRE_Calc_aggregator(fd, off, &avail_len, striping_info);
-+
-+ /* for each separate contiguous access from this process */
-+ if (buf_idx[proc] == -1)
-+ buf_idx[proc] = (int) curr_idx;
-+
-+ l = my_req[proc].count;
-+ curr_idx += (int) avail_len; /* NOTE: Why is curr_idx an int? Fix? */
-+
-+ rem_len = len_list[i] - avail_len;
-+
-+ /* store the proc, offset, and len information in an array
-+ * of structures, my_req. Each structure contains the
-+ * offsets and lengths located in that process's FD,
-+ * and the associated count.
-+ */
-+ my_req[proc].offsets[l] = off;
-+ my_req[proc].lens[l] = (int) avail_len;
-+ my_req[proc].count++;
-+
-+ while (rem_len != 0) {
-+ off += avail_len;
-+ avail_len = rem_len;
-+ proc = ADIOI_LUSTRE_Calc_aggregator(fd, off, &avail_len,
-+ striping_info);
-+ if (buf_idx[proc] == -1)
-+ buf_idx[proc] = (int) curr_idx;
-+
-+ l = my_req[proc].count;
-+ curr_idx += avail_len;
-+ rem_len -= avail_len;
-+
-+ my_req[proc].offsets[l] = off;
-+ my_req[proc].lens[l] = (int) avail_len;
-+ my_req[proc].count++;
-+ }
-+ }
-+
-+#ifdef AGG_DEBUG
-+ for (i = 0; i < nprocs; i++) {
-+ if (count_my_req_per_proc[i] > 0) {
-+ FPRINTF(stdout, "data needed from %d (count = %d):\n",
-+ i, my_req[i].count);
-+ for (l = 0; l < my_req[i].count; l++) {
-+ FPRINTF(stdout, " off[%d] = %lld, len[%d] = %d\n",
-+ l, my_req[i].offsets[l], l, my_req[i].lens[l]);
-+ }
-+ }
-+ }
-+#if 0
-+ for (i = 0; i < nprocs; i++) {
-+ FPRINTF(stdout, "buf_idx[%d] = 0x%x\n", i, buf_idx[i]);
-+ }
-+#endif
-+#endif
-+
-+ *count_my_req_procs_ptr = count_my_req_procs;
-+ *buf_idx_ptr = buf_idx;
-+}
-+
-+int ADIOI_LUSTRE_Docollect(ADIO_File fd, int contig_access_count,
-+ int *len_list, int nprocs)
-+{
-+ /* If the processes are non-interleaved, we will check the req_size.
-+ * if (avg_req_size > big_req_size) {
-+ * docollect = 0;
-+ * }
-+ */
-+
-+ int i, docollect = 1, lflag, big_req_size = 0;
-+ ADIO_Offset req_size = 0, total_req_size;
-+ int avg_req_size, total_access_count;
-+
-+ /* calculate total_req_size and total_access_count */
-+ for (i = 0; i < contig_access_count; i++)
-+ req_size += len_list[i];
-+ MPI_Allreduce(&req_size, &total_req_size, 1, MPI_LONG_LONG_INT, MPI_SUM,
-+ fd->comm);
-+ MPI_Allreduce(&contig_access_count, &total_access_count, 1, MPI_INT, MPI_SUM,
-+ fd->comm);
-+ /* estimate average req_size */
-+ avg_req_size = (int)(total_req_size / total_access_count);
-+ /* get hint of big_req_size */
-+ big_req_size = fd->hints->fs_hints.lustre.coll_threshold;
-+ /* Don't perform collective I/O if there are big requests */
-+ if ((big_req_size > 0) && (avg_req_size > big_req_size))
-+ docollect = 0;
-+
-+ return docollect;
-+}
-diff -ruN adio/ad_lustre_orig/ad_lustre.c adio/ad_lustre/ad_lustre.c
---- adio/ad_lustre_orig/ad_lustre.c 2008-09-17 14:36:56.000000000 +0800
-+++ adio/ad_lustre/ad_lustre.c 2008-10-17 17:03:42.000000000 +0800
-@@ -1,9 +1,11 @@
- /* -*- Mode: C; c-basic-offset:4 ; -*- */
--/*
-- * Copyright (C) 2001 University of Chicago.
-+/*
-+ * Copyright (C) 2001 University of Chicago.
- * See COPYRIGHT notice in top-level directory.
- *
- * Copyright (C) 2007 Oak Ridge National Laboratory
-+ *
-+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- */
-
- #include "ad_lustre.h"
-@@ -13,12 +15,12 @@
- ADIOI_LUSTRE_ReadContig, /* ReadContig */
- ADIOI_LUSTRE_WriteContig, /* WriteContig */
- ADIOI_GEN_ReadStridedColl, /* ReadStridedColl */
-- ADIOI_GEN_WriteStridedColl, /* WriteStridedColl */
-+ ADIOI_LUSTRE_WriteStridedColl, /* WriteStridedColl */
- ADIOI_GEN_SeekIndividual, /* SeekIndividual */
- ADIOI_GEN_Fcntl, /* Fcntl */
- ADIOI_LUSTRE_SetInfo, /* SetInfo */
- ADIOI_GEN_ReadStrided, /* ReadStrided */
-- ADIOI_GEN_WriteStrided, /* WriteStrided */
-+ ADIOI_LUSTRE_WriteStrided, /* WriteStrided */
- ADIOI_GEN_Close, /* Close */
- #if defined(ROMIO_HAVE_WORKING_AIO) && !defined(CRAY_XT_LUSTRE)
- ADIOI_GEN_IreadContig, /* IreadContig */
-diff -ruN adio/ad_lustre_orig/ad_lustre.h adio/ad_lustre/ad_lustre.h
---- adio/ad_lustre_orig/ad_lustre.h 2008-09-17 14:36:56.000000000 +0800
-+++ adio/ad_lustre/ad_lustre.h 2009-05-05 15:34:58.000000000 +0800
-@@ -1,9 +1,11 @@
- /* -*- Mode: C; c-basic-offset:4 ; -*- */
--/*
-- * Copyright (C) 1997 University of Chicago.
-+/*
-+ * Copyright (C) 1997 University of Chicago.
- * See COPYRIGHT notice in top-level directory.
- *
- * Copyright (C) 2007 Oak Ridge National Laboratory
-+ *
-+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- */
-
- #ifndef AD_UNIX_INCLUDE
-@@ -24,7 +26,7 @@
-
- /*#include <fcntl.h>*/
- #include <sys/ioctl.h>
--#include "lustre/lustre_user.h"
-+#include <lustre/lustre_user.h>
- #include "adio.h"
- /*#include "adioi.h"*/
-
-@@ -41,24 +43,31 @@
-
- void ADIOI_LUSTRE_Open(ADIO_File fd, int *error_code);
- void ADIOI_LUSTRE_Close(ADIO_File fd, int *error_code);
--void ADIOI_LUSTRE_ReadContig(ADIO_File fd, void *buf, int count,
-- MPI_Datatype datatype, int file_ptr_type,
-- ADIO_Offset offset, ADIO_Status *status, int
-- *error_code);
--void ADIOI_LUSTRE_WriteContig(ADIO_File fd, void *buf, int count,
-- MPI_Datatype datatype, int file_ptr_type,
-- ADIO_Offset offset, ADIO_Status *status, int
-- *error_code);
-+void ADIOI_LUSTRE_ReadContig(ADIO_File fd, void *buf, int count,
-+ MPI_Datatype datatype, int file_ptr_type,
-+ ADIO_Offset offset, ADIO_Status *status,
-+ int *error_code);
-+void ADIOI_LUSTRE_WriteContig(ADIO_File fd, void *buf, int count,
-+ MPI_Datatype datatype, int file_ptr_type,
-+ ADIO_Offset offset, ADIO_Status *status,
-+ int *error_code);
-+void ADIOI_LUSTRE_WriteStrided(ADIO_File fd, void *buf, int count,
-+ MPI_Datatype datatype, int file_ptr_type,
-+ ADIO_Offset offset, ADIO_Status *status,
-+ int *error_code);
- void ADIOI_LUSTRE_WriteStridedColl(ADIO_File fd, void *buf, int count,
-- MPI_Datatype datatype, int file_ptr_type,
-- ADIO_Offset offset, ADIO_Status *status, int
-- *error_code);
-+ MPI_Datatype datatype, int file_ptr_type,
-+ ADIO_Offset offset, ADIO_Status *status,
-+ int *error_code);
- void ADIOI_LUSTRE_ReadStridedColl(ADIO_File fd, void *buf, int count,
-- MPI_Datatype datatype, int file_ptr_type,
-- ADIO_Offset offset, ADIO_Status *status, int
-- *error_code);
-+ MPI_Datatype datatype, int file_ptr_type,
-+ ADIO_Offset offset, ADIO_Status *status,
-+ int *error_code);
-+void ADIOI_LUSTRE_ReadStrided(ADIO_File fd, void *buf, int count,
-+ MPI_Datatype datatype, int file_ptr_type,
-+ ADIO_Offset offset, ADIO_Status *status,
-+ int *error_code);
- void ADIOI_LUSTRE_Fcntl(ADIO_File fd, int flag, ADIO_Fcntl_t *fcntl_struct,
- int *error_code);
- void ADIOI_LUSTRE_SetInfo(ADIO_File fd, MPI_Info users_info, int *error_code);
--
- #endif /* End of AD_UNIX_INCLUDE */
-diff -ruN adio/ad_lustre_orig/ad_lustre_hints.c adio/ad_lustre/ad_lustre_hints.c
---- adio/ad_lustre_orig/ad_lustre_hints.c 2008-09-17 14:36:56.000000000 +0800
-+++ adio/ad_lustre/ad_lustre_hints.c 2009-04-24 15:35:05.000000000 +0800
-@@ -1,9 +1,11 @@
- /* -*- Mode: C; c-basic-offset:4 ; -*- */
--/*
-- * Copyright (C) 1997 University of Chicago.
-+/*
-+ * Copyright (C) 1997 University of Chicago.
- * See COPYRIGHT notice in top-level directory.
- *
- * Copyright (C) 2007 Oak Ridge National Laboratory
-+ *
-+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- */
-
- #include "ad_lustre.h"
-@@ -12,46 +14,56 @@
- void ADIOI_LUSTRE_SetInfo(ADIO_File fd, MPI_Info users_info, int *error_code)
- {
- char *value, *value_in_fd;
-- int flag, tmp_val[3], str_factor=-1, str_unit=0, start_iodev=-1;
-+ int flag, stripe_val[3], str_factor = -1, str_unit=0, start_iodev=-1;
- struct lov_user_md lum = { 0 };
- int err, myrank, fd_sys, perm, amode, old_mask;
-+ int int_val, tmp_val;
-+ static char myname[] = "ADIOI_LUSTRE_SETINFO";
-
- value = (char *) ADIOI_Malloc((MPI_MAX_INFO_VAL+1)*sizeof(char));
- if ( (fd->info) == MPI_INFO_NULL) {
-- /* This must be part of the open call. can set striping parameters
-- if necessary. */
-+ /* This must be part of the open call. can set striping parameters
-+ if necessary. */
- MPI_Info_create(&(fd->info));
-
- MPI_Info_set(fd->info, "direct_read", "false");
- MPI_Info_set(fd->info, "direct_write", "false");
- fd->direct_read = fd->direct_write = 0;
--
-- /* has user specified striping or server buffering parameters
-+ /* initialize lustre hints */
-+ MPI_Info_set(fd->info, "romio_lustre_co_ratio", "1");
-+ fd->hints->fs_hints.lustre.co_ratio = 1;
-+ MPI_Info_set(fd->info, "romio_lustre_coll_threshold", "0");
-+ fd->hints->fs_hints.lustre.coll_threshold = 0;
-+ MPI_Info_set(fd->info, "romio_lustre_ds_in_coll", "enable");
-+ fd->hints->fs_hints.lustre.ds_in_coll = ADIOI_HINT_ENABLE;
-+
-+ /* has user specified striping or server buffering parameters
- and do they have the same value on all processes? */
- if (users_info != MPI_INFO_NULL) {
-- MPI_Info_get(users_info, "striping_unit", MPI_MAX_INFO_VAL,
-+ /* striping information */
-+ MPI_Info_get(users_info, "striping_unit", MPI_MAX_INFO_VAL,
- value, &flag);
-- if (flag)
-+ if (flag)
- str_unit=atoi(value);
-
-- MPI_Info_get(users_info, "striping_factor", MPI_MAX_INFO_VAL,
-+ MPI_Info_get(users_info, "striping_factor", MPI_MAX_INFO_VAL,
- value, &flag);
-- if (flag)
-+ if (flag)
- str_factor=atoi(value);
-
-- MPI_Info_get(users_info, "start_iodevice", MPI_MAX_INFO_VAL,
-- value, &flag);
-- if (flag)
-+ MPI_Info_get(users_info, "romio_lustre_start_iodevice",
-+ MPI_MAX_INFO_VAL, value, &flag);
-+ if (flag)
- start_iodev=atoi(value);
-
-- MPI_Info_get(users_info, "direct_read", MPI_MAX_INFO_VAL,
-- value, &flag);
-+ /* direct read and write */
-+ MPI_Info_get(users_info, "direct_read", MPI_MAX_INFO_VAL,
-+ value, &flag);
- if (flag && (!strcmp(value, "true") || !strcmp(value, "TRUE"))) {
- MPI_Info_set(fd->info, "direct_read", "true");
- fd->direct_read = 1;
- }
--
-- MPI_Info_get(users_info, "direct_write", MPI_MAX_INFO_VAL,
-+ MPI_Info_get(users_info, "direct_write", MPI_MAX_INFO_VAL,
- value, &flag);
- if (flag && (!strcmp(value, "true") || !strcmp(value, "TRUE"))) {
- MPI_Info_set(fd->info, "direct_write", "true");
-@@ -59,22 +71,23 @@
- }
- }
-
-+ /* set striping information with ioctl */
- MPI_Comm_rank(fd->comm, &myrank);
- if (myrank == 0) {
-- tmp_val[0] = str_factor;
-- tmp_val[1] = str_unit;
-- tmp_val[2] = start_iodev;
-+ stripe_val[0] = str_factor;
-+ stripe_val[1] = str_unit;
-+ stripe_val[2] = start_iodev;
- }
-- MPI_Bcast(tmp_val, 3, MPI_INT, 0, fd->comm);
-+ MPI_Bcast(stripe_val, 3, MPI_INT, 0, fd->comm);
-
-- if (tmp_val[0] != str_factor
-- || tmp_val[1] != str_unit
-- || tmp_val[2] != start_iodev) {
-+ if (stripe_val[0] != str_factor
-+ || stripe_val[1] != str_unit
-+ || stripe_val[2] != start_iodev) {
- FPRINTF(stderr, "ADIOI_LUSTRE_SetInfo: All keys"
- "-striping_factor:striping_unit:start_iodevice "
- "need to be identical across all processes\n");
- MPI_Abort(MPI_COMM_WORLD, 1);
-- } else if ((str_factor > 0) || (str_unit > 0) || (start_iodev >= 0)) {
-+ } else if ((str_factor > 0) || (str_unit > 0) || (start_iodev >= 0)) {
- /* if user has specified striping info, process 0 tries to set it */
- if (!myrank) {
- if (fd->perm == ADIO_PERM_NULL) {
-@@ -100,9 +113,9 @@
- amode = amode | O_LOV_DELAY_CREATE | O_CREAT;
-
- fd_sys = open(fd->filename, amode, perm);
-- if (fd_sys == -1) {
-- if (errno != EEXIST)
-- fprintf(stderr,
-+ if (fd_sys == -1) {
-+ if (errno != EEXIST)
-+ fprintf(stderr,
- "Failure to open file %s %d %d\n",strerror(errno), amode, perm);
- } else {
- lum.lmm_magic = LOV_USER_MAGIC;
-@@ -112,25 +125,73 @@
- lum.lmm_stripe_offset = start_iodev;
-
- err = ioctl(fd_sys, LL_IOC_LOV_SETSTRIPE, &lum);
-- if (err == -1 && errno != EEXIST) {
-+ if (err == -1 && errno != EEXIST) {
- fprintf(stderr, "Failure to set stripe info %s \n", strerror(errno));
- }
- close(fd_sys);
- }
- } /* End of striping parameters validation */
- }
--
- MPI_Barrier(fd->comm);
-- /* set the values for collective I/O and data sieving parameters */
-- ADIOI_GEN_SetInfo(fd, users_info, error_code);
-- } else {
-- /* The file has been opened previously and fd->fd_sys is a valid
-- file descriptor. cannot set striping parameters now. */
--
-- /* set the values for collective I/O and data sieving parameters */
-- ADIOI_GEN_SetInfo(fd, users_info, error_code);
- }
--
-+ /* get other hint */
-+ if (users_info != MPI_INFO_NULL) {
-+ /* CO: IO Clients/OST,
-+ * to keep the load balancing between clients and OSTs */
-+ MPI_Info_get(users_info, "romio_lustre_co_ratio", MPI_MAX_INFO_VAL, value,
-+ &flag);
-+ if (flag && (int_val = atoi(value)) > 0) {
-+ tmp_val = int_val;
-+ MPI_Bcast(&tmp_val, 1, MPI_INT, 0, fd->comm);
-+ if (tmp_val != int_val) {
-+ MPIO_ERR_CREATE_CODE_INFO_NOT_SAME(myname,
-+ "romio_lustre_co_ratio",
-+ error_code);
-+ ADIOI_Free(value);
-+ return;
-+ }
-+ MPI_Info_set(fd->info, "romio_lustre_co_ratio", value);
-+ fd->hints->fs_hints.lustre.co_ratio = atoi(value);
-+ }
-+ /* coll_threshold:
-+ * if the req size is bigger than this, collective IO may not be performed.
-+ */
-+ MPI_Info_get(users_info, "romio_lustre_coll_threshold", MPI_MAX_INFO_VAL, value,
-+ &flag);
-+ if (flag && (int_val = atoi(value)) > 0) {
-+ tmp_val = int_val;
-+ MPI_Bcast(&tmp_val, 1, MPI_INT, 0, fd->comm);
-+ if (tmp_val != int_val) {
-+ MPIO_ERR_CREATE_CODE_INFO_NOT_SAME(myname,
-+ "romio_lustre_coll_threshold",
-+ error_code);
-+ ADIOI_Free(value);
-+ return;
-+ }
-+ MPI_Info_set(fd->info, "romio_lustre_coll_threshold", value);
-+ fd->hints->fs_hints.lustre.coll_threshold = atoi(value);
-+ }
-+ /* ds_in_coll: disable data sieving in collective IO */
-+ MPI_Info_get(users_info, "romio_lustre_ds_in_coll", MPI_MAX_INFO_VAL,
-+ value, &flag);
-+ if (flag && (!strcmp(value, "disable") ||
-+ !strcmp(value, "DISABLE"))) {
-+ tmp_val = int_val = 2;
-+ MPI_Bcast(&tmp_val, 2, MPI_INT, 0, fd->comm);
-+ if (tmp_val != int_val) {
-+ MPIO_ERR_CREATE_CODE_INFO_NOT_SAME(myname,
-+ "romio_lustre_ds_in_coll",
-+ error_code);
-+ ADIOI_Free(value);
-+ return;
-+ }
-+ MPI_Info_set(fd->info, "romio_lustre_ds_in_coll", "disable");
-+ fd->hints->fs_hints.lustre.ds_in_coll = ADIOI_HINT_DISABLE;
-+ }
-+ }
-+ /* set the values for collective I/O and data sieving parameters */
-+ ADIOI_GEN_SetInfo(fd, users_info, error_code);
-+
- if (ADIOI_Direct_read) fd->direct_read = 1;
- if (ADIOI_Direct_write) fd->direct_write = 1;
-
-diff -ruN adio/ad_lustre_orig/ad_lustre_open.c adio/ad_lustre/ad_lustre_open.c
---- adio/ad_lustre_orig/ad_lustre_open.c 2008-09-17 14:36:56.000000000 +0800
-+++ adio/ad_lustre/ad_lustre_open.c 2009-03-01 11:32:32.000000000 +0800
-@@ -1,9 +1,11 @@
- /* -*- Mode: C; c-basic-offset:4 ; -*- */
--/*
-- * Copyright (C) 1997 University of Chicago.
-+/*
-+ * Copyright (C) 1997 University of Chicago.
- * See COPYRIGHT notice in top-level directory.
- *
- * Copyright (C) 2007 Oak Ridge National Laboratory
-+ *
-+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- */
-
- #include "ad_lustre.h"
-@@ -51,14 +53,17 @@
- err = ioctl(fd->fd_sys, LL_IOC_LOV_GETSTRIPE, (void *) &lum);
-
- if (!err) {
-+ fd->hints->striping_unit = lum.lmm_stripe_size;
- sprintf(value, "%d", lum.lmm_stripe_size);
- MPI_Info_set(fd->info, "striping_unit", value);
-
-+ fd->hints->striping_factor = lum.lmm_stripe_count;
- sprintf(value, "%d", lum.lmm_stripe_count);
- MPI_Info_set(fd->info, "striping_factor", value);
-
-+ fd->hints->fs_hints.lustre.start_iodevice = lum.lmm_stripe_offset;
- sprintf(value, "%d", lum.lmm_stripe_offset);
-- MPI_Info_set(fd->info, "start_iodevice", value);
-+ MPI_Info_set(fd->info, "romio_lustre_start_iodevice", value);
- }
- ADIOI_Free(value);
-
-diff -ruN adio/ad_lustre_orig/ad_lustre_rwcontig.c adio/ad_lustre/ad_lustre_rwcontig.c
---- adio/ad_lustre_orig/ad_lustre_rwcontig.c 2008-09-17 14:36:56.000000000 +0800
-+++ adio/ad_lustre/ad_lustre_rwcontig.c 2009-05-05 15:34:29.000000000 +0800
-@@ -1,9 +1,11 @@
- /* -*- Mode: C; c-basic-offset:4 ; -*- */
--/*
-- * Copyright (C) 1997 University of Chicago.
-+/*
-+ * Copyright (C) 1997 University of Chicago.
- * See COPYRIGHT notice in top-level directory.
- *
- * Copyright (C) 2007 Oak Ridge National Laboratory
-+ *
-+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
- */
-
- #define _XOPEN_SOURCE 600
-@@ -136,10 +138,23 @@
- if (err == -1) goto ioerr;
- }
-
-- if (io_mode)
-+ if (io_mode) {
-+#ifdef ADIOI_MPE_LOGGING
-+ MPE_Log_event(ADIOI_MPE_write_a, 0, NULL);
-+#endif
- err = write(fd->fd_sys, buf, len);
-- else
-+#ifdef ADIOI_MPE_LOGGING
-+ MPE_Log_event(ADIOI_MPE_write_b, 0, NULL);
-+#endif
-+ } else {
-+#ifdef ADIOI_MPE_LOGGING
-+ MPE_Log_event(ADIOI_MPE_read_a, 0, NULL);
-+#endif
- err = read(fd->fd_sys, buf, len);
-+#ifdef ADIOI_MPE_LOGGING
-+ MPE_Log_event(ADIOI_MPE_read_b, 0, NULL);
-+#endif
-+ }
- } else {
- err = ADIOI_LUSTRE_Directio(fd, buf, len, offset, io_mode);
- }
-diff -ruN adio/ad_lustre_orig/ad_lustre_wrcoll.c adio/ad_lustre/ad_lustre_wrcoll.c
---- adio/ad_lustre_orig/ad_lustre_wrcoll.c 1970-01-01 08:00:00.000000000 +0800
-+++ adio/ad_lustre/ad_lustre_wrcoll.c 2009-04-24 14:48:34.000000000 +0800
-@@ -0,0 +1,934 @@
-+/* -*- Mode: C; c-basic-offset:4 ; -*- */
-+/*
-+ * Copyright (C) 1997 University of Chicago.
-+ * See COPYRIGHT notice in top-level directory.
-+ *
-+ * Copyright (C) 2007 Oak Ridge National Laboratory
-+ *
-+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
-+ */
-+
-+#include "ad_lustre.h"
-+#include "adio_extern.h"
-+
-+/* prototypes of functions used for collective writes only. */
-+static void ADIOI_LUSTRE_Exch_and_write(ADIO_File fd, void *buf,
-+ MPI_Datatype datatype, int nprocs,
-+ int myrank,
-+ ADIOI_Access *others_req,
-+ ADIOI_Access *my_req,
-+ ADIO_Offset *offset_list,
-+ int *len_list,
-+ int contig_access_count,
-+ int *striping_info,
-+ int *buf_idx, int *error_code);
-+static void ADIOI_LUSTRE_Fill_send_buffer(ADIO_File fd, void *buf,
-+ ADIOI_Flatlist_node *flat_buf,
-+ char **send_buf,
-+ ADIO_Offset *offset_list,
-+ int *len_list, int *send_size,
-+ MPI_Request *requests,
-+ int *sent_to_proc, int nprocs,
-+ int myrank, int contig_access_count,
-+ int *striping_info,
-+ int *send_buf_idx,
-+ int *curr_to_proc,
-+ int *done_to_proc, int iter,
-+ MPI_Aint buftype_extent);
-+static void ADIOI_LUSTRE_W_Exchange_data(ADIO_File fd, void *buf,
-+ char *write_buf,
-+ ADIOI_Flatlist_node *flat_buf,
-+ ADIO_Offset *offset_list,
-+ int *len_list, int *send_size,
-+ int *recv_size, ADIO_Offset off,
-+ int size, int *count,
-+ int *start_pos, int *partial_recv,
-+ int *sent_to_proc, int nprocs,
-+ int myrank, int buftype_is_contig,
-+ int contig_access_count,
-+ int *striping_info,
-+ ADIOI_Access *others_req,
-+ int *send_buf_idx,
-+ int *curr_to_proc,
-+ int *done_to_proc, int *hole,
-+ int iter, MPI_Aint buftype_extent,
-+ int *buf_idx, int *error_code);
-+void ADIOI_Heap_merge(ADIOI_Access *others_req, int *count,
-+ ADIO_Offset *srt_off, int *srt_len, int *start_pos,
-+ int nprocs, int nprocs_recv, int total_elements);
-+
-+void ADIOI_LUSTRE_WriteStridedColl(ADIO_File fd, void *buf, int count,
-+ MPI_Datatype datatype,
-+ int file_ptr_type, ADIO_Offset offset,
-+ ADIO_Status *status, int *error_code)
-+{
-+ /* Uses a generalized version of the extended two-phase method described
-+ * in "An Extended Two-Phase Method for Accessing Sections of
-+ * Out-of-Core Arrays", Rajeev Thakur and Alok Choudhary,
-+ * Scientific Programming, (5)4:301--317, Winter 1996.
-+ * http://www.mcs.anl.gov/home/thakur/ext2ph.ps
-+ */
-+
-+ ADIOI_Access *my_req;
-+ /* array of nprocs access structures, one for each other process has
-+ this process's request */
-+
-+ ADIOI_Access *others_req;
-+ /* array of nprocs access structures, one for each other process
-+ whose request is written by this process. */
-+
-+ int i, filetype_is_contig, nprocs, myrank, do_collect = 0;
-+ int contig_access_count = 0, buftype_is_contig, interleave_count = 0;
-+ int *count_my_req_per_proc, count_my_req_procs, count_others_req_procs;
-+ ADIO_Offset orig_fp, start_offset, end_offset, off;
-+ ADIO_Offset *offset_list = NULL, *st_offsets = NULL, *end_offsets = NULL;
-+ int *buf_idx = NULL, *len_list = NULL, *striping_info = NULL;
-+ int old_error, tmp_error;
-+
-+ MPI_Comm_size(fd->comm, &nprocs);
-+ MPI_Comm_rank(fd->comm, &myrank);
-+
-+ orig_fp = fd->fp_ind;
-+
-+ /* IO patten identification if cb_write isn't disabled */
-+ if (fd->hints->cb_write != ADIOI_HINT_DISABLE) {
-+ /* For this process's request, calculate the list of offsets and
-+ lengths in the file and determine the start and end offsets. */
-+
-+ /* Note: end_offset points to the last byte-offset that will be accessed.
-+ * e.g., if start_offset=0 and 100 bytes to be read, end_offset=99
-+ */
-+
-+ ADIOI_Calc_my_off_len(fd, count, datatype, file_ptr_type, offset,
-+ &offset_list, &len_list, &start_offset,
-+ &end_offset, &contig_access_count);
-+
-+ /* each process communicates its start and end offsets to other
-+ * processes. The result is an array each of start and end offsets
-+ * stored in order of process rank.
-+ */
-+ st_offsets = (ADIO_Offset *) ADIOI_Malloc(nprocs * sizeof(ADIO_Offset));
-+ end_offsets = (ADIO_Offset *) ADIOI_Malloc(nprocs * sizeof(ADIO_Offset));
-+ MPI_Allgather(&start_offset, 1, ADIO_OFFSET, st_offsets, 1,
-+ ADIO_OFFSET, fd->comm);
-+ MPI_Allgather(&end_offset, 1, ADIO_OFFSET, end_offsets, 1,
-+ ADIO_OFFSET, fd->comm);
-+ /* are the accesses of different processes interleaved? */
-+ for (i = 1; i < nprocs; i++)
-+ if ((st_offsets[i] < end_offsets[i-1]) &&
-+ (st_offsets[i] <= end_offsets[i]))
-+ interleave_count++;
-+ /* This is a rudimentary check for interleaving, but should suffice
-+ for the moment. */
-+
-+ /* Two typical access patterns can benefit from collective write.
-+ * 1) the processes are interleaved, and
-+ * 2) the req size is small.
-+ */
-+ if (interleave_count > 0) {
-+ do_collect = 1;
-+ } else {
-+ do_collect = ADIOI_LUSTRE_Docollect(fd, contig_access_count,
-+ len_list, nprocs);
-+ }
-+ }
-+ ADIOI_Datatype_iscontig(datatype, &buftype_is_contig);
-+
-+ /* Decide if collective I/O should be done */
-+ if ((!do_collect && fd->hints->cb_write == ADIOI_HINT_AUTO) ||
-+ fd->hints->cb_write == ADIOI_HINT_DISABLE) {
-+
-+ int filerange_is_contig = 0;
-+
-+ /* use independent accesses */
-+ if (fd->hints->cb_write != ADIOI_HINT_DISABLE) {
-+ ADIOI_Free(offset_list);
-+ ADIOI_Free(len_list);
-+ ADIOI_Free(st_offsets);
-+ ADIOI_Free(end_offsets);
-+ }
-+
-+ fd->fp_ind = orig_fp;
-+ ADIOI_Datatype_iscontig(fd->filetype, &filetype_is_contig);
-+ if (buftype_is_contig && filetype_is_contig) {
-+ if (file_ptr_type == ADIO_EXPLICIT_OFFSET) {
-+ off = fd->disp + (fd->etype_size) * offset;
-+ ADIO_WriteContig(fd, buf, count, datatype,
-+ ADIO_EXPLICIT_OFFSET,
-+ off, status, error_code);
-+ } else
-+ ADIO_WriteContig(fd, buf, count, datatype, ADIO_INDIVIDUAL,
-+ 0, status, error_code);
-+ } else {
-+ ADIO_WriteStrided(fd, buf, count, datatype, file_ptr_type,
-+ offset, status, error_code);
-+ }
-+ return;
-+ }
-+
-+ /* Get Lustre hints information */
-+ ADIOI_LUSTRE_Get_striping_info(fd, &striping_info, 1);
-+
-+ /* calculate what portions of the access requests of this process are
-+ * located in which process
-+ */
-+ ADIOI_LUSTRE_Calc_my_req(fd, offset_list, len_list, contig_access_count,
-+ striping_info, nprocs, &count_my_req_procs,
-+ &count_my_req_per_proc, &my_req, &buf_idx);
-+
-+ /* based on everyone's my_req, calculate what requests of other processes
-+ * will be accessed by this process.
-+ * count_others_req_procs = number of processes whose requests (including
-+ * this process itself) will be accessed by this process
-+ * count_others_req_per_proc[i] indicates how many separate contiguous
-+ * requests of proc. i will be accessed by this process.
-+ */
-+
-+ ADIOI_Calc_others_req(fd, count_my_req_procs, count_my_req_per_proc,
-+ my_req, nprocs, myrank, &count_others_req_procs,
-+ &others_req);
-+ ADIOI_Free(count_my_req_per_proc);
-+
-+ /* exchange data and write in sizes of no more than stripe_size. */
-+ ADIOI_LUSTRE_Exch_and_write(fd, buf, datatype, nprocs, myrank,
-+ others_req, my_req,
-+ offset_list, len_list, contig_access_count,
-+ striping_info, buf_idx, error_code);
-+
-+ /* If this collective write is followed by an independent write,
-+ * it's possible to have those subsequent writes on other processes
-+ * race ahead and sneak in before the read-modify-write completes.
-+ * We carry out a collective communication at the end here so no one
-+ * can start independent i/o before collective I/O completes.
-+ *
-+ * need to do some gymnastics with the error codes so that if something
-+ * went wrong, all processes report error, but if a process has a more
-+ * specific error code, we can still have that process report the
-+ * additional information */
-+
-+ old_error = *error_code;
-+ if (*error_code != MPI_SUCCESS)
-+ *error_code = MPI_ERR_IO;
-+
-+ /* optimization: if only one process performing i/o, we can perform
-+ * a less-expensive Bcast */
-+#ifdef ADIOI_MPE_LOGGING
-+ MPE_Log_event(ADIOI_MPE_postwrite_a, 0, NULL);
-+#endif
-+ if (fd->hints->cb_nodes == 1)
-+ MPI_Bcast(error_code, 1, MPI_INT,
-+ fd->hints->ranklist[0], fd->comm);
-+ else {
-+ tmp_error = *error_code;
-+ MPI_Allreduce(&tmp_error, error_code, 1, MPI_INT,
-+ MPI_MAX, fd->comm);
-+ }
-+#ifdef ADIOI_MPE_LOGGING
-+ MPE_Log_event(ADIOI_MPE_postwrite_b, 0, NULL);
-+#endif
-+
-+ if ((old_error != MPI_SUCCESS) && (old_error != MPI_ERR_IO))
-+ *error_code = old_error;
-+
-+
-+ if (!buftype_is_contig)
-+ ADIOI_Delete_flattened(datatype);
-+
-+ /* free all memory allocated for collective I/O */
-+ /* free others_req */
-+ for (i = 0; i < nprocs; i++) {
-+ if (others_req[i].count) {
-+ ADIOI_Free(others_req[i].offsets);
-+ ADIOI_Free(others_req[i].lens);
-+ ADIOI_Free(others_req[i].mem_ptrs);
-+ }
-+ }
-+ ADIOI_Free(others_req);
-+ /* free my_req here */
-+ for (i = 0; i < nprocs; i++) {
-+ if (my_req[i].count) {
-+ ADIOI_Free(my_req[i].offsets);
-+ ADIOI_Free(my_req[i].lens);
-+ }
-+ }
-+ ADIOI_Free(my_req);
-+ ADIOI_Free(buf_idx);
-+ ADIOI_Free(offset_list);
-+ ADIOI_Free(len_list);
-+ ADIOI_Free(st_offsets);
-+ ADIOI_Free(end_offsets);
-+ ADIOI_Free(striping_info);
-+
-+#ifdef HAVE_STATUS_SET_BYTES
-+ if (status) {
-+ int bufsize, size;
-+ /* Don't set status if it isn't needed */
-+ MPI_Type_size(datatype, &size);
-+ bufsize = size * count;
-+ MPIR_Status_set_bytes(status, datatype, bufsize);
-+ }
-+ /* This is a temporary way of filling in status. The right way is to
-+ * keep track of how much data was actually written during collective I/O.
-+ */
-+#endif
-+
-+ fd->fp_sys_posn = -1; /* set it to null. */
-+}
-+
-+/* If successful, error_code is set to MPI_SUCCESS. Otherwise an error
-+ * code is created and returned in error_code.
-+ */
-+static void ADIOI_LUSTRE_Exch_and_write(ADIO_File fd, void *buf,
-+ MPI_Datatype datatype, int nprocs,
-+ int myrank, ADIOI_Access *others_req,
-+ ADIOI_Access *my_req,
-+ ADIO_Offset *offset_list,
-+ int *len_list, int contig_access_count,
-+ int *striping_info, int *buf_idx,
-+ int *error_code)
-+{
-+ /* Send data to appropriate processes and write in sizes of no more
-+ * than lustre stripe_size.
-+ * The idea is to reduce the amount of extra memory required for
-+ * collective I/O. If all data were written all at once, which is much
-+ * easier, it would require temp space more than the size of user_buf,
-+ * which is often unacceptable. For example, to write a distributed
-+ * array to a file, where each local array is 8Mbytes, requiring
-+ * at least another 8Mbytes of temp space is unacceptable.
-+ */
-+
-+ int hole, i, j, m, flag, ntimes = 1 , max_ntimes, buftype_is_contig;
-+ ADIO_Offset st_loc = -1, end_loc = -1, min_st_loc, max_end_loc;
-+ ADIO_Offset off, req_off, send_off, iter_st_off, *off_list;
-+ ADIO_Offset max_size, step_size = 0;
-+ int real_size, req_len, send_len;
-+ int *recv_curr_offlen_ptr, *recv_count, *recv_size;
-+ int *send_curr_offlen_ptr, *send_size;
-+ int *partial_recv, *sent_to_proc, *recv_start_pos;
-+ int *send_buf_idx, *curr_to_proc, *done_to_proc;
-+ char *write_buf = NULL;
-+ MPI_Status status;
-+ ADIOI_Flatlist_node *flat_buf = NULL;
-+ MPI_Aint buftype_extent;
-+ int stripe_size = striping_info[0], avail_cb_nodes = striping_info[2];
-+ int data_sieving = 0;
-+
-+ *error_code = MPI_SUCCESS; /* changed below if error */
-+ /* only I/O errors are currently reported */
-+
-+ /* calculate the number of writes of stripe size to be done.
-+ * That gives the no. of communication phases as well.
-+ * Note:
-+ * Because we redistribute data in stripe-contiguous pattern for Lustre,
-+ * each process has the same no. of communication phases.
-+ */
-+
-+ for (i = 0; i < nprocs; i++) {
-+ if (others_req[i].count) {
-+ st_loc = others_req[i].offsets[0];
-+ end_loc = others_req[i].offsets[0];
-+ break;
-+ }
-+ }
-+ for (i = 0; i < nprocs; i++) {
-+ for (j = 0; j < others_req[i].count; j++) {
-+ st_loc = ADIOI_MIN(st_loc, others_req[i].offsets[j]);
-+ end_loc = ADIOI_MAX(end_loc, (others_req[i].offsets[j] +
-+ others_req[i].lens[j] - 1));
-+ }
-+ }
-+ /* this process does no writing. */
-+ if ((st_loc == -1) && (end_loc == -1))
-+ ntimes = 0;
-+ MPI_Allreduce(&end_loc, &max_end_loc, 1, MPI_LONG_LONG_INT, MPI_MAX, fd->comm);
-+ /* avoid min_st_loc be -1 */
-+ if (st_loc == -1)
-+ st_loc = max_end_loc;
-+ MPI_Allreduce(&st_loc, &min_st_loc, 1, MPI_LONG_LONG_INT, MPI_MIN, fd->comm);
-+ /* align downward */
-+ min_st_loc -= min_st_loc % (ADIO_Offset)stripe_size;
-+
-+ /* Each time, only avail_cb_nodes number of IO clients perform IO,
-+ * so, step_size=avail_cb_nodes*stripe_size IO will be performed at most,
-+ * and ntimes=whole_file_portion/step_size
-+ */
-+ step_size = (ADIO_Offset) avail_cb_nodes * stripe_size;
-+ max_ntimes = (int)((max_end_loc - min_st_loc) / step_size + 1);
-+ if (ntimes)
-+ write_buf = (char *) ADIOI_Malloc(stripe_size);
-+
-+ /* calculate the start offset for each iteration */
-+ off_list = (ADIO_Offset *) ADIOI_Malloc(max_ntimes * sizeof(ADIO_Offset));
-+ for (m = 0; m < max_ntimes; m ++)
-+ off_list[m] = max_end_loc;
-+ for (i = 0; i < nprocs; i++) {
-+ for (j = 0; j < others_req[i].count; j ++) {
-+ req_off = others_req[i].offsets[j];
-+ m = (int)((req_off - min_st_loc) / step_size);
-+ off_list[m] = ADIOI_MIN(off_list[m], req_off);
-+ }
-+ }
-+
-+ recv_curr_offlen_ptr = (int *) ADIOI_Calloc(nprocs, sizeof(int));
-+ send_curr_offlen_ptr = (int *) ADIOI_Calloc(nprocs, sizeof(int));
-+ /* their use is explained below. calloc initializes to 0. */
-+
-+ recv_count = (int *) ADIOI_Malloc(nprocs * sizeof(int));
-+ /* to store count of how many off-len pairs per proc are satisfied
-+ in an iteration. */
-+
-+ send_size = (int *) ADIOI_Malloc(nprocs * sizeof(int));
-+ /* total size of data to be sent to each proc. in an iteration.
-+ Of size nprocs so that I can use MPI_Alltoall later. */
-+
-+ recv_size = (int *) ADIOI_Malloc(nprocs * sizeof(int));
-+ /* total size of data to be recd. from each proc. in an iteration. */
-+
-+ sent_to_proc = (int *) ADIOI_Calloc(nprocs, sizeof(int));
-+ /* amount of data sent to each proc so far. Used in
-+ ADIOI_Fill_send_buffer. initialized to 0 here. */
-+
-+ send_buf_idx = (int *) ADIOI_Malloc(nprocs * sizeof(int));
-+ curr_to_proc = (int *) ADIOI_Malloc(nprocs * sizeof(int));
-+ done_to_proc = (int *) ADIOI_Malloc(nprocs * sizeof(int));
-+ /* Above three are used in ADIOI_Fill_send_buffer */
-+
-+ recv_start_pos = (int *) ADIOI_Malloc(nprocs * sizeof(int));
-+ /* used to store the starting value of recv_curr_offlen_ptr[i] in
-+ this iteration */
-+
-+ ADIOI_Datatype_iscontig(datatype, &buftype_is_contig);
-+ if (!buftype_is_contig) {
-+ ADIOI_Flatten_datatype(datatype);
-+ flat_buf = ADIOI_Flatlist;
-+ while (flat_buf->type != datatype)
-+ flat_buf = flat_buf->next;
-+ }
-+ MPI_Type_extent(datatype, &buftype_extent);
-+ /* I need to check if there are any outstanding nonblocking writes to
-+ * the file, which could potentially interfere with the writes taking
-+ * place in this collective write call. Since this is not likely to be
-+ * common, let me do the simplest thing possible here: Each process
-+ * completes all pending nonblocking operations before completing.
-+ */
-+ /*ADIOI_Complete_async(error_code);
-+ if (*error_code != MPI_SUCCESS) return;
-+ MPI_Barrier(fd->comm);
-+ */
-+
-+ iter_st_off = min_st_loc;
-+
-+ /* Although we have recognized the data according to OST index,
-+ * a read-modify-write will be done if there is a hole between the data.
-+ * For example: if blocksize=60, xfersize=30 and stripe_size=100,
-+ * then rank0 will collect data [0, 30] and [60, 90] then write. There
-+ * is a hole in [30, 60], which will cause a read-modify-write in [0, 90].
-+ *
-+ * To reduce its impact on the performance, we can disable data sieving
-+ * by hint "ds_in_coll".
-+ */
-+ /* check the hint for data sieving */
-+ data_sieving = fd->hints->fs_hints.lustre.ds_in_coll;
-+
-+ for (m = 0; m < max_ntimes; m++) {
-+ /* go through all others_req and my_req to check which will be received
-+ * and sent in this iteration.
-+ */
-+
-+ /* Note that MPI guarantees that displacements in filetypes are in
-+ monotonically nondecreasing order and that, for writes, the
-+ filetypes cannot specify overlapping regions in the file. This
-+ simplifies implementation a bit compared to reads. */
-+
-+ /*
-+ off = start offset in the file for the data to be written in
-+ this iteration
-+ iter_st_off = start offset of this iteration
-+ real_size = size of data written (bytes) corresponding to off
-+ max_size = possible maximum size of data written in this iteration
-+ req_off = offset in the file for a particular contiguous request minus
-+ what was satisfied in previous iteration
-+ send_off = offset the request needed by other processes in this iteration
-+ req_len = size corresponding to req_off
-+ send_len = size corresponding to send_off
-+ */
-+
-+ /* first calculate what should be communicated */
-+ for (i = 0; i < nprocs; i++)
-+ recv_count[i] = recv_size[i] = send_size[i] = 0;
-+
-+ off = off_list[m];
-+ max_size = ADIOI_MIN(step_size, max_end_loc - iter_st_off + 1);
-+ real_size = (int) ADIOI_MIN((off / stripe_size + 1) * stripe_size - off,
-+ end_loc - off + 1);
-+
-+ for (i = 0; i < nprocs; i++) {
-+ if (my_req[i].count) {
-+ for (j = send_curr_offlen_ptr[i]; j < my_req[i].count; j++) {
-+ send_off = my_req[i].offsets[j];
-+ send_len = my_req[i].lens[j];
-+ if (send_off < iter_st_off + max_size) {
-+ send_size[i] += send_len;
-+ } else {
-+ break;
-+ }
-+ }
-+ send_curr_offlen_ptr[i] = j;
-+ }
-+ if (others_req[i].count) {
-+ recv_start_pos[i] = recv_curr_offlen_ptr[i];
-+ for (j = recv_curr_offlen_ptr[i]; j < others_req[i].count; j++) {
-+ req_off = others_req[i].offsets[j];
-+ req_len = others_req[i].lens[j];
-+ if (req_off < iter_st_off + max_size) {
-+ recv_count[i]++;
-+ MPI_Address(write_buf + req_off - off,
-+ &(others_req[i].mem_ptrs[j]));
-+ recv_size[i] += req_len;
-+ } else {
-+ break;
-+ }
-+ }
-+ recv_curr_offlen_ptr[i] = j;
-+ }
-+ }
-+ /* use variable "hole" to pass data_sieving flag into W_Exchange_data */
-+ hole = data_sieving;
-+ ADIOI_LUSTRE_W_Exchange_data(fd, buf, write_buf, flat_buf, offset_list,
-+ len_list, send_size, recv_size, off, real_size,
-+ recv_count, recv_start_pos, partial_recv,
-+ sent_to_proc, nprocs, myrank,
-+ buftype_is_contig, contig_access_count,
-+ striping_info, others_req, send_buf_idx,
-+ curr_to_proc, done_to_proc, &hole, m,
-+ buftype_extent, buf_idx, error_code);
-+ if (*error_code != MPI_SUCCESS)
-+ goto over;
-+
-+ flag = 0;
-+ for (i = 0; i < nprocs; i++)
-+ if (recv_count[i]) {
-+ flag = 1;
-+ break;
-+ }
-+ if (flag) {
-+ /* check whether to do data sieving */
-+ if(data_sieving == ADIOI_HINT_ENABLE) {
-+ ADIO_WriteContig(fd, write_buf, real_size, MPI_BYTE,
-+ ADIO_EXPLICIT_OFFSET, off, &status,
-+ error_code);
-+ } else {
-+ /* if there is no hole, write data in one time;
-+ * otherwise, write data in several times */
-+ if (!hole) {
-+ ADIO_WriteContig(fd, write_buf, real_size, MPI_BYTE,
-+ ADIO_EXPLICIT_OFFSET, off, &status,
-+ error_code);
-+ } else {
-+ for (i = 0; i < nprocs; i++) {
-+ if (others_req[i].count) {
-+ for (j = 0; j < others_req[i].count; j++) {
-+ if (others_req[i].offsets[j] < off + real_size &&
-+ others_req[i].offsets[j] >= off) {
-+ ADIO_WriteContig(fd,
-+ write_buf + others_req[i].offsets[j] - off,
-+ others_req[i].lens[j],
-+ MPI_BYTE, ADIO_EXPLICIT_OFFSET,
-+ others_req[i].offsets[j], &status,
-+ error_code);
-+ if (*error_code != MPI_SUCCESS)
-+ goto over;
-+ }
-+ }
-+ }
-+ }
-+ }
-+ }
-+ if (*error_code != MPI_SUCCESS)
-+ goto over;
-+ }
-+ iter_st_off += max_size;
-+ }
-+over:
-+ if (ntimes)
-+ ADIOI_Free(write_buf);
-+ ADIOI_Free(recv_curr_offlen_ptr);
-+ ADIOI_Free(send_curr_offlen_ptr);
-+ ADIOI_Free(recv_count);
-+ ADIOI_Free(send_size);
-+ ADIOI_Free(recv_size);
-+ ADIOI_Free(sent_to_proc);
-+ ADIOI_Free(recv_start_pos);
-+ ADIOI_Free(send_buf_idx);
-+ ADIOI_Free(curr_to_proc);
-+ ADIOI_Free(done_to_proc);
-+ ADIOI_Free(off_list);
-+}
-+
-+/* Sets error_code to MPI_SUCCESS if successful, or creates an error code
-+ * in the case of error.
-+ */
-+static void ADIOI_LUSTRE_W_Exchange_data(ADIO_File fd, void *buf,
-+ char *write_buf,
-+ ADIOI_Flatlist_node *flat_buf,
-+ ADIO_Offset *offset_list,
-+ int *len_list, int *send_size,
-+ int *recv_size, ADIO_Offset off,
-+ int size, int *count,
-+ int *start_pos, int *partial_recv,
-+ int *sent_to_proc, int nprocs,
-+ int myrank, int buftype_is_contig,
-+ int contig_access_count,
-+ int *striping_info,
-+ ADIOI_Access *others_req,
-+ int *send_buf_idx,
-+ int *curr_to_proc, int *done_to_proc,
-+ int *hole, int iter,
-+ MPI_Aint buftype_extent,
-+ int *buf_idx, int *error_code)
-+{
-+ int i, j, nprocs_recv, nprocs_send, err;
-+ char **send_buf = NULL;
-+ MPI_Request *requests, *send_req;
-+ MPI_Datatype *recv_types;
-+ MPI_Status *statuses, status;
-+ int *srt_len, sum, sum_recv;
-+ ADIO_Offset *srt_off;
-+ int data_sieving = *hole;
-+ static char myname[] = "ADIOI_W_EXCHANGE_DATA";
-+
-+ /* create derived datatypes for recv */
-+ nprocs_recv = 0;
-+ for (i = 0; i < nprocs; i++)
-+ if (recv_size[i])
-+ nprocs_recv++;
-+
-+ recv_types = (MPI_Datatype *) ADIOI_Malloc((nprocs_recv + 1) *
-+ sizeof(MPI_Datatype));
-+ /* +1 to avoid a 0-size malloc */
-+
-+ j = 0;
-+ for (i = 0; i < nprocs; i++) {
-+ if (recv_size[i]) {
-+ MPI_Type_hindexed(count[i],
-+ &(others_req[i].lens[start_pos[i]]),
-+ &(others_req[i].mem_ptrs[start_pos[i]]),
-+ MPI_BYTE, recv_types + j);
-+ /* absolute displacements; use MPI_BOTTOM in recv */
-+ MPI_Type_commit(recv_types + j);
-+ j++;
-+ }
-+ }
-+
-+ /* To avoid a read-modify-write,
-+ * check if there are holes in the data to be written.
-+ * For this, merge the (sorted) offset lists others_req using a heap-merge.
-+ */
-+
-+ sum = 0;
-+ for (i = 0; i < nprocs; i++)
-+ sum += count[i];
-+ srt_off = (ADIO_Offset *) ADIOI_Malloc((sum + 1) * sizeof(ADIO_Offset));
-+ srt_len = (int *) ADIOI_Malloc((sum + 1) * sizeof(int));
-+ /* +1 to avoid a 0-size malloc */
-+
-+ ADIOI_Heap_merge(others_req, count, srt_off, srt_len, start_pos,
-+ nprocs, nprocs_recv, sum);
-+
-+ /* check if there are any holes */
-+ *hole = 0;
-+ for (i = 0; i < sum - 1; i++) {
-+ if (srt_off[i] + srt_len[i] < srt_off[i + 1]) {
-+ *hole = 1;
-+ break;
-+ }
-+ }
-+ /* In some cases (see John Bent ROMIO REQ # 835), an odd interaction
-+ * between aggregation, nominally contiguous regions, and cb_buffer_size
-+ * should be handled with a read-modify-write (otherwise we will write out
-+ * more data than we receive from everyone else (inclusive), so override
-+ * hole detection
-+ */
-+ if (*hole == 0) {
-+ sum_recv = 0;
-+ for (i = 0; i < nprocs; i++)
-+ sum_recv += recv_size[i];
-+ if (size > sum_recv)
-+ *hole = 1;
-+ }
-+ /* check the hint for data sieving */
-+ if (data_sieving == ADIOI_HINT_ENABLE && nprocs_recv && *hole) {
-+ ADIO_ReadContig(fd, write_buf, size, MPI_BYTE,
-+ ADIO_EXPLICIT_OFFSET, off, &status, &err);
-+ // --BEGIN ERROR HANDLING--
-+ if (err != MPI_SUCCESS) {
-+ *error_code = MPIO_Err_create_code(err,
-+ MPIR_ERR_RECOVERABLE,
-+ myname, __LINE__,
-+ MPI_ERR_IO,
-+ "**ioRMWrdwr", 0);
-+ ADIOI_Free(recv_types);
-+ ADIOI_Free(srt_off);
-+ ADIOI_Free(srt_len);
-+ return;
-+ }
-+ // --END ERROR HANDLING--
-+ }
-+ ADIOI_Free(srt_off);
-+ ADIOI_Free(srt_len);
-+
-+ nprocs_send = 0;
-+ for (i = 0; i < nprocs; i++)
-+ if (send_size[i])
-+ nprocs_send++;
-+
-+ if (fd->atomicity) {
-+ /* bug fix from Wei-keng Liao and Kenin Coloma */
-+ requests = (MPI_Request *) ADIOI_Malloc((nprocs_send + 1) *
-+ sizeof(MPI_Request));
-+ send_req = requests;
-+ } else {
-+ requests = (MPI_Request *) ADIOI_Malloc((nprocs_send + nprocs_recv + 1)*
-+ sizeof(MPI_Request));
-+ /* +1 to avoid a 0-size malloc */
-+
-+ /* post receives */
-+ j = 0;
-+ for (i = 0; i < nprocs; i++) {
-+ if (recv_size[i]) {
-+ MPI_Irecv(MPI_BOTTOM, 1, recv_types[j], i,
-+ myrank + i + 100 * iter, fd->comm, requests + j);
-+ j++;
-+ }
-+ }
-+ send_req = requests + nprocs_recv;
-+ }
-+
-+ /* post sends.
-+ * if buftype_is_contig, data can be directly sent from
-+ * user buf at location given by buf_idx. else use send_buf.
-+ */
-+ if (buftype_is_contig) {
-+ j = 0;
-+ for (i = 0; i < nprocs; i++)
-+ if (send_size[i]) {
-+ MPI_Isend(((char *) buf) + buf_idx[i], send_size[i],
-+ MPI_BYTE, i, myrank + i + 100 * iter, fd->comm,
-+ send_req + j);
-+ j++;
-+ buf_idx[i] += send_size[i];
-+ }
-+ } else if (nprocs_send) {
-+ /* buftype is not contig */
-+ send_buf = (char **) ADIOI_Malloc(nprocs * sizeof(char *));
-+ for (i = 0; i < nprocs; i++)
-+ if (send_size[i])
-+ send_buf[i] = (char *) ADIOI_Malloc(send_size[i]);
-+
-+ ADIOI_LUSTRE_Fill_send_buffer(fd, buf, flat_buf, send_buf, offset_list,
-+ len_list, send_size, send_req,
-+ sent_to_proc, nprocs, myrank,
-+ contig_access_count, striping_info,
-+ send_buf_idx, curr_to_proc, done_to_proc,
-+ iter, buftype_extent);
-+ /* the send is done in ADIOI_Fill_send_buffer */
-+ }
-+
-+ /* bug fix from Wei-keng Liao and Kenin Coloma */
-+ if (fd->atomicity) {
-+ j = 0;
-+ for (i = 0; i < nprocs; i++) {
-+ MPI_Status wkl_status;
-+ if (recv_size[i]) {
-+ MPI_Recv(MPI_BOTTOM, 1, recv_types[j], i,
-+ myrank + i + 100 * iter, fd->comm, &wkl_status);
-+ j++;
-+ }
-+ }
-+ }
-+
-+ for (i = 0; i < nprocs_recv; i++)
-+ MPI_Type_free(recv_types + i);
-+ ADIOI_Free(recv_types);
-+
-+ /* bug fix from Wei-keng Liao and Kenin Coloma */
-+ /* +1 to avoid a 0-size malloc */
-+ if (fd->atomicity) {
-+ statuses = (MPI_Status *) ADIOI_Malloc((nprocs_send + 1) *
-+ sizeof(MPI_Status));
-+ } else {
-+ statuses = (MPI_Status *) ADIOI_Malloc((nprocs_send + nprocs_recv + 1) *
-+ sizeof(MPI_Status));
-+ }
-+
-+#ifdef NEEDS_MPI_TEST
-+ i = 0;
-+ if (fd->atomicity) {
-+ /* bug fix from Wei-keng Liao and Kenin Coloma */
-+ while (!i)
-+ MPI_Testall(nprocs_send, send_req, &i, statuses);
-+ } else {
-+ while (!i)
-+ MPI_Testall(nprocs_send + nprocs_recv, requests, &i, statuses);
-+ }
-+#else
-+ /* bug fix from Wei-keng Liao and Kenin Coloma */
-+ if (fd->atomicity)
-+ MPI_Waitall(nprocs_send, send_req, statuses);
-+ else
-+ MPI_Waitall(nprocs_send + nprocs_recv, requests, statuses);
-+#endif
-+ ADIOI_Free(statuses);
-+ ADIOI_Free(requests);
-+ if (!buftype_is_contig && nprocs_send) {
-+ for (i = 0; i < nprocs; i++)
-+ if (send_size[i])
-+ ADIOI_Free(send_buf[i]);
-+ ADIOI_Free(send_buf);
-+ }
-+}
-+
-+#define ADIOI_BUF_INCR \
-+{ \
-+ while (buf_incr) { \
-+ size_in_buf = ADIOI_MIN(buf_incr, flat_buf_sz); \
-+ user_buf_idx += size_in_buf; \
-+ flat_buf_sz -= size_in_buf; \
-+ if (!flat_buf_sz) { \
-+ if (flat_buf_idx < (flat_buf->count - 1)) flat_buf_idx++; \
-+ else { \
-+ flat_buf_idx = 0; \
-+ n_buftypes++; \
-+ } \
-+ user_buf_idx = flat_buf->indices[flat_buf_idx] + \
-+ n_buftypes*buftype_extent; \
-+ flat_buf_sz = flat_buf->blocklens[flat_buf_idx]; \
-+ } \
-+ buf_incr -= size_in_buf; \
-+ } \
-+}
-+
-+
-+#define ADIOI_BUF_COPY \
-+{ \
-+ while (size) { \
-+ size_in_buf = ADIOI_MIN(size, flat_buf_sz); \
-+ memcpy(&(send_buf[p][send_buf_idx[p]]), \
-+ ((char *) buf) + user_buf_idx, size_in_buf); \
-+ send_buf_idx[p] += size_in_buf; \
-+ user_buf_idx += size_in_buf; \
-+ flat_buf_sz -= size_in_buf; \
-+ if (!flat_buf_sz) { \
-+ if (flat_buf_idx < (flat_buf->count - 1)) flat_buf_idx++; \
-+ else { \
-+ flat_buf_idx = 0; \
-+ n_buftypes++; \
-+ } \
-+ user_buf_idx = flat_buf->indices[flat_buf_idx] + \
-+ n_buftypes*buftype_extent; \
-+ flat_buf_sz = flat_buf->blocklens[flat_buf_idx]; \
-+ } \
-+ size -= size_in_buf; \
-+ buf_incr -= size_in_buf; \
-+ } \
-+ ADIOI_BUF_INCR \
-+}
-+
-+static void ADIOI_LUSTRE_Fill_send_buffer(ADIO_File fd, void *buf,
-+ ADIOI_Flatlist_node *flat_buf,
-+ char **send_buf,
-+ ADIO_Offset *offset_list,
-+ int *len_list, int *send_size,
-+ MPI_Request *requests,
-+ int *sent_to_proc, int nprocs,
-+ int myrank,
-+ int contig_access_count,
-+ int *striping_info,
-+ int *send_buf_idx,
-+ int *curr_to_proc,
-+ int *done_to_proc, int iter,
-+ MPI_Aint buftype_extent)
-+{
-+ /* this function is only called if buftype is not contig */
-+ int i, p, flat_buf_idx, size;
-+ int flat_buf_sz, buf_incr, size_in_buf, jj, n_buftypes;
-+ ADIO_Offset off, len, rem_len, user_buf_idx;
-+
-+ /* curr_to_proc[p] = amount of data sent to proc. p that has already
-+ * been accounted for so far
-+ * done_to_proc[p] = amount of data already sent to proc. p in
-+ * previous iterations
-+ * user_buf_idx = current location in user buffer
-+ * send_buf_idx[p] = current location in send_buf of proc. p
-+ */
-+
-+ for (i = 0; i < nprocs; i++) {
-+ send_buf_idx[i] = curr_to_proc[i] = 0;
-+ done_to_proc[i] = sent_to_proc[i];
-+ }
-+ jj = 0;
-+
-+ user_buf_idx = flat_buf->indices[0];
-+ flat_buf_idx = 0;
-+ n_buftypes = 0;
-+ flat_buf_sz = flat_buf->blocklens[0];
-+
-+ /* flat_buf_idx = current index into flattened buftype
-+ * flat_buf_sz = size of current contiguous component in flattened buf
-+ */
-+ for (i = 0; i < contig_access_count; i++) {
-+ off = offset_list[i];
-+ rem_len = (ADIO_Offset) len_list[i];
-+
-+ /*this request may span to more than one process */
-+ while (rem_len != 0) {
-+ len = rem_len;
-+ /* NOTE: len value is modified by ADIOI_Calc_aggregator() to be no
-+ * longer than the single region that processor "p" is responsible
-+ * for.
-+ */
-+ p = ADIOI_LUSTRE_Calc_aggregator(fd, off, &len, striping_info);
-+
-+ if (send_buf_idx[p] < send_size[p]) {
-+ if (curr_to_proc[p] + len > done_to_proc[p]) {
-+ if (done_to_proc[p] > curr_to_proc[p]) {
-+ size = (int) ADIOI_MIN(curr_to_proc[p] + len -
-+ done_to_proc[p],
-+ send_size[p] -
-+ send_buf_idx[p]);
-+ buf_incr = done_to_proc[p] - curr_to_proc[p];
-+ ADIOI_BUF_INCR
-+ buf_incr = (int) (curr_to_proc[p] + len -
-+ done_to_proc[p]);
-+ curr_to_proc[p] = done_to_proc[p] + size;
-+ ADIOI_BUF_COPY
-+ } else {
-+ size = (int) ADIOI_MIN(len, send_size[p] -
-+ send_buf_idx[p]);
-+ buf_incr = (int) len;
-+ curr_to_proc[p] += size;
-+ ADIOI_BUF_COPY
-+ }
-+ if (send_buf_idx[p] == send_size[p]) {
-+ MPI_Isend(send_buf[p], send_size[p], MPI_BYTE, p,
-+ myrank + p + 100 * iter, fd->comm,
-+ requests + jj);
-+ jj++;
-+ }
-+ } else {
-+ curr_to_proc[p] += (int) len;
-+ buf_incr = (int) len;
-+ ADIOI_BUF_INCR
-+ }
-+ } else {
-+ buf_incr = (int) len;
-+ ADIOI_BUF_INCR
-+ }
-+ off += len;
-+ rem_len -= len;
-+ }
-+ }
-+ for (i = 0; i < nprocs; i++)
-+ if (send_size[i])
-+ sent_to_proc[i] = curr_to_proc[i];
-+}
-diff -ruN adio/ad_lustre_orig/ad_lustre_wrstr.c adio/ad_lustre/ad_lustre_wrstr.c
---- adio/ad_lustre_orig/ad_lustre_wrstr.c 1970-01-01 08:00:00.000000000 +0800
-+++ adio/ad_lustre/ad_lustre_wrstr.c 2009-02-27 10:35:18.000000000 +0800
-@@ -0,0 +1,467 @@
-+/* -*- Mode: C; c-basic-offset:4 ; -*- */
-+/*
-+ * Copyright (C) 1997 University of Chicago.
-+ * See COPYRIGHT notice in top-level directory.
-+ *
-+ * Copyright (C) 2007 Oak Ridge National Laboratory
-+ *
-+ * Copyright (c) 2008, 2010, Oracle and/or its affiliates. All rights reserved.
-+ */
-+
-+#include "ad_lustre.h"
-+#include "adio_extern.h"
-+
-+#define ADIOI_BUFFERED_WRITE \
-+{ \
-+ if (req_off >= writebuf_off + writebuf_len) { \
-+ if (writebuf_len) { \
-+ ADIO_WriteContig(fd, writebuf, writebuf_len, MPI_BYTE, \
-+ ADIO_EXPLICIT_OFFSET, writebuf_off, &status1, error_code); \
-+ if (!(fd->atomicity)) \
-+ ADIOI_UNLOCK(fd, writebuf_off, SEEK_SET, writebuf_len); \
-+ if (*error_code != MPI_SUCCESS) { \
-+ *error_code = MPIO_Err_create_code(*error_code, \
-+ MPIR_ERR_RECOVERABLE, myname, \
-+ __LINE__, MPI_ERR_IO, \
-+ "**iowswc", 0); \
-+ ADIOI_Free(writebuf); \
-+ return; \
-+ } \
-+ } \
-+ writebuf_off = req_off; \
-+ /* stripe_size alignment */ \
-+ writebuf_len = (int) ADIOI_MIN(end_offset - writebuf_off + 1, \
-+ (writebuf_off / stripe_size + 1) * \
-+ stripe_size - writebuf_off);\
-+ if (!(fd->atomicity)) \
-+ ADIOI_WRITE_LOCK(fd, writebuf_off, SEEK_SET, writebuf_len); \
-+ ADIO_ReadContig(fd, writebuf, writebuf_len, MPI_BYTE, ADIO_EXPLICIT_OFFSET,\
-+ writebuf_off, &status1, error_code); \
-+ if (*error_code != MPI_SUCCESS) { \
-+ *error_code = MPIO_Err_create_code(*error_code, \
-+ MPIR_ERR_RECOVERABLE, myname, \
-+ __LINE__, MPI_ERR_IO, \
-+ "**iowsrc", 0); \
-+ ADIOI_Free(writebuf); \
-+ return; \
-+ } \
-+ } \
-+ write_sz = (int) ADIOI_MIN(req_len, writebuf_off + writebuf_len - req_off); \
-+ memcpy(writebuf + req_off - writebuf_off, (char *)buf + userbuf_off, write_sz);\
-+ while (write_sz != req_len) {\
-+ ADIO_WriteContig(fd, writebuf, writebuf_len, MPI_BYTE, \
-+ ADIO_EXPLICIT_OFFSET, writebuf_off, &status1, error_code); \
-+ if (!(fd->atomicity)) \
-+ ADIOI_UNLOCK(fd, writebuf_off, SEEK_SET, writebuf_len); \
-+ if (*error_code != MPI_SUCCESS) { \
-+ *error_code = MPIO_Err_create_code(*error_code, \
-+ MPIR_ERR_RECOVERABLE, myname, \
-+ __LINE__, MPI_ERR_IO, \
-+ "**iowswc", 0); \
-+ ADIOI_Free(writebuf); \
-+ return; \
-+ } \
-+ req_len -= write_sz; \
-+ userbuf_off += write_sz; \
-+ writebuf_off += writebuf_len; \
-+ /* stripe_size alignment */ \
-+ writebuf_len = (int) ADIOI_MIN(end_offset - writebuf_off + 1, \
-+ (writebuf_off / stripe_size + 1) * \
-+ stripe_size - writebuf_off);\
-+ if (!(fd->atomicity)) \
-+ ADIOI_WRITE_LOCK(fd, writebuf_off, SEEK_SET, writebuf_len); \
-+ ADIO_ReadContig(fd, writebuf, writebuf_len, MPI_BYTE, ADIO_EXPLICIT_OFFSET,\
-+ writebuf_off, &status1, error_code); \
-+ if (*error_code != MPI_SUCCESS) { \
-+ *error_code = MPIO_Err_create_code(*error_code, \
-+ MPIR_ERR_RECOVERABLE, myname, \
-+ __LINE__, MPI_ERR_IO, \
-+ "**iowsrc", 0); \
-+ ADIOI_Free(writebuf); \
-+ return; \
-+ } \
-+ write_sz = ADIOI_MIN(req_len, writebuf_len); \
-+ memcpy(writebuf, (char *)buf + userbuf_off, write_sz);\
-+ } \
-+}
-+
-+
-+/* this macro is used when filetype is contig and buftype is not contig.
-+ it does not do a read-modify-write and does not lock*/
-+#define ADIOI_BUFFERED_WRITE_WITHOUT_READ \
-+{ \
-+ if (req_off >= writebuf_off + writebuf_len) { \
-+ writebuf_off = req_off; \
-+ /* stripe_size alignment */ \
-+ writebuf_len = (int) ADIOI_MIN(end_offset - writebuf_off + 1, \
-+ (writebuf_off / stripe_size + 1) * \
-+ stripe_size - writebuf_off);\
-+ } \
-+ write_sz = (int) ADIOI_MIN(req_len, writebuf_off + writebuf_len - req_off); \
-+ memcpy(writebuf + req_off - writebuf_off, (char *)buf + userbuf_off, write_sz);\
-+ while (req_len) { \
-+ ADIO_WriteContig(fd, writebuf, writebuf_len, MPI_BYTE, \
-+ ADIO_EXPLICIT_OFFSET, writebuf_off, &status1, error_code); \
-+ if (*error_code != MPI_SUCCESS) { \
-+ *error_code = MPIO_Err_create_code(*error_code, \
-+ MPIR_ERR_RECOVERABLE, myname, \
-+ __LINE__, MPI_ERR_IO, \
-+ "**iowswc", 0); \
-+ ADIOI_Free(writebuf); \
-+ return; \
-+ } \
-+ req_len -= write_sz; \
-+ userbuf_off += write_sz; \
-+ writebuf_off += writebuf_len; \
-+ /* stripe_size alignment */ \
-+ writebuf_len = (int) ADIOI_MIN(end_offset - writebuf_off + 1, \
-+ (writebuf_off / stripe_size + 1) * \
-+ stripe_size - writebuf_off);\
-+ write_sz = ADIOI_MIN(req_len, writebuf_len); \
-+ memcpy(writebuf, (char *)buf + userbuf_off, write_sz);\
-+ } \
-+}
-+
-+void ADIOI_LUSTRE_WriteStrided(ADIO_File fd, void *buf, int count,
-+ MPI_Datatype datatype, int file_ptr_type,
-+ ADIO_Offset offset, ADIO_Status * status,
-+ int *error_code)
-+{
-+ /* offset is in units of etype relative to the filetype. */
-+ ADIOI_Flatlist_node *flat_buf, *flat_file;
-+ int i, j, k, bwr_size, fwr_size = 0, st_index = 0;
-+ int bufsize, num, size, sum, n_etypes_in_filetype, size_in_filetype;
-+ int n_filetypes, etype_in_filetype;
-+ ADIO_Offset abs_off_in_filetype = 0;
-+ int filetype_size, etype_size, buftype_size, req_len;
-+ MPI_Aint filetype_extent, buftype_extent;
-+ int buf_count, buftype_is_contig, filetype_is_contig;
-+ ADIO_Offset userbuf_off;
-+ ADIO_Offset off, req_off, disp, end_offset = 0, writebuf_off, start_off;
-+ char *writebuf;
-+ int flag, st_fwr_size, st_n_filetypes, writebuf_len, write_sz;
-+ ADIO_Status status1;
-+ int new_bwr_size, new_fwr_size;
-+ int stripe_size;
-+ static char myname[] = "ADIOI_LUSTRE_WriteStrided";
-+ int myrank;
-+ MPI_Comm_rank(fd->comm, &myrank);
-+
-+ if (fd->hints->ds_write == ADIOI_HINT_DISABLE) {
-+ /* if user has disabled data sieving on writes, use naive
-+ * approach instead.
-+ */
-+ ADIOI_GEN_WriteStrided_naive(fd,
-+ buf,
-+ count,
-+ datatype,
-+ file_ptr_type,
-+ offset, status, error_code);
-+ return;
-+ }
-+
-+ *error_code = MPI_SUCCESS; /* changed below if error */
-+
-+ ADIOI_Datatype_iscontig(datatype, &buftype_is_contig);
-+ ADIOI_Datatype_iscontig(fd->filetype, &filetype_is_contig);
-+
-+ MPI_Type_size(fd->filetype, &filetype_size);
-+ if (!filetype_size) {
-+ *error_code = MPI_SUCCESS;
-+ return;
-+ }
-+
-+ MPI_Type_extent(fd->filetype, &filetype_extent);
-+ MPI_Type_size(datatype, &buftype_size);
-+ MPI_Type_extent(datatype, &buftype_extent);
-+ etype_size = fd->etype_size;
-+
-+ bufsize = buftype_size * count;
-+
-+ /* get striping info */
-+ stripe_size = fd->hints->striping_unit;
-+
-+ /* Different buftype to different filetype */
-+ if (!buftype_is_contig && filetype_is_contig) {
-+ /* noncontiguous in memory, contiguous in file. */
-+ ADIOI_Flatten_datatype(datatype);
-+ flat_buf = ADIOI_Flatlist;
-+ while (flat_buf->type != datatype)
-+ flat_buf = flat_buf->next;
-+
-+ off = (file_ptr_type == ADIO_INDIVIDUAL) ? fd->fp_ind :
-+ fd->disp + etype_size * offset;
-+
-+ start_off = off;
-+ end_offset = start_off + bufsize - 1;
-+ writebuf_off = start_off;
-+ /* write stripe size buffer each time */
-+ writebuf = (char *) ADIOI_Malloc(ADIOI_MIN(bufsize, stripe_size));
-+ writebuf_len = (int) ADIOI_MIN(bufsize,
-+ (writebuf_off / stripe_size + 1) *
-+ stripe_size - writebuf_off);
-+
-+ /* if atomicity is true, lock the region to be accessed */
-+ if (fd->atomicity)
-+ ADIOI_WRITE_LOCK(fd, start_off, SEEK_SET, bufsize);
-+
-+ for (j = 0; j < count; j++) {
-+ for (i = 0; i < flat_buf->count; i++) {
-+ userbuf_off = j * buftype_extent + flat_buf->indices[i];
-+ req_off = off;
-+ req_len = flat_buf->blocklens[i];
-+ ADIOI_BUFFERED_WRITE_WITHOUT_READ
-+ off += flat_buf->blocklens[i];
-+ }
-+ }
-+
-+ /* write the buffer out finally */
-+ ADIO_WriteContig(fd, writebuf, writebuf_len, MPI_BYTE,
-+ ADIO_EXPLICIT_OFFSET, writebuf_off, &status1,
-+ error_code);
-+
-+ if (fd->atomicity)
-+ ADIOI_UNLOCK(fd, start_off, SEEK_SET, bufsize);
-+ if (*error_code != MPI_SUCCESS) {
-+ ADIOI_Free(writebuf);
-+ return;
-+ }
-+ ADIOI_Free(writebuf);
-+ if (file_ptr_type == ADIO_INDIVIDUAL)
-+ fd->fp_ind = off;
-+ } else {
-+ /* noncontiguous in file */
-+ /* filetype already flattened in ADIO_Open */
-+ flat_file = ADIOI_Flatlist;
-+ while (flat_file->type != fd->filetype)
-+ flat_file = flat_file->next;
-+ disp = fd->disp;
-+
-+ if (file_ptr_type == ADIO_INDIVIDUAL) {
-+ offset = fd->fp_ind; /* in bytes */
-+ n_filetypes = -1;
-+ flag = 0;
-+ while (!flag) {
-+ n_filetypes++;
-+ for (i = 0; i < flat_file->count; i++) {
-+ if (disp + flat_file->indices[i] +
-+ (ADIO_Offset) n_filetypes * filetype_extent +
-+ flat_file->blocklens[i] >= offset) {
-+ st_index = i;
-+ fwr_size = (int) (disp + flat_file->indices[i] +
-+ (ADIO_Offset) n_filetypes *
-+ filetype_extent +
-+ flat_file->blocklens[i] -
-+ offset);
-+ flag = 1;
-+ break;
-+ }
-+ }
-+ }
-+ } else {
-+ n_etypes_in_filetype = filetype_size / etype_size;
-+ n_filetypes = (int) (offset / n_etypes_in_filetype);
-+ etype_in_filetype = (int) (offset % n_etypes_in_filetype);
-+ size_in_filetype = etype_in_filetype * etype_size;
-+
-+ sum = 0;
-+ for (i = 0; i < flat_file->count; i++) {
-+ sum += flat_file->blocklens[i];
-+ if (sum > size_in_filetype) {
-+ st_index = i;
-+ fwr_size = sum - size_in_filetype;
-+ abs_off_in_filetype = flat_file->indices[i] +
-+ size_in_filetype - (sum - flat_file->blocklens[i]);
-+ break;
-+ }
-+ }
-+
-+ /* abs. offset in bytes in the file */
-+ offset = disp + (ADIO_Offset) n_filetypes *filetype_extent +
-+ abs_off_in_filetype;
-+ }
-+
-+ start_off = offset;
-+
-+ /* If the file bytes is actually contiguous, we do not need data sieve at all */
-+ if (bufsize <= fwr_size) {
-+ req_off = start_off;
-+ req_len = bufsize;
-+ end_offset = start_off + bufsize - 1;
-+ writebuf = (char *) ADIOI_Malloc(ADIOI_MIN(bufsize, stripe_size));
-+ memset(writebuf, -1, ADIOI_MIN(bufsize, stripe_size));
-+ writebuf_off = 0;
-+ writebuf_len = 0;
-+ userbuf_off = 0;
-+ ADIOI_BUFFERED_WRITE_WITHOUT_READ
-+ } else {
-+ /* Calculate end_offset, the last byte-offset that will be accessed.
-+ e.g., if start_offset=0 and 100 bytes to be write, end_offset=99 */
-+ st_fwr_size = fwr_size;
-+ st_n_filetypes = n_filetypes;
-+ i = 0;
-+ j = st_index;
-+ off = offset;
-+ fwr_size = ADIOI_MIN(st_fwr_size, bufsize);
-+ while (i < bufsize) {
-+ i += fwr_size;
-+ end_offset = off + fwr_size - 1;
-+
-+ if (j < (flat_file->count - 1))
-+ j++;
-+ else {
-+ j = 0;
-+ n_filetypes++;
-+ }
-+
-+ off = disp + flat_file->indices[j] +
-+ (ADIO_Offset) n_filetypes * filetype_extent;
-+ fwr_size = ADIOI_MIN(flat_file->blocklens[j], bufsize - i);
-+ }
-+
-+ writebuf_off = 0;
-+ writebuf_len = 0;
-+ writebuf = (char *) ADIOI_Malloc(stripe_size);
-+ memset(writebuf, -1, stripe_size);
-+ /* if atomicity is true, lock the region to be accessed */
-+ if (fd->atomicity)
-+ ADIOI_WRITE_LOCK(fd, start_off, SEEK_SET, bufsize);
-+
-+ if (buftype_is_contig && !filetype_is_contig) {
-+ /* contiguous in memory, noncontiguous in file. should be the most
-+ common case. */
-+ i = 0;
-+ j = st_index;
-+ off = offset;
-+ n_filetypes = st_n_filetypes;
-+ fwr_size = ADIOI_MIN(st_fwr_size, bufsize);
-+ while (i < bufsize) {
-+ if (fwr_size) {
-+ /* TYPE_UB and TYPE_LB can result in
-+ fwr_size = 0. save system call in such cases */
-+ /*
-+ lseek(fd->fd_sys, off, SEEK_SET);
-+ err = write(fd->fd_sys, ((char *) buf) + i, fwr_size);
-+ */
-+ req_off = off;
-+ req_len = fwr_size;
-+ userbuf_off = i;
-+ ADIOI_BUFFERED_WRITE
-+ }
-+ i += fwr_size;
-+
-+ if (off + fwr_size < disp + flat_file->indices[j] +
-+ flat_file->blocklens[j] +
-+ (ADIO_Offset) n_filetypes * filetype_extent)
-+ off += fwr_size;
-+ /* did not reach end of contiguous block in filetype.
-+ no more I/O needed. off is incremented by fwr_size. */
-+ else {
-+ if (j < (flat_file->count - 1))
-+ j++;
-+ else {
-+ j = 0;
-+ n_filetypes++;
-+ }
-+ off = disp + flat_file->indices[j] +
-+ (ADIO_Offset) n_filetypes * filetype_extent;
-+ fwr_size = ADIOI_MIN(flat_file->blocklens[j],
-+ bufsize - i);
-+ }
-+ }
-+ } else {
-+ /* noncontiguous in memory as well as in file */
-+ ADIOI_Flatten_datatype(datatype);
-+ flat_buf = ADIOI_Flatlist;
-+ while (flat_buf->type != datatype)
-+ flat_buf = flat_buf->next;
-+
-+ k = num = buf_count = 0;
-+ i = (int) (flat_buf->indices[0]);
-+ j = st_index;
-+ off = offset;
-+ n_filetypes = st_n_filetypes;
-+ fwr_size = st_fwr_size;
-+ bwr_size = flat_buf->blocklens[0];
-+
-+ while (num < bufsize) {
-+ size = ADIOI_MIN(fwr_size, bwr_size);
-+ if (size) {
-+ /*
-+ lseek(fd->fd_sys, off, SEEK_SET);
-+ err = write(fd->fd_sys, ((char *) buf) + i, size);
-+ */
-+ req_off = off;
-+ req_len = size;
-+ userbuf_off = i;
-+ ADIOI_BUFFERED_WRITE
-+ }
-+
-+ new_fwr_size = fwr_size;
-+ new_bwr_size = bwr_size;
-+
-+ if (size == fwr_size) {
-+ /* reached end of contiguous block in file */
-+ if (j < (flat_file->count - 1)) {
-+ j++;
-+ } else {
-+ j = 0;
-+ n_filetypes++;
-+ }
-+ off = disp + flat_file->indices[j] +
-+ (ADIO_Offset) n_filetypes * filetype_extent;
-+ new_fwr_size = flat_file->blocklens[j];
-+ if (size != bwr_size) {
-+ i += size;
-+ new_bwr_size -= size;
-+ }
-+ }
-+ if (size == bwr_size) {
-+ /* reached end of contiguous block in memory */
-+ k = (k + 1) % flat_buf->count;
-+ buf_count++;
-+ i = (int) (buftype_extent *
-+ (buf_count / flat_buf->count) +
-+ flat_buf->indices[k]);
-+ new_bwr_size = flat_buf->blocklens[k];
-+ if (size != fwr_size) {
-+ off += size;
-+ new_fwr_size -= size;
-+ }
-+ }
-+ num += size;
-+ fwr_size = new_fwr_size;
-+ bwr_size = new_bwr_size;
-+ }
-+ }
-+
-+ /* write the buffer out finally */
-+ if (writebuf_len) {
-+ ADIO_WriteContig(fd, writebuf, writebuf_len,
-+ MPI_BYTE, ADIO_EXPLICIT_OFFSET,
-+ writebuf_off, &status1, error_code);
-+ if (!(fd->atomicity))
-+ ADIOI_UNLOCK(fd, writebuf_off, SEEK_SET, writebuf_len);
-+ if (*error_code != MPI_SUCCESS) {
-+ ADIOI_Free(writebuf);
-+ return;
-+ }
-+ }
-+ if (fd->atomicity)
-+ ADIOI_UNLOCK(fd, start_off, SEEK_SET, bufsize);
-+ }
-+ ADIOI_Free(writebuf);
-+ if (file_ptr_type == ADIO_INDIVIDUAL)
-+ fd->fp_ind = off;
-+ }
-+ fd->fp_sys_posn = -1; /* set it to null. */
-+
-+#ifdef HAVE_STATUS_SET_BYTES
-+ MPIR_Status_set_bytes(status, datatype, bufsize);
-+ /* This is a temporary way of filling in status. The right way is to
-+ keep track of how much data was actually written by ADIOI_BUFFERED_WRITE. */
-+#endif
-+
-+ if (!buftype_is_contig)
-+ ADIOI_Delete_flattened(datatype);
-+}
-diff -ruN adio/ad_lustre_orig/Makefile.in adio/ad_lustre/Makefile.in
---- adio/ad_lustre_orig/Makefile.in 2008-09-17 14:36:56.000000000 +0800
-+++ adio/ad_lustre/Makefile.in 2008-10-17 17:03:06.000000000 +0800
-@@ -16,7 +16,9 @@
- @VPATH@
-
- AD_LUSTRE_OBJECTS = ad_lustre.o ad_lustre_open.o \
-- ad_lustre_rwcontig.o ad_lustre_hints.o
-+ ad_lustre_rwcontig.o ad_lustre_wrcoll.o ad_lustre_wrstr.o \
-+ ad_lustre_hints.o ad_lustre_aggregate.o
-+
-
- default: $(LIBNAME)
- @if [ "@ENABLE_SHLIB@" != "none" ] ; then \
-diff -ruN adio/ad_lustre_orig/README adio/ad_lustre/README
---- adio/ad_lustre_orig/README 2008-09-17 14:36:56.000000000 +0800
-+++ adio/ad_lustre/README 2009-04-24 09:46:20.000000000 +0800
-@@ -5,6 +5,21 @@
- o To post the code for ParColl (Partitioned collective IO)
-
- -----------------------------------------------------
-+V05:
-+-----------------------------------------------------
-+Improved data redistribution
-+ o Improve I/O pattern identification. Besides checking interleaving,
-+ if request I/O size is small, collective I/O will be performed.
-+ The hint bigsize can be used to define the req size value.
-+ o Provide hint CO for load balancing to control the number of
-+ IO clients for each OST
-+ o Produce stripe-contiguous I/O pattern that Lustre prefers
-+ o Control read-modify-write in data sieving in collective IO
-+ by hint ds_in_coll.
-+ o Reduce extent lock conflicts by make each OST accessed by one or
-+ more constant clients.
-+
-+-----------------------------------------------------
- V04:
- -----------------------------------------------------
- o Direct IO and Lockless IO support
---- adio/common/ad_write_coll_orig.c 2009-02-27 22:06:46.000000000 +0800
-+++ adio/common/ad_write_coll.c 2008-10-15 11:25:38.000000000 +0800
-@@ -42,7 +42,7 @@
- int *send_buf_idx, int *curr_to_proc,
- int *done_to_proc, int iter,
- MPI_Aint buftype_extent);
--static void ADIOI_Heap_merge(ADIOI_Access *others_req, int *count,
-+void ADIOI_Heap_merge(ADIOI_Access *others_req, int *count,
- ADIO_Offset *srt_off, int *srt_len, int *start_pos,
- int nprocs, int nprocs_recv, int total_elements);
-
-@@ -921,7 +921,7 @@
-
-
-
--static void ADIOI_Heap_merge(ADIOI_Access *others_req, int *count,
-+void ADIOI_Heap_merge(ADIOI_Access *others_req, int *count,
- ADIO_Offset *srt_off, int *srt_len, int *start_pos,
- int nprocs, int nprocs_recv, int total_elements)
- {
git://git.whamcloud.com / fs / lustre-release.git / blobdiff