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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "ad_pvfs2.h"
#include "adio_extern.h"
#include "ad_pvfs2_io.h"
#include "ad_pvfs2_common.h"
void ADIOI_PVFS2_WriteContig(ADIO_File fd, const void *buf, int count,
MPI_Datatype datatype, int file_ptr_type,
ADIO_Offset offset, ADIO_Status * status, int *error_code)
{
int ret;
MPI_Count datatype_size, len;
PVFS_Request file_req, mem_req;
PVFS_sysresp_io resp_io;
ADIOI_PVFS2_fs *pvfs_fs;
static char myname[] = "ADIOI_PVFS2_WRITECONTIG";
if (count == 0) {
#ifdef HAVE_STATUS_SET_BYTES
if (status)
MPIR_Status_set_bytes(status, datatype, 0);
#endif
*error_code = MPI_SUCCESS;
return;
}
pvfs_fs = (ADIOI_PVFS2_fs *) fd->fs_ptr;
MPI_Type_size_x(datatype, &datatype_size);
len = datatype_size * count;
ret = PVFS_Request_contiguous(len, PVFS_BYTE, &mem_req);
/* --BEGIN ERROR HANDLING-- */
if (ret != 0) {
*error_code = MPIO_Err_create_code(MPI_SUCCESS,
MPIR_ERR_RECOVERABLE,
myname, __LINE__,
ADIOI_PVFS2_error_convert(ret),
"Error in PVFS_Request_contiguous (memory)", 0);
return;
}
/* --END ERROR HANDLING-- */
ret = PVFS_Request_contiguous(len, PVFS_BYTE, &file_req);
/* --BEGIN ERROR HANDLING-- */
if (ret != 0) {
*error_code = MPIO_Err_create_code(MPI_SUCCESS,
MPIR_ERR_RECOVERABLE,
myname, __LINE__,
ADIOI_PVFS2_error_convert(ret),
"Error in PVFS_Request_contiguous (file)", 0);
return;
}
/* --END ERROR HANDLING-- */
if (file_ptr_type == ADIO_EXPLICIT_OFFSET) {
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event(ADIOI_MPE_write_a, 0, NULL);
#endif
ret = PVFS_sys_write(pvfs_fs->object_ref, file_req, offset, (void *) buf,
mem_req, &(pvfs_fs->credentials), &resp_io);
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event(ADIOI_MPE_write_b, 0, NULL);
#endif
/* --BEGIN ERROR HANDLING-- */
if (ret != 0) {
*error_code = MPIO_Err_create_code(MPI_SUCCESS,
MPIR_ERR_RECOVERABLE,
myname, __LINE__,
ADIOI_PVFS2_error_convert(ret),
"Error in PVFS_sys_write", 0);
goto fn_exit;
}
/* --END ERROR HANDLING-- */
fd->fp_sys_posn = offset + (int) resp_io.total_completed;
} else {
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event(ADIOI_MPE_write_a, 0, NULL);
#endif
ret = PVFS_sys_write(pvfs_fs->object_ref, file_req, fd->fp_ind, (void *) buf,
mem_req, &(pvfs_fs->credentials), &resp_io);
#ifdef ADIOI_MPE_LOGGING
MPE_Log_event(ADIOI_MPE_write_b, 0, NULL);
#endif
/* --BEGIN ERROR HANDLING-- */
if (ret != 0) {
*error_code = MPIO_Err_create_code(MPI_SUCCESS,
MPIR_ERR_RECOVERABLE,
myname, __LINE__,
ADIOI_PVFS2_error_convert(ret),
"Error in PVFS_sys_write", 0);
goto fn_exit;
}
/* --END ERROR HANDLING-- */
fd->fp_ind += (int) resp_io.total_completed;
fd->fp_sys_posn = fd->fp_ind;
}
#ifdef HAVE_STATUS_SET_BYTES
if (status)
MPIR_Status_set_bytes(status, datatype, resp_io.total_completed);
#endif
*error_code = MPI_SUCCESS;
fn_exit:
PVFS_Request_free(&file_req);
PVFS_Request_free(&mem_req);
return;
}
int ADIOI_PVFS2_WriteStridedListIO(ADIO_File fd, const void *buf, int count,
MPI_Datatype datatype, int file_ptr_type,
ADIO_Offset offset, ADIO_Status * status, int *error_code)
{
return ADIOI_PVFS2_StridedListIO(fd, (void *) buf, count,
datatype, file_ptr_type, offset, status, error_code, WRITE);
}
int ADIOI_PVFS2_WriteStridedDtypeIO(ADIO_File fd, const void *buf, int count,
MPI_Datatype datatype, int file_ptr_type,
ADIO_Offset offset, ADIO_Status * status, int *error_code)
{
return ADIOI_PVFS2_StridedDtypeIO(fd, (void *) buf, count,
datatype, file_ptr_type, offset, status, error_code, WRITE);
}
void ADIOI_PVFS2_WriteStrided(ADIO_File fd, const void *buf, int count,
MPI_Datatype datatype, int file_ptr_type,
ADIO_Offset offset, ADIO_Status * status, int *error_code)
{
/* four ways (to date) that we can carry out strided i/o accesses:
* - naive posix
* - 'true' Datatype (from avery)
* - new List I/O (from avery)
* - classic List I/O (the one that's always been in ROMIO)
* I imagine we'll keep Datatype as an optional optimization, and afer a
* release or two promote it to the default
*/
/* a lot of near-duplication from ADIOI_PVFS2_ReadStrided: for
* debugging/testing it's helpful to be able to turn on and off these
* optimizations separately for the read and write cases */
int ret = -1;
if (fd->hints->fs_hints.pvfs2.posix_write == ADIOI_HINT_ENABLE) {
ADIOI_GEN_WriteStrided_naive(fd, buf, count,
datatype, file_ptr_type, offset, status, error_code);
return;
}
if (fd->hints->fs_hints.pvfs2.dtype_write == ADIOI_HINT_ENABLE) {
ret = ADIOI_PVFS2_WriteStridedDtypeIO(fd, buf, count,
datatype, file_ptr_type, offset, status, error_code);
/* Fall back to list I/O if datatype I/O didn't work */
if (ret != 0) {
fprintf(stderr, "Falling back to list I/O since datatype I/O failed\n");
ret = ADIOI_PVFS2_WriteStridedListIO(fd, buf, count,
datatype, file_ptr_type,
offset, status, error_code);
}
return;
}
/* Use list I/O in the base case */
if (fd->hints->fs_hints.pvfs2.listio_write == ADIOI_HINT_ENABLE) {
ret = ADIOI_PVFS2_WriteStridedListIO(fd, buf, count, datatype,
file_ptr_type, offset, status, error_code);
return;
}
/* Use classic list I/O if no hints given base case */
ADIOI_PVFS2_OldWriteStrided(fd, buf, count, datatype,
file_ptr_type, offset, status, error_code);
return;
}
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