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/*
* Copyright (C) by Argonne National Laboratory
* See COPYRIGHT in top-level directory
*/
#include "adio.h"
#include "adio_extern.h"
#ifdef AGGREGATION_PROFILE
#include "mpe.h"
#endif
#include <assert.h>
/* #define DEBUG */
void ADIOI_Calc_file_realms_user_size(ADIO_File fd, int fr_size,
int nprocs_for_coll,
ADIO_Offset * file_realm_st_offs,
MPI_Datatype * file_realm_types);
void ADIOI_Calc_file_realms_aar(ADIO_File fd, int nprocs_for_coll,
int pfr_enabled,
ADIO_Offset min_st_offset,
ADIO_Offset max_end_offset,
ADIO_Offset * file_realm_st_offs, MPI_Datatype * file_realm_types);
void ADIOI_Calc_file_realms_fsize(ADIO_File fd,
int nprocs_for_coll,
ADIO_Offset max_end_offset,
ADIO_Offset * file_realm_st_offs,
MPI_Datatype * file_realm_types);
void ADIOI_Create_fr_simpletype(int size, int nprocs_for_coll, MPI_Datatype * simpletype);
static void align_fr(int fr_size, ADIO_Offset fr_off, int alignment,
int *aligned_fr_size, ADIO_Offset * aligned_fr_off);
void ADIOI_Verify_fr(int nprocs_for_coll, ADIO_Offset * file_realm_st_offs,
MPI_Datatype * file_realm_types);
void ADIOI_Calc_file_realms(ADIO_File fd, ADIO_Offset min_st_offset, ADIO_Offset max_end_offset)
{
int nprocs_for_coll;
int file_realm_calc_type;
MPI_Datatype *file_realm_types = NULL;
ADIO_Offset *file_realm_st_offs = NULL;
#ifdef AGGREGATION_PROFILE
MPE_Log_event(5004, 0, NULL);
#endif
#ifdef DEBUG
printf("ADIOI_Calc_file_realms\n");
#endif
nprocs_for_coll = fd->hints->cb_nodes;
file_realm_calc_type = fd->hints->cb_fr_type;
/* If PFRs are disabled we know these pointers are not allocated */
if (fd->hints->cb_pfr != ADIOI_HINT_ENABLE) {
fd->file_realm_st_offs = NULL;
fd->file_realm_types = NULL;
}
if (nprocs_for_coll == 1) {
/* if there's only one aggregator, we can reset the file
* realms every single time */
if (fd->file_realm_st_offs == NULL) {
file_realm_st_offs = (ADIO_Offset *)
ADIOI_Malloc(sizeof(ADIO_Offset));
file_realm_types = (MPI_Datatype *)
ADIOI_Malloc(sizeof(MPI_Datatype));
} else {
file_realm_st_offs = fd->file_realm_st_offs;
file_realm_types = fd->file_realm_types;
}
*file_realm_st_offs = min_st_offset;
MPI_Type_contiguous((max_end_offset - min_st_offset + 1), MPI_BYTE, file_realm_types);
MPI_Type_commit(file_realm_types);
ADIOI_Flatten_datatype(*file_realm_types);
} else if (fd->file_realm_st_offs == NULL) {
file_realm_st_offs = (ADIO_Offset *)
ADIOI_Malloc(nprocs_for_coll * sizeof(ADIO_Offset));
file_realm_types = (MPI_Datatype *)
ADIOI_Malloc(nprocs_for_coll * sizeof(MPI_Datatype));
if (file_realm_calc_type == ADIOI_FR_AAR) {
ADIOI_Calc_file_realms_aar(fd, nprocs_for_coll,
fd->hints->cb_pfr,
min_st_offset, max_end_offset,
file_realm_st_offs, file_realm_types);
/* flatten file realm datatype for future use - only one
* because all are the same*/
ADIOI_Flatten_datatype(file_realm_types[0]);
} else if (file_realm_calc_type == ADIOI_FR_FSZ) {
ADIOI_Calc_file_realms_fsize(fd, nprocs_for_coll, max_end_offset,
file_realm_st_offs, file_realm_types);
/* flatten file realm datatype for future use - only one
* because all are the same*/
ADIOI_Flatten_datatype(file_realm_types[0]);
} else if (file_realm_calc_type == ADIOI_FR_USR_REALMS) {
/* copy user provided realm datatypes and realm offsets in
* hints to file descriptor. may also want to verify that
* the provided file realms are covering (for pfr at
* least) and non-overlapping */
} else if (file_realm_calc_type > 0) {
ADIOI_Calc_file_realms_user_size(fd, file_realm_calc_type,
nprocs_for_coll, file_realm_st_offs, file_realm_types);
/* flatten file realm datatype for future use - only one
* because all are the same */
ADIOI_Flatten_datatype(file_realm_types[0]);
}
}
fd->file_realm_st_offs = file_realm_st_offs;
fd->file_realm_types = file_realm_types;
#ifdef AGGREGATION_PROFILE
MPE_Log_event(5005, 0, NULL);
#endif
}
void ADIOI_Calc_file_realms_user_size(ADIO_File fd, int fr_size,
int nprocs_for_coll,
ADIO_Offset * file_realm_st_offs,
MPI_Datatype * file_realm_types)
{
int i;
int aligned_fr_size;
ADIO_Offset aligned_fr_off;
MPI_Datatype simpletype;
align_fr(fr_size, 0, fd->hints->cb_fr_alignment, &aligned_fr_size, &aligned_fr_off);
fr_size = aligned_fr_size;
ADIOI_Create_fr_simpletype(fr_size, nprocs_for_coll, &simpletype);
if (fd->hints->cb_pfr == ADIOI_HINT_ENABLE)
file_realm_st_offs[0] = 0;
else
file_realm_st_offs[0] = aligned_fr_off;
file_realm_types[0] = simpletype;
#ifdef DEBUG
printf("file_realm[0] = (%lld, %d)\n", (long long) file_realm_st_offs[0], fr_size);
#endif
for (i = 1; i < nprocs_for_coll; i++) {
file_realm_st_offs[i] = file_realm_st_offs[i - 1] + fr_size;
file_realm_types[i] = simpletype;
#ifdef DEBUG
printf("file_realm[%d] = (%lld, %d)\n", i, (long long) file_realm_st_offs[i],
aligned_fr_size);
#endif
}
}
/* takes an extra romio_cb_pfr param to decide whether file realms
* should start at byte 0 of the file*/
void ADIOI_Calc_file_realms_aar(ADIO_File fd, int nprocs_for_coll, int cb_pfr,
ADIO_Offset min_st_offset,
ADIO_Offset max_end_offset,
ADIO_Offset * file_realm_st_offs, MPI_Datatype * file_realm_types)
{
int fr_size, aligned_fr_size, i;
MPI_Datatype simpletype;
ADIO_Offset aligned_start_off;
char value[9];
fr_size = (max_end_offset - min_st_offset + nprocs_for_coll) / nprocs_for_coll;
align_fr(fr_size, min_st_offset, fd->hints->cb_fr_alignment,
&aligned_fr_size, &aligned_start_off);
fr_size = aligned_fr_size;
ADIOI_Create_fr_simpletype(fr_size, nprocs_for_coll, &simpletype);
if (cb_pfr == ADIOI_HINT_ENABLE)
file_realm_st_offs[0] = 0;
else
file_realm_st_offs[0] = aligned_start_off;
file_realm_types[0] = simpletype;
#ifdef DEBUG
printf("file_realm[0] = (%lld, %d)\n", (long long) file_realm_st_offs[0], fr_size);
#endif
for (i = 1; i < nprocs_for_coll; i++) {
file_realm_st_offs[i] = file_realm_st_offs[i - 1] + fr_size;
file_realm_types[i] = simpletype;
#ifdef DEBUG
printf("file_realm[%d] = (%lld, %d)\n", i, (long long) file_realm_st_offs[i], fr_size);
#endif
}
if (fd->hints->cb_pfr == ADIOI_HINT_ENABLE) {
MPL_snprintf(value, sizeof(value), "%d", fr_size);
ADIOI_Info_set(fd->info, "romio_cb_fr_type", value);
}
}
void ADIOI_Calc_file_realms_fsize(ADIO_File fd, int nprocs_for_coll,
ADIO_Offset max_end_offset,
ADIO_Offset * file_realm_st_offs, MPI_Datatype * file_realm_types)
{
int fr_size, aligned_fr_size, error_code, i;
int fsize;
ADIO_Offset aligned_fr_off;
ADIO_Fcntl_t fcntl_struct;
MPI_Datatype simpletype;
ADIO_Fcntl(fd, ADIO_FCNTL_GET_FSIZE, &fcntl_struct, &error_code);
/* use impending file size since a write call may lengthen the file */
fsize = MPL_MAX(fcntl_struct.fsize, max_end_offset + 1);
fr_size = (fsize + nprocs_for_coll - 1) / nprocs_for_coll;
align_fr(fr_size, 0, fd->hints->cb_fr_alignment, &aligned_fr_size, &aligned_fr_off);
ADIOI_Create_fr_simpletype(fr_size, nprocs_for_coll, &simpletype);
for (i = 0; i < nprocs_for_coll; i++) {
file_realm_st_offs[i] = fr_size * i;
file_realm_types[i] = simpletype;
}
}
/* creates a datatype with an empty trailing edge */
void ADIOI_Create_fr_simpletype(int size, int nprocs_for_coll, MPI_Datatype * simpletype)
{
MPI_Aint lb, ub;
MPI_Datatype type;
lb = 0;
ub = size * nprocs_for_coll;
MPI_Type_contiguous(size, MPI_BYTE, &type);
MPI_Type_create_resized(type, lb, ub, simpletype);
MPI_Type_free(&type);
MPI_Type_commit(simpletype);
}
/* Verify that file realms are covering (PFRs) and non-overlapping */
void ADIOI_Verify_fr(int nprocs_for_coll, ADIO_Offset * file_realm_st_offs,
MPI_Datatype * file_realm_types)
{
}
int ADIOI_Agg_idx(int rank, ADIO_File fd)
{
int i, cb_nodes, *ranklist;
cb_nodes = fd->hints->cb_nodes;
ranklist = fd->hints->ranklist;
for (i = 0; i < cb_nodes; i++) {
if (ranklist[i])
return i;
}
return -1;
}
static void align_fr(int fr_size, ADIO_Offset fr_off, int alignment,
int *aligned_fr_size, ADIO_Offset * aligned_fr_off)
{
*aligned_fr_off = fr_off - (fr_off % alignment);
*aligned_fr_size = ((fr_off + fr_size) / alignment) * alignment - *aligned_fr_off;
if ((fr_off + fr_size) % alignment)
*aligned_fr_size += alignment;
assert(!((*aligned_fr_off % alignment) || (*aligned_fr_size % alignment)));
}
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