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/* -*- Mode: C; c-basic-offset:4 ; -*- */
/*
* Copyright (c) 2018 The University of Tennessee and The University
* of Tennessee Research Foundation. All rights
* reserved.
* $COPYRIGHT$
*
* Additional copyrights may follow
*
* $HEADER$
*/
/**
* This test check the correct OMPI datatype description for
* extremely large types (over 4GB).
*/
#include <mpi.h>
#include <stdio.h>
#include <stddef.h>
#include <stdlib.h>
#include <string.h>
#include "ompi_config.h"
#include "ompi/datatype/ompi_datatype.h"
#include "opal/runtime/opal.h"
#include "opal/datatype/opal_convertor.h"
#include "opal/datatype/opal_datatype_internal.h"
#define MAX_IOVEC 10
#define MAX_CHUNK (1024*1024*1024) /* 1GB */
static int verbose = 0;
static size_t
count_length_via_convertor_raw(char* msg,
MPI_Datatype dtype, int count)
{
opal_convertor_t* pconv;
struct iovec iov[MAX_IOVEC];
uint32_t iov_count = MAX_IOVEC, i;
size_t length = MAX_CHUNK, packed_iovec = 0, packed = 0;
pconv = opal_convertor_create( opal_local_arch, 0 );
opal_convertor_prepare_for_send(pconv, (const struct opal_datatype_t *)dtype, 1, NULL);
while( 0 == opal_convertor_raw(pconv, iov, &iov_count, &length) ) {
if( verbose ) {
printf("iov_count = %d packed_iovec = %"PRIsize_t" length = %"PRIsize_t"\n",
iov_count, packed_iovec, length);
}
packed += length;
for( i = 0; i < iov_count; i++ ) {
packed_iovec += iov[i].iov_len;
if( verbose ) {
printf("[%s] add %"PRIsize_t" bytes -> so far %"PRIsize_t" bytes\n",
msg, iov[i].iov_len, packed_iovec);
}
}
if( packed != packed_iovec ) {
printf( "[%s] Raw data amount diverges %"PRIsize_t" != %"PRIsize_t"\n",
msg, packed, packed_iovec);
exit(-1);
}
iov_count = MAX_IOVEC; /* number of available iov */
length = MAX_CHUNK;
}
if( verbose ) {
printf("iov_count = %d packed_iovec = %"PRIsize_t" length = %"PRIsize_t"\n",
iov_count, packed_iovec, length);
}
packed += length;
for( i = 0; i < iov_count; i++ ) {
packed_iovec += iov[i].iov_len;
if( verbose ) {
printf("[%s] add %"PRIsize_t" bytes -> so far %"PRIsize_t" bytes\n",
msg, iov[i].iov_len, packed_iovec);
}
}
if( packed != packed_iovec ) {
printf( "[%s] Raw data amount diverges %"PRIsize_t" != %"PRIsize_t"\n",
msg, packed, packed_iovec);
exit(-1);
}
return packed_iovec;
}
int main(int argc, char * argv[])
{
int const per_process = 192;
int const per_type = 20000000;
int blocklen, stride, count;
int scounts[2] = {per_process, per_process};
int sdispls[2] = {3*per_process, 0*per_process};
int rcounts[2] = {per_process, per_process};
int rdispls[2] = {1*per_process, 2*per_process};
MPI_Datatype ddt, stype, rtype;
size_t length, packed;
opal_init(&argc, &argv);
ompi_datatype_init();
ompi_datatype_create_contiguous( per_type, MPI_FLOAT, &ddt);
/*
* Large sparse datatype: indexed contiguous
*/
ompi_datatype_create_indexed(2, scounts, sdispls, ddt, &stype);
ompi_datatype_commit(&stype);
packed = count_length_via_convertor_raw("1. INDEX", stype, 1);
opal_datatype_type_size(&stype->super, &length);
if( length != packed ) {
printf("Mismatched length of packed data to datatype size (%"PRIsize_t" != %"PRIsize_t")\n",
packed, length);
exit(-2);
}
ompi_datatype_destroy(&stype);
/*
* Large contiguous datatype: indexed contiguous
*/
ompi_datatype_create_indexed(2, rcounts, rdispls, ddt, &rtype);
ompi_datatype_commit(&rtype);
packed = count_length_via_convertor_raw("2. INDEX", rtype, 1);
opal_datatype_type_size(&rtype->super, &length);
if( length != packed ) {
printf("Mismatched length of packed data to datatype size (%"PRIsize_t" != %"PRIsize_t")\n",
packed, length);
exit(-2);
}
ompi_datatype_destroy(&rtype);
ompi_datatype_destroy(&ddt);
/*
* Large sparse datatype: vector
*/
count = INT_MAX / 2;
blocklen = stride = 4;
ompi_datatype_create_vector(count, blocklen, stride, MPI_FLOAT, &ddt);
ompi_datatype_commit(&ddt);
packed = count_length_via_convertor_raw("3. VECTOR", ddt, 1);
opal_datatype_type_size(&ddt->super, &length);
if( length != packed ) {
printf("Mismatched length of packed data to datatype size (%"PRIsize_t" != %"PRIsize_t")\n",
packed, length);
exit(-2);
}
ompi_datatype_destroy(&ddt);
/*
* Large sparse datatype: contiguous
*/
MPI_Datatype tmp;
ompi_datatype_create_contiguous(stride, MPI_FLOAT, &tmp);
ompi_datatype_create_contiguous(count, tmp, &ddt);
ompi_datatype_commit(&ddt);
packed = count_length_via_convertor_raw("4. CONTIG", ddt, 1);
opal_datatype_type_size(&ddt->super, &length);
if( length != packed ) {
printf("Mismatched length of packed data to datatype size (%"PRIsize_t" != %"PRIsize_t")\n",
packed, length);
exit(-2);
}
ompi_datatype_destroy(&ddt);
ompi_datatype_destroy(&tmp);
return 0;
}
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