/*****************************************************************************
* *
* Copyright (c) 2003-2006 Intel Corporation. *
* All rights reserved. *
* *
*****************************************************************************
This code is covered by the Community Source License (CPL), version
1.0 as published by IBM and reproduced in the file "license.txt" in the
"license" subdirectory. Redistribution in source and binary form, with
or without modification, is permitted ONLY within the regulations
contained in above mentioned license.
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within the regulations of the "License for Use of "Intel(R) MPI
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***************************************************************************
For more documentation than found here, see
[1] doc/ReadMe_IMB.txt
[2] Intel (R) MPI Benchmarks
Users Guide and Methodology Description
In
doc/IMB_ug.pdf
File: IMB.c
Implemented functions:
main;
***************************************************************************/
#include "mpi.h"
#include "IMB_declare.h"
#include "IMB_benchmark.h"
#include "IMB_prototypes.h"
/**********************************************************************/
int main(int argc, char **argv)
/*
Input variables:
-argc (type int)
Number of command line arguments
-argv (type char **)
List of command line arguments
Return value (type int)
0 always
*/
{
struct comm_info C_INFO; /* BASIC SETTINGS STRUCTURE */
struct Bench* BList; /* List of Benchmarks */
struct Bench* Bmark;
#ifdef CHECK
int NFAIL, NSUCCESS;
#endif
char *p;
int i,j,iter,imod,ierr;
int NP,NP_min;
int do_it ;
int header;
int size;
int MAXMSG;
int x_sample,n_sample;
MODES BMODE;
double time[MAX_TIMINGS];
Type_Size unit_size;
if( (ierr=MPI_Init_thread(&argc,&argv,MPI_THREAD_MULTIPLE,&mpi_thread_environment))!=MPI_SUCCESS) IMB_err_hand(1, ierr);
IMB_set_default(&C_INFO);
IMB_init_pointers(&C_INFO);
if( IMB_basic_input(&C_INFO,&BList,&argc,&argv,&NP_min)<0 )
{
/* IMB_3.0: help mode */
if( C_INFO.w_rank==0 ){
IMB_help();
}
MPI_Barrier(MPI_COMM_WORLD);
IMB_free_all(&C_INFO, &BList);
MPI_Finalize();
return 0;
}
IMB_show_selections(&C_INFO,BList);
/* LOOP OVER INDIVIDUAL BENCHMARKS */
j=0;
while( (p=BList[j].name) )
{
Bmark = BList+j;
if( Bmark->RUN_MODES[0].type != BTYPE_INVALID )
{
NP=max(1,min(C_INFO.w_num_procs,NP_min));
if( Bmark->RUN_MODES[0].type == SingleTransfer )
{
#ifndef MPIIO
NP = (min(2,C_INFO.w_num_procs));
#else
NP = 1;
#endif
}
do_it = 1;
/* LOOP OVER PROCESS NUMBERS */
while ( do_it )
{
if ( IMB_valid(&C_INFO,Bmark,NP) )
{
if(IMB_init_communicator(&C_INFO,NP)!=0) IMB_err_hand(0,-1);
#ifdef MPIIO
if(IMB_init_file(&C_INFO,Bmark,NP)!=0) IMB_err_hand(0,-1);
#endif
/* MINIMAL OUTPUT IF UNIT IS GIVEN */
if (C_INFO.w_rank==0)
{
if(unit != stdout)
printf
("# Running %s; see file \"%s\" for results\n",p,OUTPUT_FILENAME);
};
header=1;
MAXMSG=1<<MAXMSGLOG;
#ifdef EXT
MPI_Type_size(C_INFO.red_data_type,&unit_size);
#else
if (Bmark->reduction)
MPI_Type_size(C_INFO.red_data_type,&unit_size);
else MPI_Type_size(C_INFO.s_data_type,&unit_size);
#endif
MAXMSG=(1<<MAXMSGLOG)/unit_size* unit_size;
for( imod=0; imod < Bmark->N_Modes; imod++ )
{
BMODE=&Bmark->RUN_MODES[imod];
x_sample = BMODE->AGGREGATE ? MSGSPERSAMPLE : MSGS_NONAGGR;
/* July 2002 fix V2.2.1: */
#if (defined EXT || defined MPIIO)
if( Bmark->access==no ) x_sample=MSGS_NONAGGR;
#endif
header=header | (imod > 0);
iter=0;
size =0;
/* LOOP OVER MESSAGE LENGTHS */
while ( (C_INFO.n_lens==0&&size < MAXMSG)||
(C_INFO.n_lens>0 &&iter < C_INFO.n_lens))
{
if( iter == 0 )
{
if( C_INFO.n_lens>0 ) size=C_INFO.msglen[0];
else size = 0;
}
else if ( iter == 1 )
{
if( C_INFO.n_lens>0 ) size=C_INFO.msglen[1];
else
size = ((1<<MINMSGLOG) + unit_size - 1)/unit_size*unit_size;
#ifdef EXT
if( size < asize ) size = asize;
#endif
}
else
{
if( C_INFO.n_lens>0 ) size=C_INFO.msglen[iter];
else size = min(MAXMSG,size+size);
}
if( size> MAXMSG )
{
if( C_INFO.w_rank==0 )
fprintf(unit,"Attention, msg size %d truncated to %d\n",
size,MAXMSG);
size = MAXMSG;
}
size = (size+unit_size-1)/unit_size*unit_size;
if ( size>0 )
n_sample =max(1,min(OVERALL_VOL/size,x_sample));
else n_sample = x_sample ;
if( Bmark->RUN_MODES[0].type == Sync )
{
size=MAXMSG; iter = C_INFO.n_lens;
}
for(i=0; i<MAX_TIMINGS; i++) time[i] = 0.;
IMB_init_buffers(&C_INFO, Bmark, size);
IMB_init_transfer(&C_INFO, Bmark, size);
IMB_warm_up (&C_INFO,Bmark,iter);
Bmark->Benchmark(&C_INFO,size,n_sample,BMODE,time);
/* Synchronization, in particular for idle processes
which have to wait in a well defined manner */
MPI_Barrier(MPI_COMM_WORLD);
IMB_output (&C_INFO,Bmark,BMODE,header,size,n_sample,time);
IMB_close_transfer(&C_INFO, Bmark, size);
CHK_BRK;
header = 0;
iter++;
}
if( !Bmark->success && C_INFO.w_rank == 0 )
fprintf(unit,"\n\n!!! Benchmark unsuccessful !!!\n\n");
CHK_BRK;
}
CHK_BRK;
}
/* CALCULATE THE NUMBER OF PROCESSES FOR NEXT STEP */
if( NP == C_INFO.w_num_procs ) {do_it=0;}
else
{
NP=min(NP+NP,C_INFO.w_num_procs);
}
#ifdef MPIIO
if( Bmark->RUN_MODES[0].type == SingleTransfer ) do_it = 0;
#endif
CHK_BRK;
}
}
CHK_BRK;
j++;
}
#ifdef CHECK
if( C_INFO.w_rank == 0 )
{
j=0;
NFAIL=0;
NSUCCESS=0;
while( (p=BList[j].name) )
{
Bmark = BList+j;
if( Bmark->RUN_MODES[0].type != BTYPE_INVALID )
{
Bmark = BList+j;
if( !Bmark->success ) NFAIL ++;
else NSUCCESS++;
}
j++;
}
if( NFAIL == 0 && NSUCCESS>0 )
{
fprintf(unit,"\n\n!!!! ALL BENCHMARKS SUCCESSFUL !!!! \n\n");
}
else if( NSUCCESS>0 )
{
if( NFAIL == 1 )
fprintf(unit,"\n\n!!!! %d BENCHMARK FAILED !!!! \n\n",NFAIL);
else
fprintf(unit,"\n\n!!!! %d BENCHMARKS FAILED !!!! \n\n",NFAIL);
j=0;
while( (p=BList[j].name) )
{
Bmark = BList+j;
if( Bmark->RUN_MODES[0].type != BTYPE_INVALID )
{
if( Bmark->success ) fprintf(unit,"%s : Successful\n",p);
else fprintf(unit,"%s : FAILED !! \n",p);
}
j++;
}
}
}
#endif
IMB_end_msg(&C_INFO);
IMB_free_all(&C_INFO, &BList);
MPI_Finalize();
return 0;
}
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