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*****************************************************************************
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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_ones_unidir.c
Implemented functions:
IMB_unidir_put;
IMB_unidir_get;
IMB_ones_get;
IMB_ones_mget;
IMB_ones_put;
IMB_ones_mput;
***************************************************************************/
#include "IMB_declare.h"
#include "IMB_benchmark.h"
#include "IMB_prototypes.h"
/*************************************************/
void IMB_unidir_put (struct comm_info* c_info, int size, int n_sample,
MODES RUN_MODE, double* time)
/*
MPI-2 benchmark kernel
Driver for aggregate / non agg. unidirectional MPI_Put benchmarks
Input variables:
-c_info (type struct comm_info*)
Collection of all base data for MPI;
see [1] for more information
-size (type int)
Basic message size in bytes
-n_sample (type int)
Number of repetitions (for timing accuracy)
-RUN_MODE (type MODES)
Mode (aggregate/non aggregate; blocking/nonblocking);
see "IMB_benchmark.h" for definition
Output variables:
-time (type double*)
Timing result per sample
*/
{
double t1, t2;
Type_Size s_size,r_size;
int s_num, r_num;
int dest, source,sender;
MPI_Status stat;
ierr = 0;
/* GET SIZE OF DATA TYPE */
MPI_Type_size(c_info->s_data_type,&s_size);
MPI_Type_size(c_info->r_data_type,&r_size);
if ((s_size!=0) && (r_size!=0))
{
s_num=size/s_size;
r_num=size/r_size;
}
if (c_info->rank == c_info->pair0)
{
dest = c_info->pair1;
sender = 1;
}
else if (c_info->rank == c_info->pair1)
{
dest =c_info->pair0 ;
sender = 0;
}
if( !RUN_MODE->AGGREGATE )
IMB_ones_put( c_info,
s_num, dest,
r_num, sender,
size, n_sample,
time);
if( RUN_MODE->AGGREGATE )
IMB_ones_mput( c_info,
s_num, dest,
r_num, sender,
size, n_sample,
time);
}
/*************************************************************************/
void IMB_unidir_get (struct comm_info* c_info, int size, int n_sample,
MODES RUN_MODE, double* time)
/*
MPI-2 benchmark kernel
Driver for aggregate / non agg. unidirectional MPI_Get benchmarks
Input variables:
-c_info (type struct comm_info*)
Collection of all base data for MPI;
see [1] for more information
-size (type int)
Basic message size in bytes
-n_sample (type int)
Number of repetitions (for timing accuracy)
-RUN_MODE (type MODES)
Mode (aggregate/non aggregate; blocking/nonblocking);
see "IMB_benchmark.h" for definition
Output variables:
-time (type double*)
Timing result per sample
*/
{
double t1, t2;
Type_Size s_size,r_size;
int s_num, r_num;
int dest, source,sender;
int ierr;
MPI_Status stat;
/* GET SIZE OF DATA TYPE */
MPI_Type_size(c_info->s_data_type,&s_size);
MPI_Type_size(c_info->r_data_type,&r_size);
if ((s_size!=0) && (r_size!=0))
{
s_num=size/s_size;
r_num=size/r_size;
}
if (c_info->rank == c_info->pair0)
{
dest = c_info->pair1;
sender = 1;
}
else if (c_info->rank == c_info->pair1)
{
dest =c_info->pair0 ;
sender = 0;
}
if( !RUN_MODE->AGGREGATE )
IMB_ones_get( c_info,
s_num, dest,
r_num, sender,
size, n_sample,
time);
if( RUN_MODE->AGGREGATE )
IMB_ones_mget( c_info,
s_num, dest,
r_num, sender,
size, n_sample,
time);
}
void IMB_ones_get(struct comm_info* c_info, int s_num, int dest,
int r_num, int sender, int size,
int n_sample, double* time)
/*
Non aggregate MPI_Get + MPI_Win_fence
Input variables:
-c_info (type struct comm_info*)
Collection of all base data for MPI;
see [1] for more information
-s_num (type int)
#bytes to put if relevant for calling process
-dest (type int)
destination rank
-r_num (type int)
#bytes to get if relevant for calling process
-sender (type int)
logical flag: 1/0 for 'local process puts/gets'
-size (type int)
Basic message size in bytes
-n_sample (type int)
Number of repetitions (for timing accuracy)
-RUN_MODE (type MODES)
Mode (aggregate/non aggregate; blocking/nonblocking);
see "IMB_benchmark.h" for definition
Output variables:
-time (type double*)
Timing result per sample
*/
{
int i, ierr;
int s_size;
#ifdef CHECK
defect=0;
#endif
MPI_Type_size(c_info->s_data_type,&s_size);
if( c_info-> rank < 0 )
*time = 0.;
else
{
for(i=0; i<N_BARR; i++) MPI_Barrier(c_info->communicator);
*time = MPI_Wtime();
if( sender )
{
for(i=0;i< n_sample;i++)
{
/* "Send ", i.e. synchronize window */
ierr = MPI_Win_fence(0, c_info->WIN);
MPI_ERRHAND(ierr);
}
}
else
{
for(i=0;i< n_sample;i++)
{
/* "Receive" */
ierr = MPI_Get(c_info->r_buffer, r_num, c_info->r_data_type,
dest, i*s_num, s_num, c_info->s_data_type, c_info->WIN);
ierr = MPI_Win_fence(0, c_info->WIN);
MPI_ERRHAND(ierr);
DIAGNOSTICS("MPI_Get: ",c_info,c_info->r_buffer,r_num,r_num,i,0);
CHK_DIFF("MPI_Get",c_info, c_info->r_buffer, i*r_num,
size, size, asize,
get, 0, n_sample, i,
dest, &defect);
}
}
*time=(MPI_Wtime()-*time)/n_sample;
}
}
void IMB_ones_mget(struct comm_info* c_info, int s_num, int dest,
int r_num, int sender, int size,
int n_sample, double* time)
/*
Aggregate MPI_Get + MPI_Win_fence
Input variables:
-c_info (type struct comm_info*)
Collection of all base data for MPI;
see [1] for more information
-s_num (type int)
#bytes to put if relevant for calling process
-dest (type int)
destination rank
-r_num (type int)
#bytes to get if relevant for calling process
-sender (type int)
logical flag: 1/0 for 'local process puts/gets'
-size (type int)
Basic message size in bytes
-n_sample (type int)
Number of repetitions (for timing accuracy)
-RUN_MODE (type MODES)
Mode (aggregate/non aggregate; blocking/nonblocking);
see "IMB_benchmark.h" for definition
Output variables:
-time (type double*)
Timing result per sample
*/
{
int i, ierr;
char* recv;
#ifdef CHECK
defect=0;
#endif
if( c_info-> rank < 0 )
*time = 0.;
else
{
recv = (char*)c_info->r_buffer;
ierr = MPI_Win_fence(0, c_info->WIN);
MPI_ERRHAND(ierr);
for(i=0; i<N_BARR; i++) MPI_Barrier(c_info->communicator);
*time = MPI_Wtime();
if( !sender )
for(i=0;i< n_sample;i++)
{
ierr = MPI_Get((void*)(recv+i*r_num), r_num, c_info->r_data_type,
dest, i*s_num, s_num, c_info->s_data_type, c_info->WIN);
}
ierr = MPI_Win_fence(0, c_info->WIN);
MPI_ERRHAND(ierr);
*time=(MPI_Wtime()-*time)/n_sample;
#ifdef CHECK
if(!sender)
CHK_DIFF("MPI_Get",c_info, c_info->r_buffer, 0,
n_sample*r_num, n_sample*r_num, asize,
get, 0, n_sample, i,
dest, &defect);
#endif
}
}
void IMB_ones_put(struct comm_info* c_info, int s_num, int dest,
int r_num, int sender, int size,
int n_sample, double* time)
/*
Non aggregate MPI_Put + MPI_Win_fence
Input variables:
-c_info (type struct comm_info*)
Collection of all base data for MPI;
see [1] for more information
-s_num (type int)
#bytes to put if relevant for calling process
-dest (type int)
destination rank
-r_num (type int)
#bytes to get if relevant for calling process
-sender (type int)
logical flag: 1/0 for 'local process puts/gets'
-size (type int)
Basic message size in bytes
-n_sample (type int)
Number of repetitions (for timing accuracy)
-RUN_MODE (type MODES)
Mode (aggregate/non aggregate; blocking/nonblocking);
see "IMB_benchmark.h" for definition
Output variables:
-time (type double*)
Timing result per sample
*/
{
int i, ierr, r_size;
char* recv;
#ifdef CHECK
defect=0;
#endif
MPI_Type_size(c_info->r_data_type,&r_size);
recv = (char*)c_info->r_buffer;
if( c_info-> rank < 0 )
*time = 0.;
else
{
for(i=0; i<N_BARR; i++) MPI_Barrier(c_info->communicator);
*time = MPI_Wtime();
if( sender )
{
for(i=0;i< n_sample;i++)
{
/* Send */
ierr = MPI_Put(c_info->s_buffer, s_num, c_info->s_data_type,
dest, i*r_num, r_num, c_info->r_data_type, c_info->WIN);
ierr = MPI_Win_fence(0, c_info->WIN);
MPI_ERRHAND(ierr);
}
}
else
{
for(i=0;i< n_sample;i++)
{
/* "Receive", i.e. synchronize the window */
ierr = MPI_Win_fence(0, c_info->WIN);
MPI_ERRHAND(ierr);
DIAGNOSTICS("MPI_Put: ",c_info,c_info->r_buffer,r_num,r_num,i,0);
CHK_DIFF("MPI_Put",c_info, (void*)(recv+i*r_num), 0,
size, size, asize,
get, 0, n_sample, i,
dest, &defect);
}
}
*time=(MPI_Wtime()-*time)/n_sample;
}
}
void IMB_ones_mput(struct comm_info* c_info, int s_num, int dest,
int r_num, int sender, int size,
int n_sample, double* time)
/*
Aggregate MPI_Put + MPI_Win_fence
Input variables:
-c_info (type struct comm_info*)
Collection of all base data for MPI;
see [1] for more information
-s_num (type int)
#bytes to put if relevant for calling process
-dest (type int)
destination rank
-r_num (type int)
#bytes to get if relevant for calling process
-sender (type int)
logical flag: 1/0 for 'local process puts/gets'
-size (type int)
Basic message size in bytes
-n_sample (type int)
Number of repetitions (for timing accuracy)
-RUN_MODE (type MODES)
Mode (aggregate/non aggregate; blocking/nonblocking);
see "IMB_benchmark.h" for definition
Output variables:
-time (type double*)
Timing result per sample
*/
{
int i, ierr;
char* send;
#ifdef CHECK
defect=0;
#endif
if( c_info-> rank < 0 )
*time = 0.;
else
{
send = (char*)c_info->s_buffer;
ierr = MPI_Win_fence(0, c_info->WIN);
MPI_ERRHAND(ierr);
for(i=0; i<N_BARR; i++) MPI_Barrier(c_info->communicator);
*time = MPI_Wtime();
if( sender )
for(i=0;i< n_sample;i++)
{
ierr = MPI_Put((void*)(send+i*s_num), s_num, c_info->s_data_type,
dest, i*r_num, r_num, c_info->r_data_type, c_info->WIN);
MPI_ERRHAND(ierr);
}
ierr = MPI_Win_fence(0, c_info->WIN);
MPI_ERRHAND(ierr);
*time=(MPI_Wtime()-*time)/n_sample;
if(!sender)
CHK_DIFF("MPI_Put",c_info, c_info->r_buffer, 0,
n_sample*r_num, n_sample*r_num, asize,
get, 0, n_sample, -1,
dest, &defect);
}
}
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