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chi_comm.cpp
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Fri, Dec 13, 16:44

chi_comm.cpp
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//
#include <string.h>
#include "structure_hpc.hpp"
#ifdef __WITH_MPI
#include <mpi.h>
#include "mpi_check.h"
//
void
delense_comm(int* numimagesfound, struct point* imagesposition, int* numimg, const int *nimages_strongLensing, const int* locimagesfound, struct point* image_pos, const int nsets, const int world_rank, const int world_size)
{
//
int numimagesfound_tmp[nsets];
struct point imagesposition_tmp[nsets][MAXIMPERSOURCE];
//
memset(numimagesfound_tmp, 0, nsets*sizeof(int));
memset(imagesposition_tmp, 0, nsets*sizeof(int));
//
int verbose = (world_rank == 0);
//
int total = 0;
//
if (!verbose)
{
MPI_CHECK(MPI_Send( numimg, 1, MPI_INT , 0, 666 + world_rank, MPI_COMM_WORLD ));
if (*numimg != 0)
{
MPI_CHECK(MPI_Send( locimagesfound, nsets , MPI_INT , 0, 666 + world_rank, MPI_COMM_WORLD ));
MPI_CHECK(MPI_Send( image_pos, nsets*MAXIMPERSOURCE*2, MPI_DOUBLE, 0, 667 + world_rank, MPI_COMM_WORLD ));
}
}
else
{
int image_sum = 0;
//
for (int ipe = 0; ipe < world_size; ++ipe)
{
MPI_Status status;
//
if (ipe == 0)
{
memcpy(&numimagesfound_tmp, locimagesfound, nsets*sizeof(int));
memcpy(&imagesposition_tmp, image_pos, nsets*MAXIMPERSOURCE*sizeof(point));
}
else
{
MPI_CHECK(MPI_Recv(numimg, 1, MPI_INT, ipe, 666 + ipe, MPI_COMM_WORLD, &status));
if (*numimg != 0)
{
MPI_CHECK(MPI_Recv(&numimagesfound_tmp, nsets , MPI_INT , ipe, 666 + ipe, MPI_COMM_WORLD, &status));
MPI_CHECK(MPI_Recv(&imagesposition_tmp, nsets*MAXIMPERSOURCE*2, MPI_DOUBLE, ipe, 667 + ipe, MPI_COMM_WORLD, &status));
}
}
//
//MPI_Reduce(&imagesfound_tmp, &total, ipe, MPI_INT, MPI_SUM, 0, MPI_COMM_WORLD);
//
if (*numimg != 0)
{
//for (int jj = 0; jj < runmode->nimagestot; ++jj)
//{
int loc_numimg = 0;
int loc_numimg_s = 0;
for (int ii = 0; ii < nsets; ++ii)
{
//int img_len = numimagesfound[ii][jj];
int img_len = numimagesfound_tmp[ii];
image_sum += img_len;
if (img_len != 0)
{
int loc_length = numimagesfound[ii];
memcpy(&imagesposition[ii*MAXIMPERSOURCE + loc_length], &imagesposition_tmp[ii], img_len*sizeof(point));
numimagesfound[ii] += img_len;
loc_numimg += img_len;
loc_numimg_s += nimages_strongLensing[ii];
//printf("%d: %d , img_len = %d, source = %d, sum = %d %d\n", ipe, ii, numimagesfound_tmp[ii], nimages_strongLensing[ii], loc_numimg, loc_numimg_s);
}
}
}
printf(" rank %d: Total number of images found = %d\n", ipe, *numimg);
}
}
}
#endif

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