Hi,
I am working on an application I'd like to parallellize with MPI. For
the momement only with liblam. The application already makes extensive
use of libglib. It seems that the program crashes when using libglib.
Does anybody have a suggestion how to use properly mpi and libglib?
I am using the current versions of libglib-2.0 and liblam on
Debian/Unstable.
Below a short example that works fine when using the printf() statement,
but crashes when g_message() is enabled.
Thanks,
Gerber
simple.c:
#include <stdio.h>
#include <stdlib.h>
#include <glib-2.0/glib.h>
#include <mpi.h>
/*-----------------------------------------------------------------------------
* Simple testing program for MPI and libglib
* Build with:
mpicc `pkg-config --cflags glib-2.0` -I/usr/include/glib-2.0 \
-DENABLE_MPI -g -O2 -c -o simple.o simple.c
mpicc -Wall -DENABLE_MPI -g -O2 -o simple simple.o -lglib-2.0 -lmpi
* Run with (after invoking lamboot):
mpirun -np 3 ./simple
*/
int main(int argc, char *argv[])
{
int me = 0, nprocs;
int namelen;
char processor_name[MPI_MAX_PROCESSOR_NAME];
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &nprocs);
MPI_Comm_rank(MPI_COMM_WORLD, &me);
MPI_Get_processor_name(processor_name, &namelen);
/* g_message("Process %d of %d at %s\n", me, nprocs, processor_name);
*/
printf("Process %d of %d at %s\n", me, nprocs, processor_name);
printf("%d: Calling MPI_Finalize()\n", me);
MPI_Finalize();
exit(0);
}
--
developer of Gpiv: software for Particle Image Velocimetry
URL: http:/gpiv.sourceforge.net
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