On 27 August 2014 02:38, Jeff Squyres (jsquyres) <[email protected]> wrote:
> If you have reproducers, yes, that would be most helpful -- thanks.
>
Here you have another one...
$ cat igatherv.c
#include <mpi.h>
int main(int argc, char *argv[])
{
signed char a=1,b=2;
int rcounts[1] = {0};
int rdispls[1] = {0};
MPI_Request request;
MPI_Init(&argc, &argv);
MPI_Igatherv(&a, 0, MPI_SIGNED_CHAR,
&b, rcounts, rdispls, MPI_SIGNED_CHAR,
0, MPI_COMM_SELF, &request);
MPI_Wait(&request, MPI_STATUS_IGNORE);
MPI_Finalize();
return 0;
}
$ mpicc igatherv.c
$ ./a.out
malloc debug: Request for 0 bytes (nbc_internal.h, 496)
