Control: reassign -1 mpich
Control: retitle -1 fails to run basic ping test
Hello,
Lucas Nussbaum, le mar. 29 avril 2025 14:48:49 +0200, a ecrit:
> During a rebuild of all packages in sid, your package failed to build
> on amd64.
>
> Relevant part (hopefully):
The real reason is just before that :)
mpirun.mpich -np 2 --bind-to none ./build-mpich/test/mpi/mpi_ping | grep
"10000 16" || touch debian/failed
This program requires 2 MPI processes, aborting...
This program requires 2 MPI processes, aborting...
mpich fails to run a basic mpi ping test, it reports just one process
while have passed -np 2, so the testsuite cannot work of course, but
that is not eztrace's fault:
int main(int argc, char **argv) {
int comm_rank = -1;
int comm_size = -1;
char host_name[1024] = "";
[...]
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &comm_size);
MPI_Comm_rank(MPI_COMM_WORLD, &comm_rank);
if (gethostname(host_name, 1023) < 0) {
perror("gethostname");
exit(1);
}
if (comm_size != 2) {
fprintf(stderr, "This program requires 2 MPI processes, aborting...\n");
goto out;
}
[...]
}
Samuel
