Hi!
I use OpenMPI 1.7.1 from MacPorts (+threads +gcc47). When compiling a simple
hello world program calling
MPI_Init_thread(&argc, &argv, MPI_THREAD_SERIALIZED, &provided);
the program hangs if run on more than one process. All works fine if I
- either use MPI_THREAD_SINGLE
- or use OpenMPI 1.6.4.
The actual compiler invocation and compiler version are
[Macintosh:~/tmp/hw] hep% openmpicc -o hw_mpi hw_mpi.c --showme
/usr/bin/clang -o hw_mpi hw_mpi.c -I/opt/local/include/openmpi -L/opt/local/lib
-lmpi
[Macintosh:~/tmp/hw] hep% /usr/bin/clang --version
Apple clang version 4.1 (tags/Apple/clang-421.11.66) (based on LLVM 3.1svn)
Target: x86_64-apple-darwin12.4.0
Thread model: posix
The full program code is shown below. I have also reported this to the MacPorts
bug tracker.
Best regards,
Hans E Plesser
------
#include <stdio.h>
#include <mpi.h>
int main(int argc, char **argv)
{
int provided;
MPI_Init_thread(&argc, &argv, MPI_THREAD_SERIALIZED, &provided);
printf("Provided threading level: %d.\n", provided);
int rank;
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
printf("Hello, world! This is rank %d.\n", rank);
MPI_Finalize();
return 0;
}
------
--
Dr. Hans Ekkehard Plesser, Associate Professor
Head, Basic Science Section
Dept. of Mathematical Sciences and Technology
Norwegian University of Life Sciences
PO Box 5003, 1432 Aas, Norway
Phone +47 6496 5467
Fax +47 6496 5401
Email hans.ekkehard.ples...@umb.no
Home http://arken.umb.no/~plesser
