No, that's the issue.
I had to disable it to get things working.
That's why I included my config settings - I couldn't figure out which
option enabled it, so I could remove it from the configuration...
On 06/18/2015 02:43 PM, Gilles Gouaillardet wrote:
Daniel,
ML module is not ready for production and is disabled by default.
Did you explicitly enable this module ?
If yes, I encourage you to disable it
Cheers,
Gilles
On Thursday, June 18, 2015, Daniel Letai <d...@letai.org.il
<mailto:d...@letai.org.il>> wrote:
given a simple hello.c:
#include <stdio.h>
#include <mpi.h>
int main(int argc, char* argv[])
{
int size, rank, len;
char name[MPI_MAX_PROCESSOR_NAME];
MPI_Init(&argc, &argv);
MPI_Comm_size(MPI_COMM_WORLD, &size);
MPI_Comm_rank(MPI_COMM_WORLD, &rank);
MPI_Get_processor_name(name, &len);
printf("%s: Process %d out of %d\n", name, rank, size);
MPI_Finalize();ffff
}
for n=1
mpirun -n 1 ./hello
it works correctly.
for n>1 it segfaults with signal 11
used gdb to trace the problem to ml coll:
Program received signal SIGSEGV, Segmentation fault.
0x00007ffff6750845 in ml_coll_hier_barrier_setup()
from <path to openmpi 1.8.5>/lib/openmpi/mca_coll_ml.so
running with
mpirun -n 2 --mca coll ^ml ./hello
works correctly
using mellanox ofed 2.3-2.0.5-rhel6.4-x86_64, if it's at all relevant.
openmpi 1.8.5 was built with following options:
rpmbuild --rebuild --define 'configure_options --with-verbs=/usr
--with-verbs-libdir=/usr/lib64 CC=gcc CXX=g++ FC=gfortran
CFLAGS="-g -O3" --enable-mpirun-prefix-by-default
--enable-orterun-prefix-by-default --disable-debug
--with-knem=/opt/knem-1.1.1.90mlnx --with-platform=optimized
--without-mpi-param-check
--with-contrib-vt-flags=--disable-iotrace --enable-builtin-atomics
--enable-cxx-exceptions --enable-sparse-groups
--enable-mpi-thread-multiple --enable-memchecker
--enable-btl-openib-failover --with-hwloc=internal --with-verbs
--with-x --with-slurm --with-pmi=/opt/slurm
--with-fca=/opt/mellanox/fca --with-mxm=/opt/mellanox/mxm
--with-hcoll=/opt/mellanox/hcoll' openmpi-1.8.5-1.src.rpm
gcc version 5.1.1
Thanks in advance
_______________________________________________
users mailing list
us...@open-mpi.org
Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users
Link to this post:
http://www.open-mpi.org/community/lists/users/2015/06/27154.php
_______________________________________________
users mailing list
us...@open-mpi.org
Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users
Link to this post:
http://www.open-mpi.org/community/lists/users/2015/06/27155.php
