ftrahay@joe0$ mpiexec --mca pml cm --mca mtl mx -machinefile ./joe -np 2 ./concurrent_ping
[1 communicating threads]
thread #0
[1 communicating threads]
[0]     1       3.066409           0.326           0.311
[0]     2       3.054011           0.655           0.625
[0]     4       3.055394           1.309           1.249
[0]     8       3.057003           2.617           2.496
[2 communicating threads]
thread #1
[2 communicating threads]
unknown request type 4
concurrent_ping: pml_cm_recvreq.c:53: mca_pml_cm_recv_request_completion: Assertion `0 == ((mca_pml_cm_thin_recv_request_t*)base_request)->req_base.req_pml_complete' failed.
[joe0:16337] *** Process received signal ***
[joe0:16337] Signal: Aborted (6)
[joe0:16337] Signal code:  (-6)
[joe0:16337] [ 0] /lib/libpthread.so.0 [0x7f5ed8efc7b0]
[joe0:16337] [ 1] /lib/libc.so.6(gsignal+0x35) [0x7f5ed8bcd065]
[joe0:16337] [ 2] /lib/libc.so.6(abort+0x183) [0x7f5ed8bd0153]
[joe0:16337] [ 3] /lib/libc.so.6(__assert_fail+0xe9) [0x7f5ed8bc6159]
[joe0:16337] [ 4] /home/ftrahay/sources/openmpi/trunk/install/lib/openmpi/mca_pml_cm.so [0x7f5ed67250bb]
[joe0:16337] [ 5] /home/ftrahay/sources/openmpi/trunk/install/lib/openmpi/mca_mtl_mx.so [0x7f5ed651e80a]
[joe0:16337] [ 6] /home/ftrahay/sources/openmpi/trunk/install//lib/libopen-pal.so.0(opal_progress+0xbc) [0x7f5ed99c28e0]
[joe0:16337] [ 7] /home/ftrahay/sources/openmpi/trunk/install/lib/openmpi/mca_pml_cm.so [0x7f5ed672447a]
[joe0:16337] [ 8] /home/ftrahay/sources/openmpi/trunk/install/lib/openmpi/mca_pml_cm.so [0x7f5ed67243b7]
[joe0:16337] [ 9] /home/ftrahay/sources/openmpi/trunk/install/lib/openmpi/mca_pml_cm.so [0x7f5ed67242e7]
[joe0:16337] [10] /home/ftrahay/sources/openmpi/trunk/install//lib/libmpi.so.0(MPI_Recv+0x2bc) [0x7f5ed9f35690]
[joe0:16337] [11] ./concurrent_ping(client+0xf5) [0x401185]
[joe0:16337] [12] /lib/libpthread.so.0 [0x7f5ed8ef4faa]
[joe0:16337] [13] /lib/libc.so.6(clone+0x6d) [0x7f5ed8c6929d]
[joe0:16337] *** End of error message ***
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mpiexec noticed that process rank 1 with PID 16337 on node joe0 exited on signal 6 (Aborted).
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ftrahay@joe0:$