Hi, I noticed that I can get the openib transport to work successfully under version 1.4.3 when configured with: --with-openib --enable-openib-ibcm
When I configure 1.5 or 1.5.1 I used: --with-openib (noting the absence of the ibmc flag) However, when I actually try to use openib on a basic MPI program I get a segfault such as the one copied below. Our IB hardware is: InfiniBand: Mellanox Technologies MT26428 [ConnectX VPI PCIe 2.0 5GT/s - IB QDR / 10GigE] (rev b0) dfiala@compute-0-2 ~]$ mpirun -mca btl openib,self ./mpitest/mpitest [compute-0-2:07582] *** Process received signal *** [compute-0-2:07582] Signal: Segmentation fault (11) [compute-0-2:07582] Signal code: Address not mapped (1) [compute-0-2:07582] Failing at address: 0x2 [compute-0-2:07582] [ 0] /lib64/libpthread.so.0 [0x3ed2e0eb10] [compute-0-2:07582] [ 1] /usr/lib64/libmlx4-rdmav2.so [0x2aaaab0de5d1] [compute-0-2:07582] [ 2] /home/dfiala/openmpi/install-1.5.1/lib/openmpi/mca_btl_openib.so [0x2b1637155f15] [compute-0-2:07582] [ 3] /home/dfiala/openmpi/install-1.5.1/lib/openmpi/mca_bml_r2.so [0x2b163691b4b2] [compute-0-2:07582] [ 4] /home/dfiala/openmpi/install-1.5.1/lib/openmpi/mca_pml_ob1.so [0x2b1636d3844f] [compute-0-2:07582] [ 5] /home/dfiala/openmpi/install/lib/libmpi.so.1 [0x2b16347afe37] [compute-0-2:07582] [ 6] /home/dfiala/openmpi/install/lib/libmpi.so.1(MPI_Init+0xf0) [0x2b16347c46d0] [compute-0-2:07582] [ 7] ./mpitest/mpitest(main+0x2b) [0x4008d3] [compute-0-2:07582] [ 8] /lib64/libc.so.6(__libc_start_main+0xf4) [0x3ed261d994] [compute-0-2:07582] [ 9] ./mpitest/mpitest [0x4007f9] [compute-0-2:07582] *** End of error message *** -------------------------------------------------------------------------- mpirun noticed that process rank 0 with PID 7582 on node compute-0-2.local exited on signal 11 (Segmentation fault). -------------------------------------------------------------------------- Any ideas? Thanks for your help, David Fiala North Carolina State University
