Hello, I am getting this error any time the number of processes requested per machine is greater than the number of cpus. I suspect it is something on the configuration of mx / ompi that I am missing since another machine I have without mx installed runs ompi correctly with oversubscription.
Thanks for any help. -- Valmor ->mpirun -np 3 --machinefile mymachines-1 a.out [x1:23624] mca_btl_mx_init: mx_open_endpoint() failed with status=20 [x1:23624] *** Process received signal *** [x1:23624] Signal: Segmentation fault (11) [x1:23624] Signal code: Address not mapped (1) [x1:23624] Failing at address: 0x20 [x1:23624] [ 0] [0xb7f7f440] [x1:23624] [ 1] /opt/openmpi-1.2/lib/openmpi/mca_btl_mx.so(mca_btl_mx_finalize+0x25) [0xb7aca825] [x1:23624] [ 2] /opt/openmpi-1.2/lib/openmpi/mca_btl_mx.so(mca_btl_mx_component_init+0x6 f8) [0xb7acc658] [x1:23624] [ 3] /opt/ompi/lib/libmpi.so.0(mca_btl_base_select+0x1a0) [0xb7f41900] [x1:23624] [ 4] /opt/openmpi-1.2/lib/openmpi/mca_bml_r2.so(mca_bml_r2_component_init+0x2 6) [0xb7ad1006] [x1:23624] [ 5] /opt/ompi/lib/libmpi.so.0(mca_bml_base_init+0x78) [0xb7f41198] [x1:23624] [ 6] /opt/openmpi-1.2/lib/openmpi/mca_pml_ob1.so(mca_pml_ob1_component_init+0 x7d) [0xb7af866d] [x1:23624] [ 7] /opt/ompi/lib/libmpi.so.0(mca_pml_base_select+0x176) [0xb7f49b56] [x1:23624] [ 8] /opt/ompi/lib/libmpi.so.0(ompi_mpi_init+0x4cf) [0xb7f0fe2f] [x1:23624] [ 9] /opt/ompi/lib/libmpi.so.0(MPI_Init+0xab) [0xb7f3204b] [x1:23624] [10] a.out(_ZN3MPI4InitERiRPPc+0x18) [0x8052cbe] [x1:23624] [11] a.out(main+0x21) [0x804f4a7] [x1:23624] [12] /lib/libc.so.6(__libc_start_main+0xdc) [0xb7be9824] content of mymachines-1 file x1 max_slots=4
