Hi, Currently I'm having trouble to scale an MPI job beyond a certain limit. So I'm running an MPI hello example to test beyond 1024 but it failed with the following error with 2048 processes. It worked fine with 1024 processes. I have enough file descriptor limit (65536) defined for each process.
I appreciate if anyone gives me any suggestions. I'm running (Open MPI) 1.4.3 [x-01-06-a:25989] [[37568,0],69] ORTE_ERROR_LOG: Data unpack had inadequate space in file base/odls_base_default_fns.c at line 335 [x-01-06-b:09532] [[37568,0],74] ORTE_ERROR_LOG: Data unpack had inadequate space in file base/odls_base_default_fns.c at line 335 -------------------------------------------------------------------------- mpirun noticed that the job aborted, but has no info as to the process that caused that situation. -------------------------------------------------------------------------- [x-03-20-b:23316] *** Process received signal *** [x-03-20-b:23316] Signal: Segmentation fault (11) [x-03-20-b:23316] Signal code: Address not mapped (1) [x-03-20-b:23316] Failing at address: 0x6c [x-03-20-b:23316] [ 0] /lib64/libpthread.so.0 [0x310860ee90] [x-03-20-b:23316] [ 1] /usr/local/MPI/openmpi-1.4.3/lib/libopen-rte.so.0(orte_plm_base_app_report_launch+0x230) [0x7f0dbe0c5010] [x-03-20-b:23316] [ 2] /usr/local/MPI/openmpi-1.4.3/lib/libopen-pal.so.0 [0x7f0dbde5c8f8] [x-03-20-b:23316] [ 3] mpirun [0x403bbe] [x-03-20-b:23316] [ 4] /usr/local/MPI/openmpi-1.4.3/lib/libopen-pal.so.0 [0x7f0dbde5c8f8] [x-03-20-b:23316] [ 5] /usr/local/MPI/openmpi-1.4.3/lib/libopen-pal.so.0(opal_progress+0x99) [0x7f0dbde50e49] [x-03-20-b:23316] [ 6] /usr/local/MPI/openmpi-1.4.3/lib/libopen-rte.so.0(orte_trigger_event+0x42) [0x7f0dbe0a7ca2] [x-03-20-b:23316] [ 7] /usr/local/MPI/openmpi-1.4.3/lib/libopen-rte.so.0(orte_plm_base_app_report_launch+0x22d) [0x7f0dbe0c500d] [x-03-20-b:23316] [ 8] /usr/local/MPI/openmpi-1.4.3/lib/libopen-pal.so.0 [0x7f0dbde5c8f8] [x-03-20-b:23316] [ 9] /usr/local/MPI/openmpi-1.4.3/lib/libopen-pal.so.0(opal_progress+0x99) [0x7f0dbde50e49] [x-03-20-b:23316] [10] /usr/local/MPI/openmpi-1.4.3/lib/libopen-rte.so.0(orte_plm_base_launch_apps+0x23d) [0x7f0dbe0c5ddd] [x-03-20-b:23316] [11] /usr/local/MPI/openmpi-1.4.3/lib/openmpi/mca_plm_rsh.so [0x7f0dbd41d679] [x-03-20-b:23316] [12] mpirun [0x40373f] [x-03-20-b:23316] [13] mpirun [0x402a1c] [x-03-20-b:23316] [14] /lib64/libc.so.6(__libc_start_main+0xfd) [0x3107e1ea2d] [x-03-20-b:23316] [15] mpirun [0x402939] [x-03-20-b:23316] *** End of error message *** [x-01-06-a:25989] [[37568,0],69]-[[37568,0],0] mca_oob_tcp_msg_recv: readv failed: Connection reset by peer (104) [x-01-06-b:09532] [[37568,0],74]-[[37568,0],0] mca_oob_tcp_msg_recv: readv failed: Connection reset by peer (104) ./sge_jsb.sh: line 9: 23316 Segmentation fault (core dumped) mpirun -np $NSLOTS ./hello_openmpi.exe
