Hi, I got a similar error for my system: ... [n020110:27321] *** Process received signal *** [n020110:27321] Signal: Segmentation fault (11) [n020110:27321] Signal code: (128) [n020110:27321] Failing at address: (nil) [n020110:27321] [ 0] /lib64/libpthread.so.0 [0x38bac0eb70] [n020110:27321] [ 1] /opt/bwgrid/mpi/openmpi/1.4.3-intel-12.0/lib/libmpi.so.0 [0x2b7964e5a44a] [n020110:27321] [ 2] /opt/bwgrid/mpi/openmpi/1.4.3-intel-12.0/lib/libmpi.so.0 [0x2b7964e58acd] ...
This error was reproducible at the beginning of each simulation and only occured when I used more than 16 cores for my simulation. Everything works fine for 16 or less cores. The GROMACS log file doesn't give any error messages at all (it just ends). The problem seems to be the number of PME cores in my case. When dedicating half of the total cores to PME calculation, everything works fine again (up to 256 total cores tested). -- View this message in context: http://gromacs.5086.n6.nabble.com/Segmentation-fault-mdrun-mpi-tp5001601p5002923.html Sent from the GROMACS Users Forum mailing list archive at Nabble.com. -- gmx-users mailing list gmx-users@gromacs.org http://lists.gromacs.org/mailman/listinfo/gmx-users * Please search the archive at http://www.gromacs.org/Support/Mailing_Lists/Search before posting! * Please don't post (un)subscribe requests to the list. Use the www interface or send it to gmx-users-requ...@gromacs.org. * Can't post? Read http://www.gromacs.org/Support/Mailing_Lists
