Thanks for the tip Jeff, I wish it was that simple. Unfortunately, this is the only version installed. When I added --prefix to the mpiexec command line, I still got a seg fault, but without the backtrace. Oh well, I'll keep trying (compiler upgrade etc).
[cl2n022:03057] *** Process received signal *** [cl2n022:03057] Signal: Segmentation fault (11) [cl2n022:03057] Signal code: Address not mapped (1) [cl2n022:03057] Failing at address: 0x10 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file util/nidmap.c at line 776 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file ess_tm_module.c at line 310 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file base/odls_base_default_fns.c at line 2342 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file util/nidmap.c at line 776 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file ess_tm_module.c at line 310 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file base/odls_base_default_fns.c at line 2342 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file util/nidmap.c at line 776 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file ess_tm_module.c at line 310 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file base/odls_base_default_fns.c at line 2342 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file util/nidmap.c at line 776 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file ess_tm_module.c at line 310 [cl2n022:03048] [[45689,0],7] ORTE_ERROR_LOG: Data unpack would read past end of buffer in file base/odls_base_default_fns.c at line 2342 [cl2n010:16470] *** Process received signal *** [cl2n010:16470] Signal: Segmentation fault (11) [cl2n010:16470] Signal code: Address not mapped (1) [cl2n010:16470] Failing at address: 0x10 -------------------------------------------------------------------------- mpiexec noticed that process rank 32 with PID 3057 on node cl2n022 exited on signal 11 (Segmentation fault). -------------------------------------------------------------------------- On Thu, May 31, 2012 at 2:54 PM, Jeff Squyres <jsquy...@cisco.com> wrote: > This type of error usually means that you are inadvertently mixing > versions of Open MPI (e.g., version A.B.C on one node and D.E.F on another > node). -- Edmund Sumbar University of Alberta +1 780 492 9360
