Help with large CCSD(T) Calculation


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Gets Around
9:07:09 AM PST - Wed, Dec 10th 2014
Quote:Kmclaugh Aug 25th 6:24 am

  • snip*
(rank:32 hostname:trestles-4-13.local pid:26022):ARMCI DASSERT fail. openib.c:armci_server_register_region():964 cond:(memhdl->memhndl!=((void *)0))
Last System Error Message from Task 32:: Cannot allocate memory
32:Segmentation Violation error, status=: 11
32:Segmentation Violation error, status=: 11
32:Segmentation Violation error, status=: 11
  • snip*
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Any suggestions?


ARMCI-MPI (wiki.mpich.org/armci-mpi/index.php/NWChem) eliminates all ARMCI-related segfaults on InfiniBand. If it doesn't run with ARMCI-MPI, you need more nodes, which is to say, you've exceeded the actual limit of memory. On the other hand, ARMCI-OPENIB segfaults for any number of reasons, many of which are not actually running out of memory.

Jeff