Unable to run more than 32 processes.

Solution Verified - Updated -

Issue

Problem running more than 32 processes of a particular code. It works if we set it to a lower number. We are running on OpenMPI.

libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.
    This will severely limit memory registrations.
libibverbs: Warning: RLIMIT_MEMLOCK is 32768 bytes.
    This will severely limit memory registrations.
[compute-00-00.pcm:18084] 31 more processes have sent help message help-mpi-btl-base.txt / btl:no-nics
[compute-00-00.pcm:18084] Set MCA parameter "orte_base_help_aggregate" to 0 to see all help / error messages
[compute-00-03:16479] *** Process received signal ***
[compute-00-03:16479] Signal: Segmentation fault (11)
[compute-00-03:16479] Signal code: Address not mapped (1)
[compute-00-03:16479] Failing at address: 0x2aaab08e4280
[compute-00-03:16479] [ 0] /lib64/libpthread.so.0 [0x2ac2b4e50b10]
[compute-00-03:16479] [ 1] ../Code_src_July_29_2010_test/Para_FEBI_HOE_V1_test(totalmatrixluc_+0xf9a) [0x40d58a]
[compute-00-03:16479] [ 2] ../Code_src_July_29_2010_test/Para_FEBI_HOE_V1_test(febi_+0x3a1) [0x42e3d1]
[compute-00-03:16479] [ 3] ../Code_src_July_29_2010_test/Para_FEBI_HOE_V1_test(MAIN__+0x91) [0x404181]
[compute-00-03:16479] [ 4] ../Code_src_July_29_2010_test/Para_FEBI_HOE_V1_test(main+0xe) [0x42f21e]
[compute-00-03:16479] [ 5] /lib64/libc.so.6(__libc_start_main+0xf4) [0x2ac2b507b994]
[compute-00-03:16479] [ 6] ../Code_src_July_29_2010_test/Para_FEBI_HOE_V1_test [0x404039]
[compute-00-03:16479] *** End of error message ***

Environment

  • Red Hat Cluster Suite
  • OpenMPI.

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.

Current Customers and Partners

Log in for full access

Log In

New to Red Hat?

Learn more about Red Hat subscriptions

Using a Red Hat product through a public cloud?

How to access this content