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Published 20 hours ago • verified publisher icon BlueBrain

OpenMP GPU offload fails with NEURON's datareturn_py_gpu test when cell-permute=2

Open pramodk opened this issue 2 years ago • 0 comments

Describe the issue

This is based on internal slack discussion here. In summary, what we see is that the datareturn_py test fails with OpenMP GPU offload and cell permute = 2. Strangely, the issue doesn't appear if caliper profiling is enabled.

To Reproduce

Steps to reproduce the behavior:

  • build neuron+coreneuron+nmodl+openmp offload~caliper and run above mentioned test
  • See failing pipeline with above settings: https://bbpgitlab.epfl.ch/hpc/coreneuron/-/jobs/437053

Expected behavior OpenMP offload with cell-permute=2 should also pass the above mentioned test.

Logs See above mentioned log: https://bbpgitlab.epfl.ch/hpc/coreneuron/-/jobs/437053

System (please complete the following information)

  • OS: BB5 / RHEL 7.9
  • Compiler: NVHPC 22.3
  • Backend: GPU

Additional context

See slack discussion: https://bluebrainproject.slack.com/archives/C023T9MRC3B/p1668615314386289?thread_ts=1668551167.002749&cid=C023T9MRC3B

pramodk avatar Nov 20 '22 22:11 pramodk