[nek5000] Large local problem sizes fail to compile

Nek5000 / nekRS

our next generation fast and scalable CFD code

https://nek5000.mcs.anl.gov/

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[nek5000] Large local problem sizes fail to compile #383

Closed stgeke closed 3 years ago

stgeke commented 3 years ago

Nek5000 fails to compile large local problem sizes (e.g. >8M GLL points per MPI rank). We're hitting a static memory limit although -mcmodel=medium is used.

Workaround: Use -mcmodel=large if available.

stgeke commented 3 years ago

Fixed in https://github.com/Nek5000/nekRS/commit/7a55f459cd9b42129d0d3312dac8dd614cdb50d0