cwpearson / stencil

A prototype MPI/CUDA stencil communication library
Boost Software License 1.0
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measure-buf-exchange can't run with `--smpiargs="-gpu"` #16

Open cwpearson opened 4 years ago

cwpearson commented 4 years ago

Running src/measure-buf-exchange with --smpiargs="-gpu" yields CUDA Hook Library: Failed to find symbol mem_find_dreg_entries, python: undefined symbol: __PAMI_Invalidate_region

The code works for a while, and then silently exits at a later CUDA Runtime call.

Removing the --smpiargs="-gpu" option causes this to work