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FVSubgridZ failure on dace:gpu backend #410

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FlorianDeconinck opened this issue Dec 20, 2022 · 0 comments
Open

FVSubgridZ failure on dace:gpu backend #410

FlorianDeconinck opened this issue Dec 20, 2022 · 0 comments
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bug Something isn't working

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@FlorianDeconinck
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FlorianDeconinck commented Dec 20, 2022 •
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FVSubgridZ leads to a CUDA 701 when ran under dace:gpu. The underlying cause is an overflow of the registers leading to cuda launch failure.

Temporary workaround as introduced in PR #400 is a skip_test that cancelled our translate test for this particular backend.

Avenue for solutions:

  • break code to have a smaller number of tracers updated
  • change the block/thread configuration for the stencil
  • skip field_to_scalar OIR pass (in combination with the above)
  • deeper fix of the backend in GT4Py (tbd)

WARNING: this probably also fail when doing orchestration, it remains untested
@FlorianDeconinck FlorianDeconinck added the bug Something isn't working label Dec 20, 2022
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