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Segfault #10

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SylvanBrocard opened this issue Mar 18, 2022 · 2 comments
Open

Segfault #10

SylvanBrocard opened this issue Mar 18, 2022 · 2 comments
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The script benchmarks/strong_scaling/CPU+DPU.py crashes on 2048 DPU.
The script 2048_only doesn't.
There's probably a memory leak. Check the C arrays.
@SylvanBrocard SylvanBrocard self-assigned this Mar 18, 2022
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Identical problem with the higgs benchmark

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Probable cause: because the input array doesn't have padding, we're trying to copy data to DPUs that resides in inaccessible memory regions.
Either rewrite the input buffer with padding (let's avoid that), or change the logic of number of points per DPU to do some aliased transfer.

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