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Input file with 1.e8 (many!) beam particles and 1536^2 grid points fails on 4 V100s #716

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MaxThevenet opened this issue Mar 16, 2022 · 0 comments
Open

Input file with 1.e8 (many!) beam particles and 1536^2 grid points fails on 4 V100s #716

MaxThevenet opened this issue Mar 16, 2022 · 0 comments
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MaxThevenet commented Mar 16, 2022 •
edited

Running with many beam particles makes the run fail, in particular:

  • in single precision, the code runs but all output are NaNs.
  • in DP, the code crashes with the message below.

@hightower8083 reported the issue. Compiling with -DAMReX_LINEAR_SOLVERS=ON and running with hipace.use_amrex_mlmg = 1 fixes the issue, so this should be related to #699. Dividing the number of beam particles by 100 fixes the issue.

A reproducer with about 1536 1536 1024 cells and 100000000 beam particles will come later.
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