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Improve GPU performance #15

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ar4 opened this issue Jul 25, 2018 · 0 comments
Closed

Improve GPU performance #15

ar4 opened this issue Jul 25, 2018 · 0 comments

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@ar4
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ar4 commented Jul 25, 2018

There are currently many opportunities for improving GPU performance. These include:

  • replacing atomicAdd in imaging_condition, such as with a parallel reduction sum
  • replacing atomicAdd in add_sources, such as by combining sources that are in the same cell
  • only performing the full PML calculation in the PML regions with the simpler plain wave equation in the interior
  • using shared memory for the finite difference calculations
  • adding the option to use cuDNN for the finite difference calculations
  • tuning the threadblock sizes
@ar4 ar4 closed this as completed in 89ae04d Jul 28, 2018
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