Skip to content

Increase CUDA stack size for ParticleAdvection worklets.

Allison Vacanti requested to merge allisonvacanti/vtk-m:fix_particle_advection_cuda_stack into master

Sometimes the CUDA runtime would not allocate sufficient stack space for the particle advection code to run. This issue was exposed by !1737 (merged) -- for some reason, once those changes to unrelated filters/worklets are added to VTK, CUDA allocates less stack and the following tests would fail:

UnitTestLagrangianFilterCUDA
UnitTestLagrangianStructuresFilterCUDA
UnitTestStreamlineFilterCUDA
UnitTestStreamSurfaceFilterCUDA

These were fixed by increasing the stack size in the particle advection worklet Run(...) methods.

An RAII helper has been added that will restore the previous stack size in case an exception is thrown, and the KDTree code has been updated to use this helper when it adjusts the CUDA stack allocation.

Edited by Allison Vacanti

Merge request reports