Telecon: 2023 07 26

2023/7/12 Meeting

Updates

• WarpX + Nyx

  • Nicole: Found the source of long exec times!
    • Looked like it was initial ghost filter, but it was earlier, during Blueprint to VTK-m conversion
  • Data for fields is zero-copied into conduit with non-native stride, which we can't hand to VTK-m
  • Configure options related to type lists may not be a limit for VTK-m 2.0, we may be able to use ints.
  • Conversion is pulling of GPU and then back

• Expression Infra: Cyrus is undertaking a stocktake of JIT and non-JIT expressions

  • Ongoing: Refactoring and renaming to improve understanding
  • Convergence on a simpler execution infrastructure for Conduit leaves.

• Andres at ANL working over summer on bi-directional use cases

  • Trigger infra with sim callbacks and shell commands underway

• Collab with Univ of Oregon for interactive Ascent features.

  • Cyrus STILL needs to work on proposal

Discussion

• VTK-m 2.1RC is around the corner. Ready in under a week.
• AMR Wind + Crusher, memory issues were related to which modules and compilers were being used (w/o Ascent in the picture)