Teleconference 2024-09-25

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Attendees: Ken Moreland (ORNL), Mark Bolstad (SNL), Jeff Amstutz (NVIDIA), Nicole Marsaglia (LLNL)

OASIS Deliverables

  • Address requests for support, improvement, and new features by current and potential applications such as XGC and WarpX as well as other users of ParaView, VisIt, and Ascent.
    • Ascent team solved ray tracing bug in VTK-m 2.2
    • Another render issue popped up. Can be replicated at small scale. Nicole working on it.
  • Strengthen operation of VTK-m on Aurora.
    • There are still some failing tests.
    • They may be a problem with cell location, which might be an issue with Variant.
    • Having Intel look into the previously identified union/variant bug found.
  • Improve documentation with automatic generation and web deployment.
    • User's guide continues to improve.
  • Ensure proper building and running at OLCF, ALCF, and NERSC through Spack.
    • Ken verified that Slack builds work on Perlmutter and Frontier.
    • Silvio will establish contact for Ken of someone at ALCF tasked with compiling stuff with Spack. Request that they also compile VTK-m/Kokkos.

Viskores / HPSF

Have formalized the initial TSC. Ken is considering adding the following voting members to the TSC to represent their respective institutions and projects.

  • Silvio Rizzi, representing needs of ANL/ALCF
  • Nicole Marsaglia, representing Ascent and LLNL
  • Gunther Weber, representing topology, LBL, NERSC?

We have a plan to transition from VTK-m to Viskores. We are hoping for some funding from the HPSF to do this.

Roundtable

Ascent getting weird ray culling issue.

Mark talked about some previous metrics where a Catalyst with SPARC integration was copying data back and forth from device. Ken thinks some recent changes may help some of this.

ANARI working group going to have a virtual hackathon October 21-23. Good opportunity to work though some VTK-m/ANARI integration.