Teleconference 2019-04-17

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Attendees: Ken Moreland (SNL), Nick Davis (SNL), Rob Maynard (Kitware), Abhishek Yenpure (UO), Hank Childs (UO), Matt Larsen (LLNL), Dave Pugmire (ORNL), Ollie Lo (LANL), David Rogers (LANL)

ECP Updates

ECP deliverable updates


  • [MS-19/08] Point Movement 2
    • Done except user's guide.


  • [MS-19/09] Path Geometry
    • Ramping up
    • Some of the functionality is already there
    • Probably need to add a poly-line cell type
  • [MS-20/01] Lightweight Cell Library
    • Been doing some changes on the interface to the VTK-m cell library.
    • Most of the underlying library is ready.
    • Almost ready.
    • Still need to implement VTK-m data around it.
  • [MS-20/02] Specialized Data Models
    • Dave P and Sujin talked about how to roll in some generalized extruded meshes.
  • [MS-20/03] Feature-Sensitive Surface Norm
    • Bumped up CUDA version so that we have our required CUDA 9
    • Can get back to actual algorithm
  • [MS-20/04] VTK-m Release 3
    • On track
    • Probably June would be a good time for a release.
  • [MS-20/05] Cell Metrics
    • Brent and Daniel are working on an MR.
    • Initial MR will only be about 1/3 of the metrics.
    • Will advance after that.
  • [MS-20/06] Contouring
    • Will model the problem after triangulation. Have different contouring for each cell type.
    • Ollie looking into VTK implementation and flying edge paper.
  • [MS-20/07] Advanced Flow Algorithms
    • Merged in fix to do double precision correctly.
    • Still deciding what we want to do.
      • Planning on talking during DOECGF
      • Hybrid parallel seems like a good way to go
    • Organizing work with ALPINE and others

Rountable notes

Grouping copyright to license file. Can we pull the trigger?

  • Lets do it

No more default device adapter!

We should try to collect some ECP data so that as we do reporting we can quickly generate relevant images. It would be great if we could also share across ALPINE and other vis projects.

  • Terry Turton has collected some stuff from LANL. Not sure if can be sent out.
    • She might have a list of distributed data in different places


Jim has been asking for examples of running VTK-m at scale. We have done this, although we are not really using ghost cells.

DOECGF talk: what I did with VTK-m at scale:

  • Dave Pugmire
  • Matt Larsen
  • Rob Maynard
  • Hank will be the organizers

No meeting next week.