Telcon: 2015 06 25

Participants

• Todd Gamblin (LLNL)
• Mike Collette (LLNL)
• David Shrader (LANL)

News:

• New Packages:
  • Thrift from Alfredo Gimenez (HBase bindings)
  • Saravan Pantham reimplemented lost FastMATH packages:
    • BLAS, Lapack, Parmetis, Metis, Sundials, CBLAS, Hypre, HDF5, Netcdf, SuperLU, Zoltan, Cgm, Moab, PETSc, Arpack, Parpack, Boxlib
• New feature: Enable/disable build output with v key
  • If you type spack install instead of spack install -v you can now just hit v to toggle output on/off
• Integration of multiple package repos is in progress -- almost done getting this into develop

Bugs

• Some mirror bugs submitted by Florent Pruvost
  • mirror really needs a robust nightly test.

Discussion

• Discussion with Tom Scogland about how to implement package flag propagation

  • thanks to the gentoo-ers on the mailing list
  • Gentoo USE flags seem pretty similar to what we discussed with Florent Pruvost
    • USE has a syntax for negation; spack does not have that currently (easy to add)
    • Spack's install model is a different from Gentoo so not clear if ? is needed like it is in Gentoo.
    • Spack would potentially support deeper propagation (e.g. propagate +mpi to all deps) if we do everything we discussed.
    • Gentoo and Spack currently require kind of complicated syntax for propagating deps
      • Ways to make easier discussed on the mailing list.

• Spack needs

• Discussion with Tom about adding an include directive

  • would include a source directory for some other build into the current build.
  • would list the include as a special type of dependency to allow for combinatorial versioning

• Complaints from Mike:

  • Mike still wants best-effort install
    • bottom-up DAG traversal needs to be implemented for this.
  • Need a separate test method so that tests can run on the package.

• Good news from Mike:

  • Mike has his code building on all supported architectures and configurationsm nightly:
    • CHAOS:
      • Intel 14, 15
      • Clang, GCC, PGI
    • BG/Q:
      • XLC, GCC, Clang
    • Cielo:
      • PGI (small issue where compiler adds libstdc++)
      • no cray compiler (used to support but not supported now)
    • dev, production, and previous production on (nearly) all architectures
      • no prev. production on BG/Q b/c Mike doesn't know where the previous python version patch file went
    • 70 libraries
    • Future:
      • Trinity: Maybe cray compiler