• Graphite_Phone_Call
• 2009_03_25

Graphite phone call from 2009_03_25

Attendees: David, Li, Tobias, Sebastian, Razya, Konrad, Christophe

Discussed topics:

• Reductions:
  • The loops are now in a form that the vectorizer can handle, but the edge execution count is not yet updated.
  • Some bugs still to be fixed.
• Automatic testing:
  • Sebastian set up spec2006 tests on a AMD internal machine.
  • Bootstrap, "make check" and polyhedron running on gcc16
• Data dependencies: Tobias commited a patch filling the access polyhedrons
  • Not yet enabled as there a some bootstrap bugs
  • All array accesses attach the same alias set
  • Reductions are not yet included
• Li's Summer of Code proposal: loop parallelization
  • Razya: code generation, parallelization of all loops: data dependencies return just true
  • Li: parallelization in graphite. His proposal will be sent to the gcc mailing list for discussion.
  • Konrad + Tobi: data dependencies
• A lot of participation in Graphite.
  • Several Summer of Code students.

    • Pranav

    • Li
  • David:

    Poly model is exciting accademic idea right now -> having it in GCC makes GCC a good tool for research -> More people get involved in GCC

• Timeline for 4.4 release