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Mathias Wagner edited this page Apr 23, 2015 · 1 revision

Minutes 2015-04-23

Participants

  • Steve, Alexei, Carleton, Nuno, Alex, Thorsten, Mathias

Issues discussed

MILC interface changes

tracked in #220

  • aim at next release
  • not pressing right now but requires changes to MILC or
  • defining a version 2 interface and keeping the old one for compatibility ?
  • QDP interface should server as example

MILC clover issues

tracked in #224

  • BiCG seems to converge but residual reported after inversion is bad (on the order of the estimate when missing clover term)
  • inversions run with reliable updates in full double precision, 25 iterations w/ 15 reliable updates
  • It is possible to pass clover coefficient and / or clover field
    • if clover field is NULL QUDA calculates it using the coefficient (and print that to its output)
  • different convention ?
  • Alexei will test inversion from qudainvert
  • we need to check BiCG with fermilab residual, probably completely untested
  • Wilson-Colver tests
  • Alex tested Clover with CG
  • Thorsten uses Clover from Chroma

Numa issues

tracked in #223

  • Don will look into this

CUDA memcheck with MPI

tracked in #222

  • seems like issues with getting pointer attributes within MPI
  • Nuno tested and will close that issue w/ comments on details

Pull requests

* postponed to next call

Other news

  • TML QCD interface from Mario Schroeck
    • probably still untested

Follow up in next call (May 7th)

  • clover issues
  • eigcg mixed precision with HISQ (Alexei reported and will create an issue to track this)
  • numa issue status
  • regression tests
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