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2014 05 22

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Mark Santcroos edited this page May 25, 2014 · 4 revisions

  • Who: Mark, Matteo, Shantenu, Ole, AndreM, Antons

  • Agenda:

    • open TODOs
      • TODO AM: micro benchmarks for RP
      • DONE MS, OW: check module load / shell startup issues (context MPI CUs)
      • TODO AM: re-check 2048 ceiling
      • DONE OW: provide MPI prototype for stampede
      • TODO MS: base MPI agent on this
      • TODO AT: start on Cray agent, based on ATs scripts
      • TODO AT: expand scripts toward MPI jobs, and further to inter-node MPI jobs
      • TODO SJ: check pipeline example (MTMS)
      • TODO ALL: provide feedback
      • TODO OW: get quantitative EnMDTK requirements
      • TODO OW: bootstrap for agent on archer (and others)
      • DONE OW: email about port forwarding to Iain(?)
      • TODO OW: yes, makes sense, will do
      • TODO MS: proposal
    • MS-7 checkpoints:
      • May 8:
        • OW: simple MPI support for Stampede complete (prototype)
        • AT, OW: draft architecture for Cray agent
      • May 15:
        • MS: implementation proposal for MPI support beyond stampede
        • AM: MPI integration tests set up
        • OW: first prototype of non-MPI agent for cray
        • ALL: agree on implementation plan for Cray agent
      • May 22:
        • AM: MPI support integrated in Troy
    • status reports
    • discussion on Mark's data proposal
    • benchmarking plans
    • (?) what role plays scheduling on agent level?

  • Notes:

    • ibrun vs. mpiexec
    • mongodb on headnode of archer
    • OW: does preexec imply postexec?
      • TODO MS: yes, implement
    • OW passed Cray agent to AT
    • TODO OW: follow up on port forwarding
    • data feedback:
      • Discussion: At this stage unclear how much intelligence behind API. Ideally we construct it in such a way that that intelligence can be added later without large changes to the API.
      • Ole: Mirror as much as possible to compute part
      • Ole: Maybe use a real description to instantiate a container (MS: Hello PilotData ;-)
      • MS to further work on API and examples
    • Currently no explicit cu-cu dependencies, investigate how to integrate that with du-cu dependencies.
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