Parallel Haskell HackSprint

Organisation

Dates : 12-14 December 2010

Location : Heriot-Watt

Participants

So far: Hans-Wolfgang Loidl (Host), Mischa Dieterle, Thomas Horstmeyer, Jost Berthold, Henrique Ferreiro, David Castro Pérez

To be confirmed: Vladimir Janjic, Kevin Hammond, Chris Brown, Mustafa Aswad, Malak Aljabri, Philip W Trinder, Patrick Maier, Robert Stewart

Agenda

• Reports on recent software releases

• Updates on work at each of the sites

• Tests & benchmarks

  • Repo
  • System-tests
  • Benchmarks
  • Larger applications

• Interfaces to on-going projects (SCIEnce, HPC-GAP)

  • CASH
  • SC skeletons
  • fault-tolerance

• Packaging

• Roadmap for future development

  • Following ghc HEAD: status report, coordination and planning

  • Status of/ Plans for existing branches

    • migration,
    • tracing,
    • data locality
    • ...

  • Planned extensions and applications

    • Integration with GHC/SMP
    • Integrating migration
    • Globus interface
    • pre-SCSCP GAP interface
    • Micro-kernel/substrate approach to the RTS

Eventlog

Sunday sessions:

• Tracing:

  • overview (TH,MD)
  • integration into GUM build (MKA,MD)

• Test programs: systemtests (HWL)

• MultiCore Challenge application in GpH and Eden (TH,MSA)

Tuesday session:

• Reports and updates on activities

• Hacking Activities

  • CAF bug fixed in eden-6.12 (MD,TH)

  • problem in ghc-HEAD (JB)

  • systemtests on GUM build (HWL)

    • systemtests for GPH
    • Tests Eden for Eden

  • changes in packing code (HWL,JB)

• Eden usage for Symb Comp (CB,JB)

  • CASH
  • SC skeletons

• Packaging

  • configure script for CASH; TODO for edenmodules

• Integration

  • migration, (VJ)
  • tracing, (MKA)
  • data locality (MKA)

• Strategic issues

  • Plans on ghc-HEAD integration

    • Milestones: ghc-6.12-eden-gum

    • Longer term:

      • scans of ghc-HEAD changes

    • Marburg Wiki for main tech info exchange

    • Skype calls (1-to-1)

    • regular annual meetings (Challenge)

  • Usage in projects

    • SGP (CA interfacing)

      • minor release soon, with separate Eden modules
      • next year major release, using Eden package

    • SGPII (fault tolerance, GdH)

      • look at Edi.hs

  • Priorities for new developments

• Benchmarks:

  • nofib/parallel
  • nofib/parallel-eden
  • Strategies examples: push to nofib/parallel
  • Other new programs (karatsuba): put to parfib/

Docu on latest problems running ghc-HEAD

Marburg Wiki for tech info exchange, up-to-date info with ghc-HEAD and the like