Participants

• Sergio Andreozzi (CNAF)
• Laurence Field (CERN)
• Felix Ehm (CERN)
• Gerson Garlang (GridAustralia)
• Stephen Burke (RAL)
• Balazs Konya (Lund University)

Minutes (draft)

Action Revision

• talk to JP and verify sc5 proposed solution and their use case;
• check if WN environment work doc defined by GIN solves the problem (seems no because you need the info at scheduling time)
• check if sc6 is fine with JP
• check sc7/9/10/11 with JP

Gerson emailed to JP, expressed interested for ApplicationEnv entity

• about executable, they use a different approach but this can be useful
• they naming conventions (to ask for)
• ACL not yet published by TeraGrid but can be useful

According to enumerations these are ok:

• ParallelType: opennmp, mpi, javathread
• NetworkInfo type: gigabit ethernet, myrinet, infiniband

- Discussion on GLUE 1.3 issues/comments

1. CPU vs JobSlot: clarification why we moved away from FreeCPUs towards FreeJobSlots Action:

• Gerson to send use cases for multi-processor jobs
• Stephen to ask Cal Loomis for EGEE and people from GridIreland

• Balazs: what can we expect that need to be changed to consider multi-processor jobs?
  • discussion around Physical/Logical CPUs
  • MainMemory: total installed or divided by core/threads?
  • adding UsableMainMemory

• what about virtual machines and execution enviroment

• • Balazs for NorduGrid
  • Sergio for INFN Tier 1
  • to dedicate a whole telecon on this topic

• Laurence: some siteAdmin specify maxMemory usable by the job in the LRMS;

Action: collect use cases about different ways to configure per-job memory limits on batch systems

• Balazs
• Laurence to talk to Steve Traylen
• Sergio to talk to INFN T1 people

• Gerson to produce examples about physical/logical CPUs in real systems in AustralianGrid and how they are allocated to jobs

sc14: for parallel/sequential execution, probably we need two attributes:

Parallel: boolean (if false, only seq execution is supported) ParallelType: enum: mpi, opennmp, ...

accepted

after collection of use cases, make a final call to validate all the choices