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Subject: Charm++ parallel programming system

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[charm] charmrun for >1024 processes


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  • From: Russ.Brown AT Sun.COM
  • To: charm AT cs.uiuc.edu
  • Subject: [charm] charmrun for >1024 processes
  • Date: Mon, 01 Mar 2010 11:18:37 -0800
  • List-archive: <http://lists.cs.uiuc.edu/pipermail/charm>
  • List-id: CHARM parallel programming system <charm.cs.uiuc.edu>

Hi,

I'm using an "ibverbs" version of charmrun to initiate parallel execution of NAMD. Charmrun aborts for more than 1024 processes. I have set ++batch 8. When I set ++batch 16, charmrun aborts for any number of processes. I have tried ++maxrsh 16 and ++maxrsh 32, as well as ++timeout 2, with no effect.

Any ideas how I can initiate parallel execution for more than 1024 processes?

Thanks,

Russ Brown





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