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Subject: Charm++ parallel programming system

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Re: [charm] running the ibverbs version of charm++


Chronological Thread 
  • From: Eric Bohm <ebohm AT illinois.edu>
  • To: Vlad Cojocaru <Vlad.Cojocaru AT eml-r.villa-bosch.de>
  • Cc: charm AT cs.uiuc.edu
  • Subject: Re: [charm] running the ibverbs version of charm++
  • Date: Mon, 04 Aug 2008 11:31:26 -0500
  • List-archive: <http://lists.cs.uiuc.edu/pipermail/charm>
  • List-id: CHARM parallel programming system <charm.cs.uiuc.edu>

The immediate cause for this is a corruption of data in the received message. Initnode messages are among the earliest sent, so if something has gone wrong with ibverbs qpair setup this would be a likely place for it to crop up.
The usual first point of failure with ibverbs is a problem pinning memory. Try adding -memory os -thread uJcontext to the link line and rebuild megatest.
Vlad Cojocaru wrote:
Dear all,

I successfully built charm++ (the cvs code) for net-linux-amd64 with ibverbs option. However when I try to run the megatest I get an error "Charmrun: Bad initnode data length. Aborting".

Does anybody have an idea why this happens ?

Thanks
Best
vlad






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