Charm++ parallel programming system

[Olivier Demengeon <olivier.demengeon AT inria.fr>]

Hello,

I hope i post this mail at the right place, i look for help on charm++ 
freezing.

I have a problem with charmrun freezing when gathering cpu tolopology.

I use namd (2.7b3) on IB with charm++. I have a cluster with 32 nodes. 
Each nodes have 8 cores.

When I use 11 nodes or less, asking 8 process per node everything work fine.
When i try to use more than 11 nodes, still asking 8 process per 
compter, charmrun start to sometime hang at gathering cpu topology. More 
I have node, more the chance of freeze increase.

Here the commande line I use for 11 nodes :
    /charmrun ++verbose +p88 ++nodelist nodes ++scalable-start ++batch 
2 ./namd2 <file>

Best regards,
Olivier Demengeon

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