[GE users] h_vmem and MVAPICH tight integration

Reuti reuti at staff.uni-marburg.de
Wed Aug 16 12:15:06 BST 2006


Am 16.08.2006 um 12:52 schrieb Olli-Pekka Lehto:

> Hello,
> We're running SGE v.6u8 and have configured it to use tight  
> integration with MVAPICH (0.9.7-2). To enforce memory limits we are  
> using the h_vmem -resource, however with MVAPICH the setting the  
> limit with '-l h_vmem' causes processes to be killed even though  
> only a fraction of the reserved memory is used. We have 4-core  
> Opteron nodes with 8GB RAM and Mellanox InfiniHost III Ex HCA:s. Is  
> there a way to work around this?

are the processes killed by SGE (then you could check the messages  
files on the qmaster and nodes about an entry), or dying on their own?

For some programs it is necessary to limit also the stack, if you use  
h_vmem. Sometimes a small value of 32M is already working.

-- Reuti

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