Swap usage on parallel run

nikhilesh · April 29, 2009, 08:51

Hello

I am running the cases on parallel processors with metis domain decomposition.

While the run starts, process start eating up RAM. But before the RAM gets exhausted, process starts using system SWAP space. And soon, SWAP usage reaches 100%. Is there any specific command which is limiting the RAM usage in OpenFoam run.

I was facing this issue with 5 million grid size on 128 processor. Please guide why this is happening.

Thanks and regards
Sagar

mattijs · April 30, 2009, 04:42

You have posted on the bugs section. Please post generic questions on the relevant other forums, i.e. cfd/running unless you suspect there is a bug.

April 29, 2009, 08:51	Swap usage on parallel run	#1
nikhilesh New Member SSD Join Date: Apr 2009 Posts: 3 Rep Power: 18	Hello I am running the cases on parallel processors with metis domain decomposition. While the run starts, process start eating up RAM. But before the RAM gets exhausted, process starts using system SWAP space. And soon, SWAP usage reaches 100%. Is there any specific command which is limiting the RAM usage in OpenFoam run. I was facing this issue with 5 million grid size on 128 processor. Please guide why this is happening. Thanks and regards Sagar

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April 30, 2009, 04:42		#2
mattijs Senior Member Mattijs Janssens Join Date: Mar 2009 Posts: 1,419 Rep Power: 27	You have posted on the bugs section. Please post generic questions on the relevant other forums, i.e. cfd/running unless you suspect there is a bug.