calculating parallel on two machines

-t!m- · December 11, 2009, 09:03

Hi there,

maybe becaus of i am very new at open Foam i got a big problem.
i try to calculate on two different machines and i dont know how to synchronizes my 8 cores.
i think at this moment i am on the wrong way and i hope that someone could give me an interresting impulse

misakagan · December 11, 2009, 09:07

have you added the -parallel argument to the execution command?

For example a very simple execution command on 2 processors with pisoFoam looks like this:

mpirun -n 2 pisoFoam -parallel

For 2 different machines you should add a machine file as described in the user guide.

-t!m- · December 11, 2009, 09:09

yep i startet a process succesfull with 4 cores on one machine... i think there can only be a very little aspect i have overlooked ....
Maybe in my decomposepardic file....

December 11, 2009, 09:03	calculating parallel on two machines	#1
-t!m- New Member Tim Join Date: Dec 2009 Posts: 2 Rep Power: 0	Hi there, maybe becaus of i am very new at open Foam i got a big problem. i try to calculate on two different machines and i dont know how to synchronizes my 8 cores. i think at this moment i am on the wrong way and i hope that someone could give me an interresting impulse

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December 11, 2009, 09:07		#2
misakagan New Member Join Date: Nov 2009 Posts: 17 Rep Power: 16	have you added the -parallel argument to the execution command? For example a very simple execution command on 2 processors with pisoFoam looks like this: mpirun -n 2 pisoFoam -parallel For 2 different machines you should add a machine file as described in the user guide.

December 11, 2009, 09:09	re	#3
-t!m- New Member Tim Join Date: Dec 2009 Posts: 2 Rep Power: 0	yep i startet a process succesfull with 4 cores on one machine... i think there can only be a very little aspect i have overlooked .... Maybe in my decomposepardic file....