mpi on vmware-no load balancing between cores

Helium-3 Man · February 25, 2015, 09:05

Hi all-

First post for me.

I am trying to decide whether to run OpenFOAM on a virtual machine or to use Ubuntu and the resident operating system.

I've run a few examples using mpirun on VMWare with 4 processors selected. It appears that the load is not distributed among the processor when viewed on the Windows task manager.

Any insight? Is this a problem outside of VMWare as well?

Thanks a lot.

kmooney · February 26, 2015, 18:46

A VM is usually adequate for development tasks and small scale testing. If speed is a factor at all then go for the full linux or dual partition approach.

February 25, 2015, 09:05	mpi on vmware-no load balancing between cores	#1
Helium-3 Man New Member David Watt Join Date: Feb 2015 Posts: 4 Rep Power: 11	Hi all- First post for me. I am trying to decide whether to run OpenFOAM on a virtual machine or to use Ubuntu and the resident operating system. I've run a few examples using mpirun on VMWare with 4 processors selected. It appears that the load is not distributed among the processor when viewed on the Windows task manager. Any insight? Is this a problem outside of VMWare as well? Thanks a lot.

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February 26, 2015, 18:46		#2
kmooney Senior Member Kyle Mooney Join Date: Jul 2009 Location: San Francisco, CA USA Posts: 323 Rep Power: 17	A VM is usually adequate for development tasks and small scale testing. If speed is a factor at all then go for the full linux or dual partition approach.