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-   -   Which vmware for multiple-cores (http://www.cfd-online.com/Forums/openfoam-installation/88922-vmware-multiple-cores.html)

mirko May 30, 2011 14:18

Which vmware for multiple-cores
 
Hi,

(This is a continuation of this thread on OF & vmware)

I am a bewildered by the choices on the vmware site.

I have an eight-core laptop running 64-bit windows 7.

I would like to install an OF friendly linux -- Debian most likely.

Can I run an OF simulation on multiple cores on vmWare player?

If not, is my other choice VmWare workstation?

Thank you,

Mirko

wyldckat June 4, 2011 07:51

Hi Mirko,

You could have still used the other thread ;)

OK, I use VMplayer 3.1.4 and it provides up to 8 cores (1,2,4 and 8), so at least in theory it should work!

Now, whether it's worth it or not, that's a whole other aspect, even in real machines! I suggest that you do some tests running with 1, 2, 4 and 8 cores to solve one of your cases, so you can get a feel if using 8 cores will be worth it or not. You can see this blog post of mine: Notes about running OpenFOAM in parallel - and sort through the ideas there to figure out what you can do to improve parallelization.

Usually I use 4 cores on the VM and it does seem to be worth it, at least when I have to do parallel builds of OpenFOAM source. As for running cases in parallel, I'm never able to get linear scale up, not even in a real machine :(

Best regards and good luck!
Bruno

mirko June 6, 2011 09:36

Quote:

Originally Posted by wyldckat (Post 310479)
Hi Mirko,

You could have still used the other thread ;)

I have mixed feelings about that suggestion, even though I see it done quite often. If I had done so, the thread subject line would not reflect the new question (like right now...) But, that could be just me :o

Going back to the original question (and returning to thread topic ;)), first thank you.

I will first do an experiment. Following OF's suggestion, I will try out OF on the VirtualBox. I will let you know how it goes.

Mirko

mirko June 27, 2011 15:36

Quote:

Originally Posted by mirko (Post 310690)
I have mixed feelings about that suggestion, even though I see it done quite often. If I had done so, the thread subject line would not reflect the new question (like right now...) But, that could be just me :o

Going back to the original question (and returning to thread topic ;)), first thank you.

I will first do an experiment. Following OF's suggestion, I will try out OF on the VirtualBox. I will let you know how it goes.

Mirko

I know that self-quoting is bad form, but as this may help others:

I installed VirtualBox and OF on my laptop a few weeks ago using instructions on the openfoam website. The only problem I encountered is file sharing between Ubuntu and the underlying Windows 7. I will take that up on the VirtualBox forum.

I have not yet tried running Ubuntu & OF on multiple cores.

But, what joy having OF on the laptop, and showing it off. It was a big hit at a recent trip :-)


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