CAELinux vs Ubuntu Virtual Machines

okstatecheme · November 25, 2014, 16:54

I ran two identical interFoam cases on virtual machines. One was on CAELinux 2013 (OpenFOAM 2.1) and the other was on Ubuntu 12.04 LTS (OpenFOAM 2.3). The CAELinux case solved about 15% faster than the Ubuntu. Both virtual machines were set up with the same memory, processor capacity , etc... settings.

Anybody have any idea why there is efficiency gained on CAELinux?

Bernhard · November 27, 2014, 07:50

Where these results reproducable from day-to-day?

JR22 · November 27, 2014, 09:58

Interesting. Could it be the difference between OF21 to OF23, or the fact that OF was compiled specifically for the CAElinux OS (some Ubuntu I am guessing)

okstatecheme · November 27, 2014, 14:10

I have installed OF 2.3 on CAELinux. I'll run it and see how it compares to 2.3 on Ubuntu.

November 25, 2014, 16:54	CAELinux vs Ubuntu Virtual Machines	#1
okstatecheme New Member Join Date: Jul 2013 Posts: 9 Rep Power: 12	I ran two identical interFoam cases on virtual machines. One was on CAELinux 2013 (OpenFOAM 2.1) and the other was on Ubuntu 12.04 LTS (OpenFOAM 2.3). The CAELinux case solved about 15% faster than the Ubuntu. Both virtual machines were set up with the same memory, processor capacity , etc... settings. Anybody have any idea why there is efficiency gained on CAELinux?

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November 27, 2014, 07:50		#2
Bernhard Senior Member Bernhard Join Date: Sep 2009 Location: Delft Posts: 790 Rep Power: 21	Where these results reproducable from day-to-day?

November 27, 2014, 09:58		#3
JR22 Senior Member Jose Rey Join Date: Oct 2012 Posts: 134 Rep Power: 17	Interesting. Could it be the difference between OF21 to OF23, or the fact that OF was compiled specifically for the CAElinux OS (some Ubuntu I am guessing)

November 27, 2014, 14:10		#4
okstatecheme New Member Join Date: Jul 2013 Posts: 9 Rep Power: 12	I have installed OF 2.3 on CAELinux. I'll run it and see how it compares to 2.3 on Ubuntu.