RE: [EnergyPlus_Support] Runtime: Windows vs Linux

["Crawley, Drury" <Drury.Crawley@xxxxxxxxxx>]

Todd,
 
If you've got better compiler settings, scripts or other things that
would help E+ Linux users, please share.  We can explore on different
Linux systems.  If you're a Linux user and have special scripts or aids
to using E+ -- and willing to share, please let the team know.
 
Dru Crawley

________________________________

From: EnergyPlus_Support@xxxxxxxxxxxxxxx
[mailto:EnergyPlus_Support@xxxxxxxxxxxxxxx] On Behalf Of Taylor, Z Todd
Sent: Monday, April 28, 2008 12:53 PM
To: EnergyPlus_Support@xxxxxxxxxxxxxxx
Cc: Taylor, Z Todd
Subject: [EnergyPlus_Support] Runtime: Windows vs Linux



In testing the recent version 2.2, it seems the runtime
discrepancy between the Windows version and the Linux version
remains. On the same hardware, I see the Windows version
running about 20% faster than Linux.

Any idea if this is a result of compiler differences?
Different compiler options? Math libraries? Any hope
of rectifying the Linux speed penalty?

We do runs by the thousands on a Linux cluster, so a 20%
improvement would make a huge difference.

--Todd
-- 
Z. Todd Taylor
Manager, Residential R&D
Building Energy Codes Program
Pacific Northwest National Laboratory
Why is it so hard to remember the spelling of "mnemonic"?


 


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