[mvapich-discuss] (no subject)

Troy Telford ttelford at linuxnetworx.com
Thu Mar 23 10:52:06 EST 2006


On Thu, 23 Mar 2006 02:13:27 -0700, Roland Fehrenbacher  
<Roland.Fehrenbacher at transtec.de> wrote:

>     >> When running HPL, hpl.dat can contain multiple problem sizes.
>     >> xhpl * reads the config file, and runs one problem size (until
>     >> it completes the problem) * After the previous problem is
>     >> finished, hpl will then start execution on the next problem
>     >> size.
>
>     Sayantan> Thanks for the explanation. I understand what you are
>     Sayantan> saying.
>
> I'm facing the same problem here with xhpl and mvapich 0.9.7. The
> strange thing is that this problem didn't happen with versions at
> least up to 0.9.5 (haven't tested 0.9.6). Is the mechanism mentioned
> below a performance optimization that entered the code after 0.9.5? I
> just checked, and I had set -DLAZY_MEM_UNREGISTER in my 0.9.5 version
> already.

I've actually been able to replicate it with 0.9.5.  (And even 0.9.4)
-- 
Troy Telford


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