Hello,

Question about eking out maximum machine performance:
Is there a performance advantage (or alternatively penalty) for running
twice as many FreeSurfer jobs (simultaneously) as physical CPUs on a
Linux machine with HyperThreading enabled CPUs?  That is, say you have
two physical cores with HyperThreading -- the Linux OS treats this as
four logical processors.  However, given that Freesurfer is very
'execute' intensive is there any advantage to be gained by running 4
rather than 2 FS jobs simultaneously?  Or will the total time per brain
with 4 simultaneous jobs be (on average) just twice as long?

thanks,
Mike H.


-- 
Michael Harms, Ph.D.
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Conte Center for the Neuroscience of Mental Disorders
Washington University School of Medicine
Department of Psychiatry, Box 8134
Renard Hospital, Room 6615           Tel: 314-747-6173
660 South Euclid Ave.                Fax: 314-747-2182
St. Louis, MO 63110                  Email: [EMAIL PROTECTED]
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