* RE: [Lse-tech] [PATCH] cpusets - big numa cpu and memory placemen t
@ 2004-10-16 8:01 Stan Hoeppner
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From: Stan Hoeppner @ 2004-10-16 8:01 UTC (permalink / raw)
To: 'Paul Jackson', ebiederm
Cc: mbligh, Simon.Derr, colpatch, pwil3058, frankeh, dipankar, akpm,
ckrm-tech, efocht, lse-tech, hch, steiner, jbarnes,
sylvain.jeaugey, djh, linux-kernel, ak, sivanich
> Kevin McMahon <n6965@sgi.com> pointed out to me a link to an
> interesting
> article on gang scheduling:
>
> http://www.linuxjournal.com/article.php?sid=7690
> Issue 127: Improving Application Performance on HPC Systems
> with Process Synchronization
> Posted on Monday, November 01, 2004 by Paul Terry Amar Shan
> Pentti Huttunen
>
> It's amazingly current - won't even be posted for another
> couple of weeks ;).
It appears they are using their Rapid Array ASICs/network for the time
synchronization. I wonder if it would be possible to implement this
solution on standard cluster hardware that doesn't have this custom network
with its inherent fine grained clock. NTP wouldn't be able to give
microsecond level time synchronization would it, considering its daemon
status...
This would definitely be a feather in the cap for someone who could code
this to work with SHV (standard high volume) hardware.
Stan Hoeppner
TheHardwareFreak
stan@hardwarefreak.com
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