From: Ingo Molnar <mingo@elte.hu>
To: Christopher Yeoh <cyeoh@au1.ibm.com>
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
linux-mm@kvack.org
Subject: Re: [RFC][PATCH] Cross Memory Attach
Date: Wed, 15 Sep 2010 10:16:53 +0200 [thread overview]
Message-ID: <20100915081653.GA16406@elte.hu> (raw)
In-Reply-To: <20100915080235.GA13152@elte.hu>
> > NPB:
> > ====
> > BT - 12% improvement
> > FT - 15% improvement
> > IS - 30% improvement
> > SP - 34% improvement
> >
> > IMB:
> > ===
> >
> > Ping Pong - ~30% improvement
> > Ping Ping - ~120% improvement
> > SendRecv - ~100% improvement
> > Exchange - ~150% improvement
> > Gather(v) - ~20% improvement
> > Scatter(v) - ~20% improvement
> > AlltoAll(v) - 30-50% improvement
btw., how does OpenMPI signal the target tasks that something happened
to their address space - is there some pipe/socket side-channel, or
perhaps purely based on flags in the modified memory areas, which are
polled?
Ingo
WARNING: multiple messages have this Message-ID (diff)
From: Ingo Molnar <mingo@elte.hu>
To: Christopher Yeoh <cyeoh@au1.ibm.com>
Cc: linux-kernel@vger.kernel.org,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Peter Zijlstra <a.p.zijlstra@chello.nl>,
linux-mm@kvack.org
Subject: Re: [RFC][PATCH] Cross Memory Attach
Date: Wed, 15 Sep 2010 10:16:53 +0200 [thread overview]
Message-ID: <20100915081653.GA16406@elte.hu> (raw)
In-Reply-To: <20100915080235.GA13152@elte.hu>
> > NPB:
> > ====
> > BT - 12% improvement
> > FT - 15% improvement
> > IS - 30% improvement
> > SP - 34% improvement
> >
> > IMB:
> > ===
> >
> > Ping Pong - ~30% improvement
> > Ping Ping - ~120% improvement
> > SendRecv - ~100% improvement
> > Exchange - ~150% improvement
> > Gather(v) - ~20% improvement
> > Scatter(v) - ~20% improvement
> > AlltoAll(v) - 30-50% improvement
btw., how does OpenMPI signal the target tasks that something happened
to their address space - is there some pipe/socket side-channel, or
perhaps purely based on flags in the modified memory areas, which are
polled?
Ingo
--
To unsubscribe, send a message with 'unsubscribe linux-mm' in
the body to majordomo@kvack.org. For more info on Linux MM,
see: http://www.linux-mm.org/ .
Don't email: <a href=mailto:"dont@kvack.org"> email@kvack.org </a>
next prev parent reply other threads:[~2010-09-15 8:17 UTC|newest]
Thread overview: 62+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-09-15 1:18 [RFC][PATCH] Cross Memory Attach Christopher Yeoh
2010-09-15 8:02 ` Ingo Molnar
2010-09-15 8:02 ` Ingo Molnar
2010-09-15 8:16 ` Ingo Molnar [this message]
2010-09-15 8:16 ` Ingo Molnar
2010-09-15 13:23 ` Christopher Yeoh
2010-09-15 13:23 ` Christopher Yeoh
2010-09-15 13:20 ` Christopher Yeoh
2010-09-15 13:20 ` Christopher Yeoh
2010-09-15 10:58 ` Avi Kivity
2010-09-15 10:58 ` Avi Kivity
2010-09-15 13:51 ` Ingo Molnar
2010-09-15 13:51 ` Ingo Molnar
2010-09-15 16:10 ` Avi Kivity
2010-09-15 16:10 ` Avi Kivity
2010-09-15 14:42 ` Christopher Yeoh
2010-09-15 14:42 ` Christopher Yeoh
2010-09-15 14:52 ` Linus Torvalds
2010-09-15 14:52 ` Linus Torvalds
2010-09-15 15:44 ` Robin Holt
2010-09-15 15:44 ` Robin Holt
2010-09-16 6:32 ` Brice Goglin
2010-09-16 6:32 ` Brice Goglin
2010-09-16 9:15 ` Brice Goglin
2010-09-16 9:15 ` Brice Goglin
2010-09-16 14:00 ` Christopher Yeoh
2010-09-16 14:00 ` Christopher Yeoh
2010-09-15 14:46 ` Bryan Donlan
2010-09-15 14:46 ` Bryan Donlan
2010-09-15 16:13 ` Avi Kivity
2010-09-15 16:13 ` Avi Kivity
2010-09-15 19:35 ` Eric W. Biederman
2010-09-15 19:35 ` Eric W. Biederman
2010-09-16 1:18 ` Christopher Yeoh
2010-09-16 1:18 ` Christopher Yeoh
2010-09-16 9:26 ` Avi Kivity
2010-09-16 9:26 ` Avi Kivity
2010-11-02 3:37 ` Christopher Yeoh
2010-11-02 3:37 ` Christopher Yeoh
2010-11-02 11:10 ` Avi Kivity
2010-11-02 11:10 ` Avi Kivity
2010-09-16 1:58 ` KOSAKI Motohiro
2010-09-16 1:58 ` KOSAKI Motohiro
2010-09-16 8:08 ` Ingo Molnar
2010-09-16 8:08 ` Ingo Molnar
2010-09-15 15:11 ` Linus Torvalds
2010-09-15 15:14 ` Linus Torvalds
2010-09-16 2:25 ` Christopher Yeoh
2010-09-16 16:27 ` Peter Zijlstra
2010-09-16 16:54 ` Linus Torvalds
2010-09-16 17:13 ` Peter Zijlstra
2010-09-16 17:34 ` Linus Torvalds
2010-09-16 17:47 ` Peter Zijlstra
2010-09-16 17:54 ` Linus Torvalds
2010-09-16 18:00 ` Linus Torvalds
2010-09-19 4:44 ` Yuhong Bao
2010-09-19 19:20 ` Yuhong Bao
2010-09-19 21:48 ` Russell King - ARM Linux
2010-09-19 22:47 ` Yuhong Bao
2010-09-19 4:55 ` Yuhong Bao
2010-09-15 16:07 ` Valdis.Kletnieks
2010-09-16 2:17 ` Christopher Yeoh
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20100915081653.GA16406@elte.hu \
--to=mingo@elte.hu \
--cc=a.p.zijlstra@chello.nl \
--cc=akpm@linux-foundation.org \
--cc=cyeoh@au1.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-mm@kvack.org \
--cc=torvalds@linux-foundation.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.