From: Christopher Yeoh <cyeoh@au1.ibm.com>
To: Ingo Molnar <mingo@elte.hu>
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 22:53:24 +0930 [thread overview]
Message-ID: <20100915225324.60280a50@lilo> (raw)
In-Reply-To: <20100915081653.GA16406@elte.hu>
On Wed, 15 Sep 2010 10:16:53 +0200
Ingo Molnar <mingo@elte.hu> wrote:
>
> 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?
The shared memory btl signals through shared memory, though when
threading is enabled (I think its mostly used with threading support
disabled) in OpenMPI there is also signalling done through a pipe.
Regards,
Chris
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next prev parent reply other threads:[~2010-09-15 13:23 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20100915104855.41de3ebf@lilo>
2010-09-15 8:02 ` [RFC][PATCH] Cross Memory Attach Ingo Molnar
2010-09-15 8:16 ` Ingo Molnar
2010-09-15 13:23 ` Christopher Yeoh [this message]
2010-09-15 13:20 ` Christopher Yeoh
2010-09-15 10:58 ` Avi Kivity
2010-09-15 13:51 ` Ingo Molnar
2010-09-15 16:10 ` Avi Kivity
2010-09-15 14:42 ` Christopher Yeoh
2010-09-15 14:52 ` Linus Torvalds
2010-09-15 15:44 ` Robin Holt
2010-09-16 6:32 ` Brice Goglin
2010-09-16 9:15 ` Brice Goglin
2010-09-16 14:00 ` Christopher Yeoh
2010-09-15 14:46 ` Bryan Donlan
2010-09-15 16:13 ` Avi Kivity
2010-09-15 19:35 ` Eric W. Biederman
2010-09-16 1:18 ` Christopher Yeoh
2010-09-16 9:26 ` Avi Kivity
2010-11-02 3:37 ` Christopher Yeoh
2010-11-02 11:10 ` Avi Kivity
2010-09-16 1:58 ` KOSAKI Motohiro
2010-09-16 8:08 ` Ingo Molnar
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