linux-kernel - Re: [RFC][PATCH] Cross Memory Attach

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20100915225324.60280a50@lilo>
Date:	Wed, 15 Sep 2010 22:53:24 +0930
From:	Christopher Yeoh <cyeoh@....ibm.com>
To:	Ingo Molnar <mingo@...e.hu>
Cc:	linux-kernel@...r.kernel.org,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>, linux-mm@...ck.org
Subject: Re: [RFC][PATCH] Cross Memory Attach

On Wed, 15 Sep 2010 10:16:53 +0200
Ingo Molnar <mingo@...e.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
-- 
cyeoh@...ibm.com
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/