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From: Wilfried Weissmann <Wilfried.Weissmann@gmx.at>
To: Torrey Hoffman <torrey.hoffman@myrio.com>
Cc: "'jesse@cats-chateau.net'" <jesse@cats-chateau.net>,
	Kip Macy <kmacy@netapp.com>, Paul Jakma <paul@clubi.ie>,
	Helge Hafting <helgehaf@idb.hist.no>,
	"C. Slater" <cslater@wcnet.org>,
	linux-kernel@vger.kernel.org
Subject: Re: Switching Kernels without Rebooting?
Date: Thu, 12 Jul 2001 22:47:00 +0200	[thread overview]
Message-ID: <3B4E0CC4.1926053C@gmx.at> (raw)
In-Reply-To: <D52B19A7284D32459CF20D579C4B0C0211C92A@mail0.myrio.com>

Torrey Hoffman wrote:
> 
> Jesse Pollard wrote:
> 
> [why switching kernels is very hard, and...]
> 
> > Before you even try switching kernels, first implement a process
> > checkpoint/restart. The process must be resumed after a boot
> > using the same
> > kernel, with all I/O resumed. Now get it accepted into the kernel.
> 
> Hear, hear!  That would be a useful feature, maybe not network servers,
> but for pure number crunching apps it would save people having to write
> all the state saving and recovery that is needed now for long term
> computations.

There is a checkpointing and resumeing lib at
ftp://gutemine.geo.uni-koeln.de/pub/chkpt/
I am not sure if it has been ported to linux yet, but it might be worth
a look.

> 
> For bonus points, make it work for clusters to synchronously save and
> restore state for the apps running on all the nodes at once...
> 
> Torrey

bye,
Wilfried

  parent reply	other threads:[~2001-07-12 20:45 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-07-12  1:03 Switching Kernels without Rebooting? Torrey Hoffman
2001-07-12  1:24 ` C. Slater
2001-07-12 10:07   ` Jesse Pollard
2001-07-12 12:11     ` Ian Stirling
2001-07-12 12:54       ` Jesse Pollard
2001-07-12 14:15         ` Michael H. Warfield
2001-07-12 23:21           ` swsusp [was Re: Switching Kernels without Rebooting?] Pavel Machek
2001-07-12 23:17   ` Switching Kernels without Rebooting? Pavel Machek
2001-07-12 20:47 ` Wilfried Weissmann [this message]
  -- strict thread matches above, loose matches on Subject: below --
2001-07-13  1:11 tas
2001-07-13  3:45 ` Ian Stirling
2001-07-12 15:32 Jesse Pollard
2001-07-12 12:23 Jesse Pollard
2001-07-12 14:55 ` Ralf Baechle
2001-07-12  4:48 Frank Davis
2001-07-12  5:08 ` John Alvord
2001-07-13  9:10   ` Chuck Hemker
     [not found] <994895240.21189@whiskey.enposte.net>
2001-07-12  0:10 ` Stuart Lynne
2001-07-11  9:52 David Balazic
2001-07-11 10:08 ` Laramie Leavitt
2001-07-11 19:12   ` H. Peter Anvin
2001-07-11 15:19 ` C. Slater
     [not found] <NOEJJDACGOHCKNCOGFOMOEKECGAA.davids@webmaster.com>
2001-07-10 20:43 ` C. Slater
2001-07-11  3:50   ` FORT David
2001-07-11  9:10   ` Helge Hafting
2001-07-11 15:41     ` C. Slater
2001-07-12 10:16       ` Helge Hafting
2001-07-11 22:12     ` Paul Jakma
2001-07-11 22:14       ` Rik van Riel
2001-07-11 22:36         ` C. Slater
2001-07-11 23:44           ` Andreas Dilger
2001-07-12  1:17             ` C. Slater
2001-07-12 15:39               ` Rik van Riel
2001-07-12 16:23                 ` Albert D. Cahalan
2001-07-12 17:37                   ` Mike Borrelli
2001-07-12 18:05                   ` Rik van Riel
2001-07-13 10:07                     ` Pau Aliagas
2001-07-12 18:48                   ` Chris Friesen
2001-07-12 10:12             ` Ralf Baechle
2001-07-12 15:32           ` Rik van Riel
2001-07-11 22:36         ` David Schwartz
2001-07-12  7:23         ` Kai Henningsen
2001-07-12 10:05           ` Helge Hafting
2001-07-13  6:50             ` Kai Henningsen
2001-07-12 17:58           ` Hua Zhong
2001-07-11 22:46       ` Kip Macy
2001-07-11 23:02         ` Rik van Riel
2001-07-12  0:31         ` Jesse Pollard
2001-07-12  1:10           ` Hua Zhong
2001-07-11 23:36       ` H. Peter Anvin
2001-07-12  7:23       ` Ville Herva
2001-07-10 18:42 C. Slater
2001-07-10 18:50 ` Chris Wedgwood
2001-07-10 21:11 ` Jesper Juhl

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