Messages in this thread | | | From | "lokum spand" <> | Subject | Re: A possible idea for Linux: Save running programs to disk | Date | Sat, 01 Oct 2005 14:51:17 -0800 |
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>From: Michael Concannon <mike@concannon.net> >To: Arjan van de Ven <arjan@infradead.org> >CC: lokum spand <lokumsspand@hotmail.com>, linux-kernel@vger.kernel.org >Subject: Re: A possible idea for Linux: Save running programs to disk >Date: Sat, 01 Oct 2005 18:21:37 -0400 > >Arjan van de Ven wrote: > >>On Sat, 2005-10-01 at 13:30 -0800, lokum spand wrote: >> >> >>>I allow myself to suggest the following, although not sure if I post in >>>the right group: >>> >>>Suppose Linux could save the total state of a program to disk, for >>>instance, imagine a program like mozilla with many open windows. I give >>>it a SIGNAL-SAVETODISK and the process memory image is dropped to a >>>file. I can then turn off the computer and later continue using the >>>program where I left it, by loading it back into memory. >>> >>>Would that be possible? At least a program can be given a ctrl-z and is >>> >>> >> >>there is a LOT of state though.. the moment you add networking in the >>picture the amount of state just isn't funny anymore. Your X example is >>a good one as well... >> >> >There are a few cluster/parallel computing libraries out there that are >starting to allow "process migration"... > >One would assume that "saving it to a disk" is simply a degenerate case of >migrating the process... > >Presuming they have process migration working (and it seemed close a while >ago when I last looked), saving to a file might already be supported... >I'd google "process migration" and you are likely to find a lot of >discussion on this topic... > >/mike > >>- >>To unsubscribe from this list: send the line "unsubscribe linux-kernel" in >>the body of a message to majordomo@vger.kernel.org >>More majordomo info at http://vger.kernel.org/majordomo-info.html >>Please read the FAQ at http://www.tux.org/lkml/ >> >> >> >
In fact moving processes from one machine to another would be a brilliant feature at my work, since we run fairly large and time-consuming simulations on electronic circuits. If the kernel could natively support bouncing jobs back and forth, that would really be something. Since we simulate with proprietary software, I suppose we can't rely on the simulator being rewritten to support such special libraries.
Does any other Unix variant have process bouncing already?
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