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Re: DumpSave

  • To: mathgroup at
  • Subject: [mg25995] Re: [mg25962] DumpSave
  • From: Jean-Marie THOMAS <jmt at>
  • Date: Wed, 15 Nov 2000 02:09:45 -0500 (EST)
  • References: <>
  • Sender: owner-wri-mathgroup at

I have had the same kind of troubles on a Win95 system with 32 Mb RAM, while 
nothing bad occured on a Winnt with 128MB RAM or Linux with 128 Mb RAM.
So I suspect ram size might be a problem.
Since I don't know how MacOs handles ram, I cannot help you any further, but 
you might try to increase application dedicated memory.

On Tuesday 14 November 2000 09:46, Gareth J. Russell wrote:
> Hi,
> I am having trouble with DumpSave. Since it may well be system specific,
> I'm using a Macintosh G3 with 256MB RAM. I have 100MB allocated to
> MathKernel and 50MB to the Front End.
> My notebook generates a number of large arrays, typically about 1000 by 80
> in size, and there may be around ten of these. They take hours to generate,
> so I want to save them once done so I don't have to re-generate them each
> time.
> I've tried saving the whole lot with DumpSave["filename"], and also saving
> individual arrays with DumpSave["",arrayname]. The process
> begins, the file is created on my computer, and sometimes stuff is written
> to it, but Mathematica then hangs with a watch cursor. Command-period does
> not work to break out of it, and my only option seems to be to force-quit
> Mathematica. This ALWAYS happens with the whole-notebook save, and often
> with the individual array save.
> I have 386MB of space on the drive that is being saved to, so I don't think
> that can be a problem.
> Any tips for making DumpSave more reliable? I wondered if the fact that the
> 386MB is not contiguous might be a factor...
> Gareth
> ==================================================
> Dr. Gareth J. Russell
> Center for Environmental Research and Conservation
>   MC 5556
>     Columbia University
>       1200 Amsterdam Avenue
>         New York, NY 10027, U.S.A.
>  Phone: ++1 212 854 5094
>    Fax: ++1 212 854 8188
> E-mail: russell at
>    WWW:   (NO CHANGE)
> Department of Ecology and Evolutionary Biology
>   University of Tennessee
>     569 Dabney Hall
>       Knoxville, TN 37996-1610, USA
> ==================================================

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      • From: "Gareth J. Russell" <>
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