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Re: Petsc Error

To: petsc-users@xxxxxxxxxxx
Subject: Re: Petsc Error
From: Satish Balay <balay@xxxxxxxxxxx>
Date: Tue, 9 Oct 2007 12:54:19 -0500 (CDT)
In-reply-to: <470BBDA4.4060404@chalmers.se>
References: <470B7B31.9070803@chalmers.se> <a9f269830710090613j7f491647ya5a0925576d96163@mail.gmail.com> <470B9D50.8060901@chalmers.se> <Pine.OSX.4.64.0710091157420.224@bsmith.local> <470BBB9E.7060505@chalmers.se> <Pine.OSX.4.64.0710091239070.224@bsmith.local> <470BBDA4.4060404@chalmers.se>
Reply-to: petsc-users@xxxxxxxxxxx
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On Tue, 9 Oct 2007, Berend van Wachem wrote:

> Hi,
> 
> I am using 32 bit linux (slackware) on a 64 bit opteron. Would using a 64 bit
> linux distro help?

32bit adressing => 4GB max. [both for the OS and a process].  But
generally a single process allocate can allocate only 2GB or 3GB - not
4GB. [This is OS dependent - as the OS requires the process to use
this remaining addressspace for other things].

64bit linux will avoid this limitation.

Satish

Follow-Ups:
- Re: Petsc Error
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References:
- Petsc Error
  - From: Berend van Wachem
- Re: Petsc Error
  - From: Matthew Knepley
- Re: Petsc Error
  - From: Berend van Wachem
- Re: Petsc Error
  - From: Barry Smith
- Re: Petsc Error
  - From: Berend van Wachem
- Re: Petsc Error
  - From: Barry Smith
- Re: Petsc Error
  - From: Berend van Wachem

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