Re: Use of large memory
- To: mathgroup at smc.vnet.net
- Subject: [mg50422] Re: [mg50412] Use of large memory
- From: "Virgilio, Vincent" <Vincent.Virgilio at itt.com>
- Date: Fri, 3 Sep 2004 03:35:07 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
> -----Original Message----- > From: Gerry Flanagan [mailto:flanagan at materials-sciences.com] To: mathgroup at smc.vnet.net > Sent: Thursday, September 02, 2004 3:35 AM > To: mathgroup at smc.vnet.net > Subject: [mg50422] [mg50412] Use of large memory > > > I was running into memory limits for a large numerical problem in V5.0. The > fastest fix (I thought) was to get a large amount of RAM. We purchased a > Pentium 4 machine running XP, with 4GB of memory. I built a test function > that progressively uses more memory and prints MemoryUsed[]. > Every time I get to just under 2GB of memory, I get the out-of-memory > error from the kernal. There's nothing else running, and task manager says > there's plenty left. Has anyone found some Windows XP tweak that allows > Mathematica to use what's available? Would this all work better in Linux? > > Gerry Flanagan > Hi Gerry, Investigate the XP boot-time switches '/3gb' and '/userva'. *** N.B. They are dangerous; see http://support.microsoft.com/default.aspx?scid=kb;en-us;328269 Even if they work safely for you, the *per-process* memory limit might only increase to ~ 2.75 GB. Vince Virgilio ************************************ This e-mail and any files transmitted with it are proprietary and intended solely for the use of the individual or entity to whom they are addressed. If you have received this e-mail in error please notify the sender. Please note that any views or opinions presented in this e-mail are solely those of the author and do not necessarily represent those of ITT Industries, Inc. The recipient should check this e-mail and any attachments for the presence of viruses. ITT Industries accepts no liability for any damage caused by any virus transmitted by this e-mail. ************************************