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Dual processors and such

Dual processors and such

Dual processors and such

(OP)
Hi All,

I have recently started using a dual Zeon processor machine with 4GB of RAM.  I'm wondering what I need to do to the computer's settings and the software settings to take full advantage of that processing power.

Any suggestions?

Thanks,
Barrett

RE: Dual processors and such

(OP)
In addition to the questions above, is there some way to tell nastran to use more of the system memory (RAM), assuming it's available?

Thanks,
b.

RE: Dual processors and such

As far as I know, MSC-Nastran is still 32-bit
If you are running MS Win-XP Professional, you can raise the memory limit to 3 Gb by modifying the boot.init file:
go to: start -> settings -> ctrl-panel -> system ->advance
PICK: settings in "start & recovery" area
PICK: edit in "default operating system"
duplicate the line: multi(0)disk(0)rdisk....
and add to the 1st-line: /3GB  between: ...Professional" /fastdetect
so it looks like this:
...Professional" /3GB /fastdetect

The order should look like this:
multi(0)disk(0)rdisk....Professional" /3GB /fastdetect
multi(0)disk(0)rdisk....Professional" /fastdetect

So now you can boot either in normal-mode or with 3GB

CAUTION:
some apps & video cards might require "tweaking" of the boot.ini file with /Useva=xxxx  option.

About MSC-Nastran itself:
edit the nastran-rc file
and add:  memory=xxxMW
where: MW is MegaWords
and value-MW * 4 bytes/word = value MegaBytes

Hope this helps-

RE: Dual processors and such

Does this also work for Windows XP Home?  I have 4GB of RAM but am only able to allow NASTRAN to use up to 1GB without failing.

RE: Dual processors and such

Igbav8r,
the settings listed above only work with Win-XP Professional and not with the home-edition.  An alternative, is to make a dual-boot and use Linux instead of Win-XP.  You will still be restricted to 2Gb by MSC-Nastran because of the 32-bit limitation.  Sorry.

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