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Re: IDL and Linux on dual processor [message #19322 is a reply to message #19319]

Thu, 09 March 2000 00:00

pit
Messages: 92
Registered: January 1996

Member

In article <38C53DC8.4C39C579@colorado.edu>,
charles fowler <cfowler@colorado.edu> writes:
> Hi all,
>
> I'm running IDL on a dual processor
> Linux machine.

What Processors, which Mainboard, how much memory,
and how much memory do the IDL-Jobs require?

> When I run two intensive IDL jobs so
> that both processors are being used,
> the machine freezes,and I have to reboot.
> The machine will freeze with a matter of
> seconds. TOP shows 100% usage at freeze point.
>
> I can run multiple compiled C or FORTRAN
> programs all day just fine.

Do they also use about the same amount of memory as the
IDL-Jobs?

> RSI says that they cannot duplicate the problem.

Me neither, but I'm running SuSE. The System load is
2-4 for 24/7, doing 2-3 IDL Jobs in parallel, no problems
whatsoever.

> Does anyone have any suggestions?
> Is this a problem with IDL, REDHAT, motherboard???

Either MB (e.g. I have lots of Problems with a Gigabyte
Mainboard that freezes with interrupt problems).
Or Memory Problems. Try looking for memtest (look e.g.
at freshmeat) and check it.
Have a look at the Kernel messages (Don't know RedHat,
SuSE has Kernel logging on console 10; switch there
immediately after starting the jobs, or start them with
a delay, and look.)

Peter

--
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~~~~~
Dr. Peter "Pit" Suetterlin http://www.astro.uu.nl/~suetter
Sterrenkundig Instituut Utrecht
Tel.: +31 (0)30 253 5225 P.Suetterlin@astro.uu.nl
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[Message index]

		Re: IDL and Linux on dual processor By: pit on Fri, 10 March 2000 00:00
		Re: IDL and Linux on dual processor By: charles fowler on Thu, 09 March 2000 00:00
		Re: IDL and Linux on dual processor By: pit on Thu, 09 March 2000 00:00
		Re: IDL and Linux on dual processor By: Craig Markwardt on Tue, 07 March 2000 00:00

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