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Re: IDL for LINUX [message #5103 is a reply to message #5101]

Wed, 11 October 1995 00:00

kerr
Messages: 1
Registered: October 1995

Junior Member

In article <45bulh$m7h@news4.digex.net> Mary Ruth Keller <keller@tesla.jhuapl.edu> writes:
[intro stuff deleted]
> I have run this model on five different machines and five different
> operating systems: (1) A 33 MHz 486 with 16 Meg running MS-DOS or MS-WINDOWS
> 3.1 with 8 Meg (yes, I have been using the alpha version of IDL for DOS), (2) a
> 66 MHz 486 with 16 Meg running MS-DOS, (3) a 170 MHz DEC-Alpha with 64 Meg
> running OPEN-VMS, (4) a 99 MHz HP9000/735 (RISC) with 144 Meg running HP/UX,
> and (5) the DX4-100 with 32 Meg running LINUX I mentioned earlier. I have put
> the 33 MHZ machines in the same category because the program took the same
> length of time for both. For speeds, I got the following:

> (1) 33 MHz - 53 minutes
> (2) 66 MHz - 40 minutes
> (3) DEC-Alpha - 8 minutes 25 seconds
> (4) HP-RISC - 4 minutes 25 seconds
> (5) LINUX - 9 minutes 50 seconds

Could you tell us what version numbers of IDL you were using on each machine
and OS? Also, what are the memory demands of your program, and how frequently
does it produce graphical or disk output?

> The DEC-Alpha should have been faster than this. I suspect OPEN-VMS is what
> slowed it down.

I agree, the Alpha should have been MUCH faster than it was. Beats me why it
wasn't.

> For all the machines tested, I made sure my program was the
> only active user process during the test. So, if one is stuck trying to Science
> on
> no money like I am, LINUX sure makes life alot easier!

> P.S. Since the paper has been published, the model is in the public domain,
> should anyone be interested in running it for a test.

I think I might be interested. I'll get in touch with you directly when I'm
ready to give it a try. Thanks for the post.

Stephen S. Kerr
skerr@ucsd.edu

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[Message index]

		IDL for LINUX By: wilsont on Mon, 18 September 1995 00:00
		Re: IDL for LINUX By: kerr on Wed, 11 October 1995 00:00
		Re: IDL for LINUX By: Mary Ruth Keller on Wed, 11 October 1995 00:00
		Re: idl for linux By: R. Bauer on Sat, 11 January 1997 00:00
		Re: idl for linux By: amunter on Sat, 11 January 1997 00:00
		Re: idl for linux By: tferro on Fri, 10 January 1997 00:00
		Re: idl for linux By: Phil Williams on Fri, 10 January 1997 00:00
		Re: idl for linux By: bart hoekstra on Fri, 10 January 1997 00:00
		Re: idl for linux By: rsimpson on Wed, 22 January 1997 00:00
		Re: idl for linux By: David Schmidt on Fri, 17 January 1997 00:00
		Re: idl for linux By: steinhh on Thu, 23 January 1997 00:00
		Re: idl for linux By: steinhh on Mon, 03 February 1997 00:00
		Re: idl for linux By: rsimpson on Sun, 02 February 1997 00:00
		Re: idl for linux By: ljg on Sun, 09 February 1997 00:00
		Re: idl for linux By: pit on Tue, 11 February 1997 00:00

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