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Re: Computing Speed [message #11027 is a reply to message #10839]

Thu, 19 February 1998 00:00

steinhh
Messages: 260
Registered: June 1994

Senior Member

For IDL V 4.0.1c

Time Machine/spec
(s)

4.0 Digital Alpha Server 2100 5/250 (250MHz), 1GB
2.3 Digital Workstation 500au 5/500 (500MHz), 300MB

Using the IDL v 4.0.1 version of time_test, identical results were
obtained for IDL v 5.0.3

For IDL v 5.0.3, there are several "improved" time tests, and they've
been modified to allow skipping the file read/write, which is a big
plus, since disk I/O to your current directory says nothing about your
machine's computation speed.

(You must ".run time_test" to get at time_test2/3!)

For IDL v 5.0.3, time_test2,/nofileio:

Time Machine/spec
(s)

7.5 Digital Alpha Server 2100 5/250, 1GB
4.6 Digital Workstation 500au 5/500, 300MB

For IDL v 5.0.3, time_test3,/nofileio:

12.0 Digital Alpha Server 2100 5/250, 1GB
7.9 Digital Workstation 500au 5/500, 300MB

Any others? I must say I was surprised to see the PPro 200MHz result,
though it would be nice to see how it compares with some more complex,
large-array computations.. (not that I have any good suggestions..) I
should also mention that the Alpha Server has four processors
installed, which should beat the PPro pretty easily when used in
parallell!

Regards,

Stein Vidar

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[Message index]

		Computing Speed By: Matthew Hanson on Tue, 17 February 1998 00:00
		Re: Computing Speed By: J.D. Smith on Mon, 23 February 1998 00:00
		Re: Computing Speed By: J.D. Smith on Mon, 23 February 1998 00:00
		Re: Computing Speed By: krieger on Thu, 19 February 1998 00:00
		Re: Computing Speed By: Joe[1] on Thu, 19 February 1998 00:00
		Re: Computing Speed By: David Kastrup on Thu, 19 February 1998 00:00
		Re: Computing Speed By: callen on Thu, 19 February 1998 00:00
		Re: Computing Speed By: steinhh on Thu, 19 February 1998 00:00
		Re: Computing Speed By: Mirko Loehmann on Thu, 19 February 1998 00:00
		Re: Computing Speed By: Helge.Rebhan on Thu, 19 February 1998 00:00

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