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Re: Slow Time Test in IDL 5.4 [message #22246 is a reply to message #22236]

Fri, 27 October 2000 14:37

mole6e23
Messages: 31
Registered: December 1998

Member

davidf@dfanning.com (David Fanning) wrote:

> Before JD goes crazy trying to analyze slow Time_Test2
> values for IDL 5.4, let me alert you that a change to
> the IDL library routine FACTORIAL has made that routine
> *significantly* slower. So much so, that Time_Test2 runs
> about 10 times slower on PCs running IDL 5.4 than it does
> running earlier versions. :-(

But that doesn't seem to be the case on Alphas.

Because I don't want to publish a huge list of numbers:

Total time for time_test2

IDL 5.4 with 5.4 version of factorial: 4.700
IDL 5.4 with 5.3 version of factorial: 4.698
IDL 5.3: 5.594

A nice little speedup for 5.4 regardless of the version of factorial used.

Todd

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[Message index]

		Re: Slow Time Test in IDL 5.4 By: John-David T. Smith on Mon, 30 October 2000 07:02
		Re: Slow Time Test in IDL 5.4 By: mole6e23 on Fri, 27 October 2000 14:37

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