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Re: IDL program runs faster on slower CPU [message #88093 is a reply to message #88088]

Wed, 19 March 2014 12:47

Deckard++;
Messages: 11
Registered: March 2010

Junior Member

I am getting a floating underflow error:

% Program caused arithmetic error: Floating underflow

It is generated by a call to la_eigenql() that performs some singular value decomposition to perform principal component analysis. I had already tried with the eigenql() function but that did not influence the performance.

I had come to believe that such underflow errors don't really matter, but maybe I am wrong?

-- Arthur;

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[Message index]

		IDL program runs faster on slower CPU By: Deckard++; on Sun, 16 March 2014 15:15
		Re: IDL program runs faster on slower CPU By: Craig Markwardt on Mon, 17 March 2014 10:33
		Re: IDL program runs faster on slower CPU By: Deckard++; on Tue, 18 March 2014 05:22
		Re: IDL program runs faster on slower CPU By: Jim Pendleton on Tue, 18 March 2014 14:40
		Re: IDL program runs faster on slower CPU By: Craig Markwardt on Tue, 18 March 2014 18:47
		Re: IDL program runs faster on slower CPU By: Deckard++; on Wed, 19 March 2014 01:45
		Re: IDL program runs faster on slower CPU By: Craig Markwardt on Wed, 19 March 2014 10:45
		Re: IDL program runs faster on slower CPU By: Deckard++; on Wed, 19 March 2014 12:47
		Re: IDL program runs faster on slower CPU By: Craig Markwardt on Wed, 19 March 2014 16:06

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