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Re: Software optimization resources [message #30530 is a reply to message #30523]

Thu, 06 January 2011 22:52

Didier
Messages: 728
Registered: November 2008
Location: France

Contributor

Hi Novo,

I haven't tried the samples you are talking about but for special assembler functions to work (SSE, or whatever, ....) the memory has to be aligned on 4 bytes or 64 bytes or 128 bytes or more maybe.
The alignement depends on the assembler instructions used.

If the memory is not aligned correctly either you get bad results or just poor execution timings.

Maybe this is what happens in you're case

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[Message index]

		Software optimization resources By: Novo on Thu, 06 January 2011 04:03
		Re: Software optimization resources By: dolik.rce on Thu, 06 January 2011 13:33
		Re: Software optimization resources By: Didier on Thu, 06 January 2011 22:52
		Re: Software optimization resources By: dolik.rce on Fri, 07 January 2011 11:01
		Re: Software optimization resources By: Didier on Fri, 07 January 2011 17:44
		Re: Software optimization resources By: Novo on Mon, 17 January 2011 05:53

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