Re: LDD/STD Optimizations

idacrd!desj@uunet.UU.NET (David desJardins)
Mon, 9 Mar 1992 03:30:05 GMT

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Related articles
LDD/STD Optimizations pardo@cs.washington.edu (1992-03-03)
Re: LDD/STD Optimizations idacrd!desj@uunet.UU.NET (1992-03-09)
Re: LDD/STD Optimizations pardo@cs.washington.edu (1992-03-10)
Re: LDD/STD Optimizations preston@dawn.cs.rice.edu (1992-03-10)
Re: LDD/STD Optimizations idacrd!desj@uunet.UU.NET (1992-03-11)
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Newsgroups: comp.compilers
From: idacrd!desj@uunet.UU.NET (David desJardins)
Keywords: optimize, architecture
Organization: IDA Center for Communications Research
References: 92-03-018
Date: Mon, 9 Mar 1992 03:30:05 GMT

In article 92-03-018 David Keppel writes:
>Preston:
> Maybe I'm just overly used to FORTRAN, but I see a lot of code
> where unaligned array slices or odd-size columns get passed.


People who really care about performance are going to write their code on
the basis of what performs well. Just as on machines with multiple memory
banks serious users avoid power-of-two strides, on machines with a
substantial performance penalty for unaligned access serious users can
avoid unaligned slices.


David desJardins
--


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