Re: Static analysis of code for "flop counting"?

Eugene Miya N. <eugene@ames-pioneer.arpa>
Wed, 6 May 87 20:31:07 pdt

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Date: Wed, 6 May 87 20:31:07 pdt
From: Eugene Miya N. <eugene@ames-pioneer.arpa>
Newsgroups: comp.compilers
In-Reply-To: <552@ima.UUCP>
References: <1299@ames.UUCP>
Organization: NASA Ames Research Center, Moffett Field, Calif.

In article <552@ima.UUCP> Henry Spencer writes:
>
>[You can run your assembler through a preprocessor that puts counting code
> before each float operations.]
>This gets you fast, accurate counts without compiler cooperation.
>
> Henry Spencer @ U of Toronto Zoology


Bullshit.


It's very intrusive (typically around 10%). This is enough to totally
wreck measurement on all and worse: synchronization on parallel codes. If you
want a reference to identifying the problem I will mail it, otherwise
forget it.


From the Rock of Ages Home for Retired Hackers:


--eugene miya
    NASA Ames Research Center
    eugene@ames-aurora.ARPA
    {hplabs,hao,ihnp4,decwrl,allegra,tektronix,menlo70}!ames!aurora!eugene
--

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