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From: tmoran@acm.org
Newsgroups: comp.lang.ada
Subject: Re: reading a text file into a string
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>cache aligning data structures is in matrix multiplication and other
>linear algebra code for large matrix sizes.
>
>But there the difference is often a factor of 3 or more in execution time.
>
>How many people actually WRITE such code?  Very few.  That is what ATLAS
  Are there compilers with a "pragma Really_Really_Optimize" option?  Or
post-compilers that read a small piece of object code, mull over it for
quite some time, and write a very highly optimized replacement?