Re: Speeding up ATLAS build time

[R Clint Whaley <rwhaley@cs.utk.edu>]

Carl,

>At any rate, I have been thinking of ways to speed up the
>build time.  In my experience, it is almost always faster
>to use "make -j N", where N is usually 2 or 3 times the
>number of processors.  Particularly on my dual processor
>machine, it would be really nice to (roughly) halve the
>build time.  I am starting to go through ATLAS to figure
>out how to modify the system so it can automatically
>use "make -j N" while building libraries and executables,
>and "make" while doing timing runs.
>
>If/when I get it working, would you like me to send you
>a patch file?

This is an excellent idea, and please do send it in if you get it rolling.
If the required changes do not mess up the serial install, and don't
require non-portable make stuff, this would be a great boon to the package.

Thanks,
Clint