Re: speed up calculation suggestions
- From: glen herrmannsfeldt <gah@xxxxxxxxxxxxxxxx>
- Date: Tue, 13 Nov 2007 23:38:46 -0800
e p chandler wrote:
I doubt that going to unformatted files from formatted files will do
you much good. The same for changing computers, compilers or operating
systems. If you want a big "payoff", find a better way to solve your
problem.
[The last time I ran into a program that was I/O bound was on a
386sx-25 computer where the rate limiting step was a dot matrix
printer used for output! :-).]
From a Fortran point of view, conversion is I/O, from a hardware
point of view it is computation.
I have seen some very slow conversion routines and some fast
ones. You never know until you time them.
-- glen
.
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