[mesa-users] simplistic reaction networks
David Arnett
wdarnett at gmail.com
Wed May 14 18:34:03 EDT 2014
We should avoid them: they are often wrong, and may have unintended
consequences. With modern computers you hardly see the time taken by the
network (unless you are doing ~100 species). For years computers have been
designed to run Jack Dongarra's linpack very, very quickly; that was most
of the cost of computing a network. Now there are even better ways (check
with Frank Timmes). Using a tiny (<40 nuclei) net is a bit like taking pi
to be 22/7 (or 3). If you have trouble reproducing someone's results with a
small net, they are probably just wrong. Forgive my rant, but I have spent
some time dealing with networks ;-)
--
David Arnett
Regents Professor
Steward Observatory
University of Arizona
Facts are stubborn, but statistics are more pliable. Mark Twain
Facts do not cease to exist because they are ignored. Aldous Huxley
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