11 May
2006
11 May
'06
8:21 a.m.
John Meacham wrote:
also, incidentally, for anyone on x86 that cares about math performance, use -optc-fsse2 to make it use the much nicer math coprocessor available on modern x86 cpus.
I object to its characterization as "nicer". It's faster, but *lower precision*. It worries me that people are so blithely abandoning those extra bits in the name of speed. A few years from now there's going to be an expensive engineering failure, and months of investigation will reveal that it was because a math library was compiled for SSE2. Be careful out there. (And while I'm on the subject, Haskell should have a LongDouble type.) -- Ben