[Haskell-cafe] A tale of three shootout entries
r.kelsall at millstream.com
Fri Nov 30 13:30:45 EST 2007
Sterling Clover wrote:
> I'm still curious if the pre-calculation of partial sums that I did
> works well across processors, as I don't see why it shouldn't. My
> less-strictified version of Don's code is attached, and below are the
> functions you'll need to insert/replace to make the partial-sums
> optimization work.
Hello Sterling, I've timed your new Fasta with optimised bangs - it's
the fastest so far. But the pre-calculated partial-sums version seems
to go a bit slower for some unknown reason.
Optimised bangs program 11.20 compiled ghc --make
Optimised bangs program 10.73 compiled with -O -fglasgow-exts
Partial-sums program 11.97 compiled ghc --make
Partial-sums program 11.14 compiled with -O -fglasgow-exts
This is on my GHC 6.6.1, W2K, Intel Core 2 Duo 2.33GHz machine - same
as for the previous timings I gave in this thread.
More information about the Haskell-Cafe