Sorry OT On Oct 28, 12:50 am, Ondrej Certik <ond...@certik.cz> wrote: > Especially after reading benchmarks like these: > http://www.oonumerics.org/blitz/benchmarks/acou3d.html > where one needs to use templates and lots of expertize in C++ to even > beat fortran code written by pretty much anybody...
Well the benchmark I see requires the Fortran programmer to implement a tiled traversal of a 3-d array and by hand unrolling 3 iterations to avoid copying arrays. I don't think that "pretty much anybody" has those tricks up his sleeve. Blitz++ transparently does the Hilbert- curve array traversal and lets you swap array handles instead of array contents, so you don't have to manually unroll the iteration. I wouldn't want to write my own expression template library from scratch, but _using_ blitz++ is much easier than writing the analogous code in Fortran. Volker -- To post to this group, send an email to sage-devel@googlegroups.com To unsubscribe from this group, send an email to sage-devel+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-devel URL: http://www.sagemath.org
