A Dijous 14 Juny 2007 16:40, M. Edward (Ed) Borasky va escriure: [...] > > b. You want to develop 64-bit applications
why? you want to develop applications, that they run in a 32 or 64 system it's another thing. Maybe they run "better" or worst, but the final architecture cannot be a target, I think. [...] > As far as the applications in the Debian pool, or open source in > general, are concerned, I would first look at large-scale scientific > computing. And I would start with making sure that you have the Atlas > (automatically tuned linear algebra subroutines) libraries and their > BLAS and LAPACK interfaces all tuned up and ready to install on all the > architectures. The ATLAS team is just about ready to release 3.8 -- they > are at 3.7.32 at the moment and I think what's in Debian is still 3.6.0. ok, but I think that this apps are developed in fortran, and the gfortran is it sufficient developed to make a good difference? Maybe GSL or MTL .. > The last test I ran on my Athlon64 X2 4200+ (2.2 GHz) got me about 10 > gigaflops in 32-bit arithmetic and about half of that in 64-bit arithmetic. I don't understand that. Are you saying that the 64-bits was really worst than 32? -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]
