Le mercredi 13 septembre 2006 15:59, Stephan Kulow a écrit : > Am Mittwoch, 13. September 2006 20:57 schrieb Marc Collin: > > minimum to be done: -march=x86-64 > > > > i think x86 64 bits have minimum sse2 > > > > -mfpmath=sse2 > > > > -msse2 > > -funroll-all-loops > > Make sure you read http://funroll-loops.org/ - what exactly do you measure? >
time to start, time to run function..... when i created some program in C for a company i used often something similar to.... g++ -O2 -funroll-all-loops -fomit-frame-pointer -ffast-math -march=x86-64 -mfpmath=sse program_name.cpp -o program_name i get about 10% faster then the standard syntax.... without change my code..... --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
