On 19/05/10 09:40, Kay Diederichs wrote: > Charles Ballard schrieb: >> Hi Francois >> >> configure linux_intel_compilers >> >> should do the trick. We distribute ccp4 built with the intel compilers for >> OS X. Part of this is that the macs cover a much smaller range of cpus than >> linux boxes, so optimisation is less of a problem. If you want speed make >> sure that you are compiling for your architecture. >> >> My feeling, and I haven't checked this for some time, is that the intel >> compilers are a bit faster, 5-10% max, but that the gnu compilers have been >> closing the gap. > > true >
It is extremely noticeable for cns. With similar optimizations you get a boost of more then 30% comparing the gcc/gfortran and ifc/icc builds. -- Justin Lecher Institute for Neuroscience and Biophysics ISB 3 - Institute for structural biochemistry Research Centre Juelich GmbH, 52425 Juelich,Germany phone: +49 2461 61 5385
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