Here are some apples and oranges. This is the MacIntel machine with a single 3.6 Ghz CPU vs the G5 which has 4 x 2.5 Ghz CPU's. The MacIntel machine uses gcc 4.0.1 and Intel's ifort, the G5 uses gcc and gfortran 4.0.1. As soon as you have a fat or a i386 build, we can compare compilers. So far, the MacIntel looks good -- it will look even better with dual core Intel chips and with icpc instead of gcc. I'll try to build something just using the Intel compilers, but I run into trouble building dylibs and bundles.
timer.R
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timings_G5.R
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timings_386.R
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On Jan 3, 2006, at 14:52 , Simon Urbanek wrote:
On Jan 3, 2006, at 4:21 PM, Jan de Leeuw wrote:I have NOT been able to compile a native gfortran from the apple cvs (low priority for apple) and i have NOT been able to build R using the intel C and fortran compilers (mostly configure problems).I was struggling with gfortran on the IntelMac for a while, too. The only (and I tried many, including backporting stuff, trust me) configuration using gcc that (sort of) works is FSF build from the 4.0.x branch.Jan, can we compare some benchmarks? I suppose the Intel compiler should be much faster ... (and no, I still don't have a good benchmark example - we can use yours).I'm working on R 2.2.1 release builds for ppc64 and i386 right now (batteries included ;)), so stay tuned. [Yes, ppc release will be out very soon, too - just the GUI localizations are a tad behind schedule - my apologies - you can get the framework from the nightlies page for now].Cheers, Simon
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