I believe that Francois is correct in saying that a feature of intel compilers is that they do not work well on non-intel CPUs. Can't imagine why that would be. If you have a an intel CPU then using an intel compiler would be an advantage. Code optimization is usually architecture specific, so fiddling with the compiler options may also make a difference.
Adam On Tue, 18 May 2010, Francois Berenger wrote: > Hello, > > This is not what you asked for, but I think > it is good to know: Intel compilers don't seem > to like non-Intel CPUs: > > http://www.agner.org/optimize/blog/read.php?i=49 > > Regards, > F. > > Terry Lang wrote: > > Hey Everyone, > > > > I am considering switching from gcc to the Intel compiler in the > > hopes of making some of calculations run a bit faster. Has anyone ever > > tried compiling the ccp4 code base with the Intel compilers? Is there a > > difference in speed? What about in the reproducibility of the > > calculations? Any changes in statistics? Any information would be > > greatly appreciated! > > > > Thanks, > > Terry > > >
