Hi Martin, At an arbitrary level of precision, there will likely be differences [1]. These differences are unlikely to affect any model results to a notable degree. When I've done testing previously with different compilers, processors, and platforms, changing compilers (gcc vs ifortran) made the biggest difference, and with a stiff problem the differences were <10% of the RSE. You can get bigger differences than that with the problem I was using just due to initial theta estimates.
The short answer is that it shouldn't be a problem. [1] Intel has specifically slowed down their compiler for AMD chips before, but that is hopefully behind us now. http://i.downloadsquad.switched.com/2010/01/04/intel-forced-to-provide-a-compiler-that-isnt-crippled-for-amd-processors/ Thanks, Bill On Aug 12, 2012, at 4:09 PM, "Martin Johnson" <jmgmut...@gmail.com> wrote: > Dear Group, > > I would like to get your comments on the following: > > Intel fortran on Intel and AMD processors: > > I would like to install nonmem compiled using Intel fortran compiler (11.2) > in a linux OS with AMD processor. Will the nonmem results of this > installation differ from other processors (nonmem compiled using Intel > fortran compiler in intel processors).If there would be a difference, what > could be the possible reasons for this difference? > OR > Are there any recommendations like optimization flags to get most similar > results between these processors? > > Thanks for your help > > regards, > Martin >
