[R] Compiling R with Intel compilers - recommended options?
tjrc at sanger.ac.uk
Fri Jun 18 13:37:02 CEST 2004
On 18 Jun 2004, at 11:58 am, Prof Brian Ripley wrote:
> Fine. The issue on gcc 3.4.0 is that if you compile
> src/modules/lapack/dlamc.f without -ffloat-store it loops forever.
> I suspect you need to compile it without optimization or with the
> equivalent of -ffloat-store. It's a separate file in 1.9.1 to make
> easier/less penalty and configure sets -ffloat-store if g77 is
> LAPACK calls Fortran functions to try to force stores, and that worked
> versions of gcc <= 3.3.3 (and of course only machines with extended
> registers like ix86 need the subterfuge).
From my reading of the Intel compiler documentation, the equivalent
option for icc and ifort is -mp, so I'll have a go at that.
Dr Tim Cutts
Informatics Systems Group
Wellcome Trust Sanger Institute
Hinxton, Cambridge, CB10 1SA, UK
More information about the R-help