Re: FFTW 2.1.3 Libraries with Portland 4.0 & Myrinet?

Patrick,

thank you for confirming my suspicion that PGI was the culprit.

I was able to build the FFTW libraries using gcc with the '--enable-mpi'
flag, and used PGI f90 ONLY for the fortran routines in the libraries.

-jeffrey

On 25 Nov 2002, Patrick Geoffray wrote:

> Hi Jeffrey,
> 
> On Wed, 2002-11-20 at 19:59, Jeffrey J. Barteet wrote:
> > Sooo........I'm stuck. Anybody using Portland compilers, MPI and FFTW 
> > libraries that can offer any advice?
> 
> Well, I have tried to build FFTW 2.1.3 without MPI but with gcc and it
> works. The same thing without MPI and pgcc (4.0) and the check fails:
> [...]
> Testing correctness for n = 20...OK
> Testing correctness for n = 21...Found relative error 1.528001e+00
> fftw: failure in Ergun's verification procedure
> 
> All I can say is that it has nothing to do with MPI, the PGI compiler
> seems to be the bad boy here.
> 
> Patrick
>