- When I compiled fftw3.0.1 with pgi7.0.4, I used this configure:
./configure CC=“pgcc” CFLAGS="-O3 -fastsse -Mvect=sse -tp k8-64" F77=“pgf77” FFLAG="-O3 -m64",
but I found this warning: “configure: WARNING: *** Couldn’t figure out how to link C and Fortran; switching to --disable-fortran”. Therefore, any suggestions?
The compiled fftw library will be used by a code writen in F90. I wonder if I should compile fftw with F77=“pgf90”?
In order to improve the performace, can you tell me if the CFLAG and FFLAG is sufficient (the processor in my cluster is opteron x86_64)?
Thanks in advance,