The release notes for PGI 19.1 claim there is a page for building FFTW 3.3.8 but links to a page that only has instructions for PGI 12.1 and FFTW 3.3.2. Using those, I tried
export CFLAGS="-fast -Minfo -fPIC"
export FFLAGS="-fast -Minfo"
–enable-shared --enable-threads --enable-openmp
CC=pgcc FC=pgfortran F77=pgfortran
make -j 4
whereupon it hangs.
This is on CentOS 7, 3.10.0-1062.9.1.el7.x86_64, Intel® Xeon® Gold 6140 CPU @ 2.30GHz.
I tried that using both the LLVM and the no LLVM versions; same results.
I have also tried with --with-avx, --with-avx2 (configures but doesn’t build), and the above without specifying.
Are there actually instructions for more recent versions of PGI and FFTW available somewhere?
Thanks, – bennet