BUILD_OWN_FFTW fails regression tests - Redmine #2541
Archive from user: Erik Lindahl
Ubuntu-18.04, default compilers, and default builds.
If fftw-3.3.5 is downloaded manually and compiled, all regression tests pass.
With -DBUILD_OWN_FFTW=ON, the fft/correlationfunctions tests fail.
(from redmine: issue id 2541, created on 2018-06-01 by gmxdefault, closed on 2018-06-06)
- Changesets:
- Revision c17474b3 by Erik Lindahl on 2018-06-06T07:48:49Z:
Bump GMX_BUILD_OWN_FFTW to 3.3.8 to avoid bugs
FFTW-3.3.8 seems to fix build errors with AVX-512, and
as reported on the FFTW web page it also removes the -ffast-math
flag which results in errors with gcc-8.
Fixes #2541.
Change-Id: Ibe4ef0040986e4b83f92f0bb404c72fa1b5e11ea