Added fftw tests.

4 jobs for ci in 6 minutes and 4 seconds
Status Job ID Name Coverage
  Test
passed #114700
test_minimal

00:00:32

canceled #114701
test_mpi

00:00:16

passed #114702
test_mpi_fftw

00:02:18

passed #114703
test_mpi_hdf5

00:02:57