Yes, that explains it, thanks! Am Dienstag, 11. Juli 2017 15:33:18 UTC+2 schrieb Jean-Paul Pelteret: > > No, I think that you've misunderstood. The message is telling you what the > prerequisites are, i.e. that you must have PETSc enabled and PETSc cannot > have complex number support enabled. The double negation of the second > point is definitely a bit confusing. > > On Tuesday, July 11, 2017 at 3:22:27 PM UTC+2, Maxi Miller wrote: >> >> Yes, but my problem is that I built PETSc using >>> --with-scalar-type=complex, and still dealII thinks that it was built >>> without complex support (according to the flag). >>> >> >> >> Am Dienstag, 11. Juli 2017 15:19:37 UTC+2 schrieb Jean-Paul Pelteret: >>> >>> Hi Maxi, >>> >>> To the best of my knowledge, deal.II automatically picks up from PETSc's >>> configuration that it is built with complex numbers enabled. You'd have to >>> rebuild PETSc without complex number support (via the " >>> --with-scalar-type='real'" flag >>> <https://github.com/LLNL/spack/blob/develop/var/spack/repos/builtin/packages/petsc/package.py#L174>) >>> >>> and then link deal.II to this new installation of PETSc. >>> >>> Regards, >>> Jean-Paul >>> >>> On Tuesday, July 11, 2017 at 3:07:43 PM UTC+2, Maxi Miller wrote: >>>> >>>> That is interesting. I got exactly that output (did not know that I can >>>> do that, btw.), but my PETSC-installation is configured with complex >>>> numbers. How can I then tell dealII during the configuration process that >>>> that is the case? >>>> >>>
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