My last message only went to Michael, sorry for that, you can find it below.
I have now built mumps and all its dependencies (including scalapack) on Arch, which works fine for me. How can I actually test whether Kwant uses mumps? The only warning I get is about my scipy missing umfpack. Is that the appropriate runtime warning? If not a runtime warning about a missing mumps might be a good idea. Also, is mumps detected at build or runtime or has the build.conf be filled manually? best, Jörg On 10.09.2015 17:08, Jörg Behrmann wrote: > On Thu, Sep 10, 2015 at 04:41:02PM +0200, Michael Wimmer wrote: >> As for the PGP keys, I suppose >> >> gpg --keyserver pgp.mit.edu --recv-key C3F147F5980F3535 >> >> is what is necessary, right? >> > > Yep, that is exactly it. > >> There is one small issue though: mumps is listed as an optional >> dependency, and it sounds a bit as if kwant would be sped up if mumps is >> installed *after* kwant - but that wouldn't work, mumps has to be there >> on compile-time. Also, the mumps autodetect would not work in arch, I >> believe - so even with mumps installed kwant would not use it right now. >> This could be fixed with a appropriately filled-in build.conf, though >> (see http://www.kwant-project.org/doc/1.0/pre/install#build-configuration ). >> > > That is something that I still wanted to test, as I don't have mumps currently > installed. > >> I cannot test this, as one of the mumps dependencies (scalapack) does >> not compile for me at the moment. Maybe the best would be for now to >> remove mumps from the dependencies altogether? >> > > I'll have have a look whether I can build mumps and its dependencies and if > mumps has to be a compile-time dependency to be detected than mumps needs to > be > moved from optdepends to depends. > > best, > Jörg >
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