[petsc-dev] CMake: make, install, find_package ?

[Franck Houssen]

----- Mail original -----
> De: "Satish Balay" <balay at mcs.anl.gov>
> À: "petsc-dev" <petsc-dev at mcs.anl.gov>
> Cc: "Franck Houssen" <franck.houssen at inria.fr>
> Envoyé: Dimanche 5 Novembre 2017 15:16:48
> Objet: Re: [petsc-dev] CMake: make, install, find_package ?
> 
> BTW: why are prefering all-cmake build over all-gnumake build?

I have no preference !

> 
> Or are you having trouble with
> https://github.com/jedbrown/cmake-modules/blob/master/FindPETSc.cmake ?
> [and not with PETSc build?]

At first, I was trying to understand why find_package(petsc) was not working.
So then, I looked at the way the make/install was done: that lead me to look at the CMakeLists.txt and test it.

> 
> Satish
> 
> On Sun, 5 Nov 2017, Satish Balay wrote:
> 
> > PETSc has 3 modes of building libraries
> > 
> > 1. all-legacy: using legacy makefiles [which uses vanila make in recursive
> > mode]
> > 2. all-cmake: using cmake to generate gnumakefiles
> > 3. all-gnumake: using gnumakefiles
> > 
> > Now all-gnumake build is the default/primary. with it working in all
> > cases - there is no real reason for all-cmake build.
> > 
> > [we still use all-legacy for documentation generation and examples, and a
> > few other cases]
> > 
> > So all-cmake is not tested and unsupported. But the code is still there and
> > is not removed [or updated]
> > 
> > However - I just tired a simple 'all-cmake' build - and that worked.
> > [attaching make.log]
> > 
> > What did not work for you? Please send relavent logs.

Didn't find mpi.mod.
find_package(MPI) was missing: I just added it.
Still can push if you want to have a look (?).

> > 
> > Satish
> > 
> > On Sun, 5 Nov 2017, Franck Houssen wrote:
> > 
> > > Hello,
> > > 
> > > Does PETSc provide support for CMake ? I would say this is an on-going
> > > feature that is not yet fully working, right ?
> > > My understanding is that "./configure" generates the CMakeLists.txt. But
> > > then, when using cmake, make fails.
> > > Is this supposed to work yet ? Or is this on-going dev ? (google is
> > > misleading about that, and, not seen anything in the doc)
> > > 
> > > Franck
> > > 
> > > PS : I got it to work (partially - for petsc, not external packages) on
> > > my laptop (debian). I may (?) push I somebody is interested to have a
> > > look (on going dev ?).
> > > 
> > 
> 
>