Sorry, I am a bit confused.

"you need to make sure that building mpich is set to false."
 - where I can set "building mpich" to false? Shall I edit a file
~/.spack/packages.yaml that BTW currently I do not have?
 - if so, would this be OK?

*spack providers mpi*

*    intel-parallel-studio@cluster:+mpi  mpich@1:  mpich@3:  mvapich2@1.9
mvapich2@2.0:  openmpi@1.6.5  openmpi@1.7.5:  openmpi@2.0.0:  spectrum-mpi*

openmpi:
    version: [2.0.0]
    paths:
      openmpi@2.0.0%gcc@6.2.0:
...SOMEPATH.../m/mpich/3.2/gcc/6.2.0/bin ( the latter is the directory
where mpic++ executable is )
    buildable: False

"You need to run something like spack  install@dealii ^mpich %gcc@6.2"
- sorry, I cannot understand this. I know I am bothering, but can you
please explain this a bit further?

Thanks
Alberto


*Alberto Salvadori* Dipartimento di Ingegneria Civile, Architettura,
Territorio, Ambiente e di Matematica (DICATAM)
 Universita` di Brescia, via Branze 43, 25123 Brescia
 Italy
 tel 030 3711239
 fax 030 3711312

e-mail:
 alberto.salvad...@unibs.it
web-pages:
 http://m4lab.unibs.it/faculty.html
 http://dicata.ing.unibs.it/salvadori

On Tue, Apr 4, 2017 at 4:14 PM, Bruno Turcksin <bruno.turck...@gmail.com>
wrote:

> Alberto,
>
> 2017-04-04 16:04 GMT-04:00 Alberto Salvadori <alberto.salvad...@unibs.it>:
> > If I understand well then, I have to add the  mpich/3.2-gcc-6.2.0
> compiler
> > to spack - I did this just now.
> > I checked that the file compilers.yaml includes the compiler and its
> > path.The same file still includes the compiler gcc-4.9.2
> That's good but you also want to make sure that spack will not compile
> its own mpi. So you need to make sure that building mpich is set to
> false.
> > Shall I delete the corresponding section  in the compilers.yaml file?
> No you don't need to
> > Can I just run spack install dealii instead?
> You need to run something like spack  install@dealii ^mpich %gcc@6.2
> You need to make sure that spack will compile using mpich and that it
> won't install it.
>
> Best,
>
> Bruno
>
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