Hi Behrooz,
When you install deal.II using Spack, it is completely isolated from the
system environment. That way, you can install multiple versions of the
same package without them conflicting with one another. Before you can
use deal.II though spack, you populate all of the environment variables
with the paths to deal.II and its dependencies. The quickest way to do
this is using "spack load" which is documented here
<https://spack.readthedocs.io/en/latest/command_index.html#spack-load>
(spack's documentation) and here
<https://github.com/dealii/dealii/wiki/deal.II-in-Spack#environment-modules>
(the deal.II wiki). For you, this would mean running "spack load
[email protected]" or something similar, and then simply running "cmake ." in
the tutorial folder (don't forget to delete CMakeCache.txt first). You
can also look into using filesystem views
<https://spack.readthedocs.io/en/latest/workflows.html?highlight=filesystem%20view>
and environment modules
<https://spack.readthedocs.io/en/latest/environments.html> to the same
effect.
Best,
Jean-Paul
On 17.01.21 12:50, Behrooz Karami wrote:
Hi Wolfgang,
That's true but maybe I should have given a bit of a background here.
I have three versions of deal.ii installed at the moment. The first
one 9.0 installed through Spack, the second one 9.2 manually installed
according to procedures described in the readme file; and the third
one again 9.2 but installed through Spack.
The reason for the third installation was exactly the same problem
mentioned here (which happened after the 2nd installation). Meaning
that during the 2nd installation I didn't call my required libraries .
But as the third attempt I decided to use Spack as it was already
available on the machine and could install all the libraries along the
way.
Finally the third installation was successful according to the output
log. And when I check the config. files they are correct. I mean it
seems that installation has been done with PETSc, MPI and all other
required libraries. The configurations are also correct e.g. it has
been indicated that:
DEAL_II_WITH_MPI = ON
DEAL_II_WITH_PETSC = ON
DEAL_II_PETSC_WITH_COMPLEX = FALSE (not OFF!)
I attach the config. files here as a reference.
So to me still it seems that deal.ii is not looking at the right folder.
I have not installed deal.ii in "/usr/local" but I could see that
somehow it has been installed there (as well) probably by default! I
guess it in fact has happened during the second installation. Because
I got the same message when I was using the 2nd installation. I am not
sure exactly which of my modifications resolved it but it was revealed
to me that somehow I have a copy of deal.ii there which is called as a
first choice.
Regards,
Behrooz
On Sat, Jan 16, 2021 at 5:25 PM Wolfgang Bangerth
<[email protected] <mailto:[email protected]>> wrote:
On 1/16/21 2:04 AM, Behrooz Karami wrote:
>
> Error! This tutorial requires a deal.II library that was
configured with
> the following options:
>
> DEAL_II_WITH_MPI = ON
> DEAL_II_WITH_PETSC = ON
> DEAL_II_PETSC_WITH_COMPLEX = OFF
> However, the deal.II library found at /usr/local was configured
with these
> options
>
> DEAL_II_WITH_MPI = OFF
> DEAL_II_WITH_PETSC = OFF
> DEAL_II_PETSC_WITH_COMPLEX =
>
> This is while I use the
> 'cmake -DDEAL_II_DIR=/path/to/the/source .'
> command to address the right configurations. Also when I check
the cmake
> configurations in installed folder they look OK and with correct
configurations.
> Could you please advise me on this issue as well?
Behrooz -- the error message says what the problem is. step-18
requires
"DEAL_II_WITH_MPI=ON", but your installation has
"DEAL_II_WITH_MPI=OFF", and
similarly for PETSc. In order to run step-18, you need to install
deal.II with
a PETSc installation and with MPI installed, but you didn't. The
steps
necessary to do that are listed in the doc/readme.html file.
Best
W.
--
------------------------------------------------------------------------
Wolfgang Bangerth email: [email protected]
<mailto:[email protected]>
www:
http://www.math.colostate.edu/~bangerth/
<http://www.math.colostate.edu/~bangerth/>
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