Add a default local.cfg for a candi installation #5240
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contrib/install/local.cfg
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| PACKAGES="load:dealii-prepare once:cmake once:astyle once:hdf5 once:p4est once:trilinos dealii" | |||
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| DEAL_II_VERSION=v9.4.2 | |||
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9.5 is already out, though perhaps not yet advertised: https://github.com/dealii/dealii/releases How about we use that right away? Then people won't have to update in a year.
contrib/install/local.cfg
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| PACKAGES="load:dealii-prepare once:cmake once:astyle once:hdf5 once:p4est once:trilinos dealii" | |||
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In the nonlinear solvers discussion, I will talk about SUNDIALS. One of the questions we'll have to discuss is whether we can add that to the prereqs -- my suggestion will be "yes", so perhaps add it here already now?
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@bangerth Why rely on SUNDIALS? NOX is part of Trilinos and of course already available without additional packages.
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We didn't recommend people to use NOX in the past (I'll have to update the deal.II docs accordingly -- patch coming up). So if you followed our recommendations, it wouldn't have included NOX.
But (i) Trilinos also doesn't include time steppers, (ii) my sense is that KINSOL is actually better than NOX, and (iii) NOX is not actively developed, whereas SUNDIALS is.
| We require at least the packages <span-class="smallcaps">p4est</span>, | ||
| Trilinos, and finally deal.II. In addition there are some |
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| We require at least the packages <span-class="smallcaps">p4est</span>, | |
| Trilinos, and finally deal.II. In addition there are some | |
| We require at least the packages <span-class="smallcaps">p4est</span>, | |
| Trilinos, and finally deal.II. We might require SUNDIALS in future versions. In addition there are some |
gassmoeller
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I am ok with those changes. I have no experience with sundials and in particular not with how often it leads to compile problems. I just tried it and it compiled fine for me, so I guess that is a good omen. |
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It's a C library, so pretty straightforward. And also super fast to compile and install (unlike, for example, Trilinos). |
Our local installation instructions use the default candi.cfg configuration file, which always tries to install opencascade, petsc and other packages, requiring a lot of time and causing more compilation complications than necessary. In addition it does not enable native optimizations. This PR provides a local.cfg file that is better suited for ASPECT use and speeds up the GMG solver significantly for most users (many are not aware of the impact of native optimizations). With this file we also have more control over which deal.II version to suggest for users, the default seems to be the development version of deal.II.