Re: [Libmesh-users] make check Error: Solver is unknown.

[<ed...@op...>]

> Hmm... it seems to me that you should not hit exactly this error 
> because of
> this logic:
> 
>   // check that we have the required solver:
>   std::string solver;
>   solver = input.next(solver);
>   if (solver == "mumps")
>   {
> #ifndef LIBMESH_PETSC_HAVE_MUMPS
>     libmesh_example_requires(false, "PETSc compiled with MUMPS 
> support");
> #endif
>   }
>   else if (solver == "superlu")
>   {
> #ifndef LIBMESH_PETSC_HAVE_SUPERLU_DIST
>     libmesh_example_requires(false, "PETSc compiled with SuperLU 
> support");
> #endif
>   }
>   else
>   {
>      libMesh::err << "Error: Solver " << solver << " is unknown."
>                   << std::endl;
>      return 1;
>   }
> 
> i.e. you should hit the "libmesh_example_requires" in the first 
> if-block.
> But perhaps you are using an older version of libmesh which doesn't 
> have
> this check.
> 
> Either way, it's not fatal error with your libmesh build, just an 
> example
> that requires a specific solver that you don't have in your build of 
> PETSc.

Thank you for your answer, John. I am using v1.5.1 (as suggested on 
another e-mail). How do I set flags to configure with MUMPS? Does  
--enable-mumps  work? Thank you! Have nice holidays :) .

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