I could finally configure dealii using ARPACK. I am facing issues in
initialising the identity matrix that is to be given to the
eigensolver.solve(). I am trying to replace the mass matrix with an
identity matrix..
I am copying the code again in this thread..
std::vector> eigenvalues;
In the documentation of the 9.0.0 package, this is what is installed via spack:
==> 60 installed packages.
-- darwin-highsierra-x86_64 / clang@6.0.0 ---
adol-c@develop gmp@6.1.2matio@1.5.9
ninja@1.8.2 readline@7.0
arpack-ng@3.6.3
Hi Jean,
It turns out that I did not configure dealii with ARPACK. So I followed the
readme instructions and installed and compiled ARPACK as suggested. I also
tried to run the examples in the ARPACK directory and they are running
without any errors. However, when I tried to reconfigure
Hi Jean,
Thanks a lot for your response. I am trying as you suggested. I have added
the following code inside the linear solver so that I can get the
eigenvalues at every newton step.
std::vector> eigenvalues;
std::vector >eigenvectors;
SparseMatrix identity
