Hello, I am trying to compile DEAL.II on a server. There is no error in the
compilation, but when I try to run an example, segmentation fault occurs.
I create a environment by conda, in this environment, I installed
gcc, gxx， gfortan, make, cmake, lapack, blas, scalapack, petsc, symengine
I also
On 12/29/23 11:39, Simon Wiesheier wrote:
For efficiency reasons, I decided to loop manually over the rows I am
interested in.
In a serial program, that worked smoothly. But if I get the gist of your
message, vmult and extracting the relevant elements is the only way to do this
in parallel, r
Yes, basically I want to compute a matrix-vector product.
But if my system has say 500k DoFs, I only need say 1k elements of the
result of vmult, because the number of rows I am interested in is quite
small -- they correspond to a small set of DoFs living on the boundary.
For efficiency reasons, I
On 12/28/23 12:22, Simon wrote:
I want to build the scalar product between rows of a
TrilinosWrappers::SparseMatrix and a TrilinosWrappers::MPI::Vector.
This sounds like you're computing a matrix-vector product -- the dot products
you compute are the elements of the resulting vector.
As you
