Distribution classes

Distributed vectors

Distributed matrices

• Parametrizable with non-distributed matrix class

• Parametrizable with two distribution classes

Distributed vector inserter

• Values can be inserted with global indices

• Local entries are inserted directly and remote values communicated at the end of the insertion phase (when the inserter object is destroyed)

• Parametrizable with update function

Distributed matrix inserter

• Same features as distributed vector inserter

• At the end of insertion buffers for distributed matrix vector product are prepared (like in PETSc)

• No exact information on quantity and location of non-zero entries are needed (opposed to PETSc), only the single filling parameter for the local matrix inserter

Generic block preconditioner, provides distributed

• Diagonal

• ILU(0)

• IC(0)

Migration classes: distribution

• Currently only implemented from block to block distribution

• Extreme easy usage in constructors:

• Reverse migration. For instance to map results back to original indexing from FEM tool

Single output stream

•  For instance

  sout << “Matrix A is\n” << A << “v is “ << v << ‘\n’;

  prints matrix A and vector v only once

• Works also with distributed matrices and vectors

• Can be used for file output as well

Multiple output stream

• For instance

  mout << “alpha is “ << alpha << ‘\n’;

  prints a message for each processor with processor number