fdrmrc / Polydeal

C++ implementation of Polygonal Discontinuous Galerkin method within the deal.II Finite Element library.
https://fdrmrc.github.io/Polydeal/
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Export to matrix market file format #116

Closed fdrmrc closed 3 months ago

fdrmrc commented 6 months ago

This PR allows to write a Trilinos matrix (eventually distributed) to a Matrix Market format file. It relies on an Epetra I/O utility, see http://docs.trilinos.org/dev/packages/epetraext/doc/html/namespaceEpetraExt.html#ab0877287bad416bde52f5456ba72d50d for a description. A simple test has been added.

@luca-heltai We can use this to export our matrices ($P_l$ and $A$) and plug them into other solvers.