[Trilinos-Users] How to instantiate Epetra_FECrsMatrix with 2^32 elements

nicola giuliani limmerkate at gmail.com
Wed Jan 25 11:31:13 EST 2017

Dear all,

I am trying to instantiate a Epetra_FECrsMatrix more than 2^32 elements. The program get stuck when building the sparsity pattern (Epetra_FECrsGraph) of such matrix (both in scalar and parallel applications). Is it possible to build such a matrix or is there an issue with the 32 bit indexing of the entries of the matrix itself?

Thank you in advance,

Nicola Giuliani

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