[petsc-users] Serial solution of system in MPI FEM application

Ivano Barletta ivano.barletta at cmcc.it
Fri Apr 16 08:45:57 CDT 2021

Dear all,

I have an MPI FEM application with an elliptic problem that I
solve with PETSc. For debugging purposes I want to
let the master process to solve the global system.

Is there any simple way in PETSc to gather the distributed matrix
(the type is MATMPIAIJ) on a single MPI process?

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