DMTSCreateRHSMassMatrixLumped

This creates the lumped mass matrix associated with the given DM, and a solver to invert it, and stores them in the DM context.

Synopsis

#include "petscts.h" 
PetscErrorCode DMTSCreateRHSMassMatrixLumped(DM dm)

Collective

Input Parameter

• dm - DM providing the mass matrix

Note

The idea here is that an explicit system can be given a mass matrix, based on the DM, which is inverted on the RHS at each step. Since the matrix is lumped, inversion is trivial.

See Also

TS: Scalable ODE and DAE Solvers, DM, DMTSCreateRHSMassMatrix(), DMTSDestroyRHSMassMatrix(), DMCreateMassMatrix(), DMTS

Level

developer

Location

src/ts/utils/dmlocalts.c

Examples

src/ts/tutorials/ex45.c

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