TSSetMatStructure#

sets the relationship between the nonzero structure of the RHS Jacobian matrix to the IJacobian matrix.

Synopsis#

#include "petscts.h"  
PetscErrorCode TSSetMatStructure(TS ts, MatStructure str)

Logically Collective on ts

Input Parameters#

  • ts - the time-stepper

  • str - the structure (the default is UNKNOWN_NONZERO_PATTERN)

Notes#

When the relationship between the nonzero structures is known and supplied the solution process can be much faster

See Also#

MatAXPY(), MatStructure

Level#

intermediate

Location#

src/ts/interface/ts.c


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