MatLMVMReset#
Flushes all of the accumulated updates out of the MATLMVM approximation.
Synopsis#
#include "petscksp.h"
PetscErrorCode MatLMVMReset(Mat B, PetscBool destructive)
Input Parameters#
B - A
MATLMVMmatrixdestructive - flag for enabling destruction of data structures
Note#
In practice, this will not actually
destroy the data associated with the updates. It simply resets
counters, which leads to existing data being overwritten, and
MatSolve() being applied as if there are no updates. A boolean
flag is available to force destruction of the update vectors.
If the user has provided another LMVM matrix as J0, the J0 matrix is also reset in this function.
See Also#
KSP: Linear System Solvers, LMVM Matrices, MATLMVM, MatLMVMAllocate(), MatLMVMUpdate()
Level#
intermediate
Location#
src/ksp/ksp/utils/lmvm/lmvmutils.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages