MatLMVMSetHistorySize#
Set the number of past iterates to be stored for the construction of the limited-memory quasi-Newton update.
Synopsis#
#include "petscksp.h" 
PetscErrorCode MatLMVMSetHistorySize(Mat B, PetscInt hist_size)
Input Parameters#
- B - A - MATLMVMmatrix
- hist_size - number of past iterates (default 5) 
Options Database Key#
- -mat_lmvm_hist_size - - set number of past iterates
See Also#
KSP: Linear System Solvers, LMVM Matrices, MATLMVM, MatLMVMGetUpdateCount()
Level#
beginner
Location#
src/ksp/ksp/utils/lmvm/lmvmutils.c
Index of all KSP routines
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Index of all manual pages