petsc-3.10.2 2018-10-09
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MatSymBrdnSetDelta

Sets the starting value for the diagonal scaling vector computed in the SymBrdn approximations (also works for BFGS and DFP).

Synopsis

#include "petscksp.h" 
PetscErrorCode MatSymBrdnSetDelta(Mat B, PetscScalar delta)

Input Parameters

B - LMVM matrix
delta - initial value for diagonal scaling

Level

intermediate

Location

src/ksp/ksp/utils/lmvm/symbrdn/symbrdn.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages