MatCreateLMVMDQN#

Creates a dense representation of the limited-memory Quasi-Newton approximation to a Hessian.

Synopsis#

#include "petscksp.h" 
PetscErrorCode MatCreateLMVMDQN(MPI_Comm comm, PetscInt n, PetscInt N, Mat *B)

Collective

Input Parameters#

comm - MPI communicator
n - number of local rows for storage vectors
N - global size of the storage vectors

Output Parameter#

B - the matrix

Note#

It is recommended that one use the MatCreate(), MatSetType() and/or MatSetFromOptions() paradigm instead of this routine directly.

See Also#

MatCreate(), MATLMVM, MATLMVMDBFGS, MATLMVMDDFP, MatCreateLMVMDDFP(), MatCreateLMVMDBFGS()

Level#

advanced

Location#

src/ksp/ksp/utils/lmvm/dense/denseqn.c

Index of all KSP routines
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Index of all manual pages