MatLMVMAllocate#

Produces all necessary common memory for LMVM approximations based on the solution and function vectors provided.

Synopsis#

#include "petscksp.h" 
PetscErrorCode MatLMVMAllocate(Mat B, Vec X, Vec F)

Input Parameters#

  • B - A MATLMVM matrix

  • X - Solution vector

  • F - Function vector

Note#

If MatSetSizes() and MatSetUp() have not been called before MatLMVMAllocate(), the allocation will read sizes from the provided vectors and update the matrix.

See Also#

KSP: Linear System Solvers, LMVM Matrices, MATLMVM, MatLMVMReset(), MatLMVMUpdate()

Level#

intermediate

Location#

src/ksp/ksp/utils/lmvm/lmvmutils.c

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