MatLMVMAllocate#

Produces all necessary common memory for LMVM approximations based on the solution and function vectors provided. If MatSetSizes() and MatSetUp() have not been called before MatLMVMAllocate(), the allocation will read sizes from the provided vectors and update the matrix.

Synopsis#

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

Input Parameters#

  • B - An LMVM-type matrix

  • X - Solution vector

  • F - Function vector

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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