MatLMVMMultAlgorithm#

The type of algorithm used for matrix-vector products and solves used internally by a MatLMVM matrix

Synopsis#

typedef enum {
  MAT_LMVM_MULT_RECURSIVE,
  MAT_LMVM_MULT_DENSE,
  MAT_LMVM_MULT_COMPACT_DENSE,
} MatLMVMMultAlgorithm;

Values#

MAT_LMVM_MULT_RECURSIVE - Use recursive formulas for products and solves
MAT_LMVM_MULT_DENSE - Use dense formulas for products and solves when possible
MAT_LMVM_MULT_COMPACT_DENSE - The same as MATLMVM_MULT_DENSE, but go further and ensure products and solves are computed in compact low-rank update form

Options Database Keys#

-mat_lmvm_mult_algorithm - the algorithm to use for multiplication (recursive, dense, compact_dense)

See Also#

Matrices, MatLMVM, MatLMVMSetMultAlgorithm(), MatLMVMGetMultAlgorithm()

Level#

advanced

Location#

include/petscksp.h

Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages