This matrix inherits from MATSEQAIJ. As a result, MatSeqAIJSetPreallocation is supported for this matrix type. One can also call MatConvert for an inplace conversion to or from the MATSEQAIJ type without data copy.
Consult UMFPACK documentation for more information about the Control parameters which correspond to the options database keys below.
-mat_type umfpack | - sets the matrix type to "umfpack" during a call to MatSetFromOptions() | |
-mat_umfpack_prl | - UMFPACK print level: Control[UMFPACK_PRL] | |
-mat_umfpack_dense_col <alpha_c> | - UMFPACK dense column threshold: Control[UMFPACK_DENSE_COL] | |
-mat_umfpack_block_size <bs> | - UMFPACK block size for BLAS-Level 3 calls: Control[UMFPACK_BLOCK_SIZE] | |
-mat_umfpack_pivot_tolerance <delta> | - UMFPACK partial pivot tolerance: Control[UMFPACK_PIVOT_TOLERANCE] | |
-mat_umfpack_alloc_init <delta> | - UMFPACK factorized matrix allocation modifier: Control[UMFPACK_ALLOC_INIT] | |
-mat_umfpack_irstep <maxit> | - UMFPACK maximum number of iterative refinement steps: Control[UMFPACK_IRSTEP] |
Level:beginner
Location:src/mat/impls/aij/seq/umfpack/umfpack.c
Index of all Mat routines
Table of Contents for all manual pages
Index of all manual pages