This matrix inherits from MATMPIAIJ. As a result, MatMPIAIJSetPreallocation is supported for this matrix type. One can also call MatConvert for an inplace conversion to or from the MATMPIAIJ type without data copy.

Consult Spooles documentation for more information about the options database keys below.

-mat_type mpiaijspooles | - sets the matrix type to "mpiaijspooles" during a call to MatSetFromOptions() | |

-mat_spooles_tau <tau> | - upper bound on the magnitude of the largest element in L or U | |

-mat_spooles_seed <seed> | - random number seed used for ordering | |

-mat_spooles_msglvl <msglvl> | - message output level | |

-mat_spooles_ordering <BestOfNDandMS,MMD,MS,ND> | - ordering used | |

-mat_spooles_maxdomainsize <n> | - maximum subgraph size used by Spooles orderings | |

-mat_spooles_maxzeros <n> | - maximum number of zeros inside a supernode | |

-mat_spooles_maxsize <n> | - maximum size of a supernode | |

-mat_spooles_FrontMtxInfo <true,fase> | - print Spooles information about the computed factorization | |

-mat_spooles_symmetryflag <0,1,2> | - 0: SPOOLES_SYMMETRIC, 1: SPOOLES_HERMITIAN, 2: SPOOLES_NONSYMMETRIC | |

-mat_spooles_patchAndGoFlag <0,1,2> | - 0: no patch, 1: use PatchAndGo strategy 1, 2: use PatchAndGo strategy 2 | |

-mat_spooles_toosmall <dt> | - drop tolerance for PatchAndGo strategy 1 | |

-mat_spooles_storeids <bool integer> | - if nonzero, stores row and col numbers where patches were applied in an IV object | |

-mat_spooles_fudge <delta> | - fudge factor for rescaling diagonals with PatchAndGo strategy 2 | |

-mat_spooles_storevalues <bool integer> | - if nonzero and PatchAndGo strategy 2 is used, store change in diagonal value in a DV object |

** Level:beginner
Location:**src/mat/impls/aij/mpi/spooles/mpispooles.c

Index of all Mat routines

Table of Contents for all manual pages

Index of all manual pages