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pardiso

The pardiso solver supports the following input types.

  • data type: DSZC
  • index type: std::int32_t, std::int64_t

Solver Options

There are two ways to configure the solver.

Member Methods

The operator() operator provides access to iparm array. There are explicitly named memeber methods, which give the same functionality.

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solver(26) = 1;
solver.iparm_matrix_checker(1);

When using the explicit methods, it is possible to chain multiple methods together.

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solver.iparm_matrix_checker(1).iparm_iterative_refinement(2);

Verbose String Arguments

The pardiso.parser.hpp provides a parsing function. Setting parameters can be done via the following.

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#include <ezp/pardiso.parser.hpp>

pardiso_set("--matrix-checker 1 --iterative-refinement 2", solver);

All available options are listed as follows.

Text Only
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Usage: [--default-value INT] [--reducing-ordering INT] [--user-permutation INT] [--iterative-refinement INT] [--pivoting-perturbation INT] [--scaling INT] [--transpose-matrix INT] [--weighted-matching INT] [--nnz-factor INT] [--pivoting-type INT] [--matrix-checker INT] [--partial-solve INT] [--zero-based-indexing INT] [--schur-complement INT] [--out-of-core INT]

Optional arguments:
  --default-value INT          [0] Use default values. [default: 0]
  --reducing-ordering INT      [1] Fill-in reducing ordering for the input matrix. [default: 2]
  --user-permutation INT       [4] User permutation. [default: 0]
  --iterative-refinement INT   [7] Iterative refinement step. [default: 0]
  --pivoting-perturbation INT  [9] Pivoting perturbation.
  --scaling INT                [10] Scaling vectors. [default: 1]
  --transpose-matrix INT       [11] Solve with transposed or conjugate transposed matrix A. [default: 0]
  --weighted-matching INT      [12] Improved accuracy using (non-)symmetric weighted matching. [default: 1]
  --nnz-factor INT             [17] Report the number of non-zero elements in the factors. [default: -1]
  --pivoting-type INT          [20] Pivoting for symmetric indefinite matrices. [default: 1]
  --matrix-checker INT         [26] Matrix checker. [default: 0]
  --partial-solve INT          [30] Partial solve and computing selected components of the solution vectors. [default: 0]
  --zero-based-indexing INT    [34] One- or zero-based indexing of columns and rows. [default: 0]
  --schur-complement INT       [35] Schur complement matrix computation control. [default: 0]
  --out-of-core INT            [59] Solver mode. [default: 0]