Package jdistlib.accelerator

Interface PreparedSparseCholesky

All Superinterfaces:
AutoCloseable
public interface PreparedSparseCholesky extends AutoCloseable
Symbolically analyzed FP64 sparse Cholesky handle with reusable numeric factors.

  • Method Summary

    Modifier and Type
    Method
    Description
    void
    close()
     
    int
    dimension()
     
    int
    factorNonzeroCount()
    Number of entries in the current lower Cholesky factor.
    double
    logDeterminant()
     
    int[]
    permutation()
    Returns the new-to-original permutation, or an empty array when provider-owned.
    void
    refactor(CsrMatrix matrix)
    Replaces only numerical values; the authoritative-triangle structure must match.
    default double[]
    solve(double[] right)
     
    default double[]
    solve(double[] right, int columns)
     
    void
    solveInPlace(double[] right, int columns)
    Replaces a row-major dimension-by-columns right side with its solution.
    int
    structuralNonzeroCount()
    Number of unique entries in the authoritative input triangle.

  • Method Details

    • dimension

      int dimension()

    • structuralNonzeroCount

      int structuralNonzeroCount()
      Number of unique entries in the authoritative input triangle.

    • factorNonzeroCount

      int factorNonzeroCount()
      Number of entries in the current lower Cholesky factor.

    • permutation

      int[] permutation()
      Returns the new-to-original permutation, or an empty array when provider-owned.

    • logDeterminant

      double logDeterminant()

    • refactor

      void refactor(CsrMatrix matrix)
      Replaces only numerical values; the authoritative-triangle structure must match.

    • solveInPlace

      void solveInPlace(double[] right, int columns)
      Replaces a row-major dimension-by-columns right side with its solution.

    • solve

      default double[] solve(double[] right)

    • solve

      default double[] solve(double[] right, int columns)

    • close

      void close()
      Specified by:
      close in interface AutoCloseable