lapack_lu_solve_f32

void lapack_lu_solve_f32(const float * LU, const int * ipiv, float * B, int n, int nrhs, int * info)

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Single-precision LU-based linear solve with pre-computed factors.

Given the packed LU factorisation produced by lapack_lu_factor_f32 and its pivot indices, solves $A X = B$ for many right-hand sides without re-factoring. B is overwritten with $X$ .

References

LAPACK sgetrs_.

Parameters

LUconst float*

Packed LU matrix from lapack_lu_factor_f32.

ipivconst int*

1-based pivot indices.

Bfloat*

Row-major

n \times \text{nrhs}

; overwritten by

X

n, nrhsint

System dimensions.

infoint*

LAPACK status word.

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Lucid3.0