Developer Reference
Intel® oneAPI Math Kernel Library LAPACK Examples
ID
766877
Date
3/22/2024
Public
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Visible to Intel only — GUID: GUID-CDF640BA-ACBC-4021-8A2F-359146EF50F8
?gelsd function
Computes the minimum-norm solution to a linear least squares problem using the singular value decomposition of A and a divide and conquer method.
NOTE:
For a detailed description and reference information on this function, see the Intel® oneAPI Math Kernel Library Developer Reference.
Fortran-77 Interface
Calling from Fortran:
call sgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, iwork, info) call dgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, iwork, info) call cgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, rwork, iwork, info) call zgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, rwork, iwork, info)
Calling from C:
sgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, iwork, info); dgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, iwork, info); cgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, rwork, iwork, info); zgelsd(m, n, nrhs, a, lda, b, ldb, s, rcond, rank, work, lwork, rwork, iwork, info);
C Interface
lapack_int LAPACKE_sgelsd(int matrix_layout, lapack_int m, lapack_int n, lapack_int nrhs, float* a, lapack_int lda, float* b, lapack_int ldb, float* s, float rcond, lapack_int* rank); lapack_int LAPACKE_dgelsd(int matrix_layout, lapack_int m, lapack_int n, lapack_int nrhs, double* a, lapack_int lda, double* b, lapack_int ldb, double* s, double rcond, lapack_int* rank); lapack_int LAPACKE_cgelsd(int matrix_layout, lapack_int m, lapack_int n, lapack_int nrhs, lapack_complex_float* a, lapack_int lda, lapack_complex_float* b, lapack_int ldb, float* s, float rcond, lapack_int* rank); lapack_int LAPACKE_zgelsd(int matrix_layout, lapack_int m, lapack_int n, lapack_int nrhs, lapack_complex_double* a, lapack_int lda, lapack_complex_double* b, lapack_int ldb, double* s, double rcond, lapack_int* rank);
Parent topic: Linear Least Squares (LLS) Problems