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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ***************************************************************************** * Contents: Native middle-level C interface to LAPACK function cgbrfsx * Author: Intel Corporation *****************************************************************************/ #include "lapacke_utils.h" lapack_int LAPACKE_cgbrfsx_work( int matrix_layout, char trans, char equed, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, const lapack_complex_float* ab, lapack_int ldab, const lapack_complex_float* afb, lapack_int ldafb, const lapack_int* ipiv, const float* r, const float* c, const lapack_complex_float* b, lapack_int ldb, lapack_complex_float* x, lapack_int ldx, float* rcond, float* berr, lapack_int n_err_bnds, float* err_bnds_norm, float* err_bnds_comp, lapack_int nparams, float* params, lapack_complex_float* work, float* rwork ) { lapack_int info = 0; if( matrix_layout == LAPACK_COL_MAJOR ) { /* Call LAPACK function and adjust info */ LAPACK_cgbrfsx( &trans, &equed, &n, &kl, &ku, &nrhs, ab, &ldab, afb, &ldafb, ipiv, r, c, b, &ldb, x, &ldx, rcond, berr, &n_err_bnds, err_bnds_norm, err_bnds_comp, &nparams, params, work, rwork, &info ); if( info < 0 ) { info = info - 1; } } else if( matrix_layout == LAPACK_ROW_MAJOR ) { lapack_int ldab_t = MAX(1,kl+ku+1); lapack_int ldafb_t = MAX(1,2*kl+ku+1); lapack_int ldb_t = MAX(1,n); lapack_int ldx_t = MAX(1,n); lapack_complex_float* ab_t = NULL; lapack_complex_float* afb_t = NULL; lapack_complex_float* b_t = NULL; lapack_complex_float* x_t = NULL; float* err_bnds_norm_t = NULL; float* err_bnds_comp_t = NULL; /* Check leading dimension(s) */ if( ldab < n ) { info = -9; LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info ); return info; } if( ldafb < n ) { info = -11; LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info ); return info; } if( ldb < nrhs ) { info = -16; LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info ); return info; } if( ldx < nrhs ) { info = -18; LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info ); return info; } /* Allocate memory for temporary array(s) */ ab_t = (lapack_complex_float*) LAPACKE_malloc( sizeof(lapack_complex_float) * ldab_t * MAX(1,n) ); if( ab_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_0; } afb_t = (lapack_complex_float*) LAPACKE_malloc( sizeof(lapack_complex_float) * ldafb_t * MAX(1,n) ); if( afb_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_1; } b_t = (lapack_complex_float*) LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,nrhs) ); if( b_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_2; } x_t = (lapack_complex_float*) LAPACKE_malloc( sizeof(lapack_complex_float) * ldx_t * MAX(1,nrhs) ); if( x_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_3; } err_bnds_norm_t = (float*) LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) ); if( err_bnds_norm_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_4; } err_bnds_comp_t = (float*) LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) ); if( err_bnds_comp_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_5; } /* Transpose input matrices */ LAPACKE_cgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t ); LAPACKE_cgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t, ldafb_t ); LAPACKE_cge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t ); LAPACKE_cge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t ); /* Call LAPACK function and adjust info */ LAPACK_cgbrfsx( &trans, &equed, &n, &kl, &ku, &nrhs, ab_t, &ldab_t, afb_t, &ldafb_t, ipiv, r, c, b_t, &ldb_t, x_t, &ldx_t, rcond, berr, &n_err_bnds, err_bnds_norm_t, err_bnds_comp_t, &nparams, params, work, rwork, &info ); if( info < 0 ) { info = info - 1; } /* Transpose output matrices */ LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx ); LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t, nrhs, err_bnds_norm, nrhs ); LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t, nrhs, err_bnds_comp, nrhs ); /* Release memory and exit */ LAPACKE_free( err_bnds_comp_t ); exit_level_5: LAPACKE_free( err_bnds_norm_t ); exit_level_4: LAPACKE_free( x_t ); exit_level_3: LAPACKE_free( b_t ); exit_level_2: LAPACKE_free( afb_t ); exit_level_1: LAPACKE_free( ab_t ); exit_level_0: if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) { LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info ); } } else { info = -1; LAPACKE_xerbla( "LAPACKE_cgbrfsx_work", info ); } return info; }