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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 sorcsd2by1 * Author: Intel Corporation *****************************************************************************/ #include "lapacke_utils.h" lapack_int LAPACKE_sorcsd2by1_work( int matrix_layout, char jobu1, char jobu2, char jobv1t, lapack_int m, lapack_int p, lapack_int q, float* x11, lapack_int ldx11, float* x21, lapack_int ldx21, float* theta, float* u1, lapack_int ldu1, float* u2, lapack_int ldu2, float* v1t, lapack_int ldv1t, float* work, lapack_int lwork, lapack_int* iwork ) { lapack_int info = 0; if( matrix_layout == LAPACK_COL_MAJOR ) { /* Call LAPACK function and adjust info */ LAPACK_sorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p, &q, x11, &ldx11, x21, &ldx21, theta, u1, &ldu1, u2, &ldu2, v1t, &ldv1t, work, &lwork, iwork, &info ); if( info < 0 ) { info = info - 1; } } else if( matrix_layout == LAPACK_ROW_MAJOR ) { lapack_int nrows_x11 = p; lapack_int nrows_x21 = m-p; lapack_int nrows_u1 = ( LAPACKE_lsame( jobu1, 'y' ) ? p : 1); lapack_int nrows_u2 = ( LAPACKE_lsame( jobu2, 'y' ) ? m-p : 1); lapack_int nrows_v1t = ( LAPACKE_lsame( jobv1t, 'y' ) ? q : 1); lapack_int ldu1_t = MAX(1,nrows_u1); lapack_int ldu2_t = MAX(1,nrows_u2); lapack_int ldv1t_t = MAX(1,nrows_v1t); lapack_int ldx11_t = MAX(1,nrows_x11); lapack_int ldx21_t = MAX(1,nrows_x21); float* x11_t = NULL; float* x21_t = NULL; float* u1_t = NULL; float* u2_t = NULL; float* v1t_t = NULL; /* Check leading dimension(s) */ if( ldu1 < p ) { info = -21; LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info ); return info; } if( ldu2 < m-p ) { info = -23; LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info ); return info; } if( ldv1t < q ) { info = -25; LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info ); return info; } if( ldx11 < q ) { info = -12; LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info ); return info; } if( ldx21 < q ) { info = -16; LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info ); return info; } /* Query optimal working array(s) size if requested */ if( lwork == -1 ) { LAPACK_sorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p, &q, x11, &ldx11_t, x21, &ldx21_t, theta, u1, &ldu1_t, u2, &ldu2_t, v1t, &ldv1t_t, work, &lwork, iwork, &info ); return (info < 0) ? (info - 1) : info; } /* Allocate memory for temporary array(s) */ x11_t = (float*)LAPACKE_malloc( sizeof(float) * ldx11_t * MAX(1,q) ); if( x11_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_0; } x21_t = (float*)LAPACKE_malloc( sizeof(float) * ldx21_t * MAX(1,q) ); if( x21_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_1; } if( LAPACKE_lsame( jobu1, 'y' ) ) { u1_t = (float*) LAPACKE_malloc( sizeof(float) * ldu1_t * MAX(1,p) ); if( u1_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_2; } } if( LAPACKE_lsame( jobu2, 'y' ) ) { u2_t = (float*) LAPACKE_malloc( sizeof(float) * ldu2_t * MAX(1,m-p) ); if( u2_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_3; } } if( LAPACKE_lsame( jobv1t, 'y' ) ) { v1t_t = (float*) LAPACKE_malloc( sizeof(float) * ldv1t_t * MAX(1,q) ); if( v1t_t == NULL ) { info = LAPACK_TRANSPOSE_MEMORY_ERROR; goto exit_level_4; } } /* Transpose input matrices */ LAPACKE_sge_trans( matrix_layout, nrows_x11, q, x11, ldx11, x11_t, ldx11_t ); LAPACKE_sge_trans( matrix_layout, nrows_x21, q, x21, ldx21, x21_t, ldx21_t ); /* Call LAPACK function and adjust info */ LAPACK_sorcsd2by1( &jobu1, &jobu2, &jobv1t, &m, &p, &q, x11_t, &ldx11_t, x21_t, &ldx21_t, theta, u1_t, &ldu1_t, u2_t, &ldu2_t, v1t_t, &ldv1t_t, work, &lwork, iwork, &info ); if( info < 0 ) { info = info - 1; } /* Transpose output matrices */ LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_x11, q, x11_t, ldx11_t, x11, ldx11 ); LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_x21, q, x21_t, ldx21_t, x21, ldx21 ); if( LAPACKE_lsame( jobu1, 'y' ) ) { LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_u1, p, u1_t, ldu1_t, u1, ldu1 ); } if( LAPACKE_lsame( jobu2, 'y' ) ) { LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_u2, m-p, u2_t, ldu2_t, u2, ldu2 ); } if( LAPACKE_lsame( jobv1t, 'y' ) ) { LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrows_v1t, q, v1t_t, ldv1t_t, v1t, ldv1t ); } /* Release memory and exit */ if( LAPACKE_lsame( jobv1t, 'y' ) ) { LAPACKE_free( v1t_t ); } exit_level_4: if( LAPACKE_lsame( jobu2, 'y' ) ) { LAPACKE_free( u2_t ); } exit_level_3: if( LAPACKE_lsame( jobu1, 'y' ) ) { LAPACKE_free( u1_t ); } exit_level_2: LAPACKE_free( x21_t ); exit_level_1: LAPACKE_free( x11_t ); exit_level_0: if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) { LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info ); } } else { info = -1; LAPACKE_xerbla( "LAPACKE_sorcsd2by1_work", info ); } return info; }