Added LAPACKE wrappers for GSVD (complements r1572).

1 files changed, 189 insertions, 0 deletions

diff --git a/LAPACKE/src/lapacke_cggsvp3_work.c b/LAPACKE/src/lapacke_cggsvp3_work.c
new file mode 100644
index 00000000..d532391c
--- /dev/null
+++ b/LAPACKE/src/lapacke_cggsvp3_work.c
@@ -0,0 +1,189 @@
+/*****************************************************************************
+  Copyright (c) 2014, Intel Corp.
+  All rights reserved.
+
+  Redistribution and use in source and binary forms, with or without
+  modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright
+      notice, this list of conditions and the following disclaimer in the
+      documentation and/or other materials provided with the distribution.
+    * Neither the name of Intel Corporation nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+  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 cggsvp3
+* Author: Intel Corporation
+* Generated August, 2015
+*****************************************************************************/
+
+#include "lapacke_utils.h"
+
+lapack_int LAPACKE_cggsvp3_work( int matrix_layout, char jobu, char jobv,
+                                 char jobq, lapack_int m, lapack_int p,
+                                 lapack_int n, lapack_complex_float* a,
+                                 lapack_int lda, lapack_complex_float* b,
+                                 lapack_int ldb, float tola, float tolb,
+                                 lapack_int* k, lapack_int* l,
+                                 lapack_complex_float* u, lapack_int ldu,
+                                 lapack_complex_float* v, lapack_int ldv,
+                                 lapack_complex_float* q, lapack_int ldq,
+                                 lapack_int* iwork, float* rwork,
+                                 lapack_complex_float* tau,
+                                 lapack_complex_float* work, lapack_int lwork )
+{
+    lapack_int info = 0;
+    if( matrix_layout == LAPACK_COL_MAJOR ) {
+        /* Call LAPACK function and adjust info */
+        LAPACK_cggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a, &lda, b, &ldb, &tola,
+                        &tolb, k, l, u, &ldu, v, &ldv, q, &ldq, iwork, rwork,
+                        tau, work, &lwork, &info );
+        if( info < 0 ) {
+            info = info - 1;
+        }
+    } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
+        lapack_int lda_t = MAX(1,m);
+        lapack_int ldb_t = MAX(1,p);
+        lapack_int ldq_t = MAX(1,n);
+        lapack_int ldu_t = MAX(1,m);
+        lapack_int ldv_t = MAX(1,p);
+        lapack_complex_float* a_t = NULL;
+        lapack_complex_float* b_t = NULL;
+        lapack_complex_float* u_t = NULL;
+        lapack_complex_float* v_t = NULL;
+        lapack_complex_float* q_t = NULL;
+        /* Check leading dimension(s) */
+        if( lda < n ) {
+            info = -9;
+            LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
+            return info;
+        }
+        if( ldb < n ) {
+            info = -11;
+            LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
+            return info;
+        }
+        if( ldq < n ) {
+            info = -21;
+            LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
+            return info;
+        }
+        if( ldu < m ) {
+            info = -17;
+            LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
+            return info;
+        }
+        if( ldv < m ) {
+            info = -19;
+            LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
+            return info;
+        }
+        /* Query optimal working array(s) size if requested */
+        if( lwork == -1 ) {
+          LAPACK_cggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a_t, &lda_t, b_t,
+                          &ldb_t, &tola, &tolb, k, l, u_t, &ldu_t, v_t, &ldv_t,
+                          q_t, &ldq_t, iwork, rwork, tau, work, &lwork, &info );
+          return (info < 0) ? (info - 1) : info;
+        }
+        /* Allocate memory for temporary array(s) */
+        a_t = (lapack_complex_float*)
+            LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
+        if( a_t == NULL ) {
+            info = LAPACK_TRANSPOSE_MEMORY_ERROR;
+            goto exit_level_0;
+        }
+        b_t = (lapack_complex_float*)
+            LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
+        if( b_t == NULL ) {
+            info = LAPACK_TRANSPOSE_MEMORY_ERROR;
+            goto exit_level_1;
+        }
+        if( LAPACKE_lsame( jobu, 'u' ) ) {
+            u_t = (lapack_complex_float*)
+                LAPACKE_malloc( sizeof(lapack_complex_float) *
+                                ldu_t * MAX(1,m) );
+            if( u_t == NULL ) {
+                info = LAPACK_TRANSPOSE_MEMORY_ERROR;
+                goto exit_level_2;
+            }
+        }
+        if( LAPACKE_lsame( jobv, 'v' ) ) {
+            v_t = (lapack_complex_float*)
+                LAPACKE_malloc( sizeof(lapack_complex_float) *
+                                ldv_t * MAX(1,m) );
+            if( v_t == NULL ) {
+                info = LAPACK_TRANSPOSE_MEMORY_ERROR;
+                goto exit_level_3;
+            }
+        }
+        if( LAPACKE_lsame( jobq, 'q' ) ) {
+            q_t = (lapack_complex_float*)
+                LAPACKE_malloc( sizeof(lapack_complex_float) *
+                                ldq_t * MAX(1,n) );
+            if( q_t == NULL ) {
+                info = LAPACK_TRANSPOSE_MEMORY_ERROR;
+                goto exit_level_4;
+            }
+        }
+        /* Transpose input matrices */
+        LAPACKE_cge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
+        LAPACKE_cge_trans( matrix_layout, p, n, b, ldb, b_t, ldb_t );
+        /* Call LAPACK function and adjust info */
+        LAPACK_cggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a_t, &lda_t, b_t,
+                        &ldb_t, &tola, &tolb, k, l, u_t, &ldu_t, v_t, &ldv_t,
+                        q_t, &ldq_t, iwork, rwork, tau, work, &lwork, &info );
+        if( info < 0 ) {
+            info = info - 1;
+        }
+        /* Transpose output matrices */
+        LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
+        LAPACKE_cge_trans( LAPACK_COL_MAJOR, p, n, b_t, ldb_t, b, ldb );
+        if( LAPACKE_lsame( jobu, 'u' ) ) {
+            LAPACKE_cge_trans( LAPACK_COL_MAJOR, m, m, u_t, ldu_t, u, ldu );
+        }
+        if( LAPACKE_lsame( jobv, 'v' ) ) {
+            LAPACKE_cge_trans( LAPACK_COL_MAJOR, p, m, v_t, ldv_t, v, ldv );
+        }
+        if( LAPACKE_lsame( jobq, 'q' ) ) {
+            LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
+        }
+        /* Release memory and exit */
+        if( LAPACKE_lsame( jobq, 'q' ) ) {
+            LAPACKE_free( q_t );
+        }
+exit_level_4:
+        if( LAPACKE_lsame( jobv, 'v' ) ) {
+            LAPACKE_free( v_t );
+        }
+exit_level_3:
+        if( LAPACKE_lsame( jobu, 'u' ) ) {
+            LAPACKE_free( u_t );
+        }
+exit_level_2:
+        LAPACKE_free( b_t );
+exit_level_1:
+        LAPACKE_free( a_t );
+exit_level_0:
+        if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
+            LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
+        }
+    } else {
+        info = -1;
+        LAPACKE_xerbla( "LAPACKE_cggsvp3_work", info );
+    }
+    return info;
+}