00001 /***************************************************************************** 00002 Copyright (c) 2010, Intel Corp. 00003 All rights reserved. 00004 00005 Redistribution and use in source and binary forms, with or without 00006 modification, are permitted provided that the following conditions are met: 00007 00008 * Redistributions of source code must retain the above copyright notice, 00009 this list of conditions and the following disclaimer. 00010 * Redistributions in binary form must reproduce the above copyright 00011 notice, this list of conditions and the following disclaimer in the 00012 documentation and/or other materials provided with the distribution. 00013 * Neither the name of Intel Corporation nor the names of its contributors 00014 may be used to endorse or promote products derived from this software 00015 without specific prior written permission. 00016 00017 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 00018 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 00019 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 00020 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 00021 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 00022 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 00023 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 00024 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 00025 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 00026 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 00027 THE POSSIBILITY OF SUCH DAMAGE. 00028 ****************************************************************************** 00029 * Contents: Native middle-level C interface to LAPACK function sstein 00030 * Author: Intel Corporation 00031 * Generated October, 2010 00032 *****************************************************************************/ 00033 00034 #include "lapacke.h" 00035 #include "lapacke_utils.h" 00036 00037 lapack_int LAPACKE_sstein_work( int matrix_order, lapack_int n, const float* d, 00038 const float* e, lapack_int m, const float* w, 00039 const lapack_int* iblock, 00040 const lapack_int* isplit, float* z, 00041 lapack_int ldz, float* work, lapack_int* iwork, 00042 lapack_int* ifailv ) 00043 { 00044 lapack_int info = 0; 00045 if( matrix_order == LAPACK_COL_MAJOR ) { 00046 /* Call LAPACK function and adjust info */ 00047 LAPACK_sstein( &n, d, e, &m, w, iblock, isplit, z, &ldz, work, iwork, 00048 ifailv, &info ); 00049 if( info < 0 ) { 00050 info = info - 1; 00051 } 00052 } else if( matrix_order == LAPACK_ROW_MAJOR ) { 00053 lapack_int ldz_t = MAX(1,n); 00054 float* z_t = NULL; 00055 /* Check leading dimension(s) */ 00056 if( ldz < m ) { 00057 info = -10; 00058 LAPACKE_xerbla( "LAPACKE_sstein_work", info ); 00059 return info; 00060 } 00061 /* Allocate memory for temporary array(s) */ 00062 z_t = (float*)LAPACKE_malloc( sizeof(float) * ldz_t * MAX(1,m) ); 00063 if( z_t == NULL ) { 00064 info = LAPACK_TRANSPOSE_MEMORY_ERROR; 00065 goto exit_level_0; 00066 } 00067 /* Call LAPACK function and adjust info */ 00068 LAPACK_sstein( &n, d, e, &m, w, iblock, isplit, z_t, &ldz_t, work, 00069 iwork, ifailv, &info ); 00070 if( info < 0 ) { 00071 info = info - 1; 00072 } 00073 /* Transpose output matrices */ 00074 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, m, z_t, ldz_t, z, ldz ); 00075 /* Release memory and exit */ 00076 LAPACKE_free( z_t ); 00077 exit_level_0: 00078 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) { 00079 LAPACKE_xerbla( "LAPACKE_sstein_work", info ); 00080 } 00081 } else { 00082 info = -1; 00083 LAPACKE_xerbla( "LAPACKE_sstein_work", info ); 00084 } 00085 return info; 00086 }