129 lines
4.3 KiB
C
129 lines
4.3 KiB
C
/*********************************************************************/
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/* Copyright 2009, 2010 The University of Texas at Austin. */
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/* All rights reserved. */
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/* */
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/* Redistribution and use in source and binary forms, with or */
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/* without modification, are permitted provided that the following */
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/* conditions are met: */
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/* */
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/* 1. Redistributions of source code must retain the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer. */
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/* */
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/* 2. Redistributions in binary form must reproduce the above */
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/* copyright notice, this list of conditions and the following */
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/* disclaimer in the documentation and/or other materials */
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/* provided with the distribution. */
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/* */
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/* THIS SOFTWARE IS PROVIDED BY THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, */
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/* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF */
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/* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE */
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/* DISCLAIMED. IN NO EVENT SHALL THE UNIVERSITY OF TEXAS AT */
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/* AUSTIN OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, */
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/* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES */
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/* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE */
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/* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR */
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/* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF */
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/* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT */
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/* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT */
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/* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE */
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/* POSSIBILITY OF SUCH DAMAGE. */
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/* */
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/* The views and conclusions contained in the software and */
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/* documentation are those of the authors and should not be */
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/* interpreted as representing official policies, either expressed */
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/* or implied, of The University of Texas at Austin. */
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/*********************************************************************/
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#include <stdio.h>
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#include "common.h"
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#ifdef FUNCTION_PROFILE
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#include "functable.h"
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#endif
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#ifdef XDOUBLE
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#define ERROR_NAME "XPOTF2"
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#elif defined(DOUBLE)
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#define ERROR_NAME "ZPOTF2"
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#else
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#define ERROR_NAME "CPOTF2"
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#endif
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static blasint (*potf2[])(blas_arg_t *, BLASLONG *, BLASLONG *, FLOAT *, FLOAT *, BLASLONG) = {
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#ifdef XDOUBLE
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xpotf2_U, xpotf2_L,
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#elif defined(DOUBLE)
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zpotf2_U, zpotf2_L,
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#else
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cpotf2_U, cpotf2_L,
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#endif
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};
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int NAME(char *UPLO, blasint *N, FLOAT *a, blasint *ldA, blasint *Info){
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blas_arg_t args;
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blasint uplo_arg = *UPLO;
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blasint uplo;
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blasint info;
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FLOAT *buffer;
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#ifdef PPC440
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extern
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#endif
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FLOAT *sa, *sb;
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PRINT_DEBUG_NAME;
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args.n = *N;
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args.a = (void *)a;
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args.lda = *ldA;
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TOUPPER(uplo_arg);
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uplo = -1;
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if (uplo_arg == 'U') uplo = 0;
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if (uplo_arg == 'L') uplo = 1;
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info = 0;
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if (args.lda < MAX(1,args.n)) info = 4;
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if (args.n < 0) info = 2;
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if (uplo < 0) info = 1;
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if (info) {
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BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
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*Info = - info;
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return 0;
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}
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*Info = 0;
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if (args.n <= 0) return 0;
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IDEBUG_START;
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FUNCTION_PROFILE_START();
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#ifndef PPC440
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buffer = (FLOAT *)blas_memory_alloc(1);
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sa = (FLOAT *)((BLASLONG)buffer + GEMM_OFFSET_A);
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sb = (FLOAT *)(((BLASLONG)sa + ((GEMM_P * GEMM_Q * COMPSIZE * SIZE + GEMM_ALIGN) & ~GEMM_ALIGN)) + GEMM_OFFSET_B);
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#endif
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info = (potf2[uplo])(&args, NULL, NULL, sa, sb, 0);
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*Info = info;
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#ifndef PPC440
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blas_memory_free(buffer);
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#endif
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FUNCTION_PROFILE_END(1, .5 * args.n * args.n,
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2. * args.n * (1./3. + args.n * ( 1./2. + args.n * 1./6.))
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+ 6. * 1./6. * args.n * (args.n * args.n - 1));
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IDEBUG_END;
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return 0;
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}
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