mirror of
https://github.com/lucaspalomodevelop/meshlab.git
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181 lines
4.1 KiB
C
181 lines
4.1 KiB
C
/*********************************************************************/
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/* */
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/* Optimized BLAS libraries */
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/* By Kazushige Goto <kgoto@tacc.utexas.edu> */
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/* */
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/* Copyright (c) The University of Texas, 2009. All rights reserved. */
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/* UNIVERSITY EXPRESSLY DISCLAIMS ANY AND ALL WARRANTIES CONCERNING */
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/* THIS SOFTWARE AND DOCUMENTATION, INCLUDING ANY WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR ANY PARTICULAR PURPOSE, */
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/* NON-INFRINGEMENT AND WARRANTIES OF PERFORMANCE, AND ANY WARRANTY */
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/* THAT MIGHT OTHERWISE ARISE FROM COURSE OF DEALING OR USAGE OF */
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/* TRADE. NO WARRANTY IS EITHER EXPRESS OR IMPLIED WITH RESPECT TO */
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/* THE USE OF THE SOFTWARE OR DOCUMENTATION. */
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/* Under no circumstances shall University be liable for incidental, */
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/* special, indirect, direct or consequential damages or loss of */
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/* profits, interruption of business, or related expenses which may */
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/* arise from use of Software or Documentation, including but not */
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/* limited to those resulting from defects in Software and/or */
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/* Documentation, or loss or inaccuracy of data of any kind. */
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/*********************************************************************/
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#include <stdio.h>
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#include <ctype.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 "QSPR "
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#elif defined(DOUBLE)
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#define ERROR_NAME "DSPR "
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#else
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#define ERROR_NAME "SSPR "
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#endif
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static int (*spr[])(BLASLONG, FLOAT, FLOAT *, BLASLONG, FLOAT *, FLOAT *) = {
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#ifdef XDOUBLE
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qspr_U, qspr_L,
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#elif defined(DOUBLE)
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dspr_U, dspr_L,
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#else
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sspr_U, sspr_L,
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#endif
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};
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#ifdef SMP
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static int (*spr_thread[])(BLASLONG, FLOAT, FLOAT *, BLASLONG, FLOAT *, FLOAT *, int) = {
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#ifdef XDOUBLE
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qspr_thread_U, qspr_thread_L,
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#elif defined(DOUBLE)
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dspr_thread_U, dspr_thread_L,
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#else
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sspr_thread_U, sspr_thread_L,
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#endif
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};
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#endif
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#ifndef CBLAS
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void NAME(char *UPLO, blasint *N, FLOAT *ALPHA,
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FLOAT *x, blasint *INCX, FLOAT *a){
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char uplo_arg = *UPLO;
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blasint n = *N;
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FLOAT alpha = *ALPHA;
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blasint incx = *INCX;
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blasint info;
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int uplo;
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FLOAT *buffer;
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#ifdef SMP
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int nthreads;
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#endif
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PRINT_DEBUG_NAME;
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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 (incx == 0) info = 5;
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if (n < 0) info = 2;
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if (uplo < 0) info = 1;
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if (info != 0) {
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BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
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return;
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}
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#else
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void CNAME(enum CBLAS_ORDER order,
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enum CBLAS_UPLO Uplo,
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blasint n,
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FLOAT alpha,
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FLOAT *x, blasint incx,
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FLOAT *a) {
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FLOAT *buffer;
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int uplo;
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blasint info;
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#ifdef SMP
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int nthreads;
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#endif
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PRINT_DEBUG_CNAME;
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uplo = -1;
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info = 0;
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if (order == CblasColMajor) {
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if (Uplo == CblasUpper) uplo = 0;
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if (Uplo == CblasLower) uplo = 1;
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info = -1;
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if (incx == 0) info = 5;
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if (n < 0) info = 2;
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if (uplo < 0) info = 1;
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}
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if (order == CblasRowMajor) {
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if (Uplo == CblasUpper) uplo = 1;
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if (Uplo == CblasLower) uplo = 0;
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info = -1;
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if (incx == 0) info = 5;
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if (n < 0) info = 2;
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if (uplo < 0) info = 1;
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}
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if (info >= 0) {
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BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
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return;
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}
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#endif
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if (n == 0) return;
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if (alpha == ZERO) return;
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IDEBUG_START;
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FUNCTION_PROFILE_START();
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if (incx < 0 ) x -= (n - 1) * incx;
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buffer = (FLOAT *)blas_memory_alloc(1);
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#ifdef SMP
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nthreads = num_cpu_avail(2);
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if (nthreads == 1) {
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#endif
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(spr[uplo])(n, alpha, x, incx, a, buffer);
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#ifdef SMP
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} else {
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(spr_thread[uplo])(n, alpha, x, incx, a, buffer, nthreads);
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}
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#endif
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blas_memory_free(buffer);
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FUNCTION_PROFILE_END(1, n * n / 2 + n, n * n);
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IDEBUG_END;
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return;
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}
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