atl_syrk_t.c

来自「基于Blas CLapck的.用过的人知道是干啥的」· C语言 代码 · 共 68 行

/*
 *             Automatically Tuned Linear Algebra Software v3.8.0
 *                    (C) Copyright 1997 R. Clint Whaley
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *   2. 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.
 *   3. The name of the ATLAS group or the names of its contributers may
 *      not be used to endorse or promote products derived from this
 *      software without specific 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 ATLAS GROUP OR ITS 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.
 *
 */
#include "atlas_kern3.h"

#define syr_put Mjoin(Mjoin(PATL,trput),UploNM)
void Mjoin(Mjoin(Mjoin(PATL,syrk),UploNM),T)
   (const int N, const int K, const void *valpha, const void *A, const int lda,
    const void *vbeta, void *C, const int ldc)
{
   void *vc;
   TYPE *c;
   #ifdef TREAL
      const SCALAR alpha=*( (const SCALAR *)valpha );
      const SCALAR beta =*( (const SCALAR *)vbeta  );
      const SCALAR one=1.0, zero=0.0;
   #else
      #define alpha valpha
      const TYPE *beta=vbeta;
      const TYPE one[2]={1.0,0.0}, zero[2]={0.0,0.0};
   #endif

   if (K > SYRK_Xover)
   {
      vc = malloc(ATL_Cachelen+ATL_MulBySize(N)*N);
      ATL_assert(vc);
      c = ATL_AlignPtr(vc);
      CgemmTN(N, N, K, alpha, A, lda, A, lda, zero, c, N);
      if ( SCALAR_IS_ONE(beta) ) Mjoin(syr_put,_b1)(N, c, beta, C, ldc);
      else if ( SCALAR_IS_ZERO(beta) ) Mjoin(syr_put,_b0)(N, c, beta, C, ldc);
      #ifdef TCPLX
         else if ( SCALAR_IS_NONE(beta) )
            Mjoin(syr_put,_bn1)(N, c, beta, C, ldc);
         else if (beta[1] == *zero) Mjoin(syr_put,_bXi0)(N, c, beta, C, ldc);
      #endif
      else Mjoin(syr_put,_bX)(N, c, beta, C, ldc);
      free(vc);
   }
   else Mjoin(PATL,refsyrk)(Uplo_, AtlasTrans, N, K, alpha, A, lda,
                            beta, C, ldc);
}