atl_ncmmijk.c

基于Blas CLapck的.用过的人知道是干啥的

                 const SCALAR beta, TYPE *C, const int ldc);
   void (*mm_b1)(const int M, const int N, const int K, const SCALAR alpha,
                 const TYPE *A, const int lda, const TYPE *B, const int ldb,
                 const SCALAR beta, TYPE *C, const int ldc);
   void (*mmcu) (const int M, const int N, const int K, const SCALAR alpha,
                 const TYPE *A, const int lda, const TYPE *B, const int ldb,
                 const SCALAR beta, TYPE *C, const int ldc);
   void (*mm_fixedKcu)(const int M, const int N, const int K,
                       const SCALAR alpha, const TYPE *A, const int lda,
                       const TYPE *B, const int ldb, const
                       SCALAR beta, TYPE *C, const int ldc);

   if (TA == AtlasNoTrans)
   {
      if (TB == AtlasNoTrans)
      {
         mm_fixedKcu=Mjoin(Mjoin(Mjoin(NCmm00,Mjoin(0x0x,KB)),NN),0x0x0_aX_bX);
         mmcu = Mjoin(Mjoin(Mjoin(NCmm00,0x0x0),NN),0x0x0_aX_bX);
      }
      else
      {
         mm_fixedKcu=Mjoin(Mjoin(Mjoin(NCmm00,Mjoin(0x0x,KB)),NT),0x0x0_aX_bX);
         mmcu = Mjoin(Mjoin(Mjoin(NCmm00,0x0x0),NT),0x0x0_aX_bX);
      }
      incAk = lda * KB;
      incAn = -Kb * incAk;
      incAm = MB;
   }
   else
   {
      if (TB == AtlasNoTrans)
      {
         mm_fixedKcu=Mjoin(Mjoin(Mjoin(NCmm00,Mjoin(0x0x,KB)),TN),0x0x0_aX_bX);
         mmcu = Mjoin(Mjoin(Mjoin(NCmm00,0x0x0),TN),0x0x0_aX_bX);
      }
      else
      {
         mm_fixedKcu=Mjoin(Mjoin(Mjoin(NCmm00,Mjoin(0x0x,KB)),TT),0x0x0_aX_bX);
         mmcu = Mjoin(Mjoin(Mjoin(NCmm00,0x0x0),TT),0x0x0_aX_bX);
      }
      incAk = KB;
      incAn = -Kb * incAk;
      incAm = MB * lda;
   }
   if (TB == AtlasNoTrans)
   {
      incBk = KB;
      incBn = ldb*NB - K + kr;
      incBm = -Nb * ldb * NB;
   }
   else
   {
      incBk = KB*ldb;
      incBn = NB - Kb*incBk;
      incBm = -Nb*NB;
   }

   if (alpha == ATL_rone)
   {
      if (TA == AtlasNoTrans)
      {
         if (TB == AtlasNoTrans)
         {
            mm_b1 = Mjoin(Mjoin(Mjoin(NCmm0,NN),0x0x0),_a1_b1);
            if (beta == ATL_rone) mm_bX = mm_b1;
            else if (beta == ATL_rzero)
               mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,NN),0x0x0),_a1_b0);
            else mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,NN),0x0x0),_a1_bX);
         }
         else
         {
            mm_b1 = Mjoin(Mjoin(Mjoin(NCmm0,NT),0x0x0),_a1_b1);
            if (beta == ATL_rone) mm_bX = mm_b1;
            else if (beta == ATL_rzero)
               mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,NT),0x0x0),_a1_b0);
            else mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,NT),0x0x0),_a1_bX);
         }
      }
      else
      {
         if (TB == AtlasNoTrans)
         {
            mm_b1 = Mjoin(Mjoin(Mjoin(NCmm0,TN),0x0x0),_a1_b1);
            if (beta == ATL_rone) mm_bX = mm_b1;
            else if (beta == ATL_rzero)
               mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,TN),0x0x0),_a1_b0);
            else mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,TN),0x0x0),_a1_bX);
         }
         else
         {
            mm_b1 = Mjoin(Mjoin(Mjoin(NCmm0,TT),0x0x0),_a1_b1);
            if (beta == ATL_rone) mm_bX = mm_b1;
            else if (beta == ATL_rzero)
               mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,TT),0x0x0),_a1_b0);
            else mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,TT),0x0x0),_a1_bX);
         }
      }
   }
   else  /* non-one alpha */
   {
      btmp = Mabs(beta);
      if (btmp < ATL_rone) btmp = 1.0;
/*
 *    If needed, call version that uses temp C to handle alpha & beta safely
 */
      if (Kb >= ATL_MaxMMalpha || Mabs(alpha) < btmp)
         return(Mjoin(PATL,NCmmIJK_c)(TA, TB, M, N, K, alpha, A, lda, B, ldb,
                                      beta, C, ldc));
      if (TA == AtlasNoTrans)
      {
         if (TB == AtlasNoTrans)
         {
            mm_bX = mm_b1 = Mjoin(Mjoin(Mjoin(NCmm0,NN),0x0x0),_aX_bX);
            if (beta == ATL_rzero)
               mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,NN),0x0x0),_aX_b0);
         }
         else
         {
            mm_bX = mm_b1 = Mjoin(Mjoin(Mjoin(NCmm0,NT),0x0x0),_aX_bX);
            if (beta == ATL_rzero)
               mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,NT),0x0x0),_aX_b0);
         }
      }
      else
      {
         if (TB == AtlasNoTrans)
         {
            mm_bX = mm_b1 = Mjoin(Mjoin(Mjoin(NCmm0,TN),0x0x0),_aX_bX);
            if (beta == ATL_rzero)
               mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,TN),0x0x0),_aX_b0);
         }
         else
         {
            mm_bX = mm_b1 = Mjoin(Mjoin(Mjoin(NCmm0,TT),0x0x0),_aX_bX);
            if (beta == ATL_rzero)
               mm_bX = Mjoin(Mjoin(Mjoin(NCmm0,TT),0x0x0),_aX_b0);
         }
      }
   }

   for (i=Mb; i; i--, a += incAm, b += incBm, c += incCm)
   {
      for (j=Nb; j; j--, a += incAn, b += incBn, c += incCn)
      {
         if (Kb)
         {
            mm_bX(MB, NB, KB, alpha, a, lda, b, ldb, beta, c, ldc);
            a += incAk;  b += incBk;
            for (k=Kb-1; k; k--, a += incAk, b += incBk)
               mm_b1(MB, NB, KB, alpha, a, lda, b, ldb, ATL_rone, c, ldc);
            if (kr)
               mmcu(MB, NB, kr, alpha, a, lda, b, ldb, ATL_rone, c, ldc);
         }
         else if (kr)
         {
            if (BetaIsZero) Mjoin(PATL,gezero)(MB, NB, c, ldc);
            mmcu(MB, NB, kr, alpha, a, lda, b, ldb, beta, c, ldc);
         }
      }
   }
   if (mr)  /* M-loop remainder */
   {
      for (j=Nb; j; j--, a += incAn, b += incBn, c += incCn)
      {
         if (BetaIsZero) Mjoin(PATL,gezero)(mr, NB, c, ldc);
         if (Kb)
         {
            mm_fixedKcu(mr, NB, KB, alpha, a, lda, b, ldb, beta,
                        c, ldc);
            a += incAk;  b += incBk;
            for (k=Kb-1; k; k--, a += incAk, b += incBk)
               mm_fixedKcu(mr, NB, KB, alpha, a, lda, b, ldb, ATL_rone,
                           c, ldc);
            if (kr)
               mmcu(mr, NB, kr, alpha, a, lda, b, ldb, ATL_rone, c, ldc);
         }
         else if (kr)
            mmcu(mr, NB, kr, alpha, a, lda, b, ldb, beta, c, ldc);
      }
   }
   if (nr)
      ATL_assert(Mjoin(PATL,NCmmJIK)(TA, TB, M, nr, K, alpha, A, lda,
                                     B+Nb*(incBn+Kb*incBk), ldb,
                                     beta, C+Nb*NB*ldc, ldc) == 0);
   return(0);
}