/*********************************************************************/

/* Copyright 2009, 2010 The University of Texas at Austin.           */

/* All rights reserved.                                              */

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/* Redistribution and use in source and binary forms, with or        */

/* without modification, are permitted provided that the following   */

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/*      copyright notice, this list of conditions and the following  */

/*      disclaimer.                                                  */

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/*   2. Redistributions in binary form must reproduce the above      */

/*      copyright notice, this list of conditions and the following  */

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/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */

/*    AUSTIN  ``AS IS''  AND ANY  EXPRESS OR  IMPLIED WARRANTIES,    */

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/* interpreted as representing official policies, either expressed   */

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/*********************************************************************/

#include <stdio.h></stdio.h>

#include "common.h"

static FLOAT dp1 =  1.;

#ifndef COMPLEX

#define TRMM_KERNEL	TRMM_KERNEL_LN

#define SYRK_KERNEL	SYRK_KERNEL_L

#else

#define TRMM_KERNEL	TRMM_KERNEL_LR

#ifdef XDOUBLE

#define SYRK_KERNEL	xherk_kernel_LC

#elif defined(DOUBLE)

#define SYRK_KERNEL	zherk_kernel_LC

#else

#define SYRK_KERNEL	cherk_kernel_LC

#endif

#endif

#if 0

#undef GEMM_P

#undef GEMM_Q

#undef GEMM_R

#define GEMM_P 8

#define GEMM_Q 20

#define GEMM_R 64

#endif

#define GEMM_PQ  MAX(GEMM_P, GEMM_Q)

#define REAL_GEMM_R (GEMM_R - GEMM_PQ)

blasint CNAME(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n, FLOAT *sa, FLOAT *sb, BLASLONG myid) {

  BLASLONG  n, lda;

  FLOAT *a;

  BLASLONG j, bk, blocking;

  BLASLONG jjs, min_jj;

  BLASLONG is, ls, ks;

  BLASLONG min_i, min_l, min_k;

  BLASLONG range_N[2];

  FLOAT *sb2 = (FLOAT *)((((BLASLONG)sb

		    + GEMM_PQ  * GEMM_Q * COMPSIZE * SIZE + GEMM_ALIGN) & ~GEMM_ALIGN)

		  + GEMM_OFFSET_B);

#if 0

  FLOAT *aa;

#endif

  n      = args -> n;

  a      = (FLOAT *)args -> a;

  lda    = args -> lda;

  if (range_n) {

    n      = range_n[1] - range_n[0];

    a     += range_n[0] * (lda + 1) * COMPSIZE;

  }

  if (n <= DTB_ENTRIES) {

    LAUU2_L(args, NULL, range_n, sa, sb, 0);

    return 0;

  }

  blocking = GEMM_Q;

  if (n <= 4 * GEMM_Q) blocking = (n + 3) / 4;

  for (j = 0; j < n; j += blocking) {

    bk = MIN(blocking, n - j);

    if (j > 0 ){

      TRMM_ILNCOPY(bk, bk, a + (j + j * lda) * COMPSIZE, lda, 0, 0, sb);

      for (ls = 0; ls < j; ls += REAL_GEMM_R) {

	min_l = j - ls;

	if (min_l > REAL_GEMM_R) min_l = REAL_GEMM_R;

#if 0

	min_i = j - ls;

	if (min_i > GEMM_P) min_i = GEMM_P;

	if (ls + min_i >= ls + min_l) {

	  GEMM_INCOPY(bk, min_i, a + (j + ls * lda)* COMPSIZE, lda, sa);

	  aa = sa;

	} else {

	  aa = sb2;

	}

	for (jjs = ls; jjs < ls + min_l; jjs += GEMM_P){

	  min_jj = ls + min_l - jjs;

	  if (min_jj > GEMM_P) min_jj = GEMM_P;

	  GEMM_ONCOPY(bk, min_jj, a + (j + jjs * lda) * COMPSIZE, lda, sb2 + (jjs - ls) * bk * COMPSIZE);

	  SYRK_KERNEL(min_i, min_jj, bk, dp1, 

		      aa, 

		      sb2 + (jjs - ls) * bk * COMPSIZE, 

		      a + (ls + jjs * lda) * COMPSIZE, lda, 

		      ls - jjs);

	}

	for(is = ls + min_i; is < j ; is += GEMM_P){

	  min_i = j - is;

	  if (min_i > GEMM_P) min_i = GEMM_P;

	  GEMM_INCOPY(bk, min_i, a + (j + is * lda)* COMPSIZE, lda, sa);

	  SYRK_KERNEL(min_i, min_l, bk, dp1, 

		      sa, 

		      sb2, 

		      a + (is + ls * lda) * COMPSIZE, lda, 

		      is - ls);

	}

	for (ks = 0; ks < bk; ks += GEMM_P) {

	  min_k = bk - ks;

	  if (min_k > GEMM_P) min_k = GEMM_P;

	  TRMM_KERNEL(min_k, min_l, bk, dp1,

#ifdef COMPLEX

		      ZERO,

#endif

		      sb + ks * bk * COMPSIZE,

		      sb2,

		      a + (ks + j + ls * lda) * COMPSIZE, lda, ks); 

	}

#else

	min_i = j - ls;

	if (min_i > GEMM_P) min_i = GEMM_P;

	GEMM_INCOPY(bk, min_i, a + (j + ls * lda)* COMPSIZE, lda, sa);

	for (jjs = ls; jjs < ls + min_l; jjs += GEMM_P){

	  min_jj = ls + min_l - jjs;

	  if (min_jj > GEMM_P) min_jj = GEMM_P;

	  GEMM_ONCOPY(bk, min_jj, a + (j + jjs * lda) * COMPSIZE, lda, sb2 + (jjs - ls) * bk * COMPSIZE);

	  SYRK_KERNEL(min_i, min_jj, bk, dp1, 

		      sa, 

		      sb2 + (jjs - ls) * bk * COMPSIZE, 

		      a + (ls + jjs * lda) * COMPSIZE, lda, 

		      ls - jjs);

	}

	for(is = ls + min_i; is < j ; is += GEMM_P){

	  min_i = j - is;

	  if (min_i > GEMM_P) min_i = GEMM_P;

	  GEMM_INCOPY(bk, min_i, a + (j + is * lda)* COMPSIZE, lda, sa);

	  SYRK_KERNEL(min_i, min_l, bk, dp1, 

		      sa, 

		      sb2, 

		      a + (is + ls * lda) * COMPSIZE, lda, 

		      is - ls);

	}

	for (ks = 0; ks < bk; ks += GEMM_P) {

	  min_k = bk - ks;

	  if (min_k > GEMM_P) min_k = GEMM_P;

	  TRMM_KERNEL(min_k, min_l, bk, dp1,

#ifdef COMPLEX

		      ZERO,

#endif

		      sb + ks * bk * COMPSIZE,

		      sb2,

		      a + (ks + j + ls * lda) * COMPSIZE, lda, ks); 

	}

#endif

      }

    }

    if (!range_n) {

      range_N[0] = j;

      range_N[1] = j + bk;

    } else {

      range_N[0] = range_n[0] + j;

      range_N[1] = range_n[0] + j + bk;

    }

    CNAME(args, NULL, range_N, sa, sb, 0);

  }

  return 0;

}