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

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

/* All rights reserved.                                              */

/*                                                                   */

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

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

/* conditions are met:                                               */

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/*   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.                              */

/*                                                                   */

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

/*    AUSTIN  ``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    */

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/* documentation are those of the authors and should not be          */

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

/* or implied, of The University of Texas at Austin.                 */

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

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

#include <ctype.h></ctype.h>

#include "common.h"

#ifdef FUNCTION_PROFILE

#include "functable.h"

#endif

#ifndef COMPLEX

#ifdef XDOUBLE

#define ERROR_NAME "QSYMM "

#elif defined(DOUBLE)

#define ERROR_NAME "DSYMM "

#else

#define ERROR_NAME "SSYMM "

#endif

#else

#ifndef GEMM3M

#ifndef HEMM

#ifdef XDOUBLE

#define ERROR_NAME "XSYMM "

#elif defined(DOUBLE)

#define ERROR_NAME "ZSYMM "

#else

#define ERROR_NAME "CSYMM "

#endif

#else

#ifdef XDOUBLE

#define ERROR_NAME "XHEMM "

#elif defined(DOUBLE)

#define ERROR_NAME "ZHEMM "

#else

#define ERROR_NAME "CHEMM "

#endif

#endif

#else

#ifndef HEMM

#ifdef XDOUBLE

#define ERROR_NAME "XSYMM3M "

#elif defined(DOUBLE)

#define ERROR_NAME "ZSYMM3M "

#else

#define ERROR_NAME "CSYMM3M "

#endif

#else

#ifdef XDOUBLE

#define ERROR_NAME "XHEMM3M "

#elif defined(DOUBLE)

#define ERROR_NAME "ZHEMM3M "

#else

#define ERROR_NAME "CHEMM3M "

#endif

#endif

#endif

#endif

static int (*symm[])(blas_arg_t *, BLASLONG *, BLASLONG *, FLOAT *, FLOAT *, BLASLONG) = {

#ifndef GEMM3M

#ifndef HEMM

  SYMM_LU, SYMM_LL, SYMM_RU, SYMM_RL,

#if defined(SMP) && !defined(USE_SIMPLE_THREADED_LEVEL3)

  SYMM_THREAD_LU, SYMM_THREAD_LL, SYMM_THREAD_RU, SYMM_THREAD_RL,

#endif

#else

  HEMM_LU, HEMM_LL, HEMM_RU, HEMM_RL,

#if defined(SMP) && !defined(USE_SIMPLE_THREADED_LEVEL3)

  HEMM_THREAD_LU, HEMM_THREAD_LL, HEMM_THREAD_RU, HEMM_THREAD_RL,

#endif

#endif

#else

#ifndef HEMM

  SYMM3M_LU, SYMM3M_LL, SYMM3M_RU, SYMM3M_RL,

#if defined(SMP) && !defined(USE_SIMPLE_THREADED_LEVEL3)

  SYMM3M_THREAD_LU, SYMM3M_THREAD_LL, SYMM3M_THREAD_RU, SYMM3M_THREAD_RL,

#endif

#else

  HEMM3M_LU, HEMM3M_LL, HEMM3M_RU, HEMM3M_RL,

#if defined(SMP) && !defined(USE_SIMPLE_THREADED_LEVEL3)

  HEMM3M_THREAD_LU, HEMM3M_THREAD_LL, HEMM3M_THREAD_RU, HEMM3M_THREAD_RL,

#endif

#endif

#endif

};

#ifndef CBLAS

void NAME(char *SIDE, char *UPLO, 

         blasint *M, blasint *N, 

         FLOAT *alpha, FLOAT *a, blasint *ldA, 

         FLOAT *b, blasint *ldB, 

         FLOAT *beta,  FLOAT *c, blasint *ldC){

  char side_arg  = *SIDE;

  char uplo_arg  = *UPLO;

  blas_arg_t args;

  FLOAT *buffer;

  FLOAT *sa, *sb;

#ifdef SMP

#ifndef COMPLEX

#ifdef XDOUBLE

  int mode  =  BLAS_XDOUBLE | BLAS_REAL;

#elif defined(DOUBLE)

  int mode  =  BLAS_DOUBLE  | BLAS_REAL;

#else

  int mode  =  BLAS_SINGLE  | BLAS_REAL;

#endif  

#else

#ifdef XDOUBLE

  int mode  =  BLAS_XDOUBLE | BLAS_COMPLEX;

#elif defined(DOUBLE)

  int mode  =  BLAS_DOUBLE  | BLAS_COMPLEX;

#else

  int mode  =  BLAS_SINGLE  | BLAS_COMPLEX;

#endif

#endif

#endif

#if defined(SMP) && !defined(NO_AFFINITY)

  int nodes;

#endif

  blasint info;

  int side;

  int uplo;

  PRINT_DEBUG_NAME;

  args.alpha = (void *)alpha;

  args.beta  = (void *)beta;

  TOUPPER(side_arg);

  TOUPPER(uplo_arg);

  side  = -1;

  uplo  = -1;

  if (side_arg  == 'L') side  = 0;

  if (side_arg  == 'R') side  = 1;

  if (uplo_arg  == 'U') uplo  = 0;

  if (uplo_arg  == 'L') uplo  = 1;

  args.m = *M;

  args.n = *N;

  args.c = (void *)c;

  args.ldc = *ldC;

  info = 0;

  if (args.ldc < MAX(1, args.m)) info = 12;

  if (!side) {

    args.a = (void *)a;

    args.b = (void *)b;

    args.lda = *ldA;

    args.ldb = *ldB;

    if (args.ldb < MAX(1, args.m)) info =  9;

    if (args.lda < MAX(1, args.m)) info =  7;

  } else {

    args.a = (void *)b;

    args.b = (void *)a;

    args.lda = *ldB;

    args.ldb = *ldA;

  if (args.lda < MAX(1, args.m)) info =  9;

  if (args.ldb < MAX(1, args.n)) info =  7;

  }

  if (args.n   < 0)              info =  4;

  if (args.m   < 0)              info =  3;

  if (uplo     < 0)              info =  2;

  if (side     < 0)              info =  1;

  if (info != 0) {

    BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));

    return;

  }

#else

void CNAME(enum CBLAS_ORDER order, enum CBLAS_SIDE Side, enum CBLAS_UPLO Uplo,

	   blasint m, blasint n,

#ifndef COMPLEX

	   FLOAT alpha,

#else

	   FLOAT *alpha,

#endif

	   FLOAT *a, blasint lda,

	   FLOAT *b, blasint ldb,

#ifndef COMPLEX

	   FLOAT beta,

#else

	   FLOAT *beta,

#endif

	   FLOAT *c, blasint ldc) {

  blas_arg_t args;

  int side, uplo;

  blasint info;

  FLOAT *buffer;

  FLOAT *sa, *sb;

#ifdef SMP

#ifndef COMPLEX

#ifdef XDOUBLE

  int mode  =  BLAS_XDOUBLE | BLAS_REAL;

#elif defined(DOUBLE)

  int mode  =  BLAS_DOUBLE  | BLAS_REAL;

#else

  int mode  =  BLAS_SINGLE  | BLAS_REAL;

#endif  

#else

#ifdef XDOUBLE

  int mode  =  BLAS_XDOUBLE | BLAS_COMPLEX;

#elif defined(DOUBLE)

  int mode  =  BLAS_DOUBLE  | BLAS_COMPLEX;

#else

  int mode  =  BLAS_SINGLE  | BLAS_COMPLEX;

#endif  

#endif

#endif

#if defined(SMP) && !defined(NO_AFFINITY)

  int nodes;

#endif

  PRINT_DEBUG_CNAME;

#ifndef COMPLEX

  args.alpha = (void *)α

  args.beta  = (void *)β

#else

  args.alpha = (void *)alpha;

  args.beta  = (void *)beta;

#endif

  args.c = (void *)c;

  args.ldc = ldc;

  side  = -1;

  uplo  = -1;

  info  =  0;

  if (order == CblasColMajor) {

    if (Side == CblasLeft)  side = 0;

    if (Side == CblasRight) side = 1;

    if (Uplo == CblasUpper) uplo  = 0;

    if (Uplo == CblasLower) uplo  = 1;

    info = -1;

    args.m = m;

    args.n = n;

    if (args.ldc < MAX(1, args.m)) info = 12;

    if (!side) {

      args.a = (void *)a;

      args.b = (void *)b;

      args.lda = lda;

      args.ldb = ldb;

      if (args.ldb < MAX(1, args.m)) info =  9;

      if (args.lda < MAX(1, args.m)) info =  7;

    } else {

      args.a = (void *)b;

      args.b = (void *)a;

      args.lda = ldb;

      args.ldb = lda;

      if (args.lda < MAX(1, args.m)) info =  9;

      if (args.ldb < MAX(1, args.n)) info =  7;

    }

    if (args.n   < 0)              info =  4;

    if (args.m   < 0)              info =  3;

    if (uplo     < 0)              info =  2;

    if (side     < 0)              info =  1;

  }

  if (order == CblasRowMajor) {

    if (Side == CblasLeft)  side = 1;

    if (Side == CblasRight) side = 0;

    if (Uplo == CblasUpper) uplo  = 1;

    if (Uplo == CblasLower) uplo  = 0;

    info = -1;

    args.m = n;

    args.n = m;

    if (args.ldc < MAX(1, args.m)) info = 12;

    if (!side) {

      args.a = (void *)a;

      args.b = (void *)b;

      args.lda = lda;

      args.ldb = ldb;

      if (args.ldb < MAX(1, args.m)) info =  9;

      if (args.lda < MAX(1, args.m)) info =  7;

    } else {

      args.a = (void *)b;

      args.b = (void *)a;

      args.lda = ldb;

      args.ldb = lda;

      if (args.lda < MAX(1, args.m)) info =  9;

      if (args.ldb < MAX(1, args.n)) info =  7;

    }

    if (args.n   < 0)              info =  4;

    if (args.m   < 0)              info =  3;

    if (uplo     < 0)              info =  2;

    if (side     < 0)              info =  1;

  }

  if (info >= 0) {

    BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));

    return;

  }

#endif

  if (args.m == 0 || args.n == 0) return;

  IDEBUG_START;

  FUNCTION_PROFILE_START();

  buffer = (FLOAT *)blas_memory_alloc(0);

  sa = (FLOAT *)((BLASLONG)buffer + GEMM_OFFSET_A);

  sb = (FLOAT *)(((BLASLONG)sa + ((GEMM_P * GEMM_Q * COMPSIZE * SIZE + GEMM_ALIGN) & ~GEMM_ALIGN)) + GEMM_OFFSET_B);

#ifdef SMP

  args.common = NULL;

  args.nthreads = num_cpu_avail(3);

  if (args.nthreads == 1) {

#endif

    (symm[(side << 1) | uplo ])(&args, NULL, NULL, sa, sb, 0);

#ifdef SMP

  } else {

#ifndef NO_AFFINITY

    nodes = get_num_nodes();

    if (nodes > 1) {

      args.nthreads /= nodes;

      gemm_thread_mn(mode, &args, NULL, NULL, 

		     symm[4 | (side << 1) | uplo ], sa, sb, nodes);

    } else {

#endif

#ifndef USE_SIMPLE_THREADED_LEVEL3

      (symm[4 | (side << 1) | uplo ])(&args, NULL, NULL, sa, sb, 0);

#else

      GEMM_THREAD(mode, &args, NULL, NULL, symm[(side << 1) | uplo ], sa, sb, args.nthreads);

#endif

#ifndef NO_AFFINITY

    }

#endif

  }

#endif

 blas_memory_free(buffer);

  FUNCTION_PROFILE_END(COMPSIZE * COMPSIZE,

		       (!side)? args.m * (args.m / 2 + args.n) : args.n * (args.m + args.n / 2),

		       (!side)? 2 * args.m * args.m * args.n : 2 * args.m * args.n * args.n);

  IDEBUG_END;

  return;

}