kusano 2b45e8
/*********************************************************************/
kusano 2b45e8
/* Copyright 2009, 2010 The University of Texas at Austin.           */
kusano 2b45e8
/* All rights reserved.                                              */
kusano 2b45e8
/*                                                                   */
kusano 2b45e8
/* Redistribution and use in source and binary forms, with or        */
kusano 2b45e8
/* without modification, are permitted provided that the following   */
kusano 2b45e8
/* conditions are met:                                               */
kusano 2b45e8
/*                                                                   */
kusano 2b45e8
/*   1. Redistributions of source code must retain the above         */
kusano 2b45e8
/*      copyright notice, this list of conditions and the following  */
kusano 2b45e8
/*      disclaimer.                                                  */
kusano 2b45e8
/*                                                                   */
kusano 2b45e8
/*   2. Redistributions in binary form must reproduce the above      */
kusano 2b45e8
/*      copyright notice, this list of conditions and the following  */
kusano 2b45e8
/*      disclaimer in the documentation and/or other materials       */
kusano 2b45e8
/*      provided with the distribution.                              */
kusano 2b45e8
/*                                                                   */
kusano 2b45e8
/*    THIS  SOFTWARE IS PROVIDED  BY THE  UNIVERSITY OF  TEXAS AT    */
kusano 2b45e8
/*    AUSTIN  ``AS IS''  AND ANY  EXPRESS OR  IMPLIED WARRANTIES,    */
kusano 2b45e8
/*    INCLUDING, BUT  NOT LIMITED  TO, THE IMPLIED  WARRANTIES OF    */
kusano 2b45e8
/*    MERCHANTABILITY  AND FITNESS FOR  A PARTICULAR  PURPOSE ARE    */
kusano 2b45e8
/*    DISCLAIMED.  IN  NO EVENT SHALL THE UNIVERSITY  OF TEXAS AT    */
kusano 2b45e8
/*    AUSTIN OR CONTRIBUTORS BE  LIABLE FOR ANY DIRECT, INDIRECT,    */
kusano 2b45e8
/*    INCIDENTAL,  SPECIAL, EXEMPLARY,  OR  CONSEQUENTIAL DAMAGES    */
kusano 2b45e8
/*    (INCLUDING, BUT  NOT LIMITED TO,  PROCUREMENT OF SUBSTITUTE    */
kusano 2b45e8
/*    GOODS  OR  SERVICES; LOSS  OF  USE,  DATA,  OR PROFITS;  OR    */
kusano 2b45e8
/*    BUSINESS INTERRUPTION) HOWEVER CAUSED  AND ON ANY THEORY OF    */
kusano 2b45e8
/*    LIABILITY, WHETHER  IN CONTRACT, STRICT  LIABILITY, OR TORT    */
kusano 2b45e8
/*    (INCLUDING NEGLIGENCE OR OTHERWISE)  ARISING IN ANY WAY OUT    */
kusano 2b45e8
/*    OF  THE  USE OF  THIS  SOFTWARE,  EVEN  IF ADVISED  OF  THE    */
kusano 2b45e8
/*    POSSIBILITY OF SUCH DAMAGE.                                    */
kusano 2b45e8
/*                                                                   */
kusano 2b45e8
/* The views and conclusions contained in the software and           */
kusano 2b45e8
/* documentation are those of the authors and should not be          */
kusano 2b45e8
/* interpreted as representing official policies, either expressed   */
kusano 2b45e8
/* or implied, of The University of Texas at Austin.                 */
kusano 2b45e8
/*********************************************************************/
kusano 2b45e8
kusano 2b45e8
#include <stdio.h></stdio.h>
kusano 2b45e8
#include "common.h"
kusano 2b45e8
#ifdef FUNCTION_PROFILE
kusano 2b45e8
#include "functable.h"
kusano 2b45e8
#endif
kusano 2b45e8
kusano 2b45e8
#ifdef XDOUBLE
kusano 2b45e8
#define ERROR_NAME "QGETRS"
kusano 2b45e8
#elif defined(DOUBLE)
kusano 2b45e8
#define ERROR_NAME "DGETRS"
kusano 2b45e8
#else
kusano 2b45e8
#define ERROR_NAME "SGETRS"
kusano 2b45e8
#endif
kusano 2b45e8
kusano 2b45e8
static blasint (*getrs_single[])(blas_arg_t *, BLASLONG *, BLASLONG *, FLOAT *, FLOAT *, BLASLONG) = {
kusano 2b45e8
  GETRS_N_SINGLE, GETRS_T_SINGLE,
kusano 2b45e8
};
kusano 2b45e8
kusano 2b45e8
#ifdef SMP
kusano 2b45e8
static blasint (*getrs_parallel[])(blas_arg_t *, BLASLONG *, BLASLONG *, FLOAT *, FLOAT *, BLASLONG) = {
kusano 2b45e8
  GETRS_N_PARALLEL, GETRS_T_PARALLEL,
kusano 2b45e8
};
kusano 2b45e8
#endif
kusano 2b45e8
kusano 2b45e8
int NAME(char *TRANS, blasint *N, blasint *NRHS, FLOAT *a, blasint *ldA,
kusano 2b45e8
  blasint *ipiv, FLOAT *b, blasint *ldB, blasint *Info){
kusano 2b45e8
kusano 2b45e8
  char trans_arg = *TRANS;
kusano 2b45e8
kusano 2b45e8
  blas_arg_t args;
kusano 2b45e8
kusano 2b45e8
  blasint info;
kusano 2b45e8
  int trans;
kusano 2b45e8
  FLOAT *buffer;
kusano 2b45e8
#ifdef PPC440
kusano 2b45e8
  extern
kusano 2b45e8
#endif
kusano 2b45e8
  FLOAT *sa, *sb;
kusano 2b45e8
kusano 2b45e8
  PRINT_DEBUG_NAME;
kusano 2b45e8
kusano 2b45e8
  args.m    = *N;
kusano 2b45e8
  args.n    = *NRHS;
kusano 2b45e8
  args.a    = (void *)a;
kusano 2b45e8
  args.lda  = *ldA;
kusano 2b45e8
  args.b    = (void *)b;
kusano 2b45e8
  args.ldb  = *ldB;
kusano 2b45e8
  args.c    = (void *)ipiv;
kusano 2b45e8
kusano 2b45e8
  info = 0;
kusano 2b45e8
kusano 2b45e8
  TOUPPER(trans_arg);
kusano 2b45e8
  trans = -1;
kusano 2b45e8
kusano 2b45e8
  if (trans_arg == 'N') trans = 0;
kusano 2b45e8
  if (trans_arg == 'T') trans = 1;
kusano 2b45e8
  if (trans_arg == 'R') trans = 0;
kusano 2b45e8
  if (trans_arg == 'C') trans = 1;
kusano 2b45e8
kusano 2b45e8
  if (args.ldb  < MAX(1, args.m)) info = 8;
kusano 2b45e8
  if (args.lda  < MAX(1, args.m)) info = 5;
kusano 2b45e8
  if (args.n    < 0) info = 3;
kusano 2b45e8
  if (args.m    < 0) info = 2;
kusano 2b45e8
  if (trans     < 0) info = 1;
kusano 2b45e8
kusano 2b45e8
  if (info != 0) {
kusano 2b45e8
    BLASFUNC(xerbla)(ERROR_NAME, &info, sizeof(ERROR_NAME));
kusano 2b45e8
    return 0;
kusano 2b45e8
  }
kusano 2b45e8
  
kusano 2b45e8
  args.alpha = NULL;
kusano 2b45e8
  args.beta  = NULL;
kusano 2b45e8
kusano 2b45e8
  *Info = info;
kusano 2b45e8
kusano 2b45e8
  if (args.m == 0 || args.n == 0) return 0;
kusano 2b45e8
kusano 2b45e8
  IDEBUG_START;
kusano 2b45e8
kusano 2b45e8
  FUNCTION_PROFILE_START();
kusano 2b45e8
kusano 2b45e8
#ifndef PPC440
kusano 2b45e8
  buffer = (FLOAT *)blas_memory_alloc(1);
kusano 2b45e8
kusano 2b45e8
  sa = (FLOAT *)((BLASLONG)buffer + GEMM_OFFSET_A);
kusano 2b45e8
  sb = (FLOAT *)(((BLASLONG)sa + ((GEMM_P * GEMM_Q * COMPSIZE * SIZE + GEMM_ALIGN) & ~GEMM_ALIGN)) + GEMM_OFFSET_B);
kusano 2b45e8
#endif
kusano 2b45e8
kusano 2b45e8
#ifdef SMP
kusano 2b45e8
  args.common = NULL;
kusano 2b45e8
  args.nthreads = num_cpu_avail(4);
kusano 2b45e8
kusano 2b45e8
  if (args.nthreads == 1) {
kusano 2b45e8
#endif
kusano 2b45e8
kusano 2b45e8
    (getrs_single[trans])(&args, NULL, NULL, sa, sb, 0);
kusano 2b45e8
kusano 2b45e8
#ifdef SMP
kusano 2b45e8
  } else {
kusano 2b45e8
    (getrs_parallel[trans])(&args, NULL, NULL, sa, sb, 0);
kusano 2b45e8
  }
kusano 2b45e8
#endif
kusano 2b45e8
kusano 2b45e8
#ifndef PPC440
kusano 2b45e8
  blas_memory_free(buffer);
kusano 2b45e8
#endif
kusano 2b45e8
kusano 2b45e8
  FUNCTION_PROFILE_END(COMPSIZE * COMPSIZE, args.m * args.n, 2 * args.m * args.m * args.n);
kusano 2b45e8
kusano 2b45e8
  IDEBUG_END;
kusano 2b45e8
kusano 2b45e8
  return 0;
kusano 2b45e8
  
kusano 2b45e8
}