OpenBLAS/lapack/getrs/getrs_parallel.c

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

#include <stdio.h>
#include "common.h"

static int inner_thread(blas_arg_t *args, BLASLONG *range_m, BLASLONG *range_n,
			 FLOAT *sa, FLOAT *sb, BLASLONG mypos) {

  BLASLONG n   = args -> n;
  BLASLONG off = 0;

  if (range_n) {
    n   = range_n[1] - range_n[0];
    off = range_n[0];
  }

#ifndef TRANS
  LASWP_PLUS(n, 1, args -> m, ZERO,
	     (FLOAT *)args -> b + off * args -> ldb * COMPSIZE, args -> ldb, NULL, 0, args -> c, 1);
  TRSM_LNLU (args, range_m, range_n, sa, sb, 0);
  TRSM_LNUN (args, range_m, range_n, sa, sb, 0);
#else
  TRSM_LTUN  (args, range_m, range_n, sa, sb, 0);
  TRSM_LTLU  (args, range_m, range_n, sa, sb, 0);
  LASWP_MINUS(n, 1, args -> m, ZERO,
	      (FLOAT *)args -> b + off * args -> ldb * COMPSIZE, args -> ldb, NULL, 0, args -> c, -1);
#endif

  return 0;
}

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

  int mode;

#ifndef TRANS
    if (args -> n  == 1){
      LASWP_PLUS(1, 1, args -> m, ZERO, args -> b, args -> ldb, NULL, 0, args -> c, 1);
      TRSV_NLU (args -> m, args -> a, args -> lda, args -> b, 1, sb);
      TRSV_NUN (args -> m, args -> a, args -> lda, args -> b, 1, sb);
    } else {
#ifdef XDOUBLE
      mode  =  BLAS_XDOUBLE | BLAS_REAL;
#elif defined(DOUBLE)
      mode  =  BLAS_DOUBLE  | BLAS_REAL;
#else
      mode  =  BLAS_SINGLE  | BLAS_REAL;
#endif

      gemm_thread_n(mode, args, NULL, NULL, inner_thread, sa, sb,  args -> nthreads);
    }
#else
    if (args -> n == 1){
      TRSV_TUN (args -> m, args -> a, args -> lda, args -> b, 1, sb);
      TRSV_TLU (args -> m, args -> a, args -> lda, args -> b, 1, sb);
      LASWP_MINUS(1, 1, args -> m, ZERO, args -> b, args -> ldb, NULL, 0, args -> c, -1);
    } else {
#ifdef XDOUBLE
      mode  =  BLAS_XDOUBLE | BLAS_REAL | (1 << BLAS_TRANSA_SHIFT);
#elif defined(DOUBLE)
      mode  =  BLAS_DOUBLE  | BLAS_REAL | (1 << BLAS_TRANSA_SHIFT);
#else
      mode  =  BLAS_SINGLE  | BLAS_REAL | (1 << BLAS_TRANSA_SHIFT);
#endif

      gemm_thread_n(mode, args, NULL, NULL, inner_thread, sa, sb,  args -> nthreads);
    }
#endif

    return 0;
  }