RTOp_ROp_log_bound_barrier.c

Go to the documentation of this file.

/*
// @HEADER
// ***********************************************************************
// 
// Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
//                  Copyright (2003) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
// 
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 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.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "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 DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov) 
// 
// ***********************************************************************
// @HEADER
*/

#include <math.h>

/* */
/* Note: This file was created automatically by 'new_rtop.pl' */
/*       on 6/26/2002 at 21:9 */
/* */

#define max(a,b) ( (a) > (b) ? (a) : (b) )
#define min(a,b) ( (a) < (b) ? (a) : (b) )

#include "RTOp_ROp_log_bound_barrier.h"
#include "RTOp_obj_null_vtbl.h"  /* vtbl for operator object instance data */
#include "RTOp_reduct_sum_value.h"  /* Reduction of intermediate reduction objects */



/* Implementation functions for RTOp_RTOp */

static int RTOp_ROp_log_bound_barrier_apply_op(
  const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
  , const int num_vecs, const struct RTOp_SubVector vecs[]
  , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
  , RTOp_ReductTarget reduct_obj )
{
  /* */
  /* Declare local variables */
  /* */

    /* Access to the reduction object data */
    RTOp_value_type *log_result = (RTOp_value_type*)reduct_obj;
    /* Vector data */
    RTOp_index_type           sub_dim;
    /* v0 */
    const RTOp_value_type     *v0_val;
    ptrdiff_t                 v0_val_s;
    /* v1 */
    const RTOp_value_type     *v1_val;
    ptrdiff_t                 v1_val_s;
    /* v2 */
    const RTOp_value_type     *v2_val;
    ptrdiff_t                 v2_val_s;

    register RTOp_index_type  k;

  /* */
  /* Validate the input */
  /* */
    if( num_vecs != 3 || ( num_vecs && vecs == NULL ) )
        return RTOp_ERR_INVALID_NUM_VECS;
    if( num_targ_vecs != 0 || ( num_targ_vecs && targ_vecs == NULL ) )
        return RTOp_ERR_INVALID_NUM_TARG_VECS;
    if( /* Validate sub_dim */
        vecs[1].sub_dim != vecs[0].sub_dim
        || vecs[2].sub_dim != vecs[0].sub_dim
        )
        return RTOp_ERR_INCOMPATIBLE_VECS;
    assert(reduct_obj);


  /* */
  /* Get pointers to data */
  /* */
    sub_dim       = vecs[0].sub_dim;
    /* v0 */
    v0_val        = vecs[0].values;
    v0_val_s      = vecs[0].values_stride;
    /* v1 */
    v1_val        = vecs[1].values;
    v1_val_s      = vecs[1].values_stride;
    /* v2 */
    v2_val        = vecs[2].values;
    v2_val_s      = vecs[2].values_stride;


  /* */
  /* Apply the operator: */
  /* */
    /*    element-wise reduction      : log_result += log(v0 - v1) + log(v2 - v0); */
    /* */
    for( k = 0; k < sub_dim; ++k, v0_val += v0_val_s, v1_val += v1_val_s, v2_val += v2_val_s )
    {
        /* Element-wise reduction */
        (*log_result) += log((*v0_val) - (*v1_val)) + log((*v2_val) - (*v0_val));
    }

  return 0; /* success? */
}

/* Virtual function table */
const struct RTOp_RTOp_vtbl_t RTOp_ROp_log_bound_barrier_vtbl =
{
  &RTOp_obj_null_vtbl
  ,&RTOp_obj_value_vtbl
  ,"ROp_log_bound_barrier"
  ,NULL
  ,RTOp_ROp_log_bound_barrier_apply_op
  ,RTOp_reduct_sum_value
  ,RTOp_get_reduct_sum_value_op
};

/* Class specific functions */

int RTOp_ROp_log_bound_barrier_construct(  struct RTOp_RTOp* op )
{
#ifdef RTOp_DEBUG
  assert(op);
#endif
  op->obj_data  = NULL;
  op->vtbl      = &RTOp_ROp_log_bound_barrier_vtbl;
  op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
  return 0;
}

int RTOp_ROp_log_bound_barrier_destroy( struct RTOp_RTOp* op )
{
  op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
  op->obj_data  = NULL;
  op->vtbl      = NULL;
  return 0;
}


RTOp_value_type RTOp_ROp_log_bound_barrier_val(RTOp_ReductTarget reduct_obj)
{
    return *((RTOp_value_type*)reduct_obj);
}