RTOp_ROp_log_bound_barrier.c

00001 /*
00002 // @HEADER
00003 // ***********************************************************************
00004 // 
00005 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
00006 //                  Copyright (2003) Sandia Corporation
00007 // 
00008 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00009 // license for use of this work by or on behalf of the U.S. Government.
00010 // 
00011 // This library is free software; you can redistribute it and/or modify
00012 // it under the terms of the GNU Lesser General Public License as
00013 // published by the Free Software Foundation; either version 2.1 of the
00014 // License, or (at your option) any later version.
00015 //  
00016 // This library is distributed in the hope that it will be useful, but
00017 // WITHOUT ANY WARRANTY; without even the implied warranty of
00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00019 // Lesser General Public License for more details.
00020 //  
00021 // You should have received a copy of the GNU Lesser General Public
00022 // License along with this library; if not, write to the Free Software
00023 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00024 // USA
00025 // Questions? Contact Roscoe A. Bartlett (rabartl@sandia.gov) 
00026 // 
00027 // ***********************************************************************
00028 // @HEADER
00029 */
00030 
00031 #include <math.h>
00032 
00033 /* */
00034 /* Note: This file was created automatically by 'new_rtop.pl' */
00035 /*       on 6/26/2002 at 21:9 */
00036 /* */
00037 
00038 #define max(a,b) ( (a) > (b) ? (a) : (b) )
00039 #define min(a,b) ( (a) < (b) ? (a) : (b) )
00040 
00041 #include "RTOp_ROp_log_bound_barrier.h"
00042 #include "RTOp_obj_null_vtbl.h"  /* vtbl for operator object instance data */
00043 #include "RTOp_reduct_sum_value.h"  /* Reduction of intermediate reduction objects */
00044 
00045 
00046 
00047 /* Implementation functions for RTOp_RTOp */
00048 
00049 static int RTOp_ROp_log_bound_barrier_apply_op(
00050   const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
00051   , const int num_vecs, const struct RTOp_SubVector vecs[]
00052   , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
00053   , RTOp_ReductTarget reduct_obj )
00054 {
00055   /* */
00056   /* Declare local variables */
00057   /* */
00058 
00059     /* Access to the reduction object data */
00060     RTOp_value_type *log_result = (RTOp_value_type*)reduct_obj;
00061     /* Vector data */
00062     RTOp_index_type           sub_dim;
00063     /* v0 */
00064     const RTOp_value_type     *v0_val;
00065     ptrdiff_t                 v0_val_s;
00066     /* v1 */
00067     const RTOp_value_type     *v1_val;
00068     ptrdiff_t                 v1_val_s;
00069     /* v2 */
00070     const RTOp_value_type     *v2_val;
00071     ptrdiff_t                 v2_val_s;
00072 
00073     register RTOp_index_type  k;
00074 
00075   /* */
00076   /* Validate the input */
00077   /* */
00078     if( num_vecs != 3 || ( num_vecs && vecs == NULL ) )
00079         return RTOp_ERR_INVALID_NUM_VECS;
00080     if( num_targ_vecs != 0 || ( num_targ_vecs && targ_vecs == NULL ) )
00081         return RTOp_ERR_INVALID_NUM_TARG_VECS;
00082     if( /* Validate sub_dim */
00083         vecs[1].sub_dim != vecs[0].sub_dim
00084         || vecs[2].sub_dim != vecs[0].sub_dim
00085         )
00086         return RTOp_ERR_INCOMPATIBLE_VECS;
00087     assert(reduct_obj);
00088 
00089 
00090   /* */
00091   /* Get pointers to data */
00092   /* */
00093     sub_dim       = vecs[0].sub_dim;
00094     /* v0 */
00095     v0_val        = vecs[0].values;
00096     v0_val_s      = vecs[0].values_stride;
00097     /* v1 */
00098     v1_val        = vecs[1].values;
00099     v1_val_s      = vecs[1].values_stride;
00100     /* v2 */
00101     v2_val        = vecs[2].values;
00102     v2_val_s      = vecs[2].values_stride;
00103 
00104 
00105   /* */
00106   /* Apply the operator: */
00107   /* */
00108     /*    element-wise reduction      : log_result += log(v0 - v1) + log(v2 - v0); */
00109     /* */
00110     for( k = 0; k < sub_dim; ++k, v0_val += v0_val_s, v1_val += v1_val_s, v2_val += v2_val_s )
00111     {
00112         /* Element-wise reduction */
00113         (*log_result) += log((*v0_val) - (*v1_val)) + log((*v2_val) - (*v0_val));
00114     }
00115 
00116   return 0; /* success? */
00117 }
00118 
00119 /* Virtual function table */
00120 const struct RTOp_RTOp_vtbl_t RTOp_ROp_log_bound_barrier_vtbl =
00121 {
00122   &RTOp_obj_null_vtbl
00123   ,&RTOp_obj_value_vtbl
00124   ,"ROp_log_bound_barrier"
00125   ,NULL
00126   ,RTOp_ROp_log_bound_barrier_apply_op
00127   ,RTOp_reduct_sum_value
00128   ,RTOp_get_reduct_sum_value_op
00129 };
00130 
00131 /* Class specific functions */
00132 
00133 int RTOp_ROp_log_bound_barrier_construct(  struct RTOp_RTOp* op )
00134 {
00135 #ifdef RTOp_DEBUG
00136   assert(op);
00137 #endif
00138   op->obj_data  = NULL;
00139   op->vtbl      = &RTOp_ROp_log_bound_barrier_vtbl;
00140   op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
00141   return 0;
00142 }
00143 
00144 int RTOp_ROp_log_bound_barrier_destroy( struct RTOp_RTOp* op )
00145 {
00146   op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
00147   op->obj_data  = NULL;
00148   op->vtbl      = NULL;
00149   return 0;
00150 }
00151 
00152 
00153 RTOp_value_type RTOp_ROp_log_bound_barrier_val(RTOp_ReductTarget reduct_obj)
00154 {
00155     return *((RTOp_value_type*)reduct_obj);
00156 }
00157 
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