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RTOp_ROp_log_bound_barrier.c
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00001 /*
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00004 // 
00005 // Moocho: Multi-functional Object-Oriented arCHitecture for Optimization
00006 //                  Copyright (2003) Sandia Corporation
00007 // 
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00042 */
00043 
00044 #include <math.h>
00045 
00046 /* */
00047 /* Note: This file was created automatically by 'new_rtop.pl' */
00048 /*       on 6/26/2002 at 21:9 */
00049 /* */
00050 
00051 #define max(a,b) ( (a) > (b) ? (a) : (b) )
00052 #define min(a,b) ( (a) < (b) ? (a) : (b) )
00053 
00054 #include "RTOp_ROp_log_bound_barrier.h"
00055 #include "RTOp_obj_null_vtbl.h"  /* vtbl for operator object instance data */
00056 #include "RTOp_reduct_sum_value.h"  /* Reduction of intermediate reduction objects */
00057 
00058 
00059 
00060 /* Implementation functions for RTOp_RTOp */
00061 
00062 static int RTOp_ROp_log_bound_barrier_apply_op(
00063   const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
00064   , const int num_vecs, const struct RTOp_SubVector vecs[]
00065   , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
00066   , RTOp_ReductTarget reduct_obj )
00067 {
00068   /* */
00069   /* Declare local variables */
00070   /* */
00071 
00072     /* Access to the reduction object data */
00073     RTOp_value_type *log_result = (RTOp_value_type*)reduct_obj;
00074     /* Vector data */
00075     RTOp_index_type           sub_dim;
00076     /* v0 */
00077     const RTOp_value_type     *v0_val;
00078     ptrdiff_t                 v0_val_s;
00079     /* v1 */
00080     const RTOp_value_type     *v1_val;
00081     ptrdiff_t                 v1_val_s;
00082     /* v2 */
00083     const RTOp_value_type     *v2_val;
00084     ptrdiff_t                 v2_val_s;
00085 
00086     register RTOp_index_type  k;
00087 
00088   /* */
00089   /* Validate the input */
00090   /* */
00091     if( num_vecs != 3 || ( num_vecs && vecs == NULL ) )
00092         return RTOp_ERR_INVALID_NUM_VECS;
00093     if( num_targ_vecs != 0 || ( num_targ_vecs && targ_vecs == NULL ) )
00094         return RTOp_ERR_INVALID_NUM_TARG_VECS;
00095     if( /* Validate sub_dim */
00096         vecs[1].sub_dim != vecs[0].sub_dim
00097         || vecs[2].sub_dim != vecs[0].sub_dim
00098         )
00099         return RTOp_ERR_INCOMPATIBLE_VECS;
00100     assert(reduct_obj);
00101 
00102 
00103   /* */
00104   /* Get pointers to data */
00105   /* */
00106     sub_dim       = vecs[0].sub_dim;
00107     /* v0 */
00108     v0_val        = vecs[0].values;
00109     v0_val_s      = vecs[0].values_stride;
00110     /* v1 */
00111     v1_val        = vecs[1].values;
00112     v1_val_s      = vecs[1].values_stride;
00113     /* v2 */
00114     v2_val        = vecs[2].values;
00115     v2_val_s      = vecs[2].values_stride;
00116 
00117 
00118   /* */
00119   /* Apply the operator: */
00120   /* */
00121     /*    element-wise reduction      : log_result += log(v0 - v1) + log(v2 - v0); */
00122     /* */
00123     for( k = 0; k < sub_dim; ++k, v0_val += v0_val_s, v1_val += v1_val_s, v2_val += v2_val_s )
00124     {
00125         /* Element-wise reduction */
00126         (*log_result) += log((*v0_val) - (*v1_val)) + log((*v2_val) - (*v0_val));
00127     }
00128 
00129   return 0; /* success? */
00130 }
00131 
00132 /* Virtual function table */
00133 const struct RTOp_RTOp_vtbl_t RTOp_ROp_log_bound_barrier_vtbl =
00134 {
00135   &RTOp_obj_null_vtbl
00136   ,&RTOp_obj_value_vtbl
00137   ,"ROp_log_bound_barrier"
00138   ,NULL
00139   ,RTOp_ROp_log_bound_barrier_apply_op
00140   ,RTOp_reduct_sum_value
00141   ,RTOp_get_reduct_sum_value_op
00142 };
00143 
00144 /* Class specific functions */
00145 
00146 int RTOp_ROp_log_bound_barrier_construct(  struct RTOp_RTOp* op )
00147 {
00148 #ifdef RTOp_DEBUG
00149   assert(op);
00150 #endif
00151   op->obj_data  = NULL;
00152   op->vtbl      = &RTOp_ROp_log_bound_barrier_vtbl;
00153   op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
00154   return 0;
00155 }
00156 
00157 int RTOp_ROp_log_bound_barrier_destroy( struct RTOp_RTOp* op )
00158 {
00159   op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
00160   op->obj_data  = NULL;
00161   op->vtbl      = NULL;
00162   return 0;
00163 }
00164 
00165 
00166 RTOp_value_type RTOp_ROp_log_bound_barrier_val(RTOp_ReductTarget reduct_obj)
00167 {
00168     return *((RTOp_value_type*)reduct_obj);
00169 }
00170 
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