RTOp_ROp_fraction_to_boundary.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 /* ///////////////////////////////////////////// */
00032 /* RTOp_ROp_fraction_to_boundary.c */
00033 
00034 /* */
00035 /* Note: This file was created automatically by 'new_rtop.pl' */
00036 /*       on 7/8/2002 at 18:22 */
00037 /* */
00038 
00039 #define max(a,b) ( (a) > (b) ? (a) : (b) )
00040 #define min(a,b) ( (a) < (b) ? (a) : (b) )
00041 
00042 #include "RTOp_ROp_fraction_to_boundary.h"
00043 #include "RTOp_obj_value_vtbl.h"  /* vtbl for operator object instance data */
00044 #include "RTOp_reduct_min_value.h"  /* Reduction of intermediate reduction objects */
00045 
00046 
00047 
00048 /* Implementation functions for RTOp_RTOp */
00049 
00050 static int RTOp_ROp_fraction_to_boundary_apply_op(
00051   const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
00052   , const int num_vecs, const struct RTOp_SubVector vecs[]
00053   , const int num_targ_vecs, const struct RTOp_MutableSubVector targ_vecs[]
00054   , RTOp_ReductTarget reduct_obj )
00055 {
00056   /* */
00057   /* Declare local variables */
00058   /* */
00059 
00060   /* Access to the operator object instance data */
00061   RTOp_value_type *tau = (RTOp_value_type*)obj_data;
00062   /* Access to the reduction object data */
00063   RTOp_value_type *alpha_max = (RTOp_value_type*)reduct_obj;
00064   /* Vector data */
00065   RTOp_index_type           sub_dim;
00066   /* v0 */
00067   const RTOp_value_type     *v0_val;
00068   ptrdiff_t                 v0_val_s;
00069   /* v1 */
00070   const RTOp_value_type     *v1_val;
00071   ptrdiff_t                 v1_val_s;
00072   /* v2 */
00073   const RTOp_value_type     *v2_val;
00074   ptrdiff_t                 v2_val_s;
00075   /* v3 */
00076   const RTOp_value_type     *v3_val;
00077   ptrdiff_t                 v3_val_s;
00078 
00079   /* Automatic temporary variables */
00080   register RTOp_index_type  k;
00081   /* Temporary element-wise reduction object */
00082   RTOp_value_type alpha_max_ith;
00083 
00084   /* */
00085   /* Validate the input */
00086   /* */
00087   if( num_vecs != 4 || ( num_vecs && vecs == NULL ) )
00088     return RTOp_ERR_INVALID_NUM_VECS;
00089   if( num_targ_vecs != 0 || ( num_targ_vecs && targ_vecs == NULL ) )
00090     return RTOp_ERR_INVALID_NUM_TARG_VECS;
00091   if( /* Validate sub_dim */
00092     vecs[1].sub_dim != vecs[0].sub_dim
00093     || vecs[2].sub_dim != vecs[0].sub_dim
00094     || vecs[3].sub_dim != vecs[0].sub_dim
00095     )
00096     return RTOp_ERR_INCOMPATIBLE_VECS;
00097   assert(obj_data);
00098   assert(reduct_obj);
00099 
00100 
00101   /* */
00102   /* Get pointers to data */
00103   /* */
00104   sub_dim       = vecs[0].sub_dim;
00105   /* v0 */
00106   v0_val        = vecs[0].values;
00107   v0_val_s      = vecs[0].values_stride;
00108   /* v1 */
00109   v1_val        = vecs[1].values;
00110   v1_val_s      = vecs[1].values_stride;
00111   /* v2 */
00112   v2_val        = vecs[2].values;
00113   v2_val_s      = vecs[2].values_stride;
00114   /* v3 */
00115   v3_val        = vecs[3].values;
00116   v3_val_s      = vecs[3].values_stride;
00117 
00118 
00119   /* */
00120   /* Apply the operator: */
00121   /* */
00122   for( k = 0; k < sub_dim; ++k, v0_val += v0_val_s, v1_val += v1_val_s, v2_val += v2_val_s, v3_val += v3_val_s )
00123   {
00124     /* Element-wise reduction */
00125     if ((*v1_val) < 0)
00126        { alpha_max_ith = (*tau)*((*v0_val)-(*v2_val))/(-(*v1_val)); }
00127     else
00128        { alpha_max_ith = (*tau)*((*v3_val)-(*v0_val))/((*v1_val)); }
00129 
00130     /* Reduction of intermediates */
00131     (*alpha_max) = min( (*alpha_max), alpha_max_ith );
00132   }
00133 
00134   return 0; /* success? */
00135 }
00136 
00137 static int RTOp_ROp_fraction_to_boundary_reduct_obj_reinit(
00138   const struct RTOp_RTOp_vtbl_t* vtbl, const void* obj_data
00139   ,RTOp_ReductTarget reduct_obj
00140   )
00141 {
00142   RTOp_value_type *alpha_max = (RTOp_value_type*)reduct_obj;
00143   *alpha_max = 1.0;
00144   return 0;
00145 }
00146 
00147 /* Virtual function table */
00148 const struct RTOp_RTOp_vtbl_t RTOp_ROp_fraction_to_boundary_vtbl =
00149 {
00150   &RTOp_obj_value_vtbl
00151   ,&RTOp_obj_value_vtbl
00152   ,"ROp_fraction_to_boundary"
00153   ,RTOp_ROp_fraction_to_boundary_reduct_obj_reinit
00154   ,RTOp_ROp_fraction_to_boundary_apply_op
00155   ,RTOp_reduct_min_value
00156   ,RTOp_get_reduct_min_value_op
00157 };
00158 
00159 /* Class specific functions */
00160 
00161 int RTOp_ROp_fraction_to_boundary_construct( RTOp_value_type tau,  struct RTOp_RTOp* op )
00162 {
00163 #ifdef RTOp_DEBUG
00164   assert(op);
00165 #endif
00166   op->obj_data  = NULL;
00167   op->vtbl      = &RTOp_ROp_fraction_to_boundary_vtbl;
00168   op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
00169   return RTOp_ROp_fraction_to_boundary_init(tau,op);
00170 }
00171 
00172 int RTOp_ROp_fraction_to_boundary_destroy( struct RTOp_RTOp* op )
00173 {
00174   op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
00175   op->obj_data  = NULL;
00176   op->vtbl      = NULL;
00177   return 0;
00178 }
00179 
00180 int RTOp_ROp_fraction_to_boundary_init( RTOp_value_type tau, struct RTOp_RTOp* op )
00181 {
00182   RTOp_value_type *ptr_tau = (RTOp_value_type*)op->obj_data;
00183   *ptr_tau = tau;
00184   return 0;
00185 }
00186 RTOp_value_type RTOp_ROp_fraction_to_boundary_val(RTOp_ReductTarget reduct_obj)
00187 {
00188   return *((RTOp_value_type*)reduct_obj);
00189 }
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Generated on Wed Apr 13 10:09:08 2011 for RTOpPack: Extra C/C++ Code for Vector Reduction/Transformation Operators by  doxygen 1.6.3