RTOp_TOp_multiplier_step.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_TOp_multiplier_step.c */
00033 
00034 /* */
00035 /* Note: This file was created automatically by 'new_rtop.pl' */
00036 /*       on 7/10/2002 at 1:19 */
00037 /* */
00038 
00039 #define max(a,b) ( (a) > (b) ? (a) : (b) )
00040 #define min(a,b) ( (a) < (b) ? (a) : (b) )
00041 
00042 #include "RTOp_TOp_multiplier_step.h"
00043 #include "RTOp_obj_value_value_vtbl.h"  /* vtbl for operator object instance data */
00044 
00045 
00046 
00047 /* Implementation functions for RTOp_RTOp */
00048 
00049 static int RTOp_TOp_multiplier_step_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 operator object instance data */
00060   struct RTOp_value_value_type *data_cntr = (struct RTOp_value_value_type*)obj_data;
00061   RTOp_value_type *mu = &data_cntr->value1;
00062   RTOp_value_type *alpha = &data_cntr->value2;
00063   /* Vector data */
00064   RTOp_index_type           sub_dim;
00065   /* z0 */
00066   RTOp_value_type           *z0_val;
00067   ptrdiff_t                 z0_val_s;
00068   /* v0 */
00069   const RTOp_value_type     *v0_val;
00070   ptrdiff_t                 v0_val_s;
00071   /* v1 */
00072   const RTOp_value_type     *v1_val;
00073   ptrdiff_t                 v1_val_s;
00074   /* v2 */
00075   const RTOp_value_type     *v2_val;
00076   ptrdiff_t                 v2_val_s;
00077 
00078   /* Automatic temporary variables */
00079   register RTOp_index_type  k;
00080 
00081   /* */
00082   /* Validate the input */
00083   /* */
00084   if( num_vecs != 3 || ( num_vecs && vecs == NULL ) )
00085     return RTOp_ERR_INVALID_NUM_VECS;
00086   if( num_targ_vecs != 1 || ( num_targ_vecs && targ_vecs == NULL ) )
00087     return RTOp_ERR_INVALID_NUM_TARG_VECS;
00088   if( /* Validate sub_dim */
00089     vecs[1].sub_dim != vecs[0].sub_dim
00090     || vecs[2].sub_dim != vecs[0].sub_dim
00091     || targ_vecs[0].sub_dim != vecs[0].sub_dim
00092     )
00093     return RTOp_ERR_INCOMPATIBLE_VECS;
00094   assert(obj_data);
00095 
00096   /* */
00097   /* Get pointers to data */
00098   /* */
00099   sub_dim       = vecs[0].sub_dim;
00100   /* z0 */
00101   z0_val        = targ_vecs[0].values;
00102   z0_val_s      = targ_vecs[0].values_stride;
00103   /* v0 */
00104   v0_val        = vecs[0].values;
00105   v0_val_s      = vecs[0].values_stride;
00106   /* v1 */
00107   v1_val        = vecs[1].values;
00108   v1_val_s      = vecs[1].values_stride;
00109   /* v2 */
00110   v2_val        = vecs[2].values;
00111   v2_val_s      = vecs[2].values_stride;
00112 
00113   /* */
00114   /* Apply the operator: */
00115   /* */
00116   for( k = 0; k < sub_dim; ++k, v0_val += v0_val_s, v1_val += v1_val_s, v2_val += v2_val_s, z0_val += z0_val_s )
00117   {
00118     /* Element-wise transformation */
00119     (*z0_val) = -(*v1_val) + (*mu)*(*v0_val) + (*alpha)*(*v0_val)*(*v1_val)*(*v2_val);
00120   }
00121 
00122   return 0; /* success? */
00123 }
00124 
00125 /* Virtual function table */
00126 const struct RTOp_RTOp_vtbl_t RTOp_TOp_multiplier_step_vtbl =
00127 {
00128   &RTOp_obj_value_value_vtbl
00129   ,&RTOp_obj_null_vtbl
00130   ,"TOp_multiplier_step"
00131   ,NULL
00132   ,RTOp_TOp_multiplier_step_apply_op
00133   ,NULL
00134   ,NULL
00135 };
00136 
00137 /* Class specific functions */
00138 
00139 int RTOp_TOp_multiplier_step_construct( RTOp_value_type mu, RTOp_value_type alpha,  struct RTOp_RTOp* op )
00140 {
00141 #ifdef RTOp_DEBUG
00142   assert(op);
00143 #endif
00144   op->obj_data  = NULL;
00145   op->vtbl      = &RTOp_TOp_multiplier_step_vtbl;
00146   op->vtbl->obj_data_vtbl->obj_create(NULL,NULL,&op->obj_data);
00147   return RTOp_TOp_multiplier_step_init(mu,alpha,op);
00148 }
00149 
00150 int RTOp_TOp_multiplier_step_destroy( struct RTOp_RTOp* op )
00151 {
00152   op->vtbl->obj_data_vtbl->obj_free(NULL,NULL,&op->obj_data);
00153   op->obj_data  = NULL;
00154   op->vtbl      = NULL;
00155   return 0;
00156 }
00157 
00158 int RTOp_TOp_multiplier_step_init( RTOp_value_type mu, RTOp_value_type alpha, struct RTOp_RTOp* op )
00159 {
00160   struct RTOp_value_value_type *ptr_data_cntr = (struct RTOp_value_value_type*)op->obj_data;
00161   RTOp_value_type *ptr_mu = &ptr_data_cntr->value1;
00162   RTOp_value_type *ptr_alpha = &ptr_data_cntr->value2;
00163   *ptr_mu = mu;
00164   *ptr_alpha = alpha;
00165   return 0;
00166 }
00167 

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