Reduceloadx.h File Reference

reduce loads (wring out boundary conditions) More...

#include "../../classes/classes.h"

Go to the source code of this file.

Functions
void	Reduceloadx (Vector< IssmDouble > *pf, Matrix< IssmDouble > *Kfs, Vector< IssmDouble > *ys, bool flag_ys0=false)

Detailed Description

reduce loads (wring out boundary conditions)

Definition in file Reduceloadx.h.

Function Documentation

Reduceloadx()

void Reduceloadx	(	Vector< IssmDouble > *	pf,
		Matrix< IssmDouble > *	Kfs,
		Vector< IssmDouble > *	ys,
		bool	flag_ys0 = false
	)

Definition at line 14 of file Reduceloadx.cpp.

                                                                                                          {
 
   /*intermediary*/
   Vector<IssmDouble>*     y_s0   = NULL;
   Vector<IssmDouble>*     Kfsy_s = NULL;
   int         Kfsm,Kfsn;
   int         global_m,global_n;
   bool        fromlocalsize = true;
   bool        oldalloc  = false;
 
   if(VerboseModule()) _printf0_("   Dirichlet lifting applied to load vector\n");
 
   Kfs->GetSize(&global_m,&global_n);
   if(pf && global_m*global_n){
 
      /*Some checks in debugging mode*/
      _assert_(y_s);
 
      /*pf = pf - Kfs * y_s;*/
      Kfs->GetLocalSize(&Kfsm,&Kfsn);
      if(oldalloc)
       Kfsy_s=new Vector<IssmDouble>(Kfsm,fromlocalsize);
      else
       Kfsy_s=new Vector<IssmDouble>(Kfsm,global_m);
 
      if (flag_ys0){
 
         /*Create y_s0, full of 0: */
         y_s0=y_s->Duplicate();
         y_s0->Set(0.0);
         y_s0->Assemble();
 
         Kfs->MatMult(y_s0,Kfsy_s);
      }
      else{
         Kfs->MatMult(y_s,Kfsy_s);
      }
 
      pf->AXPY(Kfsy_s,-1.);
   }
 
   /*Free ressources and return*/
   delete y_s0;
   delete Kfsy_s;
 
}