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/*
* Copyright (C) 2010 Thorsten Liebig (Thorsten.Liebig@gmx.de)
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "FDTD/engine.h"
#include "engine_ext_cylindermultigrid.h"
#include "FDTD/engine_cylindermultigrid.h"
Engine_Ext_CylinderMultiGrid::Engine_Ext_CylinderMultiGrid(Operator_Extension* op_ext, bool isBase) : Engine_Extension(op_ext)
{
m_IsBase = isBase;
m_Eng_MG = NULL;
// the multi-grid should be applies last?
m_Priority = ENG_EXT_PRIO_CYLINDERMULTIGRID;
}
Engine_Ext_CylinderMultiGrid::~Engine_Ext_CylinderMultiGrid()
{
}
void Engine_Ext_CylinderMultiGrid::SetBarrier(boost::barrier* waitBase, boost::barrier* waitChild, boost::barrier* waitSync)
{
m_WaitOnBase = waitBase;
m_WaitOnChild = waitChild;
m_WaitOnSync = waitSync;
}
void Engine_Ext_CylinderMultiGrid::SetEngine(Engine* eng)
{
m_Eng_MG = dynamic_cast<Engine_CylinderMultiGrid*>(eng);
if (m_Eng_MG==NULL)
{
cerr << "Engine_Ext_CylinderMultiGrid::SetEngine(): Error" << endl;
exit(0);
}
}
void Engine_Ext_CylinderMultiGrid::DoPreVoltageUpdates()
{
//cerr << "Engine_Ext_CylinderMultiGrid::DoPreVoltageUpdates() for " << m_IsBase << endl;
if (!m_IsBase)
{
//cerr << "child: volt wait on base " << endl;
m_WaitOnBase->wait(); //wait on base to finisch current sync and/or to finisch voltage updates, than start child voltage updates
}
}
void Engine_Ext_CylinderMultiGrid::DoPostVoltageUpdates()
{
}
void Engine_Ext_CylinderMultiGrid::Apply2Voltages()
{
if (m_IsBase)
{
m_WaitOnBase->wait(); //base voltage updates are done, tell child to start its voltage updates
m_WaitOnChild->wait(); //wait for child to finisch its updates
SyncVoltages(); //child is finisch, run sync and go to current updates next
m_WaitOnSync->wait(); //sync is done... move on and tell child to move on...
}
else
{
m_WaitOnChild->wait(); //child is finished voltage updates, will tell base to run sync
m_WaitOnSync->wait(); //wait for base to finisch sync before going to wait for current updates
}
}
void Engine_Ext_CylinderMultiGrid::SyncVoltages()
{
if (m_Eng_MG==NULL)
{
cerr << "Engine_Ext_CylinderMultiGrid::SyncVoltages: Error engine is NULL" << endl;
return;
}
unsigned int* numLines = m_Eng_MG->numLines;
Engine_Multithread* m_InnerEng = m_Eng_MG->m_InnerEngine;
//interpolate voltages from base engine to child engine...
unsigned int pos[3];
pos[0] = m_Eng_MG->Op_CMG->GetSplitPos()-1;
unsigned int pos1_half = 0;
f4vector v_null;
v_null.f[0] = 0;
v_null.f[1] = 0;
v_null.f[2] = 0;
v_null.f[3] = 0;
for (pos[1]=0; pos[1]<numLines[1]-1; pos[1]+=2)
{
pos1_half = pos[1]/2;
for (pos[2]=0; pos[2]<m_Eng_MG->numVectors; ++pos[2])
{
//r - direczion
m_InnerEng->f4_volt[0][pos[0]][pos1_half][pos[2]].v = v_null.v;
//z - direction
m_InnerEng->f4_volt[2][pos[0]][pos1_half][pos[2]].v = m_Eng_MG->f4_volt[2][pos[0]][pos[1]][pos[2]].v;
//alpha - direction
m_InnerEng->f4_volt[1][pos[0]][pos1_half][pos[2]].v = m_Eng_MG->f4_volt[1][pos[0]][pos[1]][pos[2]].v;
m_InnerEng->f4_volt[1][pos[0]][pos1_half][pos[2]].v += m_Eng_MG->f4_volt[1][pos[0]][pos[1]+1][pos[2]].v;
}
}
}
void Engine_Ext_CylinderMultiGrid::DoPreCurrentUpdates()
{
//cerr << "Engine_Ext_CylinderMultiGrid::DoPreCurrentUpdates() for " << m_IsBase << endl;
if (!m_IsBase)
{
//cerr << "child: curr wait on base " << endl;
m_WaitOnBase->wait(); //wait on base to finisch voltage sync and current updates, than start child current updates
}
}
void Engine_Ext_CylinderMultiGrid::DoPostCurrentUpdates()
{
}
void Engine_Ext_CylinderMultiGrid::Apply2Current()
{
if (m_IsBase)
{
//cerr << "Base: curr wait on base done, wait on sync" << endl;
m_WaitOnBase->wait(); //base current updates are done, tell child to start its current updates
m_WaitOnChild->wait(); //wait for child to finisch its updates
SyncCurrents(); //child is finisch, run sync and go to voltage updates next
m_WaitOnSync->wait(); //sync is done... move on and tell child to move on...
}
else
{
m_WaitOnChild->wait(); //child is finished current updates, will tell base to run sync...
m_WaitOnSync->wait(); //wait for base to finisch sync before going to wait for next voltage updates
//cerr << "Child: curr done, wait on sync" << endl;
}
}
void Engine_Ext_CylinderMultiGrid::SyncCurrents()
{
if (m_Eng_MG==NULL)
{
cerr << "Engine_Ext_CylinderMultiGrid::SyncCurrents: Error engine is NULL" << endl;
return;
}
m_Eng_MG->InterpolCurrChild2Base(m_Eng_MG->Op_CMG->GetSplitPos()-2);
return;
}
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