299 lines
8.7 KiB
C++
299 lines
8.7 KiB
C++
/*
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* Copyright (C) 2010 Thorsten Liebig (Thorsten.Liebig@gmx.de)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "engine.h"
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#include "Common/processfields.h"
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#include "operator_cylinder.h"
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#include "extensions/operator_extension.h"
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#include "extensions/operator_ext_cylinder.h"
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Operator_Cylinder* Operator_Cylinder::New(unsigned int numThreads)
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{
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cout << "Create cylindrical FDTD operator" << endl;
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Operator_Cylinder* op = new Operator_Cylinder();
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op->setNumThreads(numThreads);
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op->Init();
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return op;
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}
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Operator_Cylinder::Operator_Cylinder() : Operator_Multithread()
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{
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m_MeshType = CYLINDRICAL;
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}
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Operator_Cylinder::~Operator_Cylinder()
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{
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}
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void Operator_Cylinder::Init()
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{
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CC_closedAlpha = false;
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CC_R0_included = false;
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Operator_Multithread::Init();
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}
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double Operator_Cylinder::GetRawDiscDelta(int ny, const int pos) const
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{
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if (CC_closedAlpha && ny==1 && pos==-1)
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{
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// cerr << (discLines[1][numLines[1]-2] - discLines[1][numLines[1]-3]) << " vs " << Operator_Multithread::GetRawDiscDelta(ny,pos) << endl;
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return (discLines[1][numLines[1]-2] - discLines[1][numLines[1]-3]);
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}
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return Operator_Multithread::GetRawDiscDelta(ny,pos);
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}
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double Operator_Cylinder::GetMaterial(int ny, const double* coords, int MatType, bool markAsUsed) const
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{
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double l_coords[] = {coords[0],coords[1],coords[2]};
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if (CC_closedAlpha && (coords[1]>GetDiscLine(1,0,false)+2*PI))
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l_coords[1]-=2*PI;
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if (CC_closedAlpha && (coords[1]<GetDiscLine(1,0,false)))
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l_coords[1] += 2*PI;
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return Operator_Multithread::GetMaterial(ny,l_coords,MatType,markAsUsed);
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}
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int Operator_Cylinder::CalcECOperator( DebugFlags debugFlags )
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{
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// debugs only work with the native vector dumps
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bool natDump = g_settings.NativeFieldDumps();
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g_settings.SetNativeFieldDumps(true);
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int rc = Operator_Multithread::CalcECOperator(debugFlags);
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// reset original settings
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g_settings.SetNativeFieldDumps(natDump);
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return rc;
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}
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inline unsigned int Operator_Cylinder::GetNumberOfLines(int ny) const
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{
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//this is necessary for a correct field processing... cylindrical engine has to reset this by adding +1
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if (CC_closedAlpha && ny==1)
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return Operator_Multithread::GetNumberOfLines(ny)-2;
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return Operator_Multithread::GetNumberOfLines(ny);
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}
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string Operator_Cylinder::GetDirName(int ny) const
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{
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if (ny==0) return "rho";
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if (ny==1) return "alpha";
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if (ny==2) return "z";
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return "";
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}
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bool Operator_Cylinder::GetYeeCoords(int ny, unsigned int pos[3], double* coords, bool dualMesh) const
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{
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if (CC_closedAlpha && (coords[1]>GetDiscLine(1,0,false)+2*PI))
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coords[1]-=2*PI;
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if (CC_closedAlpha && (coords[1]<GetDiscLine(1,0,false)))
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coords[1]+=2*PI;
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return Operator_Multithread::GetYeeCoords(ny,pos,coords,dualMesh);
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}
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double Operator_Cylinder::GetNodeWidth(int ny, const unsigned int pos[3], bool dualMesh) const
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{
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if ((ny<0) || (ny>2)) return 0.0;
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if (pos[ny]>=numLines[ny]) return 0.0;
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double width = Operator_Multithread::GetEdgeLength(ny,pos,!dualMesh);
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if (ny==1)
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width *= GetDiscLine(0,pos[0],dualMesh);
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return width;
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}
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double Operator_Cylinder::GetNodeWidth(int ny, const int pos[3], bool dualMesh) const
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{
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if ( (pos[0]<0) || (pos[1]<0 && CC_closedAlpha==false) || (pos[2]<0) )
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return 0.0;
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unsigned int uiPos[]={pos[0],pos[1],pos[2]};
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if (pos[1]<0 && CC_closedAlpha==true)
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uiPos[1]+=numLines[1]-2;
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return GetNodeWidth(ny, uiPos, dualMesh);
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}
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double Operator_Cylinder::GetNodeArea(int ny, const unsigned int pos[3], bool dualMesh) const
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{
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if (pos[ny]>=numLines[ny]) return 0.0;
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if (pos[0]>=numLines[0]) return 0.0;
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if (ny==2)
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{
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double da = Operator_Multithread::GetEdgeLength(1,pos,dualMesh)/gridDelta;
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double r1,r2;
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if (dualMesh)
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{
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r1 = GetDiscLine(0,pos[0],false)*gridDelta;
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r2 = r1 + GetEdgeLength(0,pos,false);
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}
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else
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{
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r2 = GetDiscLine(0,pos[0],!dualMesh)*gridDelta;
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r1 = r2 - GetEdgeLength(0,pos,true);
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}
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if (r1<=0)
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return da/2 * pow(r2,2);
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else
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return da/2* (pow(r2,2) - pow(r1,2));
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}
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return Operator_Multithread::GetNodeArea(ny,pos,dualMesh);
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}
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double Operator_Cylinder::GetNodeArea(int ny, const int pos[3], bool dualMesh) const
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{
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if ( (pos[0]<0) || (pos[1]<0 && CC_closedAlpha==false) || (pos[2]<0) )
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return 0.0;
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unsigned int uiPos[]={pos[0],pos[1],pos[2]};
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if (pos[1]<0 && CC_closedAlpha==true)
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uiPos[1]+=numLines[1]-2;
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return GetNodeArea(ny, uiPos, dualMesh);
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}
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double Operator_Cylinder::GetEdgeLength(int ny, const unsigned int pos[3], bool dualMesh) const
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{
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double length = Operator_Multithread::GetEdgeLength(ny,pos,dualMesh);
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if (ny!=1)
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return length;
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return length * GetDiscLine(0,pos[0],dualMesh);
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}
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double Operator_Cylinder::GetCellVolume(const unsigned int pos[3], bool dualMesh) const
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{
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return GetEdgeArea(2,pos,dualMesh)*GetEdgeLength(2,pos,dualMesh);
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}
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double Operator_Cylinder::GetEdgeArea(int ny, const unsigned int pos[3], bool dualMesh) const
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{
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if (ny!=0)
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return GetNodeArea(ny,pos,dualMesh);
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return GetEdgeLength(1,pos,!dualMesh) * GetEdgeLength(2,pos,!dualMesh);
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}
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bool Operator_Cylinder::SetupCSXGrid(CSRectGrid* grid)
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{
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unsigned int alphaNum;
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double* alphaLines = NULL;
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alphaLines = grid->GetLines(1,alphaLines,alphaNum,true);
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double minmaxA = fabs(alphaLines[alphaNum-1]-alphaLines[0]);
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if (fabs(minmaxA-2*PI) < OPERATOR_CYLINDER_CLOSED_ALPHA_THRESHOLD)
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{
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if (g_settings.GetVerboseLevel()>0)
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cout << "Operator_Cylinder::SetupCSXGrid: Alpha is a full 2*PI => closed Cylinder..." << endl;
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CC_closedAlpha = true;
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grid->SetLine(1,alphaNum-1,2*PI+alphaLines[0]);
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grid->AddDiscLine(1,2*PI+alphaLines[1]);
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}
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else if (minmaxA>2*PI)
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{
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cerr << "Operator_Cylinder::SetupCSXGrid: Alpha Max-Min must not be larger than 2*PI!!!" << endl;
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Reset();
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return false;
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}
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else
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{
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CC_closedAlpha=false;
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}
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CC_R0_included = false;
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if (grid->GetLine(0,0)<0)
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{
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cerr << "Operator_Cylinder::SetupCSXGrid: r<0 not allowed in Cylinder Coordinates!!!" << endl;
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Reset();
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return false;
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}
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else if (grid->GetLine(0,0)==0.0)
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{
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if (g_settings.GetVerboseLevel()>0)
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cout << "Operator_Cylinder::SetupCSXGrid: r=0 included..." << endl;
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CC_R0_included = CC_closedAlpha; //needed for correct ec-calculation, deactivate if closed cylinder is false... --> E_r = 0 anyways
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// use conservative timestep for a mesh including the r==0 singularity
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m_TimeStepVar = 1;
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}
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#ifdef MPI_SUPPORT
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// Setup an MPI split in alpha direction for a closed cylinder
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CC_MPI_Alpha = false;
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if ((m_NeighborUp[1]>=0) || (m_NeighborDown[1]>=0)) //check for MPI split in alpha direction
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{
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double minmaxA = 2*PI;// fabs(m_OrigDiscLines[1][m_OrigNumLines[1]-1]-m_OrigDiscLines[1][0]);
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if (fabs(minmaxA-2*PI) < OPERATOR_CYLINDER_CLOSED_ALPHA_THRESHOLD) //check for closed alpha MPI split
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{
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CC_MPI_Alpha = true;
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if (m_OrigDiscLines[0][0]==0)
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{
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cerr << "Operator_Cylinder::SetupCSXGrid: Error: MPI split in alpha direction for closed cylinder including r==0 is currently not supported! Exit!" << endl;
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exit(-2);
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}
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if (m_NeighborUp[1]<0) //check if this process is at the alpha-end
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{
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grid->SetLine(1,alphaNum-1,2*PI+m_OrigDiscLines[1][0]);
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grid->AddDiscLine(1,2*PI+m_OrigDiscLines[1][1]);
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SetNeighborUp(1,m_ProcTable[m_ProcTablePos[0]][0][m_ProcTablePos[2]]);
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}
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if (m_NeighborDown[1]<0) //check if this process is at the alpha-start
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{
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SetNeighborDown(1,m_ProcTable[m_ProcTablePos[0]][m_SplitNumber[1]-1][m_ProcTablePos[2]]);
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}
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//Note: the process table will not reflect this up/down neighbors necessary for a closed cylinder
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}
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}
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#endif
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if (Operator_Multithread::SetupCSXGrid(grid)==false)
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return false;
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if (CC_closedAlpha || CC_R0_included)
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this->AddExtension(new Operator_Ext_Cylinder(this));
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return true;
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}
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void Operator_Cylinder::ApplyMagneticBC(bool* dirs)
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{
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if (dirs==NULL) return;
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if (CC_closedAlpha)
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{
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dirs[2]=0;
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dirs[3]=0; //no PMC in alpha directions...
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}
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if (CC_R0_included)
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{
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dirs[0]=0; //no PMC in r_min directions...
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}
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Operator_Multithread::ApplyMagneticBC(dirs);
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}
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void Operator_Cylinder::AddExtension(Operator_Extension* op_ext)
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{
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if (op_ext->IsCylinderCoordsSave(CC_closedAlpha, CC_R0_included))
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m_Op_exts.push_back(op_ext);
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else
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cerr << "Operator_Cylinder::AddExtension: Warning: Operator extension \"" << op_ext->GetExtensionName() << "\" is not compatible with cylinder-coords!! skipping...!" << endl;
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}
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