454 lines
16 KiB
C++
454 lines
16 KiB
C++
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extern "C" void ScaLBL_D3Q7_AAodd_Poisson_ElectricPotential(int *neighborList,int *Map, double *dist, double *Psi, int start, int finish, int Np){
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int n;
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double psi;//electric potential
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double fq;
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int nread;
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int idx;
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for (n=start; n<finish; n++){
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// q=0
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fq = dist[n];
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psi = fq;
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// q=1
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nread = neighborList[n];
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fq = dist[nread];
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psi += fq;
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// q=2
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nread = neighborList[n+Np];
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fq = dist[nread];
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psi += fq;
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// q=3
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nread = neighborList[n+2*Np];
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fq = dist[nread];
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psi += fq;
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// q = 4
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nread = neighborList[n+3*Np];
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fq = dist[nread];
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psi += fq;
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// q=5
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nread = neighborList[n+4*Np];
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fq = dist[nread];
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psi += fq;
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// q = 6
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nread = neighborList[n+5*Np];
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fq = dist[nread];
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psi += fq;
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idx=Map[n];
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Psi[idx] = psi;
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}
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}
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extern "C" void ScaLBL_D3Q7_AAeven_Poisson_ElectricPotential(int *Map, double *dist, double *Psi, int start, int finish, int Np){
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int n;
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double psi;//electric potential
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double fq;
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int idx;
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for (n=start; n<finish; n++){
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// q=0
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fq = dist[n];
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psi = fq;
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// q=1
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fq = dist[2*Np+n];
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psi += fq;
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// q=2
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fq = dist[1*Np+n];
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psi += fq;
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// q=3
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fq = dist[4*Np+n];
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psi += fq;
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// q=4
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fq = dist[3*Np+n];
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psi += fq;
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// q=5
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fq = dist[6*Np+n];
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psi += fq;
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// q=6
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fq = dist[5*Np+n];
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psi += fq;
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idx=Map[n];
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Psi[idx] = psi;
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}
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}
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extern "C" void ScaLBL_D3Q7_AAodd_Poisson(int *neighborList, int *Map, double *dist, double *Den_charge, double *Psi, double *ElectricField, double tau, double epsilon_LB,int start, int finish, int Np){
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int n;
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double psi;//electric potential
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double Ex,Ey,Ez;//electric field
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double rho_e;//local charge density
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double f0,f1,f2,f3,f4,f5,f6;
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int nr1,nr2,nr3,nr4,nr5,nr6;
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double rlx=1.0/tau;
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int idx;
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for (n=start; n<finish; n++){
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//Load data
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rho_e = Den_charge[n];
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rho_e = rho_e/epsilon_LB;
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idx=Map[n];
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psi = Psi[idx];
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// q=0
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f0 = dist[n];
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// q=1
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nr1 = neighborList[n]; // neighbor 2 ( > 10Np => odd part of dist)
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f1 = dist[nr1]; // reading the f1 data into register fq
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nr2 = neighborList[n+Np]; // neighbor 1 ( < 10Np => even part of dist)
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f2 = dist[nr2]; // reading the f2 data into register fq
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// q=3
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nr3 = neighborList[n+2*Np]; // neighbor 4
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f3 = dist[nr3];
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// q = 4
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nr4 = neighborList[n+3*Np]; // neighbor 3
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f4 = dist[nr4];
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// q=5
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nr5 = neighborList[n+4*Np];
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f5 = dist[nr5];
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// q = 6
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nr6 = neighborList[n+5*Np];
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f6 = dist[nr6];
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Ex = (f1-f2)*rlx*4.0;//NOTE the unit of electric field here is V/lu
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Ey = (f3-f4)*rlx*4.0;//factor 4.0 is D3Q7 lattice squared speed of sound
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Ez = (f5-f6)*rlx*4.0;
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ElectricField[n+0*Np] = Ex;
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ElectricField[n+1*Np] = Ey;
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ElectricField[n+2*Np] = Ez;
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// q = 0
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dist[n] = f0*(1.0-rlx) + 0.25*(rlx*psi+rho_e);
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// q = 1
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dist[nr2] = f1*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 2
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dist[nr1] = f2*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 3
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dist[nr4] = f3*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 4
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dist[nr3] = f4*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 5
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dist[nr6] = f5*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 6
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dist[nr5] = f6*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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//........................................................................
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}
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}
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extern "C" void ScaLBL_D3Q7_AAeven_Poisson(int *Map, double *dist, double *Den_charge, double *Psi, double *ElectricField, double tau, double epsilon_LB,int start, int finish, int Np){
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int n;
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double psi;//electric potential
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double Ex,Ey,Ez;//electric field
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double rho_e;//local charge density
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double f0,f1,f2,f3,f4,f5,f6;
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double rlx=1.0/tau;
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int idx;
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for (n=start; n<finish; n++){
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//Load data
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rho_e = Den_charge[n];
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rho_e = rho_e/epsilon_LB;
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idx=Map[n];
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psi = Psi[idx];
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f0 = dist[n];
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f1 = dist[2*Np+n];
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f2 = dist[1*Np+n];
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f3 = dist[4*Np+n];
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f4 = dist[3*Np+n];
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f5 = dist[6*Np+n];
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f6 = dist[5*Np+n];
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Ex = (f1-f2)*rlx*4.0;//NOTE the unit of electric field here is V/lu
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Ey = (f3-f4)*rlx*4.0;//factor 4.0 is D3Q7 lattice squared speed of sound
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Ez = (f5-f6)*rlx*4.0;
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ElectricField[n+0*Np] = Ex;
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ElectricField[n+1*Np] = Ey;
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ElectricField[n+2*Np] = Ez;
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// q = 0
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dist[n] = f0*(1.0-rlx) + 0.25*(rlx*psi+rho_e);
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// q = 1
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dist[1*Np+n] = f1*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 2
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dist[2*Np+n] = f2*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 3
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dist[3*Np+n] = f3*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 4
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dist[4*Np+n] = f4*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 5
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dist[5*Np+n] = f5*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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// q = 6
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dist[6*Np+n] = f6*(1.0-rlx) + 0.125*(rlx*psi+rho_e);
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//........................................................................
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}
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}
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extern "C" void ScaLBL_D3Q7_Poisson_Init(int *Map, double *dist, double *Psi, int start, int finish, int Np)
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{
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int n;
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int ijk;
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for (n=start; n<finish; n++){
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ijk = Map[n];
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dist[0*Np+n] = 0.25*Psi[ijk];
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dist[1*Np+n] = 0.125*Psi[ijk];
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dist[2*Np+n] = 0.125*Psi[ijk];
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dist[3*Np+n] = 0.125*Psi[ijk];
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dist[4*Np+n] = 0.125*Psi[ijk];
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dist[5*Np+n] = 0.125*Psi[ijk];
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dist[6*Np+n] = 0.125*Psi[ijk];
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}
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}
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extern "C" void ScaLBL_D3Q7_PoissonResidualError(int *neighborList, int *Map, double *ResidualError, double *Psi, double *Den_charge, double epsilon_LB,int strideY, int strideZ,int start, int finish){
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int n,nn,ijk;
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double psi;//electric potential
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double rho_e;//local charge density
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// neighbors of electric potential psi
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double m1,m2,m4,m6,m8,m9,m10,m11,m12,m13,m14,m15,m16,m17,m18;
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double m3,m5,m7;
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double psi_Laplacian;
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double residual_error;
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for (n=start; n<finish; n++){
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//Load data
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rho_e = Den_charge[n];
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ijk=Map[n];
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psi = Psi[ijk];
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// COMPUTE THE COLOR GRADIENT
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//........................................................................
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//.................Read Phase Indicator Values............................
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//........................................................................
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nn = ijk-1; // neighbor index (get convention)
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m1 = Psi[nn]; // get neighbor for phi - 1
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//........................................................................
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nn = ijk+1; // neighbor index (get convention)
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m2 = Psi[nn]; // get neighbor for phi - 2
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//........................................................................
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nn = ijk-strideY; // neighbor index (get convention)
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m3 = Psi[nn]; // get neighbor for phi - 3
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//........................................................................
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nn = ijk+strideY; // neighbor index (get convention)
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m4 = Psi[nn]; // get neighbor for phi - 4
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//........................................................................
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nn = ijk-strideZ; // neighbor index (get convention)
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m5 = Psi[nn]; // get neighbor for phi - 5
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//........................................................................
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nn = ijk+strideZ; // neighbor index (get convention)
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m6 = Psi[nn]; // get neighbor for phi - 6
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//........................................................................
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nn = ijk-strideY-1; // neighbor index (get convention)
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m7 = Psi[nn]; // get neighbor for phi - 7
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//........................................................................
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nn = ijk+strideY+1; // neighbor index (get convention)
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m8 = Psi[nn]; // get neighbor for phi - 8
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//........................................................................
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nn = ijk+strideY-1; // neighbor index (get convention)
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m9 = Psi[nn]; // get neighbor for phi - 9
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//........................................................................
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nn = ijk-strideY+1; // neighbor index (get convention)
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m10 = Psi[nn]; // get neighbor for phi - 10
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//........................................................................
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nn = ijk-strideZ-1; // neighbor index (get convention)
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m11 = Psi[nn]; // get neighbor for phi - 11
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//........................................................................
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nn = ijk+strideZ+1; // neighbor index (get convention)
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m12 = Psi[nn]; // get neighbor for phi - 12
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//........................................................................
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nn = ijk+strideZ-1; // neighbor index (get convention)
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m13 = Psi[nn]; // get neighbor for phi - 13
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//........................................................................
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nn = ijk-strideZ+1; // neighbor index (get convention)
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m14 = Psi[nn]; // get neighbor for phi - 14
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//........................................................................
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nn = ijk-strideZ-strideY; // neighbor index (get convention)
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m15 = Psi[nn]; // get neighbor for phi - 15
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//........................................................................
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nn = ijk+strideZ+strideY; // neighbor index (get convention)
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m16 = Psi[nn]; // get neighbor for phi - 16
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//........................................................................
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nn = ijk+strideZ-strideY; // neighbor index (get convention)
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m17 = Psi[nn]; // get neighbor for phi - 17
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//........................................................................
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nn = ijk-strideZ+strideY; // neighbor index (get convention)
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m18 = Psi[nn]; // get neighbor for phi - 18
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psi_Laplacian = 2.0*3.0/18.0*(m1+m2+m3+m4+m5+m6-6*psi+0.5*(m7+m8+m9+m10+m11+m12+m13+m14+m15+m16+m17+m18-12*psi));//Laplacian of electric potential
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residual_error = psi_Laplacian+rho_e/epsilon_LB;
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ResidualError[n] = residual_error;
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}
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}
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//extern "C" void ScaLBL_D3Q7_Poisson_ElectricField(int *neighborList, int *Map, signed char *ID, double *Psi, double *ElectricField, int SolidBC,
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// int strideY, int strideZ,int start, int finish, int Np){
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//
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// int n,nn;
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// int ijk;
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// int id;
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// // distributions
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// double m1,m2,m3,m4,m5,m6,m7,m8,m9;
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// double m10,m11,m12,m13,m14,m15,m16,m17,m18;
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// double nx,ny,nz;
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//
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// for (n=start; n<finish; n++){
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//
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// // Get the 1D index based on regular data layout
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// ijk = Map[n];
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// // COMPUTE THE COLOR GRADIENT
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// //........................................................................
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// //.................Read Phase Indicator Values............................
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// //........................................................................
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// nn = ijk-1; // neighbor index (get convention)
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// id = ID[nn];
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// m1 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 1
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// //........................................................................
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// nn = ijk+1; // neighbor index (get convention)
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// id = ID[nn];
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// m2 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 2
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// //........................................................................
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// nn = ijk-strideY; // neighbor index (get convention)
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// id = ID[nn];
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// m3 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 3
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// //........................................................................
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// nn = ijk+strideY; // neighbor index (get convention)
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// id = ID[nn];
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// m4 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 4
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// //........................................................................
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// nn = ijk-strideZ; // neighbor index (get convention)
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// id = ID[nn];
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// m5 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 5
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// //........................................................................
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// nn = ijk+strideZ; // neighbor index (get convention)
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// id = ID[nn];
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// m6 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 6
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// //........................................................................
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// nn = ijk-strideY-1; // neighbor index (get convention)
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// id = ID[nn];
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// m7 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 7
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// //........................................................................
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// nn = ijk+strideY+1; // neighbor index (get convention)
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// id = ID[nn];
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// m8 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 8
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// //........................................................................
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// nn = ijk+strideY-1; // neighbor index (get convention)
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// id = ID[nn];
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// m9 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 9
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// //........................................................................
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// nn = ijk-strideY+1; // neighbor index (get convention)
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// id = ID[nn];
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// m10 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 10
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// //........................................................................
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// nn = ijk-strideZ-1; // neighbor index (get convention)
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// id = ID[nn];
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// m11 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 11
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// //........................................................................
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// nn = ijk+strideZ+1; // neighbor index (get convention)
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// id = ID[nn];
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// m12 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 12
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// //........................................................................
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// nn = ijk+strideZ-1; // neighbor index (get convention)
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// id = ID[nn];
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// m13 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 13
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// //........................................................................
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// nn = ijk-strideZ+1; // neighbor index (get convention)
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// id = ID[nn];
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// m14 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 14
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// //........................................................................
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// nn = ijk-strideZ-strideY; // neighbor index (get convention)
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// id = ID[nn];
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// m15 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 15
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// //........................................................................
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// nn = ijk+strideZ+strideY; // neighbor index (get convention)
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// id = ID[nn];
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// m16 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 16
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// //........................................................................
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// nn = ijk+strideZ-strideY; // neighbor index (get convention)
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// id = ID[nn];
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// m17 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 17
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// //........................................................................
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// nn = ijk-strideZ+strideY; // neighbor index (get convention)
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// id = ID[nn];
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// m18 = SolidBC==1 ? Psi[nn] : Psi[nn]*(id>0)+Psi[ijk]*(id<=0);// get neighbor for phi - 18
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// //............Compute the Color Gradient...................................
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// //nx = 1.f/6.f*(m1-m2+0.5*(m7-m8+m9-m10+m11-m12+m13-m14));
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// //ny = 1.f/6.f*(m3-m4+0.5*(m7-m8-m9+m10+m15-m16+m17-m18));
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// //nz = 1.f/6.f*(m5-m6+0.5*(m11-m12-m13+m14+m15-m16-m17+m18));
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// nx = 1.f/6.f*(m1-m2);//but looks like it needs to multiply another factor of 3
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// ny = 1.f/6.f*(m3-m4);
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// nz = 1.f/6.f*(m5-m6);
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//
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// ElectricField[n] = nx;
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// ElectricField[Np+n] = ny;
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// ElectricField[2*Np+n] = nz;
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// }
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//}
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//extern "C" void ScaLBL_D3Q7_Poisson_getElectricField(double *dist, double *ElectricField, double tau, int Np){
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// int n;
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// // distributions
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// double f1,f2,f3,f4,f5,f6;
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// double Ex,Ey,Ez;
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// double rlx=1.0/tau;
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//
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// for (n=0; n<Np; n++){
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// //........................................................................
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// // Registers to store the distributions
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// //........................................................................
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// f1 = dist[Np+n];
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// f2 = dist[2*Np+n];
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// f3 = dist[3*Np+n];
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// f4 = dist[4*Np+n];
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// f5 = dist[5*Np+n];
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// f6 = dist[6*Np+n];
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// //.................Compute the Electric Field...................................
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// //Ex = (f1-f2)*rlx*4.5;//NOTE the unit of electric field here is V/lu
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// //Ey = (f3-f4)*rlx*4.5;
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// //Ez = (f5-f6)*rlx*4.5;
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// Ex = (f1-f2)*rlx*4.0;//NOTE the unit of electric field here is V/lu
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// Ey = (f3-f4)*rlx*4.0;
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// Ez = (f5-f6)*rlx*4.0;
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// //..................Write the Electric Field.....................................
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// ElectricField[0*Np+n] = Ex;
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// ElectricField[1*Np+n] = Ey;
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// ElectricField[2*Np+n] = Ez;
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// //........................................................................
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// }
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//}
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