diff options
Diffstat (limited to 'Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.cpp')
| -rw-r--r-- | Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.cpp | 58 |
1 files changed, 3 insertions, 55 deletions
diff --git a/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.cpp b/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.cpp index 3da0ef453..d45b01bda 100644 --- a/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.cpp +++ b/Source/FieldSolver/SpectralSolver/SpectralAlgorithms/PsatdAlgorithm.cpp @@ -22,61 +22,8 @@ PsatdAlgorithm::PsatdAlgorithm(const SpectralKSpace& spectral_kspace, X2_coef = SpectralCoefficients(ba, dm, 1, 0); X3_coef = SpectralCoefficients(ba, dm, 1, 0); - InitializeCoefficience(spectral_kspace, dm, dt); + InitializeSpectralCoefficients(spectral_kspace, dm, dt); } -// // Fill them with the right values: -// // Loop over boxes and allocate the corresponding coefficients -// // for each box owned by the local MPI proc -// for (MFIter mfi(ba, dm); mfi.isValid(); ++mfi){ -// -// //const Box& bx = ba[mfi]; -// const Box bx = ba[mfi]; -// -// // Extract pointers for the k vectors -// const Real* modified_kx = modified_kx_vec[mfi].dataPtr(); -//#if (AMREX_SPACEDIM==3) -// const Real* modified_ky = modified_ky_vec[mfi].dataPtr(); -//#endif -// const Real* modified_kz = modified_kz_vec[mfi].dataPtr(); -// // Extract arrays for the coefficients -// Array4<Real> C = C_coef[mfi].array(); -// Array4<Real> S_ck = S_ck_coef[mfi].array(); -// Array4<Real> X1 = X1_coef[mfi].array(); -// Array4<Real> X2 = X2_coef[mfi].array(); -// Array4<Real> X3 = X3_coef[mfi].array(); -// -// // Loop over indices within one box -// ParallelFor(bx, -// [=] AMREX_GPU_DEVICE(int i, int j, int k) noexcept -// { -// // Calculate norm of vector -// const Real k_norm = std::sqrt( -// std::pow(modified_kx[i], 2) + -//#if (AMREX_SPACEDIM==3) -// std::pow(modified_ky[j], 2) + -// std::pow(modified_kz[k], 2)); -//#else -// std::pow(modified_kz[j], 2)); -//#endif -// -// // Calculate coefficients -// constexpr Real c = PhysConst::c; -// constexpr Real ep0 = PhysConst::ep0; -// if (k_norm != 0){ -// C(i,j,k) = std::cos(c*k_norm*dt); -// S_ck(i,j,k) = std::sin(c*k_norm*dt)/(c*k_norm); -// X1(i,j,k) = (1. - C(i,j,k))/(ep0 * c*c * k_norm*k_norm); -// X2(i,j,k) = (1. - S_ck(i,j,k)/dt)/(ep0 * k_norm*k_norm); -// X3(i,j,k) = (C(i,j,k) - S_ck(i,j,k)/dt)/(ep0 * k_norm*k_norm); -// } else { // Handle k_norm = 0, by using the analytical limit -// C(i,j,k) = 1.; -// S_ck(i,j,k) = dt; -// X1(i,j,k) = 0.5 * dt*dt / ep0; -// X2(i,j,k) = c*c * dt*dt / (6.*ep0); -// X3(i,j,k) = - c*c * dt*dt / (3.*ep0); -// } -// }); -// } /* Advance the E and B field in spectral space (stored in `f`) * over one time step */ @@ -139,6 +86,7 @@ PsatdAlgorithm::pushSpectralFields(SpectralFieldData& f) const{ const Real X2 = X2_arr(i,j,k); const Real X3 = X3_arr(i,j,k); + // Update E (see WarpX online documentation: theory section) fields(i,j,k,Idx::Ex) = C*Ex_old + S_ck*(c2*I*(ky*Bz_old - kz*By_old) - inv_ep0*Jx) @@ -163,7 +111,7 @@ PsatdAlgorithm::pushSpectralFields(SpectralFieldData& f) const{ } }; -void PsatdAlgorithm::InitializeCoefficience(const SpectralKSpace& spectral_kspace, +void PsatdAlgorithm::InitializeSpectralCoefficients(const SpectralKSpace& spectral_kspace, const amrex::DistributionMapping& dm, const amrex::Real dt) { |