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#include <random>
#include <AMReX.H>
#include <AMReX_ParmParse.H>
#include <AMReX_Vector.H>
#include <AMReX_MultiFab.H>
#include <AMReX_MultiFabUtil.H>
#include <AMReX_PlotFileUtil.H>
#include <WarpX_f.H>
#include <WarpXConst.H>
using namespace amrex;
int main(int argc, char* argv[])
{
amrex::Initialize(argc,argv);
{
long nox=1, noy=1, noz=1;
{
ParmParse pp("interpolation");
pp.query("nox", nox);
pp.query("noy", noy);
pp.query("noz", noz);
if (nox != noy || nox != noz) {
amrex::Abort("warpx.nox, noy and noz must be equal");
}
if (nox < 1) {
amrex::Abort("warpx.nox must >= 1");
}
}
Real charge = -PhysConst::q_e;
Real weight = 10.0;
Real dt = 1.e-10;
long current_deposition_algo = 3;
{
ParmParse pp("algo");
pp.query("current_deposition", current_deposition_algo);
}
long nx = 64, ny = 64, nz = 64;
long np = nx*ny*nz;
Real xyzmin[3] = {0.5, 1.4, 0.3};
Vector<Real> xp, yp, zp, uxp, uyp, uzp, giv, wp;
Real dx[3] = {1.0/nx, 1.0/ny, 1.0/nz};
std::mt19937 rand_eng(42);
std::uniform_real_distribution<Real> rand_dis(0.0,1.0);
for (int k = 0; k < nz; ++k) {
for (int j = 0; j < ny; ++j) {
for (int i = 0; i < nx; ++i) {
Real x0 = xyzmin[0] + i*dx[0];
Real y0 = xyzmin[1] + j*dx[1];
Real z0 = xyzmin[2] + k*dx[2];
xp.push_back(x0 + dx[0]*rand_dis(rand_eng));
yp.push_back(y0 + dx[1]*rand_dis(rand_eng));
zp.push_back(z0 + dx[2]*rand_dis(rand_eng));
wp.push_back(weight);
Real vx,vy,vz,v2;
do {
vx = rand_dis(rand_eng);
vy = rand_dis(rand_eng);
vz = rand_dis(rand_eng);
v2 = vx*vx + vy*vy + vz*vz;
} while(v2 >= 0.999999);
Real gam = 1.0/sqrt(1.0-v2);
uxp.push_back(vx*gam);
uyp.push_back(vy*gam);
uzp.push_back(vz*gam);
giv.push_back(1.0/gam);
}
}
}
const int ng = nox;
Box domain_box {IntVect{D_DECL(0,0,0)}, IntVect{D_DECL(nx-1,ny-1,nz-1)}};
#if (BL_SPACEDIM == 3)
IntVect jx_nodal_flag(0,1,1);
IntVect jy_nodal_flag(1,0,1);
IntVect jz_nodal_flag(1,1,0);
#elif (BL_SPACEDIM == 2)
IntVect jx_nodal_flag(0,1); // x is the first dimension to AMReX
IntVect jy_nodal_flag(1,1); // y is the missing dimension to 2D AMReX
IntVect jz_nodal_flag(1,0); // z is the second dimension to 2D AMReX
#endif
BoxArray ba{domain_box};
DistributionMapping dm{ba};
MultiFab jx(amrex::convert(ba,jx_nodal_flag), dm, 1, ng);
MultiFab jy(amrex::convert(ba,jy_nodal_flag), dm, 1, ng);
MultiFab jz(amrex::convert(ba,jz_nodal_flag), dm, 1, ng);
FArrayBox& jxfab = jx[0];
FArrayBox& jyfab = jy[0];
FArrayBox& jzfab = jz[0];
jxfab.setVal(0.0);
jyfab.setVal(0.0);
jzfab.setVal(0.0);
long ngx = ng;
long ngy = ng;
long ngz = ng;
long lvect = 8;
warpx_current_deposition(jxfab.dataPtr(), &ngx, jxfab.length(),
jyfab.dataPtr(), &ngy, jyfab.length(),
jzfab.dataPtr(), &ngz, jzfab.length(),
&np, xp.data(), yp.data(), zp.data(),
uxp.data(), uyp.data(), uzp.data(),
giv.data(), wp.data(), &charge,
&xyzmin[0], &xyzmin[1], &xyzmin[2],
&dt, &dx[0], &dx[1], &dx[2],
&nox, &noy,&noz,
&lvect, ¤t_deposition_algo);
MultiFab plotmf(ba, dm, 3, 0);
amrex::average_edge_to_cellcenter(plotmf, 0, {&jx, &jy, &jz});
RealBox realbox{domain_box, dx, xyzmin};
int is_per[3] = {0,0,0};
Geometry geom{domain_box, &realbox, 0, is_per};
std::string plotname{"plotfiles/plt00000"};
Vector<std::string> varnames{"jx", "jy", "jz"};
amrex::WriteSingleLevelPlotfile(plotname, plotmf, varnames, geom, 0.0, 0);
}
amrex::Finalize();
}
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