[KleinMoretti]

Hello，
I didn't find the code about gradients updating on ghost points. In the CNEMOEulerSolver, there is the object "node_infty", which is defined by the following statement.

node_infty = new CNEMOEulerVariable(Pressure_Inf, MassFrac_Inf, Mvec_Inf,
Temperature_Inf, Temperature_ve_Inf,
1, nDim, nVar, nPrimVar, nPrimVarGrad,
config, FluidModel);
node_infty->SetPrimVar(0, FluidModel);

It just seems to specify the primitive variables information on node_infty. The gradient information seems to be set by the default value 0.

Under the path \SU2_CFD\include\gradients\..., I found the files that update the gradients, but they don't update the gradients on ghost points.

I would be very grateful if anyone could answer this for me！

[bigfootedrockmidget]

Why do you need gradients on ghost points? The ghost points are introduced so you can compute gradients on boundary nodes. To compute boundary gradients, the halo nodes only need to contain values, not gradients.