These data define the position of each probe on the domain by means of a coordinate system $(X_i, X_j,X_k)$ related to the geometry chosen (cartesian or cylindrical configuration, see the namelist “Geometric_Layout”).
&Probe_Location Xi=-0.50 , Xj= 0.0 , Xk= 0.0 /
&Probe_Location Xi=-0.70 , Xj= 0.2 , Xk= 0.0 /
&Probe_Location Xi=-0.80 , Xj= 0.03, Xk= 0.4 /
You also need to set the quantities you want to monitor in the namelist “Probe_Quantities_Enabled” and the field Probe_Recording_Rate in the namelist “Simulation_Management”
The coordinates are related to the geometry chosen (cartesian or cylindrical configuration, see the namelist “Geometric_Layout”).
The number of probes is limited at 1000 by default on the whole computational domain. When the simulation is performed with a MPI domain decomposition approach, this limit is valid for each MPI subdomain.