Hello,
I am using IllinoisGRMHD with the test with nsns_test.par in https://bitbucket.org/zach_etienne/wvuthorns_diagnostics/src/master/NSNS_par... .
The simulation runs well until t~5300 and an error occurs. The error message is like this:
WARNING level 1 from host nid02210 process 0 while executing schedule bin particle_tracerET, routine particle_tracerET::DoOneRK4StepForParticleTracerET in thorn AEILocalInterp, file /global/u1/c/chlin/et/Cactus/arrangements/Numerical/AEILocalInterp/src/Lagrange-tensor-product/../template.c:1109: -> CCTK_InterpLocalUniform(): interpolation point is either outside the grid, or inside but too close to the grid boundary! (this may be caused by a global interpolation with driver::ghost_size too small) 0-origin interpolation point number pt=0 of N_interp_points=1 interpolation point (x,y,z)=(-157.725,-576.349,-99.2027) grid x_min(delta_x)x_max = -576(18)576 grid y_min(delta_y)y_max = -576(18)54 grid z_min(delta_z)z_max = -576(18)54
WARNING level 1 from host nid02210 process 0 while executing schedule bin particle_tracerET, routine particle_tracerET::DoOneRK4StepForParticleTracerET in thorn particle_tracerET, file /global/u1/c/chlin/et/Cactus/arrangements/WVUThorns_Diagnostics/particle_tracerET/src/Interpolate_velocities_at_particle_positions.C:131: -> interpolation screwed up WARNING level 1 from host nid02210 process 1 while executing schedule bin particle_tracerET, routine particle_tracerET::DoOneRK4StepForParticleTracerET in thorn particle_tracerET, file /global/u1/c/chlin/et/Cactus/arrangements/WVUThorns_Diagnostics/particle_tracerET/src/Interpolate_velocities_at_particle_positions.C:131: -> interpolation screwed up srun: error: nid02211: tasks 2-3: Exited with exit code 1 srun: Terminating job step 21753671.0 srun: error: nid02210: tasks 0-1: Exited with exit code 1
I think maybe t can be avoided by decreasing the timestep so that the tracer particle would not move too fast to make the interpolation screwed up but I am not sure. So what I want to ask is :
1. It this error can be avoided by decreasing the timestep ? 2. If so, how can I decrease the timestep in parameter file (or in other places)?
Thank you. Best regards, Chia-Hui