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PrincetonUniversity / athena

Athena++ radiation GRMHD code and adaptive mesh refinement (AMR) framework
https://www.athena-astro.app
BSD 3-Clause "New" or "Revised" License
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Confusion while running 'athinput.magnetized_inflow' #608

Closed adamdarx closed 2 months ago

adamdarx commented 2 months ago

When I tried to explore /athena/inputs/mhd_gr/athinput.magnetized_inflow and configured as follows:

python3 configure.py --prob=gr_mhd_inflow -g -b --coord=kerr-schild

And it did successfully go thru the 'make' step and i got a corresponding executable athena. However, when I typed following code into the shell:

~/athena/bin/athena -i ~/athena/inputs/mhd_gr/athinput.magnetized_inflow

It reported a bug like:

### FATAL ERROR in Problem Generator
file magnetized_inflow.dat cannot be opened

I've just notice that in 'input file' it seems I need to provide magnetized_inflow.dat myself. But how should I get a magnetized_inflow.dat?

c-white commented 2 months ago

This problem is meant to implement the 2D equilibrium state described in Gammie 1999, ApJ 522 L57. Athena expects to read the profile of this state as written into a text file by a code associated with that paper, currently the last one listed here.