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amrvac / AGILE-experimental

MPI-AMRVAC: A Parallel Adaptive Mesh Refinement Framework
https://amrvac.org/
GNU General Public License v3.0
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Getting nsight compute to work with amrvac #16

Open oporth opened 3 weeks ago

oporth commented 3 weeks ago

currently I cannot use Nsight compute with amrvac (ncu or ncu-ui). It works fine the the toycode though.
The issue is that amrvac needs to be run with mpirun and Nsight compute needs to attach to the amrvac process that is launched from mpi.

How do we use Nsight compute with amrvac???

loostrum commented 3 weeks ago

I only know of a single-node solution, which is to run ncu <options> mpirun amrvac. I'm not 100% sure this works with Nsight Compute though, it does work with Nsight Systems (which is MPI-aware).

oporth commented 3 weeks ago

I think I figured it out, just launching ncu-ui with mpi, e.g. mpirun -np 1 ncu-ui

oporth commented 2 weeks ago

Hi Leon, thanks I'll try that out as well. I still had issues getting a usable trace analysis out of it (its not showing me the functions in the amrvac process). So if someone has a good workflow for profiling, we should share that!