mpiexec unable to connect to smpd service - Failed RpcCliCreateContext error 1722

[PunyaTaluka123]

I am encountering an issue where mpiexec fails to connect to the smpd service on my local machine. This results in an RPC error. I have tried several troubleshooting steps (restarting smpd, reinstalling MPI, checking firewall settings, etc.) but have not been able to resolve the problem.

ERROR: Failed RpcCliCreateContext error 1722

Aborting: mpiexec on LAPTOP-EQHFVJML is unable to connect to the smpd service on localhost:11:8677
Other MPI error, error stack:
connect failed - The RPC server is unavailable. (errno 1722)

[tremblerz]

Thanks for reporting! Can you please share the command you ran?

[PunyaTaluka123]

mpiexec -np 10 -host localhost:11 python main.py

[tremblerz]

Can you please try running the program with GRPC using the doc here - https://aidecentralized.github.io/sonar/getting-started/grpc/#running-the-code

Make sure you change the sys_config file to use the GRPC config and then run the commands mentioned above

[PunyaTaluka123]

Changed the sys.config file for GRPC protocol and ran the following cmd:-
python main_grpc.py -n 20 -host randomhost42.mit.edu

This error comes up then:-
RPC failed: <_InactiveRpcError of RPC that terminated with:
status = StatusCode.UNAVAILABLE
details = "failed to connect to all addresses; last error: UNAVAILABLE: ipv4:127.0.0.1:50050: Connection refused"
debug_error_string = "UNKNOWN:Error received from peer {created_time:"2024-10-10T08:12:49.5940777+00:00", grpc_status:14, grpc_message:"failed to connect to all addresses; last error: UNAVAILABLE: ipv4:127.0.0.1:50050: Connection refused"}"