5.5. MPI#
MPI helper functionality.
- mirgecom.mpi.mpi_entry_point(func)[source]#
Return a decorator that designates a function as the “main” function for MPI.
Declares that all MPI code that will be executed on the current process is contained within func. Calls MPI_Init()/MPI_Init_thread() and sets up a hook to call MPI_Finalize() on exit.
- Return type:
- mirgecom.mpi.pudb_remote_debug_on_single_rank(func)[source]#
Designate a function func to be debugged with
pudb
on rank 0.To use it, add this decorator to the main function that you want to debug, after the
mpi_entry_point()
decorator:@mpi_entry_point @pudb_remote_debug_on_single_rank def main(...)
Then, you can connect to pudb on rank 0 by running
telnet 127.0.0.1 6899
in a separate terminal and continue to use pudb as normal.