hydra_nameserver(1) HYDRA hydra_nameserver(1)
NAME
hydra_nameserver - program to support MPI s name publishing features
with hydra
DESCRIPTION
Hydra is the default name service for MPI\ s name publishing features
(MPI_PUBLISH_NAME/MPI_LOOKUP_NAME). For programs launched by separate
hydra instances, a separate nameserver mechanism need be launched in
order for the name publishing to work across multiple process managers.
This can be achieved with hydra_nameserver. For example:
shell@myhost1$ hydra_nameserver &
shell@myhost1$ mpiexec -hosts myhost1,myhost2 -n 4 -nameserver myhost1 ./a.out
LOCATION
/var/tmp/D6Fh70cM3H/mpich-4.1/src/pm/hydra/mansrc/hydra_nameserver.txt
1/27/2023 hydra_nameserver(1)
mpi 4.1 - Generated Sat Jan 28 05:42:45 CST 2023