hydra_nameserver - program to support MPI s name publishing features with hydra

       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

       /var/tmp/jbAQ60iA2q/mpich-4.2.0/src/pm/hydra/mansrc/hydra_nameserver.txt

                                                    2/8/2024                                 hydra_nameserver(1)

       hydra_nameserver -  program to support MPI snamepublishingfeatureswithhydra