hydra_nameserver1
Program to support mpi s name publishing features with hydra
Overview
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
. vb shell@myhost1$ hydra_nameserver & shell@myhost1$ mpiexec -hosts myhost1,myhost2 -n 4 -nameserver myhost1 ./a.out . ve
Location
/tmp/WUlL2ojnWJ/mpich-4.0.1/src/pm/hydra/tools/nameserver/hydra_nameserver.txt
Releases
3 releases since Debian 9 (Stretch); the text changed 2 times.