lamhosts {Rmpi} | R Documentation |
lamhosts
finds the host name associated with its node number. Can be used
by mpi.spawn.Rslaves
to spawn R slaves on selected hosts. This is
a LAM-MPI specific function.
mpi.is.master
checks if it is running on master or slaves.
mpi.hostinfo
finds an individual host information including rank and
size in a comm.
slave.hostinfo
is executed only by master and find all master and slaves
host information in a comm.
mpichhosts
finds host names from master Windows registery database.
lamhosts() mpi.is.master() mpi.hostinfo(comm = 1) slave.hostinfo(comm = 1) mpichhosts()
comm |
a communicator number |
lamhosts
returns CPUs nodes numbers with their host names.
mpi.is.master
returns TRUE if it is on master and FALSE otherwise.
mpi.hostinfo
sends to stdio a host name, rank, size and comm.
slave.hostname
sends to stdio a list of host, rank, size, and comm
information for all master and slaves.
mpichhosts
returns hostnames including multiple same hostname if a host
has multiple CPUs. The first host is labeled as "master", the rest is labeled as
"slave1", "slave2", and so on. mpi.universe.size
will return the length of
mpichhosts
-1 on Windows platform.
Hao Yu