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Return an informational structure-array with one entry for each machine specified by connections.
This function can only be successfully called at the client
machine. See pconnect for a description of the
connections variable. connections can contain all
connections of the network, a subset of them, or a single
connection. For the local machine (client), if contained in
connections, some fields of the returned structure may be
empty.
The fields of the returned structure are local_machine: true
for the connection representing the local machine, nproc:
number of usable processors of the machine, nlocaljobs:
configured number of local processes on the machine, peername:
name of the machine (empty for local machine), open: true if
the connection is open, network_id: uuid of the network,
real_node_id: internal id assigned to node, 0 for
client, servers starting with 1.
See also: pconnect, pserver, reval, psend, precv, sclose, parallel_generate_srp_data, select_sockets.