Administering Platform LSF - SAS

Chapter 43
Using lstcsh
connect
Syntax
Description
Examples
◆
[t | -t]
Turns wall-clock timing on (t) or off (-t).
If timing is on, the actual response time of the command is displayed. This
is the total elapsed time in seconds from the time you submit the command
to the time the prompt comes back.
This time includes all remote execution overhead. The csh time builtin
does not include the remote execution overhead.
This is an impartial way of comparing the response time of jobs submitted
locally or remotely, because all the load sharing overhead is included in
the displayed elapsed time.
The default is off.
connect [host_name]
lstcsh opens a connection to a remote host when the first command is
executed remotely on that host. The same connection is used for all future
remote executions on that host.
The connect command with no argument displays connections that are
currently open.
The connect host_name command creates a connection to the named host.
By connecting to a host before any command is run, the response time is
reduced for the first remote command sent to that host.
lstcsh has a limited number of ports available to connect to other hosts. By
default each shell can only connect to 15 other hosts.
% connect
CONNECTED WITH
SERVER SHELL
hostA +
% connect hostB
Connected to hostB
% connect
CONNECTED WITH
SERVER SHELL
hostA +
hostB -
In this example, the connect command created a connection to host hostB,
but the server shell has not started.
Administering Platform LSF 559