sshcmd {nws} | R Documentation |
This function is used by the sleigh constructor when starting workers on remote nodes using the ssh command. Note that it doesn't actually start any workers directly: it simply returns the program name and arguments to start a worker on the specified node.
sshcmd(host, options)
host |
Name of the worker machine to be started. |
options |
An environment or list that contains information used to construct the command. See defaultSleighOptions for more information. |
sshcmd currently uses the following options: 'user', 'wrapperDir', 'workerWrapper', and 'python'. The 'user' option is the most useful.
A character mode vector, whose first element is the command that will be executed to start the worker, and whose subsequent elements are the arguments to the command.
sshcmd is not intended to be called by the user. It is called by the sleigh constructor when specified via the sleigh launch argument. You may want to execute it when debugging your sleigh option settings, but that can also be accomplished by setting the sleigh verbose argument to TRUE.
## Not run: # Create a sleigh with workers on nodes n1 and n2 started via ssh: s <- sleigh(launch=sshcmd, nodeList=c('n1', 'n2')) # Same as previous, but as user 'frank': s <- sleigh(launch=sshcmd, nodeList=c('n1', 'n2'), user='frank') ## End(Not run)