Issue a batch request to start the stage in of files specified in the stagein attribute of a batch job.
stage in batch request is generated and sent to the server over the connection
which is the return value of pbs_connect().
This request directs the server to begin the stage in of files specified in the
jobs stage in attribute.
This request requires that the issuing user have operator or
identifies which job for which file staging is to begin. It is specified in
if not the null pointer or null string, specifies the location where the
job will be run and hence to where the files will be staged.
The location is the name of a host in the the cluster managed by the server.
If the server does not understand the location, it will reject the request
and return an error.
If the job is then directed to run at different location, the run request will
is reserved for implementation defined extensions.
It is not
currently used by this function.