Specify the JES Tuxedo server group, in which the current job is executed.

This API is optional; once it is used, it must immediately follow m_JobBegin.

If this API is not called in a job, the job will be randomly executed on any server group; on the other hand, if this API is called in job, the job will be executed on the specified server group. If the specified server group does not exist or no ARTJESINITIATOR in that server group is started, the job will be in the waiting queue until the ARTJESINITIATOR in that server group is started.

If SvrGrpName is not specified or "" is specified, although no errors are reported, the job will be randomly executed on any server group.