Target system layer

Finally, the target system layer consists of the interface to the local operating system, file system and resource management (batch) system. This target system interface (TSI) is used for submitting
jobs, performing file I/O, and checking job status. The TSI is implemented as a daemon running with administrator (root) permissions on the resource (e. g., the login node in case of a compute cluster). It will execute commands using the UNIX account of the current UNICORE user (never as root).

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