OAR-GRID is a tool to reserve some computers from different sites of Grid'5000.
OAR-GRID's principle is very simple, on each wanted clusters a reservation is proceeded (in OAR meanings). If one of them did not succeed then all previous reservations are canceled and also the global operation. An identity number is given by OAR_GRID, so with it you can find all reservation information.
Each commands is associated with a man page for more informations.
Submit a reservation
The reservation command is
oargridsub. It will perform an OAR reservation on each specified clusters. It returns a grid job id to bind cluster jobs together if the inherent cluster reservations succeed:
You can use the site alias if you want nodes on several clusters at once:
State reservation visualization
Once a reservation is accepted, it is possible to consult currently allocated machines:
Cancel a reservation
You can cancel your reservation:
Example of use with OAR2 keys management
The whole current grid usage is available through a web interface: