LXBATCH

The CERN batch computing service currently consists of around 35,000 CPU cores running Platform LSF®, providing computing power to the CERN experiments for tasks such as physics event reconstruction, data analysis and physics simulations.

The public batch service is open to all CERN users.

It aims to share the resources fairly and as agreed between all the CERN experiments that make use of the system. The relative share you have on the service will depend on which experiment you belong to and the activity you are doing within the experiment.

User jobs are submitted from our public interactive Linux service (LXPLUS). The jobs are then queued and subsequently dispatched by the batch service to one of the batch nodes for execution, with the result being returned to the user upon exit of the job. Typically we run one batch job per CPU core (current commodity CPU servers have 12-24 CPU cores per machine), though the service also supports parallel-slot execution.

The batch service offers a number of different queues dependent on the length of the job. Typically, the shorter the job, the more likely it is to be serviced quickly.

The current compute resources available are described on the LSF Resource Overview page.