Select the alternatives that are provided in the menu. You can click on a graph for a larger version or to have the graph in SVG, PDF or EPS format.

The graphs are updated every four/five minutes.

Five graphs can be displayed for each system:

1. CPU USAGE:

The graph shows the number of cores that is being used for running end-user jobs on the system and the number of cores that have been allocated in some other way.

The vertical axis represents the number of cores.

The (horizontal) black line represents the number of cores that is available for computation.

• green: the total number of cores in use by active (running) jobs
• blue: the total number of cores requested by suspended jobs (eligible to run)
• yellow: the total number of cores requested by queued jobs (eligible to run)
• red: the total number of cores requested by blocked jobs (ineligible to be run or queued)

In general, non-green space below the black line represent periods with idle processor cores. Eligible jobs are in general jobs that are ready to run if there would be sufficient idle resources available (or if not explicitly put on hold by user or system administration). Ineligible jobs are not ready to run. These include jobs that have dependencies to other jobs; in particular, jobs that only can start after specific other jobs have finished.

The display gives only an indication about the immediate availability of a machine. Whether a new job will start execution immediately after submission on a machine with sufficiently idle processor cores depends on factors other than CPU-availability only (e.g., memory requirements, reservations and job priorities).

The display does not inform about the total time that is requested by queued, suspended or blocked jobs.

Legends: For all legends, numbers of the form X-Y represent a range of processor cores; for X / Y, the number X represents a number of processor cores and Y a number of jobs.

2. PARALLELISM:
3. PARALLELISM (FOR QUEUE):

The graph indicates for each system what jobs are running with different levels of parallelism. One graph shows this for running jobs and one graph for jobs that are queued.

The vertical axis represents the number of cores.

The (horizontal) black line represents the number of cores that is available for computation.

• red: very high parallelism; cores that are used by running jobs that use more than 1024 cores
• purple: high parallelism; cores that are used by running jobs that use 257-1024 cores
• pink: medium parallelism; cores that are used by running jobs that use 65-256 cores
• blue: medium parallelism; cores that are used by running jobs that use 17-64 cores
• cyan: little parallelism; cores that are used by running jobs that use 9-16 cores
• dark green: very little parallelism; cores that are used by running jobs that use 2-8 cores
• pale green: no parallelism; sequential jobs

Legends: For all legends, numbers of the form X-Y represent a range of processor cores; for X / Y, the number X represents a number of processor cores and Y a number of jobs.

4. GRID JOBS:

This graph shows the number of cores that are used for local and grid processing jobs

The vertical axis represents the number of cores.

The (horizontal) black line represents the number of cores that is available for computation.

• red: the number of cores used for grid jobs
• green: the number of cores used for local jobs

5. DISK USAGE:

The graph shows the usage of the disk area that is shared by all processor cores and that is intended for temporary storage only.

• red: the total used space on /work (in TeraBytes)
• green: the total free space on /work (in TeraBytes)

The graph does not inform about the usage of the area for user home directories (/home).