CERN Accelerating science


An accounting report, showing resource usage/allocation by site and experiment, is produced each month, integrated into a report for the current calendar year. Reports consist of data on CPU, Disk and Tape. CPU Capacity Metrics are defined here. A working group is currently working on the new metric for sites reporting installed capacity and usage.

Accounting portal

The EGI Accounting Portal collects all accounting data for the whole of WLCG (US, Europe etc). All of our accounting reports are extracted from this portal.

CERN & T1s

Data snapshots are taken on the 8th of the month, sent to WLCG members to submit their comments, then published here about a week later, depending on availability of data. CERN & Tier-1 sites CERN and Tier 1 accounting is calculated by combining:

  1. Data from the Tier 1 EGI Accounting portal comprising Norm. Sum CPU and Norm. Sum Elapsed figures
  2. The current quarter data from the relevant Resource Planning Table
  3. Data requested manually direct from each Tier 1 site.

The accumulated data is then stored and analysed to produce the overall accounting reports below (CERN login may be required):

Tier-2 sites

Tier 2 accounting is calculated from data extractions from the Tier 2 EGI Accounting Portal to produce the reports below:

Page last updated on: 28 Jun 2012