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Join a Virtual OrganisationNow the Grid knows who you are you need to be authorised to use its resources. Grid users are managed via the Virtual Organisation system where all users doing similar work, in similar disciplines or working on the same experiment are grouped together and have access rights (and restrictions) applied to them. |
Which VO you choose to work with depends on the work you wish to do. Within the UK there are a few test VOs which can be used by individuals wishing to look at how easy it would be to "Gridify" their work and these could be a good starting point, your local Grid contact will be able to suggest a suitable one.
Finding a VO
However your project or discipline may already have a VO. For example if you are working on T2K, the ILC or on Biomedical research there are specific VOS for these communities, again your local Grid contact should be able to advise you. The current list of VOs supported by GridPP are here.
Creating a VO
Depending on the size of your project and the success you have had with one of the test VOs there is also the possibility to set up a new VO. The method for doing that is laid out here.
If you are a member of the ALICE, ATLAS, CMS or LHCb experiment you are entitled to be a member of the relevant Virtual Organisations. This gives you authorisation to use the resources allocated to the experiment.
The general method is the same for each of the experiments but there can be differences the following is the information presented by each experiment:
- ALICE - AliEn documentation on the ALICE VO and Certificates
- ATLAS - The section of the ATLAS workbook which details the first steps of getting on the Grid
- CMS - The section of the CMS workbook which details the first steps of getting on the Grid
- LHCb - The section of the LHCb workbook which details the first steps of getting on the Grid