[Clas_hadron] [EXTERNAL] Use of offsite resources for priority simulation tasks

[Bryan McKinnon]

Dear Hadron Spectroscopists

As you know, we have now the possibility to submit CLAS12 simulation offsite, either using OSG resources opportunistically or dedicated resources allocated by Collaborating Institutions. So far, access to these resources has been opened to all Collaborators with no priorities or constraints. However, considering the efforts that will go in the next months towards getting first publications and the fact that resources are still limited, we need to make sure these resources will be utilized in the most effective and efficient way to support the analysis that are candidates for first publications.

To address this from the technical point of view, a priority system has been put in place: this allows to give higher priority to specific user accounts that would therefore have a larger share of the available resources. This should be accompanied by an “administrative” process to determine what simulations tasks should be given this high priority. After discussing within the Software Group and the Coordinating Committee, we think that a way to handle this could be to have collaborators, responsible for a specific analysis, submitting a request according to the attached form that would need to be approved by the relevant PWGs for what concerns the physics and analysis aspects (event generator, kinematics, statistics, …) and by the Software Group for what concerns the computing resources (CPI hours, disk space, …). The CCC would be notified as well to make sure all WG chairs are informed and could address possible conflicts arising from multiple requests.

Since this process is entirely new, it will be presented at the Collaboration meeting to gather feedback. Meanwhile, we wanted to give you advanced notice this is being put in place so that you can start discussing what your simulation plans and requirements are within your analysis and Run Group.

Regards
Bryan



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Dr. Bryan McKinnon

Nuclear and Hadron Physics Research
School of Physics and Astronomy
University of Glasgow
Glasgow
G12 8QQ
Scotland UK

Tel: (+44/0) 141-330-7226
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