This Call closes at 5pm on 31st July 2020

Special Call for Director’s Discretionary proposals 

DiRAC’s Director of Innovation & Technology invites the UK theory and modelling communities in Astrophysics, Particle Physics and Nuclear Physics to apply for discretionary computational resources on the STFC DiRAC HPC Facility.


DiRAC will be able to make a number of large discretionary awards of time on two of our services during the period August 2020 – March 2021. These awards will be made to proposals of outstanding scientific interest and timeliness and which can demonstrate significant benefit from concurrent access to large numbers of nodes.

Proposals should be ambitious in scope – this is an opportunity to carry out large and/or calculations that might not fit within your existing RAC allocations. 

All codes used must have undergone a technical review as part of the RAC process. Codes which have not done so will be requested to submit a technical case prior to the application being considered. 

All awarded time must be used by March 31st 2021 and no requests to extend beyond this date will be accepted. 

Application process: proposals should be submitted using the Director’s Discretionary Call application form, which can be downloaded from the links below.

You must include the application number where the required technical case associated with the software to be used in this application can be obtained. You do not need to resubmit technical information that you have already provided – however, you may be asked to provide evidence of the scalability of your codes if you will be using the code at a larger scale than was previously requested.

Assessment process: Proposals will be reviewed by the Director of Innovation and Technology, the RAC chairs and the Technical Manager. 

Closing date: the closing date for applications will be 5pm on 31st July 2020.

Assessment criteria: Proposals will be assessed based on the following criteria: 

1. Scientific impact – 60% 
2. Track record of user/group – 20% 
3. Timeliness/urgency – why would performing this calculation in Jan-Mar 2019 enhance the impact of your science? – 20%

A pdf version of the Application Form is available here.

And a word copy of the Application Form is available here.

Please send the form to

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