This Call closed on 30th January 2019

Special Call for DiRAC-2.5y Director’s Discretionary proposals 

The DiRAC Director 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.


To celebrate the commissioning of the new DiRAC-2.5y Data Intensive and Memory Intensive services, the Director has decided to make a number of large discretionary awards of DiRAC time on these services during the period January-March 2019. 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 during the period prior to commencement of the RAC 11 awards. 

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 2019 and no requests to extend beyond this date will be accepted. 

Application process: proposals should be submitted using the DiRAC-2.5y Director’s Discretionary Call application form. The form is attached to this e-mail and will also be available from the DiRAC website.

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, the RAC chairs and the Technical Manager. 

Closing date: the initial closing date will be 5pm on 18th January 2019. However, proposals will continue to be accepted after this date until all Friday 22nd February or until available resources have been awarded, whichever is the earlier. 

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  (You will receive a mail from JISC requesting positive confirmation that the email did originate with you (to cut down on spam).  Simply click on the link in Jisc’s email to approve the message for delivery.)