Under normal circumstances, jobs are submitted to an official queue and then dispatched when their time comes.
Given:
the number of users
the number of available processors
An election algorithm that does what it can but has no means to act on the two previous points
It is obvious that not everyone can expect their job to be processed on 512 processors simultaneously.
In general, the more resources a job requires, the less likely it is to be processed quickly, especially if your group is a heavy consumer.
However, there are times when a user may have a valid reason to use significant resources. In such cases, they must justify a request for exceptional resources.
2. Who arbitrates?
The CRIMSON support team validates the technical feasibility of the request, then forwards it to the Users' Committee, which makes the final decision, particularly based on scientific criteria.
3. How to make a request
You will need to contact support and provide, at a minimum, the information requested in the form:
Requested resources:
Total duration
Number of processors
Possible consumption profiles:
Can the job be divided into sub-jobs
Deadlines
A text justifying the request and explaining why it is important. Note that this text is addressed to the Users' Committee, not to support, so it should provide context for the request.
4. How does it work
Once the request has been submitted to support, it will be forwarded to the Users' Committee, which will be asked to provide a response within a reasonable timeframe (approximately one week, depending on the volume of requests). If the response is positive, the support team will propose a solution to allow the user to submit their work.