Cluster Reservations
The Resnick High Performance Computing Center provides a reservation system with different rules for non-investors and investors.
Non-Investor Reservations
Core Allocation Formula
Available cores are calculated as:
X = Y + (q - c)
Where:
Y = 1,000 cores (6.25% of total available)
q = 16,000 cores (6-month average queue depth)
c = current queue depth in cores
Example Scenarios
Queue Depth |
Available Cores |
|---|---|
15,500 cores |
1,500 cores |
16,500 cores |
500 cores |
> 16,000 cores |
Requires approval |
Limitations
Limit |
Value |
|---|---|
Maximum cores per group |
3,000 (exceeding requires approval) |
Maximum duration |
2 weeks (longer requires approval) |
Maximum reservations per year |
3 (additional requires approval) |
Investor Reservations
Investors receive guaranteed reservation capacity equivalent to their investment.
No duration limitations on investment cores
No frequency limitations on reservations
Requests exceeding investment level follow the standard formula
Requesting a Reservation
Contact help-hpc@caltech.edu with:
Number of cores needed
Duration of reservation
Justification (deadline, demo, etc.)
Preferred start date/time
Tip
Plan ahead! Reservation requests should be submitted at least 1-2 weeks in advance when possible.