GCRI · Nexus Ecosystem
Network and Core
Two layers of shared computing serve Nexus Consortiums. The Nexus Network is a durable federation of retained national and regional sites. edition Core is the temporary backbone assembled each year from contributed, authorised computing, networks and teams, then stood down. The Global Centre for Risk and Innovation (GCRI) coordinates both through GCRI Canada. Part of Nexus ecosystem.
01Workspace
The workspace for Network and Core.
GCRI · GCRI · Country programme consoleIllustrative
Country programme console
Network and Core · Country programme A · Month 4 · Example interface, not a record
National Model in buildGCRI · GCRI
Programme
- Formationdossier
- National Deskstaffed
- National Modelbuild
- Portfoliooptions
- Annual missiontest
- Reportedition
System coupling
dependency strength, 0 to 100
Example strengths a National Model replaces with estimates.
Evidence ledger
| Reservoir storage | OBSERVED | National Desk |
| Hydropower output | MODELLED | Technical office |
| Grid stress | SCENARIO | Technical office |
| Hospital continuity | ESTIMATED | Health ministry |
GCRI · Country programme console. Country programme console: example names and illustrative values, not a record.
02Layers
Persistent, temporary and durable.
| Layer | What it holds |
|---|---|
| Persistent coordination | Authorised institutions and projects; resource catalogues and qualification; identity, rights and methods; retained evidence and publication records |
| Temporary technical environment | Qualified networking and high-performance computing; accelerators, cloud and edge capacity; secure data spaces and cyber ranges; simulation environments and technical support |
| Durable outputs | Trained teams and tested configurations; reproducible workloads and software; datasets where permitted and evaluation results; improvements to institutional practice |
The Network is not a permanent global supercomputer, and the Core is not installed, standing capacity.
03Resource states
Seven states, none of which implies the next.
A contributed resource moves through offered, qualified, reserved, allocated, accessible, measured and accepted. An offer is never counted as reserved, consumed or funded, and neither membership nor sponsorship secures an allocation.
- Owner and operating contact
- Legal and use constraints, location and availability window
- Hardware, software, interconnect, memory and storage profile
- Security state, supported workloads and measured limits
- Return and sanitisation requirements
04Measurement
Rules for describing capacity.
- 01
State the conditions
Publish measured capability with workload, data size, hardware, topology, precision, concurrency, software version and interval.
- 02
Separate the numbers
Keep peak, sustained, available and allocated capacity apart, and never sum hardware specifications into a performance claim.
- 03
Federation is not one machine
Describe local low-latency computing and wide-area federation separately.
- 04
Count the footprint
Track energy, cooling, water, transfers and logistics, keeping measurements apart from estimates.
05Stand-down
How the temporary Core is closed.
The proposed one-day stand-down closes new submissions, checkpoints authorised jobs, freezes the evidence manifest, revokes temporary credentials, reconciles equipment and records open exceptions. It becomes a commitment only when the annual programme records it. Review, reconciliation and corrections continue afterwards. Contributors start at Technology and infrastructure providers. The Global Risks Forum (GRF) governs the annual programme: see its Annual operating cycle.
06Questions
Questions and answers.
Is any Core capacity available now?
No allocation is open. The current service level is information and enquiries.
Does offering capacity give us a role in the programme?
An offer receives a disposition and, if suitable, a qualification record. Allocation is a separate, approved step, and an offer confers no governance role.
Is data deleted within a day of stand-down?
No such promise is made. Media are purged or retained under approved, validated rules, and review continues after stand-down.
The Global Centre for Risk and Innovation
Bring a method, a dataset or a question.
Information and enquiries are open today. An enquiry receives a reference and names the next step; applications, payments, compute allocations and registrations open only when their team, terms and review capacity exist.
Legal
Legal documents.
Maps, data and figures on this site are shown for context and general information. They are not advice, forecasts or warnings; the limits of the information are set out in the Disclaimers and Data Notices.