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Open call: JVNC Research Compute Allocation, Cycle 41

Jan 4, 2026 JVNC Newsroom JVNC.NET

Cycle 41 of the JVNC Research Compute Allocation is now open. The programme grants access to shared GPU partitions, large-memory nodes and the distributed storage fabric for periods of three to twelve months.

Proposals are reviewed on scientific merit, technical feasibility and the degree to which the work depends on the cooperative's low-latency topology. Preference is given to projects that would not be possible on a single institutional cluster.

Successful applicants receive an allocation of node-hours, a storage quota, a service account on the JVNC identity fabric and an engineering contact for the duration of the award.

Deadlines for Cycle 41 fall on the last Friday of each month. Reviews are returned within three weeks. There is no fee for member institutions; non-members may apply under the affiliate track.

Documentation, quota tables and example proposals are available from the member portal.

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01 About

JVNC is a non-profit cooperative running a low-latency research network, a distributed compute fabric and an identity layer for its member institutions.

We started in 1985 as the John von Neumann Computing Network — a handful of university sites sharing a single backbone. The ambition has not changed: make distant machines behave like nearby ones.

Today the cooperative carries science traffic between 380 institutions, operates its own optical layer, and publishes every measurement it makes.

Founded1985

Backbone capacity42 Tbps

Member institutions380

Measured uptime99.995 %

Median RTT, east corridor2.1 ms

Deterministic latency is what makes a distributed cluster behave like a single machine.

Network engineering group, JVNC

02 Capabilities

Everything a research network needs, run by the people who use it.

01 / 06

Optical Backbone Transit

Coherent 400G ZR+ lambdas on leased dark fibre, reconfigurable in under ninety seconds through a software-defined ROADM layer.

400G ZR+ROADMDark fibre

02 / 06

Supercomputing Fabric

Shared GPU partitions, large-memory nodes and a scheduler that understands topology, so jobs land close to their data.

GPUSlurmTopology-aware

03 / 06

Data Movement & Caching

Edge caches inside member campuses, namespace policies that separate checkpoints from archives, no per-gigabyte charge.

Edge cacheNamespaceTape

04 / 06

Research Identity Federation

Hardware-backed assurance levels, attribute-based authorisation, temporary rights across institutions without new credentials.

SSOABACStandards-track

05 / 06

Anycast DNS & Naming

Eleven points of presence, DNSSEC validation everywhere, free secondary service for member authoritative zones.

DNSSECAnycastIPv6-first

06 / 06

Observability & Telemetry

Hardware timestamping probes on every hop, one-way delay measurement, raw data published to members.

gNMIP4 probesOpen data

03 Network

Eleven points of presence. One flat address plan. No hidden queues.

Princeton

Primary peering

0.4 ms

Ashburn

Interchange

2.1 ms

Chicago

Midwest aggregation

7.8 ms

Amsterdam

EU interchange

38 ms

Frankfurt

DE-CIX presence

41 ms

London

LINX presence

40 ms

Tokyo

APAC anchor

102 ms

São Paulo

LATAM anchor

96 ms

Johannesburg

Africa gateway

168 ms

Singapore

South-east Asia

146 ms

Sydney

Oceania

178 ms

Latency is a design decisionOpen measurements Latency is a design decisionOpen measurements

04 Newsroom

Dispatches from the cooperative.

Engineering notes, allocation calls and field data — published as they happen, archived in full.

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