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Gasnet.org

Language-agnostic HPC networking knowledge for real-world systems

Signal Console
Snapshot of key HPC transport metrics.
Latency Budget
1.8 µs
Small message p50 on tuned RDMA path
Bandwidth Plateau
182 GB/s
Dual-rail saturation on modern fabrics
Scale Target
8,192 nodes
Collective fan-out planning baseline

What this site optimizes for

Gasnet.org is built for engineers and researchers who need clear, fast, and verifiable knowledge about HPC communication layers.

Protocol Intelligence

Map transport capabilities to runtime semantics and avoid hidden latency cliffs.

Benchmark Discipline

Treat measurements as evidence, with clear controls and reproducible baselines.

Systems Integration

Align schedulers, job launchers, and runtime hooks for stable production runs.

Research Signals

Track new interconnects, fabrics, and PGAS runtime directions in one place.

Build a repeatable performance narrative

Document hardware baselines, runtime configuration, and topology decisions in one shared place. Every benchmark should explain the decision it enabled.

View Benchmark Guide