What is GASNet?

GASNet (Global Address Space Networking) is a language-agnostic networking layer used by PGAS languages and runtime systems to deliver low-latency, high-throughput communication on modern supercomputers. Gasnet.org turns the practical and research context around GASNet-style systems into a structured, search-friendly knowledge base.

Why this site exists

High-performance networking knowledge tends to be fragmented across papers, vendor manuals, and lab wikis. Gasnet.org brings those insights together so you can:

• Compare transport stacks and their trade-offs.
• Document runtime decisions that impact latency and scalability.
• Share reproducible microbenchmarks and tuning workflows.

How to navigate

• Getting Started explains terminology and the workflow to evaluate a system.
• Architecture maps the datapath and control flow in HPC interconnects.
• Programming Model covers PGAS semantics and communication primitives.
• Interop focuses on language bindings, runtime integration, and tooling.
• Benchmarks collects reproducible tests and topology notes.

Contribute research notes

When you have new findings, capture them with:

• Context: platform, interconnect, topology, compiler/runtime versions.
• Measurement: methodology, warm-up, sampling, and variance.
• Outcome: raw numbers plus the decision you made from them.

This keeps the knowledge base actionable for both practitioners and researchers.