Summary

NVIDIA® NIXL Release 0.6.1 introduces a new Libfabric plugin for high-performance networking on AWS, expands language binding support and improves stability.

• Libfabric Networking for AWS: Introduces a new Libfabric plugin to leverage AWS Elastic Fabric Adapter (EFA) for high-performance, low-latency communication.
• Language Bindings: Rust bindings now include support for agent configuration and the getXferTelemetry API, improving integration and observability for Rust applications.
• Performance and Stability: Resolves several critical stability issues to enhance robustness.

New Features

• Introduced a new Libfabric plugin with topology-aware support for AWS EFA devices (#784, #801, #802, #809, #817, #826, #831, #833, #850, #852, #866, #867, #868).
• Added an agent configuration flag to enable or disable telemetry capture on a per-agent basis (#764).
• Made the ETCD watch timeout configurable in the metadata listener, to avoid timeouts under heavy load conditions (#766).
• Added a ca_bundle option to the Object Storage plugin for compatibility with S3-compatible storage using self-signed certificates (#806).

Bugfixes

• [Core] Fixed a critical use-after-free error on disconnect where requests could be deleted without proper ownership (#782).
• [Listener] Prevented a crash in the etcd client on multiple metadata updates received in rapid succession (#765).
• [Telemetry] Addressed minor issues in the telemetry framework (#750).

Bindings

• [Rust] Added bindings for ThreadSync and AgentConfig (#824).
• [Rust] Exposed the getXferTelemetry API in the Rust bindings for retrieving per-request performance metrics (#823).

Dependencies

• The UCX dependency is now optional, allowing NIXL to be built without UCX (#825).
• Upgraded the DOCA dependency to 3.1 in the nixlbench container (#760).

Benchmarks

• Fixed the nixlbench container runtime by ensuring the Python virtual environment is activated correctly (#848).
• Fixed a function signature mismatch in the NVSHMEM worker (#786).

Build and Test Infrastructure

• Improved CUDA detection in nixlbench build scripts with a fallback mechanism (#777).

Full Changelog: https://github.com/ai-dynamo/nixl/compare/0.6.0...0.6.1