Networking NVIDIA HPC-X Software Toolkit

Bug Fixes in this Version

Internal Reference Number

Issue

5100788

Description: Fixed CUDA small-message performance regression.

Keywords: UCX; CUDA; regression

Discovered in Release: 2.50

Fixed in Release: 2.51

5125813

Description: Fixed host-memory P2P bandwidth regression.

Keywords: UCX; regression

Discovered in Release: 2.50

Fixed in Release: 2.51

5113235

Description: Fixed a CUDA rendezvous segfault when no CUDA context is active.

Keywords: UCX; CUDA; segfault

Discovered in Release: 2.50

Fixed in Release: 2.51

NVBug #6471178

Description: Fixed NIXL endpoint/device failures while preparing remote-memory views.

Keywords: UCX; NIXL

Discovered in Release: 2.50

Fixed in Release: 2.51

4958573

Description: Fixed incorrect NIC selection on multi-fabric nodes that could cause endpoint timeouts.

Keywords: UCX; timeout

Discovered in Release: 2.26

Fixed in Release: 2.51

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