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2020-03-212.6.4-1Sylvain Jeaugey
Add support for network collectives. Add support for XML topology dump/injection. Add text values for GDR and P2P Levels, including "NVL". Add speed detection for PCI, Infiniband and Ethernet cards. Add CPU detection for ARM and AMD CPUs. Add support for adaptive routing on Infiniband. Change NET plugin API to v3 : merge PCI path and GPU pointer capability into a single structure and add other properties.
2019-11-202.5.6-1 (#255)Sylvain Jeaugey
Add LL128 Protocol. Rewrite the topology detection and tree/ring creation (#179). Improve tree performance by sending/receiving from different GPUs. Add model-based tuning to switch between the different algorithms and protocols. Rework P2P/SHM detection in containers (#155, #248). Detect duplicated devices and return an error (#231). Add tuning for GCP
2019-04-05NCCL 2.4.6-1David Addison
Added detection of IBM/Power NVLink bridge device. Add NUMA support to PCI distance calculations. Added NCCL_IGNORE_CPU_AFFINITY env var. Fix memory leaks; GithubIssue#180 Compiler warning fix; GithubIssue#178 Replace non-standard variable length arrays. GithubIssue#171 Fix Tree+Shared Memory crash. GithubPR#185 Fix LL cleanup hang during long running DL jobs. Fix NCCL_RINGS environment variable handling. Added extra checks to catch repeat calls to ncclCommDestroy() GithubIssue#191 Improve bootstrap socket connection reliability at scale. Fix hostname hashing issue. GithubIssue#187 Code cleanup to rename all non device files from *.cu to *.cc
2019-01-302.4.2-1Sylvain Jeaugey
Add tree algorithms for allreduce to improve performance at scale. Add ncclCommAbort() and ncclCommGetAsyncError() to properly handle network errors and be permit recover. Detect initial CPU affinity and no longer escape it.
2018-09-262.3.5-5v2.3.5-5Sylvain Jeaugey
Add support for inter-node communication using sockets and InfiniBand/RoCE. Improve latency. Add support for aggregation. Improve LL/regular tuning. Remove tests as those are now at github.com/nvidia/nccl-tests .