UCC Version 1.1.0

Features

API

• Added float 128 and float 32, 64, 128 (complex) data types
• Added Active Sets based collectives to support dynamic groups as well as
  point-to-point messaging
• Added ucc_team_get_attr interface

Core

• Config file support
• Fixed component search

CL

• Added split rail allreduce collective implementation
• Enable hierarchical alltoallv and barrier
• Fixed cleanup bugs

TL

• Added SELF TL supporting team size one

UCP

• Added service broadcast
• Added reduce_scatterv ring algorithm
• Added k-nomial based gather collective implementation
• Added one-sided get based algorithms

SHARP

• Fixed SHARP OOB
• Added SHARP broadcast

GPU Collectives (CUDA, NCCL TL and RCCL TL)

• Added RCCL TL to support RCCL collectives
• Added support for CUDA TL (intranode collectives for NVIDIA GPUs)
• Added multiring allgatherv, alltoall, reduce-scatter, and reduce-scatterv
  multiring in CUDA TL
• Added topo based ring construction in CUDA TL to maximize bandwidth
• Added NCCL gather, scatter and its vector variant
• Enable using multiple streams for collectives
• Added support for RCCL gather (v), scatter (v), broadcast, allgather (v),
  barrier, alltoall (v) and all reduce collectives
• Added ROCm memory component
• Adapted all GPU collectives to executor design

Tests

• Added tests for triggered collectives in perftests
• Fixed bugs in multi-threading tests

Utils

• Added CPU model and vendor detection
• Several bug fixes in all components