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@shasson5 shasson5 released this 16 Apr 13:39
v1.16.0
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1.16.0 (April 15, 2024)

Features:

UCP

  • Added tag offload rendezvous protocol in new infrastructure
  • Added rcache to old protocols infrastructure
  • Added multi-fragment protocols for stream API in new infrastructure
  • Enabled new protocols infrastructure by default
  • Removed context param from ucp_memh_put
  • Added assertion if trying to register unsupported memory type
  • Adjusted rendezvous latency to improve scalability
  • Improved endpoint configuration logging information
  • Added check for max length of user defined Active Message header
  • Added rcache support for mem type memory registration
  • Enabled error handling for rndv/put_zcopy protocol
  • Enabled v2 as default client/server connection establishment packet version
  • Enabled rendezvous protocol selection for reachable MDs only
  • Added ucp_rkey_compare API to enable rkey comparison
  • Added release version to worker address to enable wire compatability
  • Added support for memory invalidation for rendezvous through DC transport
  • Enabled the use of strong fence with new protocols infrastructure

UCT

  • Added UCS_MEMORY_TYPE_RDMA memory type for better latency on supported devices
  • Implemented is_reachable_v2 API for IB transport
  • Added ep_is_conntected API

RDMA CORE (IB, ROCE, etc.)

  • Added Floating LID(FLID) based routing support
  • Added latency and min_zcopy configuration variables to ROCm-IPC
  • Added support for indirect MR for cross-gvmi mkey instead of direct MR with DEVX UMEM

TCP

  • Added filter for eliminate bridge devices from lane selection

GPU (CUDA, ROCM)

  • Added support for handling memh with multiple registrations
  • Added performance estimation BW based on GPU type
  • Adjusted rocm/ipc latency and zcopy threshold parameters
  • Improved error message when libnvidia-ml not installed
  • Added profiling to Cuda runtime API calls
  • Adjusted gdr_copy estimated BW to improve protocol selection

Shared Memory

  • Adjusted FIFO_SIZE to improve scalability
  • Removed redundent rcahce implementation in knem transport
  • Added support for symmetric rkey to improve memory usage

UCS

  • Improved scalability of connection establishment flow
  • Improved memtype cache performance by replacing ptrhead_lock to spinlock
  • Added support for VLAN over channel bonding interface
  • Added LRU cache and Usage Tracker datastructures
  • Improved cross-NUMA device detection
  • Added support for PCIe gen5 bandwidth detection

Build

  • Added LCOV coverage report as a build option
  • Added binutils 2.40 library dependencies
  • Added development modulefile

Tools

  • Added information about sizes of ucp_request_t fields in ucx_info
  • Added ucx env to profiling output
  • Added MAD RTE in ucx_perftest to support setups without IPoIB

Tests

  • Added GTEST_LOG_LEVEL env var to set log level just before test run
  • Disabled protov1 and ud_verbs tests for valgrind mode
  • Reduced gtest execution time

Documentation

  • Added a few details to coding style

Bugfixes:

UCP

  • Reverted wireup latency calculation which caused lanes selection issue
  • Fixed strong fence to always ensure ordering
  • Fixed registration of memh for RNDV protocol
  • Fixed rndv_put and rkey_ptr assertion failure
  • Fixed performance estimation for multi-fragment protocols
  • Fixed memory registration error handling
  • Fixed buffer overflow of large log messages
  • Fixed progress enabling for selected lanes
  • Fixed atomic lanes progress enabling
  • Added missing rendezvous schemes to environment variable documentation
  • Fixed bcopy BW estimation for AMD
  • Fixed lanes information printing for new protocols infrastructure
  • Fixed rndv_am protocol thresholds
  • Fixed fp8 packing issue
  • Fixed Intel OneAPI compilation error
  • Fixed CM address packing on server side
  • Fixed endpoint reconfiguration issue due to asymmetrical selection
  • Fixed asymmetrical selection due to wire compatability issue
  • Fixed potential deadlock with cuda_copy and RTR protocol
  • Fixed tag_recv return value on immediate completion
  • Fixed memory corruption by proper memh handling in tag offload rendezvous
  • Changed default allocator to not use reserved huge pages
  • Fixed rndv put protocol to avoid early completion
  • Fixed rndv_put transport selection for device to device scenario
  • Disabled rendezvous pipeline protocol selection when using non-contiguous buffer
  • Fixed crash in rendezvous protocol rkey pack after failed memory registration

RDMA CORE (IB, ROCE, etc.)

  • Fixed compilation failure when DevX is explicitly disabled
  • Fixed crash when using PCIe relaxed ordering
  • Fixed remote access error with rc_verbs transport
  • Fixed endpoint address management in unified mode
  • Fixed assertion failure when configured with UCX_IB_ADDR_TYPE=ib_global
  • Fixed overwritten MD attribute capabilities when querying a device
  • Fixed ibv_reg_mr error by registering memory in rcache callback
  • Disabled MR multithreading registration
  • Fixed mlx5 WQE posting error due to compiler memory copy optimizations

TCP

  • Fixed assymetric lanes selection issue due to inconsistent device listing

GPU (CUDA, ROCM)

  • Fixed compilation flags to support ROCm 6.0
  • Fixed values of D2H_THRESH and latencey params
  • Fixed Cuda memory support for iov datatype
  • Increased max number of agents in ROCm
  • Fixed cuda_ipc transport being disabled if a CUDA device is not set during initialization

Shared Memoey

  • Fixed posix and cma transport selection by enhancing reachability checks
  • Fixed UGNI build failure
  • Fixed latency overhead for knem and cma transports
  • Fixed possible out-of-order issue in mm_iface

UCS

  • Fixed a deadlock when forked debugger is attached during an error in rcache operation
  • Fixed crash due to passing null pointer to log function
  • Fixed crash due to incorrect hashing method
  • Fixed crash in configuration parser cleanup by moving it after profiler cleanup
  • Fixed floating point division by zero during protocols initialization

UCM

  • Fixed occasional crash in bisto hooks by adding a lock before hooking
  • Fixed compilation error when building on PPC64

Java

  • Fixed go tests by setting CUDA device before allocating CUDA memory
  • Fixed perftest error detection and hanging issue

Tools

  • Fixed cpu model type for AMD Genoa in ucx_info
  • Enhanced multi-thread test output

Build

  • Fixed JUCX package publishing, so it will include support for ARM
  • Fixed ROCm building and testing
  • Removed libnvidia-compute version dependency
  • Removed libibmad/libumad from default build configuration to avoid runtime dependency

Packaging

  • Fixed already existing target error when using cmake find_package(ucx) twice
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