Clang doesn't understand `optimize("O0")`. It has `noopt`, which GCC doesn't understand. Wrap the difference in a macro.
[ROCm/rccl commit: 8c564e9b57]
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
[ROCm/rccl commit: 299c554dcc]
Summary:
1. remove the noinline attribute for AllReduceThreeKernel;
2. change AUTPUNROLL for tree functions to 1 or 2;
Combining 1 and 2 will reduce the scratch usage from 1256 to 952
[ROCm/rccl commit: eec319038e]
Fixes: #244
SO_RESUEPORT was introduced in Linux 3.9 and later.
This change allows NCCL to compile against older releases.
The functionality is only required if the user is specifying
a NCCL bootstrap address via an environment variable.
[ROCm/rccl commit: 7f2b337e70]
Perform exact matching when the prefix "=" is specified in the NCCL_IB_HCA variable to exclude HCAs mlx5_X[0-9]+ when mlx5_X is specified.
[ROCm/rccl commit: 0b192d2299]
The affinityStr string was not null-terminated but was passed to strlen(3).
Signed-off-by: Felix Abecassis <fabecassis@nvidia.com>
[ROCm/rccl commit: 37e4f8729e]
Makes a change to allow the user to select between the static CUDA
runtime library (default) and the dynamic CUDA runtime library. Does
this by allowing `CUDARTLIB` to be overridden.
[ROCm/rccl commit: 60a586ded9]
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
[ROCm/rccl commit: f40ce73e89]
Current SHM object name would only use pidHash and ranks as
identification, which would collide each other when program runs with
multiple communicators. Here we added commId info into pidHash, it makes
'pidHash'es of different communicators keeping in same process will be
distincted with each other.
[ROCm/rccl commit: 161763aab2]
The shared memory filename was only based on the destination. While
this was OK for rings since only one rank would send data to a given
rank, it would crash with trees because they communicate in both
directions.
Co-authored-by: Rong Ou <rong.ou@gmail.com>
[ROCm/rccl commit: 14e0cf644b]
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.
[ROCm/rccl commit: 1450d42675]
Luke Yeager
Christian Sigg
Sylvain Jeaugey
Wenkai Du
Jeff Daily
Gilbert Lee
Wenkai Du
Changpeng Fang
Michael LIAO
David Addison
Ke Wen
Hirochika Asai
Felix Abecassis
jakirkham
Gustavo Alvarez
Cao Zongyan
Rong Ou