NOTICE

tt-metal
Copyright 2026 Tenstorrent USA, Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

================================================================================

This project includes modified portions of the LLVM Project (https://llvm.org)
in the following files:

  tt_stl/tt_stl/llvm/llvm_small_vector.cpp  (renamed from llvm/ADT/SmallVector.cpp)
  tt_stl/tt_stl/llvm/llvm_small_vector.hpp  (renamed from llvm/ADT/SmallVector.h)
  tt_stl/tt_stl/llvm/memory_alloc.hpp  (renamed from llvm/Support/MemAlloc.h)

These files are licensed under the Apache License v2.0 with LLVM Exceptions.
License available at: https://llvm.org/LICENSE.txt

================================================================================

Third-Party Dependencies:

The following separate and independent dependencies are utilized by this
project and are included in distributed builds (such as Python Wheels).
Each is subject to its own license terms:

- sfpi-gcc
  Tenstorrent USA, Inc.
  Licensed under Apache 2.0
  https://github.com/tenstorrent/sfpi-gcc

- OpenMPI
  Licensed under BSD-3-Clause
  https://github.com/open-mpi/ompi
  https://github.com/open-mpi/ompi/blob/main/LICENSE

- PMIx Reference Library (OpenPMIx)
  Licensed under BSD-3-Clause
  https://github.com/openpmix/openpmix
  https://github.com/openpmix/openpmix/blob/master/LICENSE

- libevent Event Notification Library
  Copyright 2012 Niels Provos and Nick Mathewson
  Licensed under BSD-3-Clause
  https://github.com/libevent/libevent
  https://github.com/libevent/libevent?tab=License-1-ov-file#readme

- numactl (libnuma)
  Simple NUMA policy support
  Licensed under GPL-2.0
  https://github.com/numactl/numactl
  https://github.com/numactl/numactl/blob/master/LICENSE.GPL2

- hwloc (libhwloc)
  Portable Hardware Locality
  Licensed under BSD-3-Clause
  https://github.com/open-mpi/hwloc
  https://github.com/open-mpi/hwloc?tab=License-1-ov-file

The following dependencies are utilized by this project but are not explicitly
distributed as part of the software:

- yaml-cpp
  Licensed under MIT
  https://github.com/jbeder/yaml-cpp
  https://github.com/jbeder/yaml-cpp/blob/master/LICENSE

- Doxygen
  Licensed under GPL-2.0
  https://github.com/doxygen/doxygen
  https://github.com/doxygen/doxygen/blob/master/LICENSE

- Boost C++ Libraries
  Licensed under Boost Software License 1.0
  https://www.boost.org
  https://www.boost.org/LICENSE_1_0.txt

- glog (Google Logging Library)
  Licensed under BSD-3-Clause
  https://github.com/google/glog
  https://github.com/google/glog/blob/v0.4.0/COPYING

- ICU (International Components for Unicode)
  Licensed under ICU License
  http://site.icu-project.org
  http://www.unicode.org/copyright.html#license