NVIDIA Triton Inference Server

The NVIDIA Triton Inference Server provides a cloud inferencing solution optimized for NVIDIA GPUs. The server provides an inference service via an HTTP or GRPC endpoint, allowing remote clients to request inferencing for any model being managed by the server. For edge deployments, Triton Server is also available as a shared library with an API that allows the full functionality of the server to be included directly in an application.

What's New In 2.2.0

• TensorFlow 2.x is now supported in addition to TensorFlow 1.x. See the Frameworks Support Matrix for the supported TensorFlow versions. The version of TensorFlow used can be selected when launching Triton with the --backend-config=tensorflow,version=<version> flag. Set <version> to 1 or 2 to select TensorFlow1 or TensorFlow2 respectively. By default TensorFlow 1 is used.

• Add inference request timeout option to Python and C++ client libraries.

• GRPC inference protocol updated to fix performance regression.

• Explicit major/minor versioning added to TRITONSERVER and TRITONBACKED APIs.

• New CMake option TRITON_CLIENT_SKIP_EXAMPLES to disable building the client examples.

Known Issues

• The KFServing HTTP/REST and GRPC protocols and corresponding V2 experimental Python and C++ clients are beta quality and are likely to change. Specifically:
  • The data returned by the statistics API will be changing to include additional information.
  • The data returned by the repository index API will be changing to include additional information.
• The new C API specified in tritonserver.h is beta quality and is likely to change.
• TensorRT reformat-free I/O is not supported.
• Some versions of Google Kubernetes Engine (GKE) contain a regression in the handling of LD_LIBRARY_PATH that prevents the inference server container from running correctly (see issue 141255952). Use a GKE 1.13 or earlier version or a GKE 1.14.6 or later version to avoid this issue.

Client Libraries and Examples

Ubuntu 18.04 builds of the client libraries and examples are included in this release in the attached v2.2.0_ubuntu1804.clients.tar.gz file. See the documentation section 'Building the Client Libraries and Examples' for more information on using these files. The client SDK is also available as a NGC Container.

Custom Backend SDK

Ubuntu 18.04 builds of the custom backend SDK are included in this release in the attached v2.2.0_ubuntu1804.custombackend.tar.gz file. See the documentation section 'Building a Custom Backend' for more information on using these files.

Jetson Jetpack Support

An experimental release of Triton for the Developer Preview of JetPack 4.4 is available as part of the 20.06 release. See 20.06 release for more information.