1. JetPack 4.6

1.1. New Features

NVIDIA JetPack 4.6 adds support for Jetson AGX Xavier Industrial module and includes L4T 32.6.1. JetPack 4.6 also supports the NVIDIA Triton Inference Server.

2. Additional Release Details

2.1. OS

L4T 32.6.1

  • Support for Jetson AGX Xavier Industrial module.

  • Support for new 20W mode on Jetson Xavier NX enabling better video encode and video decode performance and higher memory bandwidth. The included 10W and 15W nvpmodel configurations will perform exactly as did the 10W and 20W modes with previous JetPack releases. Any custom nvpmodel created with a previous release will require regeneration for use with JetPack 4.6. Please read L4T 32.6.1 release notes for details.

  • Image based Over-The-Air update tools for developing end-to-end OTA solution for Jetson products in the field. Supported on Jetson TX2 series, Jetson Xavier NX and Jetson AGX Xavier series.

  • A/B Root File System redundancy to flash, maintain and update redundant root file systems. Enhances fault tolerance during OTA by falling back to the working root file system slot in case of a failure. Supported on Jetson TX2 series, Jetson Xavier NX and Jetson AGX Xavier series.

  • A new flashing tool to flash internal or external media connected to Jetson1. Supports Jetson TX2 series, Jetson Xavier NX and Jetson AGX Xavier. The new tool uses initial RAM disk for flashing and is up to1.5x faster when flashing compared to the previous method2.

  • Secure boot is enhanced3 for Jetson TX2 series to extend encryption support to kernel, kernel-dtb and initrd.

  • Disk encryption of external media4 supported to protect data at rest for Jetson AGX Xavier series, Jetson Xavier NX and Jetson TX2.

  • NVMe driver added to CBoot for Jetson Xavier NX and Jetson AGX Xavier series. Enables loading kernel, kernel-dtb and initrd from the root file system on NVMe.

  • Enhanced Jetson-IO tools to configure the camera header interface and dynamically add support for a camera using device tree overlays.

  • Support for configuring for Raspberry-PI IMX219 or Raspberry-PI High Def IMX477 at run time using Jetson-IO tool on Jetson Nano 2GB, Jetson Nano and Jetson Xavier NX developer kits.

  • Direct downloadable links to JetPack and L4T debian packages for Jetson.

2.2. Libraries and APIs

CUDA 10.2

  • Performance optimization through user-mode submits.

    50% launch latency reduction for CUDA kernels, resulting in improved GPU utilization and lower CPU utilization.

TensorRT 8.0.1

cuDNN 8.2.1

VPI 1.1

  • New Algorithms

    • Pyramidal LK Optical Flow supported on NVENC

    • Laplacian Pyramid supported on CPU and GPU

    • Image Histogram supported on CPU and GPU

    • Histogram Equalization supported on CPU and GPU

    • Background Subtraction supported on CPU and GPU

  • Developer preview of Python bindings

Multimedia API

  • Support for Scalable Video Coding (SVC) H.264 encoding

  • Support for YUV444 8, 10 bit encoding and decoding

2.3. Developer Tools

  • NVIDIA Nsight Systems 2021.2 for application profiling across GPU and CPU.

    • Several UX improvements

    • Support for Vulkan API Trace

  • NVIDIA Nsight Graphics 2021.2 for graphics application debugging and profiling.

    • Feature Enhancements:

      • Batch Histogram to visualize draw call counts by vertex batch size

      • Enhanced windowing experience providing more powerful window docking and pinning

      • ‘Event Details’ Frame Debugger view that shows all API call parameters

      • Support for Vulkan extensions

        VK_EXT_extended_dynamic_state
        VK_EXT_external_memory_host
        VK_KHR_fragment_shader_rate

    • Improvements

      • Advanced Learning section to the Nsight Graphics User Guide that offers a more in-depth look at the critical tools features that will help profile and ultimately, optimize applications.

      • Resources View has been split into a separate ‘All Resources’ view and an individual Resource Inspector.

      • A “Go to” facility in the Events View for navigating to perf markers, bookmarks or other events.

      • Command “Tools > Windows…” to show all open windows. This allows you to more easily find and navigate between different windows.

      • Ability to use configuration variables in the connection dialog to support project-relative, application-relative, or working-directory-relative application launches.

  • NVIDIA Nsight Compute 2019.3 for CUDA kernel profiling.

    • NVIDIA Nsight Compute version remains the same from JetPack 4.5.

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Notices

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