2026-03-03

Porting Ditto TalkingHead (DGX Spark / ARM64) to TensorRT – A Detailed Log

A step‑by‑step guide to porting the Ditto TalkingHead project to TensorRT on a DGX Spark ARM64 system. It covers diagnosing the x86 GridSample3D plugin load failure, rebuilding the plugin for ARM64, adjusting CMake, successful ONNX‑to‑TensorRT conversion, and final inference, providing practical troubleshooting for AI engineers.