Does the NIC on Jetson AGX Orin Dev kit support GPUDirect RDMA? Is yes, how to use it?

Autonomous Machines Jetson & Embedded Systems Jetson AGX Orin
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Hello, I’m trying to use the Orin Dev kit for DNN video encoding/decoding and transmission tests. The program is separated into a client and a server.

  • The server reads images from a USB camera, loads it onto GPU, uses a DNN encoder to create two tensors(~200kB), and finally sends them through NIC.
  • The client side will receive them and run a decoding process.

I found the copy process from GPU ram to user space VA is very slow (~20ms), and the tensor will be copied again into socket buffer. Then I found the GPUDirect RDMA doc, and wondered if it can help.

And I want to know whether the NIC on AGX Orin support RDMA, and how can I use it.

  • Hardware: Jetson AGX Orin Dev kit
  • Jetson Pack Version: 5.0.2
  • Linux Distro: Ubuntu 20.04
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Hi,
It is not supported on Orin currently. Please refer to the related topic:
RDMA - PCIe module can not be inserted into kernel

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