GPU Direct RDMA mode on Jetson Nano

Autonomous Machines Jetson & Embedded Systems Jetson Nano
1

I’ve got a JetsonNano Developer Kit. I’m going to work on the board PicoEVB in the mode GPU Direct.

I’ve read several articles:

https://devtalk.nvidia.com/default/topic/1042276/jetson-agx-xavier/is-gpu-direct-rdma-supported-on-xavier-solved-/post/5338325/#5338325

The PicoEVB board is a double-sided M.2 device. Will it be necessary to put the second “M.2 key E” adapter?

2

Hi zire71, GPUDirect RDMA is only supported on Jetson AGX Xavier, as it features cache coherency between CPU/GPU.

3

Thank you for your reply!
Then I will try to work with PCIe in the DMA mode.
Do I have to use an M2 key E adapter for connection to PicoEVB?

4

Since the Nano devkit, like the Xavier devkit, has the M.2 slot seated underneath the Jetson module, it would likely also require an adapter or extender cable for double-sided M.2 modules.