Does the Xavier NX have IO coherency and support RDMA?
The AGX Xavier does:
https://devtalk.nvidia.com/default/topic/1042276/jetson-agx-xavier/is-gpu-direct-rdma-supported-on-xavier-solved-/post/5326942/#5326942
But the Jetson Nano doesnt:
https://devtalk.nvidia.com/default/topic/1049823/is-gpu-direct-rdma-supported-on-jetson-nano/?offset=1#5327950
Hi akmal.ali,
From what I understand now, the Xavier NX is based on the Xavier SoC , so should be possible to support with specific features on same series SoC.
@kayccc So NX supports GPUDirect RDMA?
Thanks
I’m guessing the PCI card would have to ensure that its data is formatted correctly for CUDA. Or maybe raw sensor data can be processed directly.
No discussion on what the latency of the translation of user to kernel space etc. I’ll bet moving memory is something linux is very good at and maybe the benefit less than an order of magnitude.
Interesting topic
@kayccc Any updates on this , Thanks
Although it is not tried, given NX is also based on Xavier, it is expected to work on Xavier NX as well.