Behavior of Multiple Drive Thor's Connected With Mini-SAS

Autonomous Vehicles DRIVE AGX Thor DRIVE AGX Thor General
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Please provide the following info (tick the boxes after creating this topic):

Software Version
DRIVE OS 7.0.3
other

Target Operating System
Linux
QNX
other

Hardware Platform
DRIVE AGX Thor Developer Kit (940-63960-0010-000)
DRIVE AGX Thor Developer Kit (940-63960-0012-000)
other

Host Machine Version
native Ubuntu Linux 24.04 Host installed with DRIVE OS Docker Containers
other

Issue Description
We were looking for more documentation on how a connected pair of Drive Thor’s (the 2x Thor configuration) would behave. Does the Mini-SAS link combine just the CUDA resources into one that’s shared between the still independent Thors or does the pair look more like a single machine (possilby like a dual cpu socket server?).

I’ve been looking through the documentation but can’t find many details on this mode so any pointers to existing documentation would be greatly appreciated.

Thanks,
Rich

3

Dear @rich.frederiksen,

Yes. correct. Please see NvSciStream Sample Application — NVIDIA DriveOS 7.0.3 Linux SDK Developer Guide to test C2C use case.

4

Dear @rich.frederiksen ,
Do you have any questions in this topic. Can we close this topic?

5

Thanks, one follow up question: at some point in the future I’ve heard that there may be a “super” Thor configuration (basically two Thor’s in the same box). Is the answer the same in that case or will that look more like a single 28 core server?

Thanks,
Rich

6

Yes. But the data transfer speed may vary based on connector between Thor SoC.

9

Thanks!, I think you can close this topic now.

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