I’m using AGX Orin dev. kit with Jetpack 5.0.2
When I checking the number of cuda cores, I got some questions…
First, according to Here, it says “AGX Orin dev. Kit get 2048 cuda core”.
Tested with cuda-samples/Samples/1_Utilities/deviceQuery Source - Github to check the number of cuda cores.
The output said:
I also checked:
$ grep MemTotal /proc/meminfo
MemTotal: 31268720 kB
$ df / -h
Filesystem = /dev/mmcblk0p1
Size = 57G
My questions are:
- How many CUDA core are there on AGX Orin? 1024 or 2048?
- If it’s 2048, is there a way to set it up? HW configuration or device tree?
Thank you very much.
Since Orin has lots of variants, could you also share the board details with us?
$ cat /etc/nv_boot_control.conf
Here is the logs:
orin@ubuntu:~$ cat /etc/nv_boot_control.conf
Please set Orin to MAXN mode and try it again.
We can get 2048 CUDA cores under the MAXN setting:
CUDA Device Query (Runtime API) version (CUDART static linking)
Detected 1 CUDA Capable device(s)
Device 0: "Orin"
CUDA Driver Version / Runtime Version 11.4 / 11.4
CUDA Capability Major/Minor version number: 8.7
Total amount of global memory: 30536 MBytes (32019165184 bytes)
(016) Multiprocessors, (128) CUDA Cores/MP: 2048 CUDA Cores
GPU Max Clock rate: 1300 MHz (1.30 GHz)
The default 30W mode only turns on 4 GPU TPC (total is 8) so the number of GPU cores is only 1024.
For more details, please find the document below:
After changing power mode, CUDA core is now 2048.
$ sudo /usr/sbin/nvpmodel -m 0
Thank you very much!
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