Drive AGX Only 7 cores in HTOP and LSCPU

Autonomous Vehicles DRIVE AGX Xavier DRIVE AGX Xavier General
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1

Quick question about the Drive AGX.

Currently doing some benchmarks, and just noticed that I only have access to 7 of the NVIDIA Carmel ARM64 cores, instead of the advertised 8. Just wanted to know if something is wrong on our end, or if there’s anything I can do to increase it to 8.

Lark20230314-181543
Lark20230314-1815431884×1086 434 KB

Software Version
DRIVE OS Linux 5.2.6
DRIVE OS Linux 5.2.6 and DriveWorks 4.0
DRIVE OS Linux 5.2.0
DRIVE OS Linux 5.2.0 and DriveWorks 3.5
NVIDIA DRIVE™ Software 10.0 (Linux)
NVIDIA DRIVE™ Software 9.0 (Linux)
other DRIVE OS version
other

Target Operating System
Linux
QNX
other

Hardware Platform
NVIDIA DRIVE™ AGX Xavier DevKit (E3550)
NVIDIA DRIVE™ AGX Pegasus DevKit (E3550)
other

SDK Manager Version
1.9.1.10844
other

Host Machine Version
native Ubuntu 18.04
other

3

Dear @jason.wu2,
It is normal. One core is reserved for hypervisor. You can not increase it to 8 cores. Please check DRIVE OS Linux for more details.

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