Thermal stress-test / make the fan turn on?

Autonomous Machines Jetson & Embedded Systems Jetson TX1
1

I’m planning to use the TX1 in less than ideal environmental conditions. Can somebody share with me code that can exercise various power-hungry components of the TX1 module, which I guess would be all the cuda cores? Running all four Arm cores at 100%, but with no gpus active, doesn’t even register on my IR thermometer.

Thanks

2

Hello, Jijikos:
To ‘Running all four Arm cores at 100%, but with no gpus active’
you can ‘sudo apt-get install stress’ and that tool can burn all CPU cores to 100%, with GPU inactive.

br
Chenjian

3

If you want to manually control the fan speed, here’s the command to control the fan’s PWM signal (0-255):

echo 255 > /sys/kernel/debug/tegra_fan/target_pwm

To maximize governor limits before launching your application, run this script: https://github.com/dusty-nv/jetson-scripts/blob/master/jetson_max_l4t.sh

Also there are useful sysfs commands for controlling cores and frequencies here: http://elinux.org/Jetson/Performance