npcdna
June 22, 2021, 12:50pm
1
When I installed two TX2 systems with the latest jetpack 4.5.1, I went into TX2 and switched to maximum power mode 0. I found that my TX2, CPU2 and cpu3 worked at 0%. Even if I let them work overload and other CPUs worked at about 90%, CPU2 and cpu3 still worked at 0%. Only at the moment of switching mode, they would change. Is this a TX2 hardware problem or not suitable for jetpack 4.5.1.
This is not a bug. These two cores are disabled on purpose.
Hi.
I am wondering why no work is ever assigned to the two Denver cores although I am running in the MAX-N model. I have both tested with nvpmodel -m 0 and by running jetson_clocks.
I am able to see all 6 cores in both top, htop and in tegrastats but the CPU load of the two Denver cores always remains at 0%.
I am able to launch a new process and move it to the Denver cores with taskset but no work is automatically distributed to these cores. Why is that so?
I am running Ubuntu 18.04 from Jet…
Hello,
Our team is currently developing some application on the jetson tx2 and, at the moment, we cannot accurately benchmark it because 2 of the board’s CPU are sitting a 0% (although online), here is a screenshots to show the problem, this frequency is measured on jtop as well as the ubuntu system monitor.
[cpu_0pc]
Note that, from what we can tell, they are not offline:
On jtop, offline CPUs are shown with a red OFF sign (which is clearly not the case here)
We have (repeatedly) executed…
Hey,
I took a fresh flashed Jetson TX2 device (Jetpack 4.4) and activated all cores sudo nvpmodel -m 0.
After that, all 6 cores were displayed in htop, but core 2 and 3 are always at 0%. What can go wrong there?
[grafik]
Hello Wayne, Could I know why Nvidia default disable the two cores on Jetpack 4.5.1?
Please check the release note in this website. There is the reason for it.