Generic CPU discussion

Keith Myers
Keith Myers
Joined: 11 Feb 11
Posts: 4964
Credit: 18751545358
RAC: 7102742

I looked at Nvidia's specs

I looked at Nvidia's specs for the various Orin permutations and the tables said like 15W > 90W with a 45W brick supplied for the Orin Nano.

I'd never expect that the power ratings would be for a host with peripherals, since you don't know what is going to be attached.

I'd expect the power ratings would be just for the Orin module and carrier board by itself depending on the version level differences with cores and clocks.

Are you sure you are not just being throttled because of core temps?  The stock heat sink is not all that big and with a pretty anemic fan.

The mobile AMD and Intel cpus use up to 90W in the laptops but they use pretty elaborate vapor chamber cooling to keep the temps down and not throttle too much under compute load.

Does this chart help for setting power levels?

Max-Q and Max-P Power Efficiency

 

CyborgSam
CyborgSam
Joined: 12 Feb 07
Posts: 18
Credit: 155075145
RAC: 32976

The limitation must be the

The limitation must be the development kit, not the Orin chipset. When I click The NVIDIA power in the menu it only offers 15W or 7W. I tried setting the power to 30W via command line, it barfed. It's set to 15W and Mode 0.

 

Keith Myers
Keith Myers
Joined: 11 Feb 11
Posts: 4964
Credit: 18751545358
RAC: 7102742

What does jtop show for the

What does jtop show for the power input VDD_IN and for the cpu-gpu power used VDD_CPU_GPU on the option 6 CTRL page?

For my TX2 I have 15.2 W input and 10.2W power used for the CPU_GPU.  This is on MAXN power settings. IOW, no power limits.

 

CyborgSam
CyborgSam
Joined: 12 Feb 07
Posts: 18
Credit: 155075145
RAC: 32976

VDD_IN is 14W, VDD_CPU_GPU_CV

VDD_IN is 14W, VDD_CPU_GPU_CV is 4.3W.

Right now I'm not getting any CPU tasks from Einstein, PrimeGrid, or DENIS@home so CPU usage is minimal and I'm not getting throttled.

 

Keith Myers
Keith Myers
Joined: 11 Feb 11
Posts: 4964
Credit: 18751545358
RAC: 7102742

Sounds reasonable if the unit

Sounds reasonable if the unit was not doing any cpu work.  My numbers were for both cpu and gpu work.  Four yoyo ecm cpu tasks and a Einstein BRP4G task on the gpu.

 

mikey
mikey
Joined: 22 Jan 05
Posts: 12693
Credit: 1839099224
RAC: 3721

CyborgSam wrote: VDD_IN is

CyborgSam wrote:

VDD_IN is 14W, VDD_CPU_GPU_CV is 4.3W.

Right now I'm not getting any CPU tasks from Einstein, PrimeGrid, or DENIS@home so CPU usage is minimal and I'm not getting throttled. 

Do the SiDock short tasks work on your device? They work just fine on my R-pi's.

Keith Myers
Keith Myers
Joined: 11 Feb 11
Posts: 4964
Credit: 18751545358
RAC: 7102742

Any reason you're not using

Sam, any reason you're not using Gaurav Khanna's anonymous platform app for running the BRP4 and BRP4G tasks on the Jetson Orin Nano?

 

CyborgSam
CyborgSam
Joined: 12 Feb 07
Posts: 18
Credit: 155075145
RAC: 32976

Keith: I should be running

Keith: I should be running the einsteinbinary_cuda64 copied from the Jetson Nano. I have an app_config and app_info in the einstein project folder. The tasks window shows Local: einstein_BRP4G 9.99 (I gave it a version of 999).

Do my results show it's not working?

Apparently I turned off DENIS@Home tasks while diagnosing something on the Orin and forgot to turn it back on. As soon as I did the CPUs got loaded and I got the warning "system being throttled due to over current."

 

Keith Myers
Keith Myers
Joined: 11 Feb 11
Posts: 4964
Credit: 18751545358
RAC: 7102742

No, I was replying to your

No, I was replying to your post where you said you weren't getting any work from Einstein,

I see you have done work on the Orin.

 

Tom M
Tom M
Joined: 2 Feb 06
Posts: 6460
Credit: 9583804543
RAC: 6954142

https://einsteinathome.org/ho

https://einsteinathome.org/host/12792392

This CPU cruncher is taking nearly one third the time to crunch its e@h tasks as my dual Epyc system was. They are both high end rome gen CPUs.

What is it's secret sauce?

 

A Proud member of the O.F.A.  (Old Farts Association).  Be well, do good work, and keep in touch.® (Garrison Keillor)  I want some more patience. RIGHT NOW!

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.