AI Generate using only 4 cores on a 12 core Ryzen CPU

[Oracletrades]

Hi there, I was playing around with AI Generate today and on my algo testing machine with high performance components (Ryzen 9 3900X 24 threads, 32GB DDR4 4000 RAM, 2TB NVME), NT8 is only using four cores and not even fully. Any idea why? I am of course using latest NT8, lifetime license and 64 bit edition.

[Oracletrades]

...actually I meant 4 threads out of 24 threads...

[NinjaTrader_ChrisL]

Hello Oracletrades, thanks for your question.

Please try running an optimization on the SampleMACrossover strategy, do you get all cores used there? All of the cores I have (4) are being used when I do an AI generate and optimization. So we might be looking at a case where AI generate uses only 4 cores whereas optimization will use all of them. If we get that kind of result, I will need to ask my supervisor on what to do.

I look forward to hearing from you.

[Oracletrades]

Thanks for the reply. On optimization, NT does seem to use all threads, my point was about the AI Generate tool.

[NinjaTrader_ChrisL]

Hi Oracletrades, thanks for your reply.

I am getting 4 cores used on an AI generate backtest. I don't have a machine with more than 4 cores to test on so I am not sure if it's locked to 4 cores somehow or something else. I will let our development team know to look into this issue.

Kind regards.

[Oracletrades]

Thanks, happy to provide my logs if that helps. just PM me.

[NinjaTrader_ChrisL]

Hello Oracletrades, thanks for your patience.

We tested with a Ryzen CPU and we are getting all cores used. In your screen shot it looks like the rest of the cores are used, but not all the way to 100%. If that is the case then it would be the operating system handling that part, since we confirmed the design can use every core of the machine. When a C# application is made with multithreading, it doesn't need to handle the core usage, it simply needs to spawn a new thread and the operating system will determine which core that thread is ran on.

[Radano]

Windows might be limiting the amount of cores NT uses. Please make sure to review this article https://www.alphr.com/enable-all-cores-windows/