Matlab performs poorly on AMD Ryzen Threadripper PRO 7985WX 64-Cores

I recently purchased a new AMD Ryzen Threadripper PRO 7985WX 64-Core graphics workstation with 1TB of RAM, but I've found that its code-running speed is slower than my old workstation (Intel(R) Xeon(R) Gold 6442Y) and PC (i7-14700). I ran a t-bench benchmark test, and the score was only in the 60s, as shown in the image. I don't think this is the expected performance of the 7985WX. What could be the problem?(Using MATLAB 2025b)

[Matt J]

It might be worth testing R2024b as well, to see if it's version dependent.

[Xiuye]

I've tried many methods, including changing the MATLAB version, but without much success. I also found that the main problem is the poor performance of 'Sqarse', while the other functions perform quite well.

Answer 1

[Alan Miranda]

It depends if the bench tasks are run in parallel or not. If not run in parallel that is the perframce of a single core. You would need specific bench taskds for parallelt computing to see the benefits of the multi-core processor.

[Xiuye]

I tried many methods, including changing the parallel settings, but they didn't help much. I also found that 'Sqarse' was performing poorly, while the others performed quite well. I suspect it's a problem with Zen 4 or memory latency.