MATLAB R2023a unusable on brand new desktop computer

I recently bought a brand new computer to replace my outdated system:

• AMD Ryzen 9 5950X 16-Core Processor 3.40 GHz
• NVIDIA GeForce RTX 4070 TI GPU
• 64GB DDR4 3200 MHz RAM
• 4 TB SSD
• Windows 11 Home

While MATLAB R2023a (and all of my scripts) runs flawlessly on my previous home desktop as well as my work computer which feature 1/4 the RAM and far worse specs - doing absolutely anything in Matlab on my new computer is like pulling teeth. Not only does my code run at a snails pace - such that it basically seems like Matlab is stalling half of the time - but doing simple things like opening variables in my workspace can take 5-20 seconds when normally this "feat" occurs instantaneously on more antiquated systems.

All of the other software i've installed on my new computer runs as you would expect on a high performance computer so the issue appears to be with MATLAB specifically. Thank you in advance for any suggestions for solving this issue.

[the cyclist]

This is not exactly an "answer", but my advice would be to re-install, and if that doesn't help contact Mathworks support.

Answer 1

[Mohammad Ali Sharifian]

I have encountered this problem when I installed R2023b. I use previous version instead (R2020a). Perhaps you should do the same.

Answer 2

[Star Strider]

Use Windows Task Manager and Resource Monitor to see what else is running and what resources are being used.

Also R2023b is currently available to download and install.

[Samsara]

Thank you for the response. MATLAB runs slow even after a fresh reboot and i've yet to see the CPU or the memory usage go beyond 10% or 39% respectively under even the most strenuous workload conditions. I have since updated to 2023b; however, this had no effect on the aforementioned issues. As I mentioned, I do not encounter performance issues with any other software/programs and my computer specs far exceed what is recommended to run MATLAB effectively.

[Star Strider]

My pleasure!

I have a similar system, although older (Ryzen 9 3900, AMD Radeon 5700XT) and I haven’t had similar problems. There were reports of MATLAB running more slowly on Ryzen machines because it didn’t take full advantage of the available optimisation options (see Does Matlab perform well on AMD Ryzen? - MATLAB Answers - MATLAB Central and related posts), however that seems to have been fixed in the most recentl releases.

One possibility to troubleshoot this would be to experiment with MATLAB Online to see if you have similar problems running your scripts there. (It should be almost a fast as it should be on your own machine in my experience, although that can depend on the number of others using it at the same time.) Also, running the bench function should provide some information. If the problem persists, Contact Support and include the bench results.

[Image Analyst]

Thanks @Star Strider, I didn't know about the bench program. Below are my embarassing results on my 12 year old, Windows 10, Core i5 system. Looks like I need a new computer! 🥵

[Star Strider]

My pleasure!

For this computer (about 3 MHz during that run).