- Check the compiler you are using on each machine, and make sure it is the same.
- Use the Solver Profiler to see if the same results are being calculated (check number of steps, step size, etc.)
- Run your comparison on a shipping example, such as sm_backhoe or sf_car
Simulink slow on AMD Ryzen 7
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I have a new Lenovo T14s with a Ryzen 7 PRO 4750U and I am comparing Simulink performance to an old Lenovo T440p with an Intel i7-4710MQ. The same simulation is about 30% slower on the Ryzen. I have tried this with Matlab R2020b and R2021a. OS is Linux (Ubuntu).
When I run the bench-tool I get about 45 points on the Ryzen and about 15 on the i7. All numbers are way better on the Ryzen, so I am very confused why Simulink performs worse.
Does anyone has any suggestions how I can debug this?
Steve Miller on 4 Jun 2021
Peisong Lou on 27 May 2022
I have same issue on Win10, so i guess this is not cause the configuration or some other reason on using Matlab, this is cause Ryzen 7 performance bad for running Matlab, not only Simulink.