Optimizing number of threads and workers in virtual machines.

Can I reduce the computational time through adjusting the numer of threads and the number of workers in my VM?

Processor: Intel® Xeon® Platinum 8280L Processor 38.5M Cache, 2.70 GHz

Total Cores 28

Total Threads 56

Intel® Xeon® Platinum 8280L Processor

I assume the cores are logical.

The following scenarios yielded barely the same results in terms of computatiional time.

NumWorkers= 1 NumThreats=1

NumWorkers= 2 NumThreats=1

NumWorkers= 3 NumThreats=1

NumWorkers= 1 NumThreats=3

NumWorkers= 2 NumThreats=3

NumWorkers= 3 NumThreats=3

Answer 1

[Mike Croucher]

In general, this depends hugely on exactly what your code is doing. If there was one perfect setting that always worked, it would be the default and you'd never need to do anything.

So, what is your code doing? Since you are varying number of workers your code is making use of parallel constructs like parfor or parfeval right? If not, this will make no difference,