DrAmine
Ansys Employee

There is no native GPU Solver within 2019R3.

So you need to update first to 22R2 and then try the Native GPU Solver.

 

In 2019Rx you have the GPU acceleration for coupled flow calculations with the default solver. That will accelerate only systems which requires more 80% on solve step (LE Time on iteration when checking the timer usage for CPU only run).