GPUs performance evaluation
Following the discussion here: forums.dual.sphysics.org/discussion/1846
A few of us (@Asalih3d ), users of DSPH, wanted to evaluate the performance of hardware setup. This would help people deciding if they should upgrade their hardware.
As a first step, we choose to run the dambreak example as it is simple.
Here is the xml code I've run
It is set with dp=0.01, I've run test with dp from 0.01 to 0.005 every 0.001.
Here are the results (3xGTX1080ti +2xGTX1060)
Clockspeed are not the spec ones, but the ones I read under load with GPU-Z tool (don't forget to "pre-heat" your GPU as the actual clockspeed shown in sensors varies at the beginning). I did not detect any thermal throttling.
I've looked at the theoretical performance delta between two hardware setups and the actual (averaged between all simulations) performance delta.
Performances of the 3 1080ti are consistant between each other (different manufacturers and different CPUs).
Comparing 1080ti and 1060, the theoretical and actual delta are different (1060 perform 12% better than expected)
Feel free to crunch my numbers differently and discuss.
It would be very beneficial if other people could run the same test, especially with RTX series (2000 and 3000...).