Angevoyageur, thanks for your response.
I have read several OpenCL articles on the MQL5 website and also notice several of your previous posting on them. It was rather strange that there were no article/thread with empirical results to proof that the improvement of strategy tester on EA using OpenCL. So far there are some MQL5 scripts on Pi calculations and generating fancy graph. I think that new articles are need to demonstrate the effective of OpenCL for EA testing i.e. both strategy tester and optimization.
I think there is some misunderstandings.
If your EA use OpenCL to do some calculations in parallel, then you can use the Strategy Tester (and the Cloud) to test/optimize it.
But you can't hope to use your GPUs with the Strategy Tester for an all EAs which don't use OpenCL.
I hope I am clear.