P4 to Git Change 1793462 by gandryey@gera-win10 on 2019/06/07 15:33:19

SWDEV-79445 - OCL generic changes and code clean-up
	Optimize scratch buffer calculation in the preparation for coop group launch, since the current limit affects max waves calculation:
	- Switch to 32 waves per CU as the max possible limit
	- Use vgprs count for the waves limit calculation to avoid unconditional possible max

Affected files ...

... //depot/stg/opencl/drivers/opencl/runtime/device/pal/paldevice.cpp#141 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/paldevice.hpp#38 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/pal/palsettings.cpp#82 edit

rocclr/runtime/device/pal/palsettings.cpp

@@ -112,7 +112,7 @@ Settings::Settings() {
   numDeviceEvents_ = 1024;
   numWaitEvents_ = 8;
 
-  numScratchWavesPerCu_ = 16;
+  numScratchWavesPerCu_ = 32;
 
   // Don't support platform atomics by default.
   svmAtomics_ = false;