EPR #424562 - Add Averaging algorithm to Wave Limiter.
1. Extract the algorithms to a sub-class of the wave limiter class.
2. Add Averaging algorithm
This averaging algorithm typically improves performance of BasemarkCL wave simulation by 8% on Tonga/Fiji than the current smooth algorithm. This change has not enable the averaging algorithm yet. Follow-up changes should be made to intelligently select which algorithm to use.
Affected files ...
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.cpp#7 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.hpp#4 edit
EPR #420584 - [CQE OCL][ISV][QR][SI] FAHBenchmark application is crashing on all SI cards.
Wave limiter causes FAH crash on SI. Disable wave limiter for SI as a workaround.
Opened bug #10817 to track this issue.
Affected files ...
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.cpp#6 edit
EPR #419065 - [CQE OCL][ISV][QR][G] FAHBenchmark application is crashing.
Two issues:
1. Remove clearing of profileEnabled_ since it may cause incorrect kernel execution time measurement.
2. Blit kernels causes assertion in getWavesPerSH since they do not have wave limiters. Remove the assert. If a kernel has no wave limiter, returns 0 in getWavesPerSH.
Affected files ...
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuvirtual.cpp#361 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.cpp#5 edit
ECR #304775 - Wave limiter: Fix bug in adaptation.
Dumped waves/simd value is incorrect.
Should exit adptation only after the changed waves/simd value is applied.
Added wave limiter manager to handle situation that one kernel is enqueued to more than one queues. Create wave limiter for each virtual device.
Affected files ...
... //depot/stg/opencl/drivers/opencl/runtime/device/device.hpp#245 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpukernel.cpp#283 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpukernel.hpp#109 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuvirtual.cpp#360 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.cpp#4 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.hpp#3 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/command.cpp#70 edit
... //depot/stg/opencl/drivers/opencl/runtime/platform/command.hpp#76 edit
ECR #304775 - Wave limiter: Fix crash in CompuBenchCL video composition due to profiling data not collected correctly.
Gpuvirtual.cpp only collects profiling data when all events have profiling enabled. Fixed it by adding a member to indicate at least one event has profiling enabled and collect profiling data.
Improved adptation by changing waves/simd only when the last change has been enforced. Also detecting discontinuities in measured data and discard them.
Affected files ...
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuvirtual.cpp#359 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuvirtual.hpp#129 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.cpp#3 edit
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.hpp#2 edit
... //depot/stg/opencl/drivers/opencl/runtime/utils/flags.hpp#230 edit
ECR #304775 - Wave limiter: fix bug about some variables not initialized before being used.
Affected files ...
... //depot/stg/opencl/drivers/opencl/runtime/device/gpu/gpuwavelimiter.cpp#2 edit
foreman