Commit: 39bfde674cfe4f6a9140b6d4c48a348de04d715a
Author: Brecht Van Lommel
Date: Thu Apr 17 12:18:49 2014 +0200
https://developer.blender.org/rB39bfde674cfe4f6a9140b6d4c48a348de04d715a
Cycles CUDA: don't use cuLaunchGridAsync at all for display devices.
As suggested by Martijn, this is slower than cuLaunchGrid.
===================================================================
M intern/cycles/device/device_cuda.cpp
===================================================================
diff --git a/intern/cycles/device/device_cuda.cpp
b/intern/cycles/device/device_cuda.cpp
index 9739717..0d2f6cd 100644
--- a/intern/cycles/device/device_cuda.cpp
+++ b/intern/cycles/device/device_cuda.cpp
@@ -664,11 +664,14 @@ public:
cuda_assert(cuFuncSetCacheConfig(cuPathTrace,
CU_FUNC_CACHE_PREFER_L1))
cuda_assert(cuFuncSetBlockShape(cuPathTrace, xthreads,
ythreads, 1))
- cuda_assert(cuLaunchGridAsync(cuPathTrace, xblocks, yblocks,
cuStream))
if(info.display_device) {
/* don't use async for device used for display, locks
up UI too much */
- cuda_assert(cuStreamSynchronize(cuStream))
+ cuda_assert(cuLaunchGrid(cuPathTrace, xblocks, yblocks))
+ cuda_assert(cuCtxSynchronize())
+ }
+ else {
+ cuda_assert(cuLaunchGridAsync(cuPathTrace, xblocks,
yblocks, cuStream))
}
cuda_pop_context();
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