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Cycles: Tweaks to support CUDA 8 toolkit

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All the changes are mainly giving explicit tips on inlining functions,
so they match how inlining worked with previous toolkit.

This make kernel compiled by CUDA 8 render in average with same speed
as previous kernels. Some scenes are somewhat faster, some of them are
somewhat slower. But slowdown is within 1% so far.

On a positive side it allows us to enable newer generation cards on
buildbots (so GTX 10x0 will be officially supported soon).
This commit is contained in:
Sergey Sharybin
2016-08-01 15:40:46 +02:00
parent 7065022f7a
commit 6353ecb996
29 changed files with 250 additions and 126 deletions
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6
intern/cycles/device/device_cuda.cpp
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@@ -321,11 +321,11 @@ public:
return "";
}
if(cuda_version < 60) {
printf("Unsupported CUDA version %d.%d detected, you need CUDA 7.5.\n", cuda_version/10, cuda_version%10);
printf("Unsupported CUDA version %d.%d detected, you need CUDA 7.5 or newer.\n", cuda_version/10, cuda_version%10);
return "";
}
else if(cuda_version != 75)
printf("CUDA version %d.%d detected, build may succeed but only CUDA 7.5 is officially supported.\n", cuda_version/10, cuda_version%10);
else if(cuda_version != 75 && cuda_version != 80)
printf("CUDA version %d.%d detected, build may succeed but only CUDA 7.5 and 8.0 are officially supported.\n", cuda_version/10, cuda_version%10);
/* Compile. */
string kernel = path_join(kernel_path, path_join("kernels", path_join("cuda", "kernel.cu")));