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Fix #109550: Cycles: OptiX not able to render without CUDA toolkit

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Happens with specific GPUs like  NVIDIA A100-SXM4-40GB. They use the
compute capability 8.0, which is not explicitly compiled as a cubin,
and since 7fca0ee76a the PTX is not suitable for it either.

The safest solution is to revert the change to a known good state,
and re-iterate as needed.

Revert "Cycles: Increase the compute model for the PTX kernel"

This reverts commit 7fca0ee76a.

This change would need to be cherry-picked to the 3.6 LTS.

Pull Request: https://projects.blender.org/blender/blender/pulls/109636
This commit is contained in:
Sergey Sharybin
2023-07-03 13:55:36 +02:00
committed by Sergey Sharybin
parent 7977247995
commit 03fd794130
1 changed files with 1 additions and 1 deletions
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CMakeLists.txt
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@@ -518,7 +518,7 @@ if(NOT APPLE)
mark_as_advanced(WITH_CYCLES_DEVICE_CUDA)
option(WITH_CYCLES_CUDA_BINARIES "Build Cycles NVIDIA CUDA binaries" OFF)
set(CYCLES_CUDA_BINARIES_ARCH sm_30 sm_35 sm_37 sm_50 sm_52 sm_60 sm_61 sm_70 sm_75 sm_86 sm_89 compute_89 CACHE STRING "CUDA architectures to build binaries for")
set(CYCLES_CUDA_BINARIES_ARCH sm_30 sm_35 sm_37 sm_50 sm_52 sm_60 sm_61 sm_70 sm_75 sm_86 sm_89 compute_75 CACHE STRING "CUDA architectures to build binaries for")
option(WITH_CYCLES_CUDA_BUILD_SERIAL "Build cubins one after another (useful on machines with limited RAM)" OFF)
option(WITH_CUDA_DYNLOAD "Dynamically load CUDA libraries at runtime (for developers, makes cuda-gdb work)" ON)