Hi, I have problems building Blender (either master or -v2.93-release) with CUDA and gcc 11.1.1.
NVIDIA-SMI 465.19.01 Driver Version: 465.19.01 CUDA Version: 11.3
At first I was building with WITH_CYCLES_CUDA_BINARIES OFF (working around the gcc error check by editing host_config.h). When I enabled CUDA in Blender the following messages showed up in the 3Dview: Failed to execute compilation command.
Building with WITH_CYCLES_CUDA_BINARIES ON, I am not able to build.
I keep seeing error messages about /usr/include/c++/11/bits/stl_pair.h - and the build always fails right after Built target bf_intern_libmv
I can paste stdout from build below
Note: CUDA and Optix work fine when I launch Blender 2.93.1 (STL) release
Building Blender ...
make -s -C "/home/alaindehoe/blender-git/build_linux" -j 12 install
[ 0%] Building CXX object intern/opensubdiv/CMakeFiles/bf_intern_opensubdiv.dir/internal/base/opensubdiv_capi.cc.o
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[ 0%] Building C object intern/numaapi/CMakeFiles/bf_intern_numaapi.dir/source/numaapi_win32.c.o
[ 0%] Built target bf_intern_glew_mx
[ 0%] Linking C static library ../../lib/libbf_intern_clog.a
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[ 0%] Building CXX object intern/audaspace/CMakeFiles/bf_intern_audaspace.dir/intern/AUD_PyInit.cpp.o
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[ 0%] Built target bf_intern_sky
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[ 0%] Building CXX object intern/iksolver/CMakeFiles/bf_intern_iksolver.dir/intern/IK_QSegment.cpp.o
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[ 0%] Building CXX object intern/opensubdiv/CMakeFiles/bf_intern_opensubdiv.dir/internal/topology/mesh_topology.cc.o
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[ 0%] Building CXX object intern/itasc/CMakeFiles/bf_intern_itasc.dir/ConstraintSet.cpp.o
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[ 0%] Generating kernel_optix.ptx
nvcc warning : The 'compute_35', 'compute_37', 'compute_50', 'sm_35', 'sm_37' and 'sm_50' architectures are deprecated, and may be removed in a future release (Use -Wno-deprecated-gpu-targets to suppress warning).
[ 1%] Linking CXX static library ../../lib/libbf_intern_opensubdiv.a
[ 1%] Building CXX object intern/libmv/CMakeFiles/bf_intern_libmv.dir/libmv/autotrack/predict_tracks.cc.o
In file included from /usr/local/cuda-11.3/bin/../targets/x86_64-linux/include/cuda_runtime.h:83,
from <command-line>:
/usr/local/cuda-11.3/bin/../targets/x86_64-linux/include/crt/host_config.h:139:2: error: #error -- unsupported GNU version! gcc versions later than 10 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.
139 | #error -- unsupported GNU version! gcc versions later than 10 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.
| ^~~~~
[ 1%] Building C object source/blender/makesdna/intern/CMakeFiles/bf_dna_blenlib.dir/__/__/blenlib/intern/BLI_ghash_utils.c.o
[ 1%] Building C object source/blender/makesdna/intern/CMakeFiles/makesdna.dir/__/__/blenlib/intern/BLI_ghash_utils.c.o
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make[3]: *** [intern/cycles/kernel/CMakeFiles/cycles_kernel_optix.dir/build.make:268: intern/cycles/kernel/kernel_optix.ptx] Error 1
make[2]: *** [CMakeFiles/Makefile2:3431: intern/cycles/kernel/CMakeFiles/cycles_kernel_optix.dir/all] Error 2
make[2]: *** Waiting for unfinished jobs....
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make[1]: *** [Makefile:166: all] Error 2
make: *** [GNUmakefile:345: all] Error 2
In file included from /usr/local/cuda-11.3/bin/../targets/x86_64-linux/include/cuda_runtime.h:83,
from <command-line>:
/usr/local/cuda-11.3/bin/../targets/x86_64-linux/include/crt/host_config.h:139:2: error: #error -- unsupported GNU version! gcc versions later than 10 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.
139 | #error -- unsupported GNU version! gcc versions later than 10 are not supported! The nvcc flag '-allow-unsupported-compiler' can be used to override this version check; however, using an unsupported host compiler may cause compilation failure or incorrect run time execution. Use at your own risk.
| ^~~~~
This bit is crucial, try running cmake -DCUDA_NVCC_FLAGS="-allow-unsupported-compiler" ./ in your build folder to roll them dice and hope for the best.
I actually tried adding that option in the cflags inside intern/cycles/device/cuda/device_cuda_impl.cpp
then built again
It did not help - same error on /usr/include/c++/11/bits/stl_pair.h and failed built
Is that any different from what you’re suggesting ?
And I had also already changed host_config.h
if GNUC > 10
with
if GNUC > 11
Just tried cmake, but it did not help
I’m still looking into other options
Ah - I just noticed I posted the old build output above!
Below is the one that bypasses the gcc version check
it shows an error with /usr/include/c++/11/bits/stl_pair.h
“/usr/local/cuda/bin/nvcc” -arch=sm_75 --cubin “/home/alaindehoe/blender-git/build_linux/bin/3.0/scripts/addons/cycles/source/kernel/kernels/cuda/kernel.cu” -o “/home/alaindehoe/.cache/cycles/kernels/cycles_kernel_sm_75_E43F234AA4E92E8570730DB044ECC4A9.cubin” -allow-unsupported-compiler -m64 --ptxas-options="-v" --use_fast_math -DNVCC -I"/home/alaindehoe/blender-git/build_linux/bin/3.0/scripts/addons/cycles/source" -DWITH_NANOVDB
/usr/include/c++/11/bits/stl_pair.h(460): error: argument list for class template “std::pair” is missing
/usr/include/c++/11/bits/stl_pair.h(460): error: expected a “)”
/usr/include/c++/11/bits/stl_pair.h(460): error: template parameter “_T1” may not be redeclared in this scope
/usr/include/c++/11/bits/stl_pair.h(460): error: expected a “;”
4 errors detected in the compilation of “/home/alaindehoe/blender-git/build_linux/bin/3.0/scripts/addons/cycles/source/kernel/kernels/cuda/kernel.cu”.
could you expand on that please?
would I copy
./2.93/scripts/addons/cycles/lib/kernel_sm_75.cubin
./2.93/scripts/addons/cycles/lib/filter_sm_75.cubin
to the .cache folder adding the same hash?
You’d copy those files to the exact location in your build folder, however since the kernel code changes often the build you “borrow” the files from has to be the exact same version of blender. ie if you build blender 2.93, don’t take the files from the official 2.92 or 3.0 alpha builds, it HAS to be 2.93.
I built the blender-v2.93-release and copied the full 2.93/scripts/addons/cycles/lib directory from
my download of blender-2.93.1 (linux-x64)
This seems to do the trick!
Thanks LazyDodo
Adding some new info here (regarding nvcc c++ errors)
I came across a 2015 nvidia post NVCC fails if C++11 activated and certain headers included - CUDA Programming and Performance - NVIDIA Developer Forums
This suggested running nvcc command with the extra args -std=c++11
I was able to build each kernel one by one by replicating the cmd-line in the error messages from a Blender session and adding -std=c++11
I then tried to do a similar thing to build Blender with kernels with cmake -DCUDA_NVCC_FLAGS="-std=c++11". This seemed to compile the cuda filter_ and kernel_ files, but then failed on the optix kernels with same c++ stl_pair.h error. As I didn’t see the nvcc commands in stdout at build time it is unclear right now why one set of kernels seems to go through and one doesn’t.
