| # Cannot build with CUDA |
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| Tool: Verilog to DB |
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| Subcategory: Compiler version mismatch |
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| ## Conversation |
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| ### yathAg |
| I am trying to build Openroad with cmake .. -DGPU=true and I get the following output
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| ```
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| -- GPU is enabled
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| -- CUDA is found
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| -- The CUDA compiler identification is NVIDIA 10.1.243
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| -- Detecting CUDA compiler ABI info
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| -- Detecting CUDA compiler ABI info - done
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| -- Check for working CUDA compiler: /usr/bin/nvcc - skipped
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| -- Detecting CUDA compile features
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| -- Detecting CUDA compile features - done
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| -- Found re2: /opt/or-tools/lib/cmake/re2/re2Config.cmake (found version "9.0.0")
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| -- Found Clp: /opt/or-tools/lib/cmake/Clp/ClpConfig.cmake (found version "1.17.7")
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| -- Found Cbc: /opt/or-tools/lib/cmake/Cbc/CbcConfig.cmake (found version "2.10.7")
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| -- Found Eigen3: /usr/local/share/eigen3/cmake/Eigen3Config.cmake (found version "3.4.0")
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| -- Found SCIP: /opt/or-tools/lib/cmake/scip/scip-config.cmake (found version "8.0.1")
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| -- GUI is enabled
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| -- Found Boost: /usr/local/lib/cmake/Boost-1.80.0/BoostConfig.cmake (found version "1.80.0") found components: serialization
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| -- Found OpenMP_CXX: -fopenmp (found version "4.5")
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| -- Found OpenMP: TRUE (found version "4.5")
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| -- Could NOT find VTune (missing: VTune_LIBRARIES VTune_INCLUDE_DIRS)
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| -- Found Boost: /usr/local/lib/cmake/Boost-1.80.0/BoostConfig.cmake (found suitable version "1.80.0", minimum required is "1.78")
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| -- Found Boost: /usr/local/lib/cmake/Boost-1.80.0/BoostConfig.cmake (found version "1.80.0") found components: serialization system thread
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| -- TCL readline enabled
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| -- Tcl Extended disabled
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| -- Python3 enabled
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| -- Configuring done
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| CMake Warning (dev) in src/gpl/CMakeLists.txt:
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| Policy CMP0104 is not set: CMAKE_CUDA_ARCHITECTURES now detected for NVCC,
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| empty CUDA_ARCHITECTURES not allowed. Run "cmake --help-policy CMP0104"
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| for policy details. Use the cmake_policy command to set the policy and
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| suppress this warning.
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| CUDA_ARCHITECTURES is empty for target "gpl".
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| This warning is for project developers. Use -Wno-dev to suppress it.
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| CMake Error in src/gpl/CMakeLists.txt:
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| Target "gpl" requires the language dialect "CUDA17" . But the current
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| compiler "NVIDIA" does not support this, or CMake does not know the flags
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| to enable it.
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| -- Generating done
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| CMake Generate step failed. Build files cannot be regenerated correctly.
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| ```
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| I have Cuda installed and on `nvidia-smi` I get
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| ```
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| +-----------------------------------------------------------------------------+
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| | NVIDIA-SMI 525.85.12 Driver Version: 525.85.12 CUDA Version: 12.0 |
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| |-------------------------------+----------------------+----------------------+
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| | GPU Name Persistence-M| Bus-Id Disp.A | Volatile Uncorr. ECC |
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| | Fan Temp Perf Pwr:Usage/Cap| Memory-Usage | GPU-Util Compute M. |
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| | | | MIG M. |
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| |===============================+======================+======================|
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| | 0 NVIDIA GeForce ... On | 00000000:01:00.0 On | N/A |
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| | N/A 51C P5 18W / 115W | 187MiB / 6144MiB | 19% Default |
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| | | | N/A |
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| +-------------------------------+----------------------+----------------------+
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| +-----------------------------------------------------------------------------+
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| | Processes: |
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| | GPU GI CI PID Type Process name GPU Memory |
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| | ID ID Usage |
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| |=============================================================================|
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| | 0 N/A N/A 1211 G /usr/lib/xorg/Xorg 52MiB |
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| | 0 N/A N/A 1875 G /usr/lib/xorg/Xorg 133MiB |
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| +-----------------------------------------------------------------------------+
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| ```
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| and on `nvcc -V`
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| ```
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| nvcc: NVIDIA (R) Cuda compiler driver
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| Copyright (c) 2005-2019 NVIDIA Corporation
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| Built on Sun_Jul_28_19:07:16_PDT_2019
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| Cuda compilation tools, release 10.1, V10.1.243
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| ```
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| Any help on how to get the setup working is really appreciated and thanks in advanced.
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| ### vvbandeira |
| Please install a newer version of `nvcc` and try again. As per NVIDIA docs, you will require at least v11; see more [here](https://docs.nvidia.com/cuda/cuda-c-programming-guide/index.html#c-17-language-features). |
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| ### maliberty |
| If we bump to cmake 3.10 then https://cmake.org/cmake/help/latest/module/FindCUDA.html suggests we can use the usual VERSION keyword.
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| FYI - the use of CUDA is quite minimal and probably not worth the bother at this point. |
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