Installing OpenBlas on Windows » History » Version 6
John Cary, 04/27/2019 09:55 AM
| 1 | 1 | John Cary | # Installing OpenBlas on Windows |
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| 3 | 6 | John Cary | These instructions largely derive from [Installing OpenBLAS using Conda](https://github.com/xianyi/OpenBLAS/wiki/How-to-use-OpenBLAS-in-Microsoft-Visual-Studio#1-native-msvc-abi). |
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| 5 | 5 | John Cary | Install 64bit Miniconda3 with Python-2.7. It should be easily found in your preferred search engine's results. The current link is https://docs.conda.io/en/latest/miniconda.html. Install options: |
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| 7 | * All users. |
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| 8 | * Do not add Anaconda to the system path variable. |
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| 9 | 1 | John Cary | * Do not register Python as the system Python 2.7. |
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| 11 | 5 | John Cary | Open the "Anaconda Command Prompt", which should be available in the start menu, with administrative privileges. Execute |
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| 13 | 5 | John Cary | ~~~ |
| 14 | conda update -n base conda |
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| 15 | conda config --add channels conda-forge |
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| 16 | conda install -y cmake flang clangdev perl libflang |
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| 17 | conda install -y -c isuruf kitware-ninja |
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| 18 | ~~~ |
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| 20 | Activate the 64-bit build environment with Visual Studio. E.g., |
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| 22 | ~~~ |
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| 23 | "C:\Program Files (x86)\Microsoft Visual Studio\2017\Community\VC\Auxiliary\Build\vcvars64.bat" |
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| 24 | ~~~ |
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| 26 | In a cygwin window, untar openblas into /winsame/builds-vs2017, and create the build directory |
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| 28 | ~~~ |
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| 29 | mkdir -p /winsame/builds-vs2017/openblas |
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| 30 | cd /winsame/builds-vs2017/openblas |
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| 31 | tar xf ~/svnpkgs/openblas-0.3.4.tar.xz |
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| 32 | ~~~ |
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| 34 | Back in the Anaconda prompt, move to the openblas area, create the build subdirectory, and set needed environment variables. E.g., |
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| 36 | ~~~ |
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| 37 | D: |
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| 38 | cd \winsame\builds-vs2017openblas\openblas-0.3.4 |
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| 39 | mkdir build |
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| 40 | cd build |
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| 41 | set "LIB=%CONDA_INSTALL_LOCN%\Library\lib;%LIB%" |
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| 42 | set "CPATH=%CONDA_INSTALL_LOCN%\Library\include;%CPATH% |
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| 43 | ~~~ |
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| 44 | |||
| 45 | Configure, build, install shared openblas for installation into your contrib dir. E.g., |
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| 47 | ~~~ |
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| 48 | cmake .. -G "Ninja" -DCMAKE_CXX_COMPILER=clang-cl -DCMAKE_C_COMPILER=clang-cl -DCMAKE_Fortran_COMPILER=flang -DBUILD_WITHOUT_LAPACK=no -DNOFORTRAN=0 -DDYNAMIC_ARCH=ON -DCMAKE_BUILD_TYPE=Release -DCMAKE_INSTALL_PREFIX:PATH=D:/winsame/contrib-vs2017/openblas-0.3.4-sersh |
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| 49 | ninja clean |
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| 50 | cmake --build . --config Release |
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| 51 | ninja install |
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| 52 | ~~~ |
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| 53 | |||
| 54 | Configure, build, install static openblas without autolinking of the shared runtime libraries for installation into your contrib dir. E.g., |
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| 56 | ~~~ |
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| 57 | cmake .. -G "Ninja" -DCMAKE_CXX_COMPILER=clang-cl -DCMAKE_C_COMPILER=clang-cl -DCMAKE_Fortran_COMPILER=flang -DBUILD_WITHOUT_LAPACK=no -DNOFORTRAN=0 -DDYNAMIC_ARCH=ON -DCMAKE_BUILD_TYPE=Release -DBUILD_SHARED_LIBS=FALSE -DCMAKE_C_FLAGS_RELEASE:STRING="/O2 /Ob2 /D NDEBUG" -DCMAKE_CXX_FLAGS_RELEASE:STRING="/O2 /Ob2 /D NDEBUG" -DCMAKE_INSTALL_PREFIX:PATH=D:/winsame/contrib-vs2017/openblas-0.3.4-ser |
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| 58 | ninja clean |
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| 59 | cmake --build . --config Release |
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| 60 | ninja install |
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| 61 | ~~~ |