Compile MKL-DNN on Windows problems

[adhere]

I want to compile MKL-DNN on windows for Intel Caffe. I read those issues Windows or OSX Support? , so many error when compiling on windows with visual studio, mkl-dnn windows port . And I see the current MKL-DNN CMakeLists.txt contains a setting for Windows(if(WIN32)).

I believe the current MKL-DNN supporting Windows. Right?

My development environment is:
OS：Windows 7 Ultimate SP1 64 （CPU is Intel Xeon E3-1231 V3）
IDE: VS2013
Toolset: parallel_studio_xe_2017_update4_setup

What I do:

1. git clone https://github.com/01org/mkl-dnn
2. add a line to CmakeLists.txt
   list(APPEND CMAKE_FIND_ROOT_PATH "D:/caffe_intel/mklml_win_2018.0.20170720")
3. open a cmd window, cd to the mkl-dnn source directory; mkdir build; cd build
4. cmake -G "Visual Studio 12 2013 Win64" -T"Intel C++ Compiler 17.0" ..
5. Use the VS open the generated project. But building the the project is failed. The error：

error 3 error : identifier "constexpr" is undefined D:\caffe_intel\mkl-dnn-master\src\common\utils.hpp 73 1 mkldnn
error 4 error : expected a ";" D:\caffe_intel\mkl-dnn-master\src\common\utils.hpp 73 1 mkldnn
error 5 error : identifier "constexpr" is undefined D:\caffe_intel\mkl-dnn-master\src\common\utils.hpp 75 1 mkldnn
error 6 error : expected a ";" D:\caffe_intel\mkl-dnn-master\src\common\utils.hpp 75 1 mkldnn
error 7 error #77: this declaration has no storage class or type specifier D:\caffe_intel\mkl-dnn-master\src\common\utils.hpp 129 1 mkldnn
error 8 error : "constexpr" is not a function or static data member D:\caffe_intel\mkl-dnn-master\src\common\utils.hpp 129 1 mkldnn
Warn 9 warning #12: parsing restarts here after previous syntax error D:\caffe_intel\mkl-dnn-master\src\common\utils.hpp 134 1 mkldnn
error 10 error : expected a ";" D:\caffe_intel\mkl-dnn-master\src\common\utils.hpp 134 1 mkldnn
error 11 error : identifier "constexpr" is undefined D:\caffe_intel\mkl-dnn-master\src\common\nstl.hpp 47 1 mkldnn
error 12 error : expected a ";" D:\caffe_intel\mkl-dnn-master\src\common\nstl.hpp 47 1 mkldnn
error 13 error #303: explicit type is missing ("int" assumed) D:\caffe_intel\mkl-dnn-master\src\common\nstl.hpp 52 1 mkldnn
error 14 error : expected a ";" D:\caffe_intel\mkl-dnn-master\src\common\nstl.hpp 52 1 mkldnn
error 15 error #303: explicit type is missing ("int" assumed) D:\caffe_intel\mkl-dnn-master\src\common\nstl.hpp 57 1 mkldnn

Any suggestions to compile MKL-DNN on Windows or there is a pre-build binary one ? Thanks!

[vpirogov]

We don't have binary distribution for Intel MKL-DNN on any platforms. While current version of MKL-DNN can be built on Windows it has limited functionality and validated platforms. The errors you observe are due to limited C++11 support in VS 2013, namely it does not understand constexpr keyword. You should be able to compiler using VS 2015. Hope that helps!