Intel® oneAPI DPC++/C++ Compiler
Talk to fellow users of Intel® oneAPI DPC++/C++ Compiler and companion tools like Intel® oneAPI DPC++ Library, Intel® DPC++ Compatibility Tool, and Intel® Distribution for GDB*
726 Discussions

How to build using CMAKE

Shukla__Gagandeep
Novice
‎08-13-2020 09:53 AM
11,756 Views
Solved Jump to solution

Hi,

EDIT: Apparently if we specify LANGUAGES CXX in project, cmake doesn't check for C compiler. So that issue is solved but it is still not taking dpcpp as a valid CXX compiler and throwing the error:

    Building CXX object CMakeFiles/cmTC_7c364.dir/testCXXCompiler.cxx.obj
    "C:/Program Files (x86)/Intel/oneAPI/compiler/latest/windows/bin/dpcpp.exe"  /nologo -TP   -Wno-sycl-strict  /MDd /Zi /Ob0 /Od /RTC1   /FoCMakeFiles/cmTC_7c364.dir/testCXXCompiler.cxx.obj /FdCMakeFiles/cmTC_7c364.dir/ -c C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/nologo'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/MDd'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/Zi'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/Ob0'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/Od'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/RTC1'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/FoCMakeFiles/cmTC_7c364.dir/testCXXCompiler.cxx.obj'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/FdCMakeFiles/cmTC_7c364.dir/'
    make.exe[1]: *** [CMakeFiles/cmTC_7c364.dir/testCXXCompiler.cxx.obj] Error 1
    make.exe[1]: Leaving directory `C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeTmp'
    make.exe: *** [cmTC_7c364/fast] Error 2

And I can't use clang++ as compiler as mentioned below.

--------------------------------------

tl;dr: how do I invoke cmake so that I can use dpcpp as c++ compiler on windows 10 (to generate Makefile)?

I am trying to build a library+test app (with gtest) however my issue is with CMAKE on windows 10.

It appears that with beta08, dpcpp interface has become more like MSVC compiler (switches starting with / instead of -).

If I use command 

 

cmake -G "Unix Makefiles" -D CMAKE_CXX_COMPILER=dpcpp ..

 

It finds gcc as c compiler and complains that clang & msvc can't be mixed.

 

CMake Error at C:/Program Files/CMake/share/cmake-3.16/Modules/Platform/Windows-Clang.cmake:104 (message):
  The current configuration mixes Clang and MSVC or some other CL compatible
  compiler tool.  This is not supported.  Use either clang or MSVC as both C
  and C++ compilers.

 

 if I give command:

 

cmake -G "Unix Makefiles" -D CMAKE_C_COMPILER=cl -D CMAKE_CXX_COMPILER=clang++ ..

 

It finds MSVC 19.23.28106.4 as C compiler and fails to compiler test c program with errors like;

 

Building C object CMakeFiles/cmTC_bafff.dir/testCCompiler.c.obj
    "C:/Program Files (x86)/Microsoft Visual Studio/2019/Community/VC/Tools/MSVC/14.23.28105/bin/Hostx64/x64/cl.exe"  /nologo   /DWIN32 /D_WINDOWS /W3  /MDd /Zi /Ob0 /Od /RTC1   /FoCMakeFiles/cmTC_bafff.dir/testCCompiler.c.obj /FdCMakeFiles/cmTC_bafff.dir/ /FS -c C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeTmp/testCCompiler.c
    Microsoft (R) C/C++ Optimizing Compiler Version 19.23.28106.4 for x64
    Copyright (C) Microsoft Corporation.  All rights reserved.

    cl : Command line warning D9024 : unrecognized source file type 'C:/Program Files/Git/nologo', object file assumed
    cl : Command line warning D9027 : source file 'C:/Program Files/Git/nologo' ignored
    cl : Command line warning D9024 : unrecognized source file type 'C:/Program Files/Git/DWIN32', object file assumed
    cl : Command line warning D9027 : source file 'C:/Program Files/Git/DWIN32' ignored
    cl : Command line warning D9024 : unrecognized source file type 'C:/Program Files/Git/D_WINDOWS', object file assumed
    cl : Command line warning D9027 : source file 'C:/Program Files/Git/D_WINDOWS' ignored
    cl : Command line warning D9024 : unrecognized source file type 'C:/Program Files/Git/W3', object file assumed
    cl : Command line warning D9027 : source file 'C:/Program Files/Git/W3' ignored
    cl : Command line warning D9024 : unrecognized source file type 'C:/Program Files/Git/MDd', object file assumed
    cl : Command line warning D9027 : source file 'C:/Program Files/Git/MDd' ignored

 

If I add following to CMakeLists.txt file

 

set(CMAKE_CXX_COMPILER "dpcpp")
set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-sycl-strict")

 

and give command

 

cmake -G "Unix Makefiles" ..

 

It again finds gcc and complains that Clang and MSVC can not be mixed (as in first case above)

If I use command (without adding dpcpp to CMakeLists.txt file)

 

cmake -G "Unix Makefiles" -D CMAKE_C_COMPILER=clang -D CMAKE_CXX_COMPILER=clang++ ..

 

It generates build files correctly but when I run make, it compiles my main source but gives following error (the source file is using dpct::device_vector so it includes dpct/dpstd_utils.hpp) for test case files:

 

[ 43%] Linking CXX static library sgm.lib
[ 43%] Built target sgm
Scanning dependencies of target gtest
[ 46%] Building CXX object test/googletest/googlemock/gtest/CMakeFiles/gtest.dir/src/gtest-all.cc.obj
[ 50%] Linking CXX static library gtestd.lib
[ 50%] Built target gtest
Scanning dependencies of target sgm-test
[ 53%] Building CXX object test/CMakeFiles/sgm-test.dir/census_transform_test.dp.cpp.obj
In file included from C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/test/census_transform_test.dp.cpp:3:
In file included from C:\Program Files (x86)\Intel\oneAPI\dpcpp-ct\latest\env\..\include\dpct/dpstd_utils.hpp:26:
In file included from C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\dpstd/execution:49:
In file included from C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/glue_execution_defs.h:59:
In file included from C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/algorithm_impl_hetero.h:21:
In file included from C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/../parallel_backend.h:22:
In file included from C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/parallel_backend_sycl.h:27:
In file included from C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/../../iterator_impl.h:23:
In file included from C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/utils.h:31:
C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/sycl_iterator.h:178:59: error:
      no template named 'mode_tag_t' in namespace 'cl::sycl'
                                                    sycl::mode_tag_t<Mode> tag)
                                                    ~~~~~~^
C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/sycl_iterator.h:185:60: error:
      no template named 'mode_tag_t' in namespace 'cl::sycl'
    begin(sycl::buffer<T, /*dim=*/1, Allocator> buf, sycl::mode_tag_t<Mode> tag, sycl::property::noinit)
                                                     ~~~~~~^
C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/sycl_iterator.h:185:98: error:
      no type named 'noinit' in namespace 'cl::sycl::property'
    begin(sycl::buffer<T, /*dim=*/1, Allocator> buf, sycl::mode_tag_t<Mode> tag, sycl::property::noinit)
                                                                                 ~~~~~~~~~~~~~~~~^
C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/sycl_iterator.h:192:70: error:
      no type named 'noinit' in namespace 'cl::sycl::property'
    begin(sycl::buffer<T, /*dim=*/1, Allocator> buf, sycl::property::noinit)
                                                     ~~~~~~~~~~~~~~~~^
C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/sycl_iterator.h:199:100: error:
      no template named 'mode_tag_t' in namespace 'cl::sycl'
__internal::sycl_iterator<Mode, T, Allocator> end(sycl::buffer<T, /*dim=*/1, Allocator> buf, sycl::mode_tag_t<Mode> tag)
                                                                                             ~~~~~~^
C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/sycl_iterator.h:206:58: error:
      no template named 'mode_tag_t' in namespace 'cl::sycl'
    end(sycl::buffer<T, /*dim=*/1, Allocator> buf, sycl::mode_tag_t<Mode> tag, sycl::property::noinit)
                                                   ~~~~~~^
C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/sycl_iterator.h:206:96: error:
      no type named 'noinit' in namespace 'cl::sycl::property'
    end(sycl::buffer<T, /*dim=*/1, Allocator> buf, sycl::mode_tag_t<Mode> tag, sycl::property::noinit)
                                                                               ~~~~~~~~~~~~~~~~^
C:\Program Files (x86)\Intel\oneAPI\compiler\latest\windows\include\oneapi/dpl/pstl/hetero/dpcpp/sycl_iterator.h:213:94: error:
      no type named 'noinit' in namespace 'cl::sycl::property'
                                                                             sycl::property::noinit)
                                                                             ~~~~~~~~~~~~~~~~^
8 errors generated.
make[2]: *** [test/CMakeFiles/sgm-test.dir/census_transform_test.dp.cpp.obj] Error 1
make[1]: *** [test/CMakeFiles/sgm-test.dir/all] Error 2
make: *** [all] Error 2

 

I have tried to compile this file (census_transform_test.dp.cpp) as stand alone file with clang++ and I get same errors but not when i use dpcpp. 

So my question is, how do I invoke cmake so that I can use dpcpp as c++ compiler on windows 10?

I want to generate make files and not visual studio solution.

I converted all the files from repo libSGM and now trying to build it along with tests so that I can validate the dpct generated cpp code. I can share the converted code if required.

Regards,
Gagan

 

 

0 Kudos
1 Solution
RahulV_intel
Moderator
‎08-14-2020 05:12 AM
11,738 Views
Solved Jump to solution

Hi,

 

Clang/clang++ cannot be used to compile source files containing dpct headers (even if you try to provide dpct headers with -I). DPC++ compiler driver is required to compile dpct codes.

 

To correctly generate Unix makefiles using CMake on Windows, follow these steps:

 

  1. Open "Intel oneAPI command prompt for Microsoft Visual Studio 2019". This step will place DPC++ and other compilers in path. (by sourcing the setvars.bat file)
  2. Make sure that you have the directory containing make.exe in your environment PATH.
  3. Change current directory to your application directory containing CMakeLists.txt.
  4. mkdir build && cd build
  5. cmake -G "Unix Makefiles" -D CMAKE_C_COMPILER=dpcpp-cl -D CMAKE_CXX_COMPILER=dpcpp-cl ..

 

You should be able to see the output as follows:

RahulV_intel_0-1597407568973.png

 

 

To generate VS-2019 project files/Solution files (.VCXproj/.sln) using Cmake, the command would be:

 

cmake -T"Intel(R) oneAPI DPC++ Compiler" ..

 

 

Let me know if you face any issues.

 

Regards,

Rahul

View solution in original post

0 Kudos
Copy link

Link Copied

11 Replies
RahulV_intel
Moderator
‎08-14-2020 05:12 AM
11,739 Views
Solved Jump to solution

Hi,

 

Clang/clang++ cannot be used to compile source files containing dpct headers (even if you try to provide dpct headers with -I). DPC++ compiler driver is required to compile dpct codes.

 

To correctly generate Unix makefiles using CMake on Windows, follow these steps:

 

  1. Open "Intel oneAPI command prompt for Microsoft Visual Studio 2019". This step will place DPC++ and other compilers in path. (by sourcing the setvars.bat file)
  2. Make sure that you have the directory containing make.exe in your environment PATH.
  3. Change current directory to your application directory containing CMakeLists.txt.
  4. mkdir build && cd build
  5. cmake -G "Unix Makefiles" -D CMAKE_C_COMPILER=dpcpp-cl -D CMAKE_CXX_COMPILER=dpcpp-cl ..

 

You should be able to see the output as follows:

RahulV_intel_0-1597407568973.png

 

 

To generate VS-2019 project files/Solution files (.VCXproj/.sln) using Cmake, the command would be:

 

cmake -T"Intel(R) oneAPI DPC++ Compiler" ..

 

 

Let me know if you face any issues.

 

Regards,

Rahul

0 Kudos
Copy link
Shukla__Gagandeep
Novice
‎08-17-2020 02:27 AM
11,716 Views
Solved Jump to solution
In response to RahulV_intel

Hi Rahul,

Both methods are failing on windows 10.

Errors for Unix Makefiles option:

 

C:\Users\intel\Downloads\cudacode\dpct_repos\libSGM_OneAPI\build>cmake -G "Unix Makefiles" -D CMAKE_C_COMPILER=dpcpp-cl -D CMAKE_CXX_COMPILER=dpcpp-cl ..
-- The CXX compiler identification is Clang 11.0.0 with MSVC-like command-line
-- Check for working CXX compiler: C:/Program Files (x86)/Intel/oneAPI/compiler/latest/windows/bin/dpcpp-cl.exe
-- Check for working CXX compiler: C:/Program Files (x86)/Intel/oneAPI/compiler/latest/windows/bin/dpcpp-cl.exe -- broken
CMake Error at C:/Program Files/CMake/share/cmake-3.16/Modules/CMakeTestCXXCompiler.cmake:53 (message):
  The C++ compiler

    "C:/Program Files (x86)/Intel/oneAPI/compiler/latest/windows/bin/dpcpp-cl.exe"

  is not able to compile a simple test program.

  It fails with the following output:

    Change Dir: C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeTmp

    Run Build Command(s):C:/PROGRA~2/GnuWin32/bin/make.exe cmTC_b81e4/fast && C:/PROGRA~2/GnuWin32/bin/make.exe -f CMakeFiles/cmTC_b81e4.dir/build.make CMakeFiles/cmTC_b81e4.dir/build
    make.exe[1]: Entering directory `C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeTmp'
    Building CXX object CMakeFiles/cmTC_b81e4.dir/testCXXCompiler.cxx.obj
    "C:/Program Files (x86)/Intel/oneAPI/compiler/latest/windows/bin/dpcpp-cl.exe"  /nologo -TP   /DWIN32 /D_WINDOWS /W3 /GR /EHsc  /MDd /Zi /Ob0 /Od /RTC1   /FoCMakeFiles/cmTC_b81e4.dir/testCXXCompiler.cxx.obj /FdCMakeFiles/cmTC_b81e4.dir/ -c C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeTmp/testCXXCompiler.cxx
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/nologo'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/DWIN32'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/D_WINDOWS'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/W3'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/GR'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/EHsc'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/MDd'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/Zi'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/Ob0'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/Od'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/RTC1'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/FoCMakeFiles/cmTC_b81e4.dir/testCXXCompiler.cxx.obj'
    dpcpp: error: no such file or directory: 'C:/Program Files/Git/FdCMakeFiles/cmTC_b81e4.dir/'
    make.exe[1]: *** [CMakeFiles/cmTC_b81e4.dir/testCXXCompiler.cxx.obj] Error 1
    make.exe[1]: Leaving directory `C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeTmp'
    make.exe: *** [cmTC_b81e4/fast] Error 2





  CMake will not be able to correctly generate this project.
Call Stack (most recent call first):
  CMakeLists.txt:26 (project)


-- Configuring incomplete, errors occurred!
See also "C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeOutput.log".
See also "C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeError.log".

And for Inntel DPC++ Compiler option:

C:\Users\intel\Downloads\cudacode\dpct_repos\libSGM_OneAPI\build>cmake -T"Intel(R) oneAPI DPC++ Compiler" ..
-- Building for: Visual Studio 16 2019
-- Selecting Windows SDK version 10.0.18362.0 to target Windows 10.0.18363.
-- The CXX compiler identification is Clang 11.0.0 with MSVC-like command-line
CMake Error at CMakeLists.txt:26 (project):
  No CMAKE_CXX_COMPILER could be found.



-- Configuring incomplete, errors occurred!
See also "C:/Users/intel/Downloads/cudacode/dpct_repos/libSGM_OneAPI/build/CMakeFiles/CMakeOutput.log".

 

I'm not sure what am I missing.

Regards,
Gagan

In response to RahulV_intel
0 Kudos
Copy link
RahulV_intel
Moderator
‎08-18-2020 11:38 PM
11,705 Views
Solved Jump to solution

Hi,


Could you attach your CMakeLists.txt file if possible?


I have tried to generate Unix Makefiles on sepia-filter official sample with CMake version 3.17. It seems to work for me with the steps that I had given earlier.


Link: https://github.com/oneapi-src/oneAPI-samples/tree/master/DirectProgramming/DPC%2B%2B/CombinationalLogic/sepia-filter


Let me know if you are able to generate Unix Makefiles for this application with the steps that I had provided earlier.


Thanks,

Rahul


0 Kudos
Copy link
RahulV_intel
Moderator
‎08-24-2020 03:36 AM
11,668 Views
Solved Jump to solution

Hi,


Just a quick reminder to attach your CMakeLists.txt file.


Thanks,

Rahul


0 Kudos
Copy link
Shukla__Gagandeep
Novice
‎08-25-2020 02:05 PM
11,654 Views
Solved Jump to solution
In response to RahulV_intel

Sorry for the delay.

CMakeFiles.are attached.

It is building fine on linux but not on windows.

Regards,
Gagan

 

In response to RahulV_intel
libSGM.zip
0 Kudos
Copy link
RahulV_intel
Moderator
‎08-26-2020 04:07 AM
11,646 Views
Solved Jump to solution

Hi,

 

I don't see any issue with your CMakelists file.

 

Could you also try building the Github sample which I had sent earlier on Windows and see if that works?

 

Alternatively, you may try upgrading your CMake to the latest version and see if it helps.

 

 

Thanks,

Rahul

 

0 Kudos
Copy link
RahulV_intel
Moderator
‎09-01-2020 03:49 AM
11,614 Views
Solved Jump to solution

Hi,


Any updates on this? Did the CMakeLists file from the official sample work for you?


Thanks,

Rahul


0 Kudos
Copy link
Shukla__Gagandeep
Novice
‎09-02-2020 11:25 PM
11,603 Views
Solved Jump to solution
In response to RahulV_intel

Hi Rahul,

Sorry for the delay. I tried it on linux and it worked fine

Now I have updated CMAKE on windows to CMAKE version 3.18.2 and it is working as expecting and generating Makefiles properly for my project libSGM_OneAPI.

Though cmake _T"..." option is still not working on windows. But its okay. I'm not stuck anymore.
Just for reference, error I get is - "No CMAKE_CXX_COMPILER could be found"

Thanks for your support.

Regards,
Gagan

In response to RahulV_intel
0 Kudos
Copy link
RahulV_intel
Moderator
‎09-03-2020 03:00 AM
11,589 Views
Solved Jump to solution

Hi Gagan,


Good to know that it worked.


There could be an integration issue with your VS-19, leading to errors with "cmake -T" while generating VS project files. Running the installation in repair mode could help.


Also, let me know if I can close this thread from my end.



Thanks,

Rahul


0 Kudos
Copy link
RahulV_intel
Moderator
‎09-07-2020 12:32 AM
11,549 Views
Solved Jump to solution

Intel will no longer monitor this thread. However, this thread will remain open for community discussion.

 

0 Kudos
Copy link
John15
Beginner
‎01-10-2022 12:13 PM
8,848 Views
Solved Jump to solution

The 2022.0.1 release of the compiler provides the following support for CMake:

set(IntelDPCPP_DIR /opt/intel/oneapi/compiler/latest/linux/IntelDPCPP)
find_package(IntelDPCPP REQUIRED)

Its usage is documented in:

/opt/intel/oneapi/compiler/2022.0.1/linux/IntelDPCPP/ReadMe.txt .

 

It will enable the dpcpp compiler via the icx[/icpx] compilers and appropriate compiler flags to enable DPCPP compiler through icx[/icpx] binaries .

 

The flags appear to be "--dpcpp -fsycl". icx and icpx are the same binary and probably use argv[0] to figure out the correct compiler driver to call (along with --dpcpp ).

 

The dpcpp compiler will reliably fail the C++ tests.

 

Note that "icx --dpcpp -help -v" and "dpcpp -help -v" generate identical output (but not much different from "icx -help -v".

0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.