List of causes for LNK2038, MSVS2017 MAGMA

Question

My goal is by compiling (pun not intended) a list of causes for LNK2038 "mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2'" that others may follow methodically to debug their own situations, my situation will be resolved

My situation:

Requirements:

• Windows 10
• CMake
• MSVS 2017
• Intel Paralax Studio XE
• CUDA

To reproduce:

1. Download MAGMA

2. Run CMake GUI

   • Manually set GPU_TARGET=Pascal (My Card: GeForce GTX 1070 Compute Capability: 6.1)
   • Manually set MKLROOT=D:/Program Files (x86)/IntelSWTools/parallel_studio_xe_2019.0.045/compilers_and_libraries_2019/windows/mkl (as instructed in the README-Windows)

   • LAPACK_LIBRARIES: use https://software.intel.com/en-us/articles/intel-mkl-link-line-advisor to determine

     • My choice
     • D:/Program Files (x86)/IntelSWTools/parallel_studio_xe_2019.0.045/compilers_and_libraries_2019/windows/mkl/lib/intel64_win/mkl_intel_lp64.lib;D:/Program Files (x86)/IntelSWTools/parallel_studio_xe_2019.0.045/compilers_and_libraries_2019/windows/mkl/lib/intel64_win/mkl_intel_thread.lib;D:/Program Files (x86)/IntelSWTools/parallel_studio_xe_2019.0.045/compilers_and_libraries_2019/windows/mkl/lib/intel64_win/mkl_core.lib;D:/Program Files (x86)/IntelSWTools/compilers_and_libraries_2019.0.117/windows/compiler/lib/intel64_win/libiomp5md.lib

3. From the generated VS solution, compile in Debug mode magma and magma_sparse projects (no need to compile the 600+ test projects)

4. In a separate folder put the example code and the CMakeLists.txt

    add_executable(magma-test example_sparse.cpp) find_package( CUDA ) # just to set CUDA_INCLUDE_DIRS target_include_directories(magma-test PUBLIC D:/Work/Magma/magma-2.4.0/include D:/Work/Magma/magma-2.4.0/sparse/include ${CUDA_INCLUDE_DIRS}) target_link_libraries(magma-test debug D:/Work/Magma/magma-2.4.0/build/lib/Debug/magma.lib debug D:/Work/Magma/magma-2.4.0/build/lib/Debug/magma_sparse.lib) set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MT") set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd") 

5. Run CMake (Configure, Generate)

6. Open VS solution, and compile in Debug mode

Problematic outcome:

1>magma_sparse.lib(magma_sparse_generated_djacobisetup.cu.obj) : error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in magma.lib(interface.obj)

1>magma_sparse.lib(magma_sparse_generated_djacobisetup.cu.obj) : error LNK2038: mismatch detected for 'RuntimeLibrary': value 'MT_StaticRelease' doesn't match value 'MTd_StaticDebug' in magma.lib(interface.obj)

----------

Things to check upon LNK2038:

1. All dependencies (*.lib files) were compiled with the same "Debug/Release" flags
   • Double check the dependencies actually being used by Right-click on your Project -> Properties -> Linker -> Input -> Additional Dependencies
   • Go to each dependency project and to your project, and check the build flags by Right-click on Project -> Properties -> C/C++ -> Code Generation -> Runtime Library

Answer 1

A CMakeLists.txt that "resolves" the above error, compiles and runs is:

add_executable(magma-test example_sparse.cpp)

find_package( CUDA ) 
set( MKLROOT "D:/Program Files (x86)/IntelSWTools/parallel_studio_xe_2019.0.045/compilers_and_libraries_2019/windows/mkl" )
set( LAPACK_LIBRARIES 
   "D:/Program Files (x86)/IntelSWTools/parallel_studio_xe_2019.0.045/compilers_and_libraries_2019/windows/mkl/lib/intel64_win/mkl_intel_lp64.lib"
   "D:/Program Files (x86)/IntelSWTools/parallel_studio_xe_2019.0.045/compilers_and_libraries_2019/windows/mkl/lib/intel64_win/mkl_intel_thread.lib"
   "D:/Program Files (x86)/IntelSWTools/parallel_studio_xe_2019.0.045/compilers_and_libraries_2019/windows/mkl/lib/intel64_win/mkl_core.lib"
   "D:/Program Files (x86)/IntelSWTools/compilers_and_libraries_2019.0.117/windows/compiler/lib/intel64_win/libiomp5md.lib")

target_include_directories(magma-test PUBLIC 
   "D:/Work/Magma/magma-2.4.0/include" 
   "D:/Work/Magma/magma-2.4.0/sparse/include" 
   ${CUDA_INCLUDE_DIRS}
   ${MKLROOT}/include)
target_link_libraries(magma-test 
   ${CUDA_CUDART_LIBRARY}
   ${CUDA_CUBLAS_LIBRARIES}
   ${CUDA_cusparse_LIBRARY}
   ${LAPACK_LIBRARIES}
   debug D:/Work/Magma/magma-2.4.0/build/lib/Debug/magma.lib 
   debug D:/Work/Magma/magma-2.4.0/build/lib/Debug/magma_sparse.lib
   optimized D:/Work/Magma/magma-2.4.0/build/lib/Release/magma.lib 
   optimized D:/Work/Magma/magma-2.4.0/build/lib/Release/magma_sparse.lib)

set(CMAKE_CXX_FLAGS_RELEASE "${CMAKE_CXX_FLAGS_RELEASE} /MT")
set(CMAKE_CXX_FLAGS_DEBUG "${CMAKE_CXX_FLAGS_DEBUG} /MTd")

The CUDA and MKL libraries that MAGMA uses upon compilation seemingly also have to be provided for code that uses MAGMA libraries

EDIT: Wait, no. It's compiling and running in Release, but not in Debug..