Doesn't build without docker. libiomp5 not found about ctranslate2

[Manamama]

Disable OpenMP in CmakeList.

Here:

~/downloads/CTranslate2 $ grep OpenMP CMakeLists.txt set(OPENMP_RUNTIME "NONE" CACHE STRING "OpenMP runtime (INTEL, COMP, NONE)")                                  find_package(OpenMP)                                 if(OpenMP_CXX_FOUND)                                   add_compile_options(${OpenMP_CXX_FLAGS})             message(STATUS "Using OpenMP: ${IOMP5_LIBRARY}")

[alexlnkp]

Disable OpenMP in CmakeList.

Here:

~/downloads/CTranslate2 $ grep OpenMP CMakeLists.txt set(OPENMP_RUNTIME "NONE" CACHE STRING "OpenMP runtime (INTEL, COMP, NONE)")                                  find_package(OpenMP)                                 if(OpenMP_CXX_FOUND)                                   add_compile_options(${OpenMP_CXX_FLAGS})             message(STATUS "Using OpenMP: ${IOMP5_LIBRARY}")

Does this disable non-CUDA computations completely? I'm not really familiar with OpenMP and such, so i'm not sure whether this is the solution or just a bandaid

The build files generated correctly though, i've managed to install libctranslate2 successfully!

[minhthuc2502]

@alexlnkp Can you update full log of cmake? I think you have to review the process of installing oneapi.
Try to set : MKL_ROOT (not MKLROOT) to /opt/intel/oneapi/ . Maybe you could change this line in CMakeLists :

find_library(MKL_CORE_LIBRARY NAMES mkl_core PATHS ${MKL_ROOT}/lib ${MKL_ROOT}/lib/intel64)

to:

find_library(MKL_CORE_LIBRARY NAMES mkl_core HINTS ${MKL_ROOT}/lib ${MKL_ROOT}/lib/intel64)

Otherwise, related to the clean-chroot-build error, I think you don't have the correct version of gcc (14). See this.

[alexlnkp]

@alexlnkp Can you update full log of cmake? I think you have to review the process of installing oneapi. Try to set : MKL_ROOT (not MKLROOT) to /opt/intel/oneapi/ .
Didn't seem to help, still the same error Intel OpenMP runtime libiomp5 not found
Even pkgconf can find it without any issues, for some reason.

$ pkgconf --cflags --libs openmp
-I/opt/intel/oneapi/compiler/latest/linux/compiler/include -L/opt/intel/oneapi/compiler/latest/linux/compiler/lib/intel64/ -liomp5

Maybe you could change this line in CMakeLists :

find_library(MKL_CORE_LIBRARY NAMES mkl_core PATHS ${MKL_ROOT}/lib ${MKL_ROOT}/lib/intel64)

to:

find_library(MKL_CORE_LIBRARY NAMES mkl_core HINTS ${MKL_ROOT}/lib ${MKL_ROOT}/lib/intel64)

Didn't seem to help either... The results were practically the same.
Without changes (MKL_ROOT is set):

-- The C compiler identification is GNU 14.1.1
-- The CXX compiler identification is GNU 14.1.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE
-- Build spdlog: 1.10.0
-- Build type: Release
CMake Deprecation Warning at third_party/cpu_features/CMakeLists.txt:1 (cmake_minimum_required):
  Compatibility with CMake < 3.5 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.


-- Looking for dlfcn.h
-- Looking for dlfcn.h - found
-- Looking for getauxval
-- Looking for getauxval - found
-- Compiling for multiple CPU ISA and enabling runtime dispatch
-- Found OpenMP_C: -fopenmp (found version "4.5")
-- Found OpenMP_CXX: -fopenmp (found version "4.5")
-- Found OpenMP: TRUE (found version "4.5")
CMake Error at CMakeLists.txt:280 (message):
  Intel OpenMP runtime libiomp5 not found


-- Configuring incomplete, errors occurred!

With changes (MKL_ROOT is set):

-- The C compiler identification is GNU 14.1.1
-- The CXX compiler identification is GNU 14.1.1
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Check for working C compiler: /usr/bin/cc - skipped
-- Detecting C compile features
-- Detecting C compile features - done
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Check for working CXX compiler: /usr/bin/c++ - skipped
-- Detecting CXX compile features
-- Detecting CXX compile features - done
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD
-- Performing Test CMAKE_HAVE_LIBC_PTHREAD - Success
-- Found Threads: TRUE
-- Build spdlog: 1.10.0
-- Build type: Release
CMake Deprecation Warning at third_party/cpu_features/CMakeLists.txt:1 (cmake_minimum_required):
  Compatibility with CMake < 3.5 will be removed from a future version of
  CMake.

  Update the VERSION argument <min> value or use a ...<max> suffix to tell
  CMake that the project does not need compatibility with older versions.


-- Looking for dlfcn.h
-- Looking for dlfcn.h - found
-- Looking for getauxval
-- Looking for getauxval - found
-- Compiling for multiple CPU ISA and enabling runtime dispatch
-- Found OpenMP_C: -fopenmp (found version "4.5")
-- Found OpenMP_CXX: -fopenmp (found version "4.5")
-- Found OpenMP: TRUE (found version "4.5")
CMake Error at CMakeLists.txt:280 (message):
  Intel OpenMP runtime libiomp5 not found


-- Configuring incomplete, errors occurred!

Otherwise, related to the clean-chroot-build error, I think you don't have the correct version of gcc (14). See this.

Didn't seem that way at the time, but I'll look into that.

[minhthuc2502]

Try change:
${INTEL_ROOT}/oneapi/compiler/latest/linux/compiler/lib/intel64_lin
To
${INTEL_ROOT}/oneapi/compiler/latest/linux/compiler/lib/intel64
It seems like the path of the libiomp5 is different with others paths defined in CMakeLists.

[alexlnkp]

Okay, so i made it work.

@alexlnkp Can you update full log of cmake? I think you have to review the process of installing oneapi. Try to set : MKL_ROOT (not MKLROOT) to /opt/intel/oneapi/

Turns out it's not MKL_ROOT env variable, it's INTELROOT, ONEAPI_ROOT, or MKLROOT. Just doing:

$ export INTELROOT=/opt/intel/

or

$ export MKLROOT=/opt/intel/oneapi

or

$ export ONEAPI_ROOT=/opt/intel/oneapi

Made it work.

As it turns out, by default, MKLROOT env variable is set to /opt/intel/oneapi/mkl/latest. So setting it to /opt/intel/oneapi does, indeed, fix the problem.

Maybe you could change this line in CMakeLists :

find_library(MKL_CORE_LIBRARY NAMES mkl_core PATHS ${MKL_ROOT}/lib ${MKL_ROOT}/lib/intel64)

to:

find_library(MKL_CORE_LIBRARY NAMES mkl_core HINTS ${MKL_ROOT}/lib ${MKL_ROOT}/lib/intel64)

Didn't seem to change anything at all for me. It might be more "correct", though, my issue is not related to this.

I believe that the issue is with the CMakeLists.txt file itself, since it makes sense that the MKLROOT env variable is set to point to the mkl itself, rather than oneapi.