【XMR】Could NOT find HWLOC (missing: HWLOC_ LIBRARY HWLOC_ INCLUDE_ DIR

Analysis and solution of error reporting details

Error reporting details

After installing centos8.4 minimal , compile xmrig mining program without pumping, and execute:

cmake .. -DCMAKE_BUILD_TYPE=Release -DUV_LIBRARY=/usr/lib64/libuv.a

Error after compilation:

-- The C compiler identification is GNU 8.4.1
-- The CXX compiler identification is GNU 8.4.1
-- 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
-- Looking for syslog.h
-- Looking for syslog.h - found
CMake Error at /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:165 (message):
  Could NOT find HWLOC (missing: HWLOC_LIBRARY HWLOC_INCLUDE_DIR)
Call Stack (most recent call first):
  /usr/share/cmake/Modules/FindPackageHandleStandardArgs.cmake:458 (_FPHSA_FAILURE_MESSAGE)
  cmake/FindHWLOC.cmake:25 (find_package_handle_standard_args)
  src/backend/cpu/cpu.cmake:30 (find_package)
  src/backend/backend.cmake:1 (include)
  CMakeLists.txt:37 (include)
  
-- Configuring incomplete, errors occurred!
See also "/root/xmrig/build/CMakeFiles/CMakeOutput.log".

Problem analysis

The error message is very clear. The hwloc module cannot be found.

terms of settlement

The solution is simple: install the hwloc module. Unfortunately, centos8.4 minimal can’t be installed directly through Yum at present. You can only download the source code and compile it yourself.

First, we download the hwloc module code:

git clone https://github.com/open-mpi/hwloc.git

Then enter the hwloc source code directory and execute the compilation and installation statement:

./autogen.sh
./configure
make
make install

Then execute the cmake statement

cmake .. -DCMAKE_BUILD_TYPE=Release -DUV_LIBRARY=/usr/lib64/libuv.a

Able to execute successfully:

-- The C compiler identification is GNU 8.4.1
-- The CXX compiler identification is GNU 8.4.1
-- 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
-- Looking for syslog.h
-- Looking for syslog.h - found
-- Found HWLOC: /usr/local/lib/libhwloc.so  
-- Found UV: /usr/lib64/libuv.a  
-- Looking for __builtin___clear_cache
-- Looking for __builtin___clear_cache - found
-- WITH_MSR=ON
-- argon2: detecting feature 'sse2'...
-- Performing Test FEATURE_sse2_NOFLAG
-- Performing Test FEATURE_sse2_NOFLAG - Success
-- argon2: feature 'sse2' detected!
-- argon2: detecting feature 'ssse3'...
-- Performing Test FEATURE_ssse3_NOFLAG
-- Performing Test FEATURE_ssse3_NOFLAG - Failed
-- Performing Test FEATURE_ssse3_FLAG
-- Performing Test FEATURE_ssse3_FLAG - Success
-- argon2: feature 'ssse3' detected!
-- argon2: detecting feature 'xop'...
-- Performing Test FEATURE_xop_NOFLAG
-- Performing Test FEATURE_xop_NOFLAG - Failed
-- Performing Test FEATURE_xop_FLAG
-- Performing Test FEATURE_xop_FLAG - Success
-- argon2: feature 'xop' detected!
-- argon2: detecting feature 'avx2'...
-- Performing Test FEATURE_avx2_NOFLAG
-- Performing Test FEATURE_avx2_NOFLAG - Failed
-- Performing Test FEATURE_avx2_FLAG
-- Performing Test FEATURE_avx2_FLAG - Success
-- argon2: feature 'avx2' detected!
-- argon2: detecting feature 'avx512f'...
-- Performing Test FEATURE_avx512f_NOFLAG
-- Performing Test FEATURE_avx512f_NOFLAG - Failed
-- Performing Test FEATURE_avx512f_FLAG
-- Performing Test FEATURE_avx512f_FLAG - Success
-- argon2: feature 'avx512f' detected!
-- Found OpenSSL: /usr/lib64/libcrypto.so (found version "1.1.1g")  
-- The ASM compiler identification is GNU
-- Found assembler: /usr/bin/cc
-- Configuring done
-- Generating done
-- Build files have been written to: /root/xmrig-base/build

Postscript

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