編譯Caffe時出錯

Question

我正在嘗試在Ubuntu 16.04中使用OpenBLAS編譯Caffe。 我已經下載並編譯了帶有make NO_AFFINITY = 1 USE_OPENMP = 1的 OpenBLAS，OpenBLAS編譯很好，它的所有測試也都在運行

OpenBLAS build complete. (BLAS CBLAS LAPACK LAPACKE)

  OS               ... Linux             
  Architecture     ... x86_64               
  BINARY           ... 64bit                 
  C compiler       ... GCC  (command line : gcc)
  Fortran compiler ... GFORTRAN  (command line : gfortran)
  Library Name     ... libopenblas_sandybridgep-r0.2.20.dev.a (Multi threaded; Max num-threads is 4)

 Use OpenMP in the multithreading. Because of ignoring OPENBLAS_NUM_THREADS and GOTO_NUM_THREADS flags, 
 you should use OMP_NUM_THREADS environment variable to control the number of threads.

但是，在Caffe安裝中與OpenBLAS libs鏈接會產生以下錯誤

鏈接CXX可執行文件upgrade_net_proto_binary /opt/OpenBLAS/lib/libopenblas.so：對`GOMP_parallel@GOMP_4.0'的未定義引用collect2：錯誤：ld返回了1個退出狀態工具/CMakeFiles/upgrade_net_proto_binary.dir/build.make:129：配方目標'tools / upgrade_net_proto_binary'失敗make [2]： * [tools / upgrade_net_proto_binary]錯誤1 CMakeFiles / Makefile2：403：目標'tools / CMakeFiles / upgrade_net_proto_binary.dir / all'的配方失敗make [1]：* [tools / CMakeFiles / upgrade_net_proto_binary.dir / all]錯誤2

Answer 1

原因很可能是您要鏈接到已編譯的OpenBLAS，而不是安裝它並鏈接到安裝。 運行make ，應運行make install PREFIX=/path/to/install/OpenBLAS ，然后應鏈接到已安裝的版本。