构建TensorFlow：从Bazel根外部导入MPI头

我想在Ubuntu 16.04上构建TensorFlow 1.3（不是1.13），支持MPI（而不是默认的gRPC）。我从Ubuntu repos安装了这个包

libopenmpi-dev

。在运行

configure

脚本时，我提供了

/usr/lib/openmpi

作为MPI工具包目录

我使用以下命令启动生成：

$ bazel build --config=opt --config=cuda //tensorflow/tools/pip_package:build_pip_package

但存在一个标题包含问题：

文件

tensorflow/contrib/mpi/mpi_utils.cc

包括

tensorflow/contrib/mpi/mpi_utils.h

此

mpi_utils.h

包括

第三方/mpi/mpi.h

此

mpi.h

是指向

/usr/lib/openmpi/include/mpi.h

此实际

mpi.h

包含以下行：

而

mpicxx.h

位于文件夹

/usr/lib/openmpi/include/openmpi/ompi/mpi/cxx/

中，该文件夹不在include路径中

我已通过创建指向正确文件夹的符号链接“修复”了此问题：

$ ln -s /usr/lib/openmpi/include/openmpi third_party/mpi/openmpi

现在找到了

mpicxx.h

，但它希望包含

mpi.h

，但由于

mpi.h

不在同一文件夹中，因此失败：

$ bazel build --config=opt --config=cuda //tensorflow/tools/pip_package:build_pip_package
WARNING: /home/arno/tensorflow/tensorflow/contrib/learn/BUILD:15:1: in py_library rule //tensorflow/contrib/learn:learn: target '//tensorflow/contrib/learn:learn' depends on deprecated target '//tensorflow/contrib/session_bundle:exporter': No longer supported. Switch to SavedModel immediately.
WARNING: /home/arno/tensorflow/tensorflow/contrib/learn/BUILD:15:1: in py_library rule //tensorflow/contrib/learn:learn: target '//tensorflow/contrib/learn:learn' depends on deprecated target '//tensorflow/contrib/session_bundle:gc': No longer supported. Switch to SavedModel immediately.
INFO: Found 1 target...
ERROR: /home/arno/tensorflow/tensorflow/contrib/mpi/BUILD:60:1: C++ compilation of rule '//tensorflow/contrib/mpi:mpi_rendezvous_mgr' failed: crosstool_wrapper_driver_is_not_gcc failed: error executing command external/local_config_cuda/crosstool/clang/bin/crosstool_wrapper_driver_is_not_gcc -U_FORTIFY_SOURCE '-D_FORTIFY_SOURCE=1' -fstack-protector -fPIE -Wall -Wunused-but-set-parameter ... (remaining 151 argument(s) skipped): com.google.devtools.build.lib.shell.BadExitStatusException: Process exited with status 1.
In file included from ./third_party/mpi/mpi.h:2673:0,
                 from ./tensorflow/contrib/mpi/mpi_utils.h:27,
                 from ./tensorflow/contrib/mpi/mpi_rendezvous_mgr.h:33,
                 from tensorflow/contrib/mpi/mpi_rendezvous_mgr.cc:18:
./third_party/mpi/openmpi/ompi/mpi/cxx/mpicxx.h:35:17: fatal error: mpi.h: No such file or directory
compilation terminated.
Target //tensorflow/tools/pip_package:build_pip_package failed to build
Use --verbose_failures to see the command lines of failed build steps.
ERROR: /home/arno/tensorflow/tensorflow/tools/pip_package/BUILD:134:1 C++ compilation of rule '//tensorflow/contrib/mpi:mpi_rendezvous_mgr' failed: crosstool_wrapper_driver_is_not_gcc failed: error executing command external/local_config_cuda/crosstool/clang/bin/crosstool_wrapper_driver_is_not_gcc -U_FORTIFY_SOURCE '-D_FORTIFY_SOURCE=1' -fstack-protector -fPIE -Wall -Wunused-but-set-parameter ... (remaining 151 argument(s) skipped): com.google.devtools.build.lib.shell.BadExitStatusException: Process exited with status 1.
INFO: Elapsed time: 6.668s, Critical Path: 4.98s

我已尝试使用以下命令手动将标题的路径添加到GCC的包含路径：

$ bazel build --config=opt --config=cuda //tensorflow/tools/pip_package:build_pip_package --copt='-I/usr/lib/openmpi/include'

…但是我得到了错误，因为Bazel的配置文件中没有声明从

/usr/lib/openmpi/include/openmpi/ompi/mpi/cxx

中包含的头。我不能向Bazel声明它们，因为它不接受绝对路径

我找不到正确的方法来进行构建。我是Bazel的新手，从我所读到的内容来看，构建目录应该是“自包含的”，即包含所有必要的头文件和源文件，但是TensorFlow存储库违反了这一点，在

第三方/mpi

中向

/usr/lib/…

添加了符号链接。更改TensorFlow版本不是一个选项

如何使用OpenMPI支持构建TensorFlow 1.3

编辑：向Bazel build命令添加

-s

选项，如注释中所建议的，可以提供更详细的输出，但我无法辨别使用了哪个编译器。我认为这些是相关的方面：

>>>>> # //tensorflow/core/kernels:transpose_functor [action 'Compiling tensorflow/core/kernels/transpose_functor_cpu.cc']
(cd /home/arno/.cache/bazel/_bazel_arno/e7d941e3336cbc1a05a122432422a066/execroot/tensorflow && \
  exec env - \
    CUDA_TOOLKIT_PATH=/usr/local/cuda \
    CUDNN_INSTALL_PATH=/usr/local/lib \
    GCC_HOST_COMPILER_PATH=/usr/bin/gcc \
    PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/home/arno/bin \
    PYTHON_BIN_PATH=/usr/bin/python3 \
    PYTHON_LIB_PATH=/usr/lib/python3/dist-packages \
    TF_CUDA_CLANG=0 \
    TF_CUDA_COMPUTE_CAPABILITIES=6.2 \
    TF_CUDA_VERSION=8.0 \
    TF_CUDNN_VERSION=6 \
    TF_NEED_CUDA=1 \
    TF_NEED_OPENCL=0 \
  external/local_config_cuda/crosstool/clang/bin/crosstool_wrapper_driver_is_not_gcc -U_FORTIFY_SOURCE '-D_FORTIFY_SOURCE=1' -fstack-protector -fPIE -Wall -Wunused-but-set-parameter -Wno-free-nonheap-object -fno-omit-frame-pointer -g0 -O2 -DNDEBUG -ffunction-sections -fdata-sections '-march=native' '-std=c++11' '-march=native' -MD -MF bazel-out/local_linux-py3-opt/bin/tensorflow/core/kernels/_objs/transpose_functor/tensorflow/core/kernels/transpose_functor_cpu.pic.d '-frandom-seed=bazel-out/local_linux-py3-opt/bin/tensorflow/core/kernels/_objs/transpose_functor/tensorflow/core/kernels/transpose_functor_cpu.pic.o' -fPIC -DEIGEN_MPL2_ONLY -DTENSORFLOW_USE_JEMALLOC -DSNAPPY -DTENSORFLOW_USE_MPI -iquote . -iquote bazel-out/local_linux-py3-opt/genfiles -iquote external/jemalloc -iquote bazel-out/local_linux-py3-opt/genfiles/external/jemalloc -iquote external/bazel_tools -iquote bazel-out/local_linux-py3-opt/genfiles/external/bazel_tools -iquote external/protobuf -iquote bazel-out/local_linux-py3-opt/genfiles/external/protobuf -iquote external/eigen_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/eigen_archive -iquote external/local_config_sycl -iquote bazel-out/local_linux-py3-opt/genfiles/external/local_config_sycl -iquote external/gif_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/gif_archive -iquote external/jpeg -iquote bazel-out/local_linux-py3-opt/genfiles/external/jpeg -iquote external/com_googlesource_code_re2 -iquote bazel-out/local_linux-py3-opt/genfiles/external/com_googlesource_code_re2 -iquote external/farmhash_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/farmhash_archive -iquote external/fft2d -iquote bazel-out/local_linux-py3-opt/genfiles/external/fft2d -iquote external/highwayhash -iquote bazel-out/local_linux-py3-opt/genfiles/external/highwayhash -iquote external/png_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/png_archive -iquote external/zlib_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/zlib_archive -iquote external/snappy -iquote bazel-out/local_linux-py3-opt/genfiles/external/snappy -iquote external/local_config_cuda -iquote bazel-out/local_linux-py3-opt/genfiles/external/local_config_cuda -isystem external/jemalloc/include -isystem bazel-out/local_linux-py3-opt/genfiles/external/jemalloc/include -isystem external/bazel_tools/tools/cpp/gcc3 -isystem external/protobuf/src -isystem bazel-out/local_linux-py3-opt/genfiles/external/protobuf/src -isystem external/eigen_archive -isystem bazel-out/local_linux-py3-opt/genfiles/external/eigen_archive -isystem external/gif_archive/lib -isystem bazel-out/local_linux-py3-opt/genfiles/external/gif_archive/lib -isystem external/farmhash_archive/src -isystem bazel-out/local_linux-py3-opt/genfiles/external/farmhash_archive/src -isystem external/png_archive -isystem bazel-out/local_linux-py3-opt/genfiles/external/png_archive -isystem external/zlib_archive -isystem bazel-out/local_linux-py3-opt/genfiles/external/zlib_archive -isystem external/local_config_cuda/cuda -isystem bazel-out/local_linux-py3-opt/genfiles/external/local_config_cuda/cuda -isystem external/local_config_cuda/cuda/cuda/include -isystem bazel-out/local_linux-py3-opt/genfiles/external/local_config_cuda/cuda/cuda/include -DEIGEN_AVOID_STL_ARRAY -Iexternal/gemmlowp -Wno-sign-compare -fno-exceptions '-DGOOGLE_CUDA=1' -msse3 -pthread '-DGOOGLE_CUDA=1' -no-canonical-prefixes -Wno-builtin-macro-redefined '-D__DATE__="redacted"' '-D__TIMESTAMP__="redacted"' '-D__TIME__="redacted"' -fno-canonical-system-headers -c tensorflow/core/kernels/transpose_functor_cpu.cc -o bazel-out/local_linux-py3-opt/bin/tensorflow/core/kernels/_objs/transpose_functor/tensorflow/core/kernels/transpose_functor_cpu.pic.o)
ERROR: /home/arno/tensorflow/tensorflow/contrib/mpi/BUILD:48:1: C++ compilation of rule '//tensorflow/contrib/mpi:mpi_utils' failed: crosstool_wrapper_driver_is_n
ot_gcc failed: error executing command external/local_config_cuda/crosstool/clang/bin/crosstool_wrapper_driver_is_not_gcc -U_FORTIFY_SOURCE '-D_FORTIFY_SOURCE=1' -fstack-protector -fPIE -Wall -Wunused-but-set-parameter ... (remaining 131 argument(s) skipped): com.google.devtools.build.lib.shell.BadExitStatusException: Process exited with status 1.
In file included from ./third_party/mpi/mpi.h:2673:0,
                 from ./tensorflow/contrib/mpi/mpi_utils.h:27,
                 from tensorflow/contrib/mpi/mpi_utils.cc:18:
./third_party/mpi/openmpi/ompi/mpi/cxx/mpicxx.h:35:17: fatal error: mpi.h: No such file or directory
compilation terminated.

---

解决方法是从源代码构建和安装MVAPICH（MPI工具包路径为

/usr/local

）。问题只存在于OpenMPI。

“我提供了

/usr/lib/openmp

…”这是一个打字错误吗？OpenMP与OpenMPI并没有真正的联系。这是一个输入错误，我会修正它。我提供了

/usr/lib/openmpi

。请尝试将

-s

标志添加到bazel build命令中，如下所示

bazel build-s…

，以显示正在调用的实际命令。构建MPI应用程序时，必须使用

mpicc

和

mpic++

编译器包装器进行编译。特别是为了避免像这样的库特定的头把戏。您可以通过使用

CC=mpicc

和

CXX=mpicxx

环境变量强制bazel使用MPI编译器包装器。您可以在使用bazel的终端中导出这些内容，也可以在bazel调用之前编写它们，就像这样

CC=mpicc CXX=mpicxx bazel build…

。我已经在我的帖子中添加了

bazel build-s…

的输出。我试着设置

CC

和

CXX

，甚至使用

--action\u env=CC--action\u env=CXX

，bazel似乎没有考虑到它们：在从另一个终端构建过程中运行

ps-e

会显示几个

gcc

进程处于活动状态，但是没有mpicc。很高兴你弄明白了，我花了很多时间试图说服bazel承认openmpi安装。

>>>>> # //tensorflow/core/kernels:transpose_functor [action 'Compiling tensorflow/core/kernels/transpose_functor_cpu.cc']
(cd /home/arno/.cache/bazel/_bazel_arno/e7d941e3336cbc1a05a122432422a066/execroot/tensorflow && \
  exec env - \
    CUDA_TOOLKIT_PATH=/usr/local/cuda \
    CUDNN_INSTALL_PATH=/usr/local/lib \
    GCC_HOST_COMPILER_PATH=/usr/bin/gcc \
    PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/usr/local/games:/home/arno/bin \
    PYTHON_BIN_PATH=/usr/bin/python3 \
    PYTHON_LIB_PATH=/usr/lib/python3/dist-packages \
    TF_CUDA_CLANG=0 \
    TF_CUDA_COMPUTE_CAPABILITIES=6.2 \
    TF_CUDA_VERSION=8.0 \
    TF_CUDNN_VERSION=6 \
    TF_NEED_CUDA=1 \
    TF_NEED_OPENCL=0 \
  external/local_config_cuda/crosstool/clang/bin/crosstool_wrapper_driver_is_not_gcc -U_FORTIFY_SOURCE '-D_FORTIFY_SOURCE=1' -fstack-protector -fPIE -Wall -Wunused-but-set-parameter -Wno-free-nonheap-object -fno-omit-frame-pointer -g0 -O2 -DNDEBUG -ffunction-sections -fdata-sections '-march=native' '-std=c++11' '-march=native' -MD -MF bazel-out/local_linux-py3-opt/bin/tensorflow/core/kernels/_objs/transpose_functor/tensorflow/core/kernels/transpose_functor_cpu.pic.d '-frandom-seed=bazel-out/local_linux-py3-opt/bin/tensorflow/core/kernels/_objs/transpose_functor/tensorflow/core/kernels/transpose_functor_cpu.pic.o' -fPIC -DEIGEN_MPL2_ONLY -DTENSORFLOW_USE_JEMALLOC -DSNAPPY -DTENSORFLOW_USE_MPI -iquote . -iquote bazel-out/local_linux-py3-opt/genfiles -iquote external/jemalloc -iquote bazel-out/local_linux-py3-opt/genfiles/external/jemalloc -iquote external/bazel_tools -iquote bazel-out/local_linux-py3-opt/genfiles/external/bazel_tools -iquote external/protobuf -iquote bazel-out/local_linux-py3-opt/genfiles/external/protobuf -iquote external/eigen_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/eigen_archive -iquote external/local_config_sycl -iquote bazel-out/local_linux-py3-opt/genfiles/external/local_config_sycl -iquote external/gif_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/gif_archive -iquote external/jpeg -iquote bazel-out/local_linux-py3-opt/genfiles/external/jpeg -iquote external/com_googlesource_code_re2 -iquote bazel-out/local_linux-py3-opt/genfiles/external/com_googlesource_code_re2 -iquote external/farmhash_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/farmhash_archive -iquote external/fft2d -iquote bazel-out/local_linux-py3-opt/genfiles/external/fft2d -iquote external/highwayhash -iquote bazel-out/local_linux-py3-opt/genfiles/external/highwayhash -iquote external/png_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/png_archive -iquote external/zlib_archive -iquote bazel-out/local_linux-py3-opt/genfiles/external/zlib_archive -iquote external/snappy -iquote bazel-out/local_linux-py3-opt/genfiles/external/snappy -iquote external/local_config_cuda -iquote bazel-out/local_linux-py3-opt/genfiles/external/local_config_cuda -isystem external/jemalloc/include -isystem bazel-out/local_linux-py3-opt/genfiles/external/jemalloc/include -isystem external/bazel_tools/tools/cpp/gcc3 -isystem external/protobuf/src -isystem bazel-out/local_linux-py3-opt/genfiles/external/protobuf/src -isystem external/eigen_archive -isystem bazel-out/local_linux-py3-opt/genfiles/external/eigen_archive -isystem external/gif_archive/lib -isystem bazel-out/local_linux-py3-opt/genfiles/external/gif_archive/lib -isystem external/farmhash_archive/src -isystem bazel-out/local_linux-py3-opt/genfiles/external/farmhash_archive/src -isystem external/png_archive -isystem bazel-out/local_linux-py3-opt/genfiles/external/png_archive -isystem external/zlib_archive -isystem bazel-out/local_linux-py3-opt/genfiles/external/zlib_archive -isystem external/local_config_cuda/cuda -isystem bazel-out/local_linux-py3-opt/genfiles/external/local_config_cuda/cuda -isystem external/local_config_cuda/cuda/cuda/include -isystem bazel-out/local_linux-py3-opt/genfiles/external/local_config_cuda/cuda/cuda/include -DEIGEN_AVOID_STL_ARRAY -Iexternal/gemmlowp -Wno-sign-compare -fno-exceptions '-DGOOGLE_CUDA=1' -msse3 -pthread '-DGOOGLE_CUDA=1' -no-canonical-prefixes -Wno-builtin-macro-redefined '-D__DATE__="redacted"' '-D__TIMESTAMP__="redacted"' '-D__TIME__="redacted"' -fno-canonical-system-headers -c tensorflow/core/kernels/transpose_functor_cpu.cc -o bazel-out/local_linux-py3-opt/bin/tensorflow/core/kernels/_objs/transpose_functor/tensorflow/core/kernels/transpose_functor_cpu.pic.o)
ERROR: /home/arno/tensorflow/tensorflow/contrib/mpi/BUILD:48:1: C++ compilation of rule '//tensorflow/contrib/mpi:mpi_utils' failed: crosstool_wrapper_driver_is_n
ot_gcc failed: error executing command external/local_config_cuda/crosstool/clang/bin/crosstool_wrapper_driver_is_not_gcc -U_FORTIFY_SOURCE '-D_FORTIFY_SOURCE=1' -fstack-protector -fPIE -Wall -Wunused-but-set-parameter ... (remaining 131 argument(s) skipped): com.google.devtools.build.lib.shell.BadExitStatusException: Process exited with status 1.
In file included from ./third_party/mpi/mpi.h:2673:0,
                 from ./tensorflow/contrib/mpi/mpi_utils.h:27,
                 from tensorflow/contrib/mpi/mpi_utils.cc:18:
./third_party/mpi/openmpi/ompi/mpi/cxx/mpicxx.h:35:17: fatal error: mpi.h: No such file or directory
compilation terminated.