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setup.py
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setup.py
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# Copyright 2019 Uber Technologies, Inc. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# ==============================================================================
from __future__ import print_function
import os
import re
import shlex
import stat
import subprocess
import sys
import textwrap
import traceback
from copy import deepcopy
from distutils.errors import CompileError, DistutilsError, \
DistutilsPlatformError, LinkError
from distutils.sysconfig import customize_compiler
from distutils.version import LooseVersion
from setuptools import setup, Extension, find_packages
from setuptools.command.build_ext import build_ext
from horovod import __version__
from horovod.common.util import env
class CMakeExtension(Extension):
def __init__(self, name, cmake_lists_dir='.', sources=[], **kwa):
Extension.__init__(self, name, sources=sources, **kwa)
self.cmake_lists_dir = os.path.abspath(cmake_lists_dir)
tensorflow_mpi_lib = Extension('horovod.tensorflow.mpi_lib', [])
torch_mpi_lib = Extension('horovod.torch.mpi_lib', [])
torch_mpi_lib_impl = Extension('horovod.torch.mpi_lib_impl', [])
torch_mpi_lib_v2 = Extension('horovod.torch.mpi_lib_v2', [])
mxnet_mpi_lib = Extension('horovod.mxnet.mpi_lib', [])
gloo_lib = CMakeExtension('gloo', cmake_lists_dir='third_party/gloo',
sources=[])
mlsl_root = os.environ.get('MLSL_ROOT')
have_mlsl = mlsl_root is not None
# determining if the system has cmake installed
have_cmake = True
try:
subprocess.check_output(['cmake', '--version'])
except:
have_cmake = False
# TODO: remove system check if gloo support MacOX in the future
# https://github.com/facebookincubator/gloo/issues/182
is_mac = os.uname()[0] == 'Darwin'
def is_build_action():
if len(sys.argv) <= 1:
return False
if sys.argv[1].startswith('build'):
return True
if sys.argv[1].startswith('bdist'):
return True
if sys.argv[1].startswith('install'):
return True
def check_tf_version():
try:
import tensorflow as tf
if LooseVersion(tf.__version__) < LooseVersion('1.1.0'):
raise DistutilsPlatformError(
'Your TensorFlow version %s is outdated. '
'Horovod requires tensorflow>=1.1.0' % tf.__version__)
except ImportError:
raise DistutilsPlatformError(
'import tensorflow failed, is it installed?\n\n%s' % traceback.format_exc())
except AttributeError:
# This means that tf.__version__ was not exposed, which makes it *REALLY* old.
raise DistutilsPlatformError(
'Your TensorFlow version is outdated. Horovod requires tensorflow>=1.1.0')
def check_mx_version():
try:
import mxnet as mx
if mx.__version__ < '1.4.0':
raise DistutilsPlatformError(
'Your MXNet version %s is outdated. '
'Horovod requires mxnet>=1.4.0' % mx.__version__)
except ImportError:
raise DistutilsPlatformError(
'import mxnet failed, is it installed?\n\n%s' % traceback.format_exc())
except AttributeError:
raise DistutilsPlatformError(
'Your MXNet version is outdated. Horovod requires mxnet>1.3.0')
def check_avx_supported():
try:
flags_output = subprocess.check_output(
'gcc -march=native -E -v - </dev/null 2>&1 | grep cc1',
shell=True, universal_newlines=True).strip()
flags = shlex.split(flags_output)
return '+f16c' in flags and '+avx' in flags
except subprocess.CalledProcessError:
# Fallback to non-AVX if were not able to get flag information.
return False
def get_cpp_flags(build_ext):
last_err = None
default_flags = ['-std=c++11', '-fPIC', '-O2', '-Wall']
avx_flags = ['-mf16c', '-mavx'] if check_avx_supported() else []
if sys.platform == 'darwin':
# Darwin most likely will have Clang, which has libc++.
flags_to_try = [default_flags + ['-stdlib=libc++'] + avx_flags,
default_flags + avx_flags,
default_flags + ['-stdlib=libc++'],
default_flags]
else:
flags_to_try = [default_flags + avx_flags,
default_flags + ['-stdlib=libc++'] + avx_flags,
default_flags,
default_flags + ['-stdlib=libc++']]
for cpp_flags in flags_to_try:
try:
test_compile(build_ext, 'test_cpp_flags',
extra_compile_preargs=cpp_flags,
code=textwrap.dedent('''\
#include <unordered_map>
void test() {
}
'''))
return cpp_flags
except (CompileError, LinkError):
last_err = 'Unable to determine C++ compilation flags (see error above).'
except Exception:
last_err = 'Unable to determine C++ compilation flags. ' \
'Last error:\n\n%s' % traceback.format_exc()
raise DistutilsPlatformError(last_err)
def get_link_flags(build_ext):
last_err = None
libtool_flags = ['-Wl,-exported_symbols_list,horovod.exp']
ld_flags = ['-Wl,--version-script=horovod.lds']
if sys.platform == 'darwin':
flags_to_try = [libtool_flags, ld_flags]
else:
flags_to_try = [ld_flags, libtool_flags]
for link_flags in flags_to_try:
try:
test_compile(build_ext, 'test_link_flags',
extra_link_preargs=link_flags,
code=textwrap.dedent('''\
void test() {
}
'''))
return link_flags
except (CompileError, LinkError):
last_err = 'Unable to determine C++ link flags (see error above).'
except Exception:
last_err = 'Unable to determine C++ link flags. ' \
'Last error:\n\n%s' % traceback.format_exc()
raise DistutilsPlatformError(last_err)
def get_tf_include_dirs():
import tensorflow as tf
tf_inc = tf.sysconfig.get_include()
return [tf_inc, '%s/external/nsync/public' % tf_inc]
def get_tf_lib_dirs():
import tensorflow as tf
tf_lib = tf.sysconfig.get_lib()
return [tf_lib]
def get_tf_libs(build_ext, lib_dirs, cpp_flags):
last_err = None
for tf_libs in [['tensorflow_framework'], []]:
try:
lib_file = test_compile(build_ext, 'test_tensorflow_libs',
library_dirs=lib_dirs, libraries=tf_libs,
extra_compile_preargs=cpp_flags,
code=textwrap.dedent('''\
void test() {
}
'''))
from tensorflow.python.framework import load_library
load_library.load_op_library(lib_file)
return tf_libs
except (CompileError, LinkError):
last_err = 'Unable to determine -l link flags to use with TensorFlow (see error above).'
except Exception:
last_err = 'Unable to determine -l link flags to use with TensorFlow. ' \
'Last error:\n\n%s' % traceback.format_exc()
raise DistutilsPlatformError(last_err)
def get_tf_abi(build_ext, include_dirs, lib_dirs, libs, cpp_flags):
last_err = None
cxx11_abi_macro = '_GLIBCXX_USE_CXX11_ABI'
for cxx11_abi in ['0', '1']:
try:
lib_file = test_compile(build_ext, 'test_tensorflow_abi',
macros=[(cxx11_abi_macro, cxx11_abi)],
include_dirs=include_dirs,
library_dirs=lib_dirs,
libraries=libs,
extra_compile_preargs=cpp_flags,
code=textwrap.dedent('''\
#include <string>
#include "tensorflow/core/framework/op.h"
#include "tensorflow/core/framework/op_kernel.h"
#include "tensorflow/core/framework/shape_inference.h"
void test() {
auto ignore = tensorflow::strings::StrCat("a", "b");
}
'''))
from tensorflow.python.framework import load_library
load_library.load_op_library(lib_file)
return cxx11_abi_macro, cxx11_abi
except (CompileError, LinkError):
last_err = 'Unable to determine CXX11 ABI to use with TensorFlow (see error above).'
except Exception:
last_err = 'Unable to determine CXX11 ABI to use with TensorFlow. ' \
'Last error:\n\n%s' % traceback.format_exc()
raise DistutilsPlatformError(last_err)
def get_tf_flags(build_ext, cpp_flags):
import tensorflow as tf
try:
return tf.sysconfig.get_compile_flags(), tf.sysconfig.get_link_flags()
except AttributeError:
# fallback to the previous logic
tf_include_dirs = get_tf_include_dirs()
tf_lib_dirs = get_tf_lib_dirs()
tf_libs = get_tf_libs(build_ext, tf_lib_dirs, cpp_flags)
tf_abi = get_tf_abi(build_ext, tf_include_dirs,
tf_lib_dirs, tf_libs, cpp_flags)
compile_flags = []
for include_dir in tf_include_dirs:
compile_flags.append('-I%s' % include_dir)
if tf_abi:
compile_flags.append('-D%s=%s' % tf_abi)
link_flags = []
for lib_dir in tf_lib_dirs:
link_flags.append('-L%s' % lib_dir)
for lib in tf_libs:
link_flags.append('-l%s' % lib)
return compile_flags, link_flags
def get_mx_include_dirs():
import mxnet as mx
return [mx.libinfo.find_include_path()]
def get_mx_lib_dirs():
import mxnet as mx
mx_libs = mx.libinfo.find_lib_path()
mx_lib_dirs = [os.path.dirname(mx_lib) for mx_lib in mx_libs]
return mx_lib_dirs
def get_mx_libs(build_ext, lib_dirs, cpp_flags):
last_err = None
for mx_libs in [['mxnet'], []]:
try:
lib_file = test_compile(build_ext, 'test_mx_libs',
library_dirs=lib_dirs, libraries=mx_libs,
extra_compile_preargs=cpp_flags,
code=textwrap.dedent('''\
void test() {
}
'''))
return mx_libs
except (CompileError, LinkError):
last_err = 'Unable to determine -l link flags to use with MXNet (see error above).'
except Exception:
last_err = 'Unable to determine -l link flags to use with MXNet. ' \
'Last error:\n\n%s' % traceback.format_exc()
raise DistutilsPlatformError(last_err)
def get_mx_flags(build_ext, cpp_flags):
mx_include_dirs = get_mx_include_dirs()
mx_lib_dirs = get_mx_lib_dirs()
mx_libs = get_mx_libs(build_ext, mx_lib_dirs, cpp_flags)
compile_flags = []
has_mkldnn = is_mx_mkldnn()
for include_dir in mx_include_dirs:
compile_flags.append('-I%s' % include_dir)
if has_mkldnn:
mkldnn_include = os.path.join(include_dir, 'mkldnn')
compile_flags.append('-I%s' % mkldnn_include)
link_flags = []
for lib_dir in mx_lib_dirs:
link_flags.append('-Wl,-rpath,%s' % lib_dir)
link_flags.append('-L%s' % lib_dir)
for lib in mx_libs:
link_flags.append('-l%s' % lib)
return compile_flags, link_flags
def get_mpi_flags():
show_command = os.environ.get('HOROVOD_MPICXX_SHOW', 'mpicxx -show')
try:
mpi_show_output = subprocess.check_output(
shlex.split(show_command), universal_newlines=True).strip()
mpi_show_args = shlex.split(mpi_show_output)
if not mpi_show_args[0].startswith('-'):
# Open MPI and MPICH print compiler name as a first word, skip it
mpi_show_args = mpi_show_args[1:]
# strip off compiler call portion and always escape each arg
return ' '.join(['"' + arg.replace('"', '"\'"\'"') + '"'
for arg in mpi_show_args])
except Exception:
raise DistutilsPlatformError(
'%s failed (see error below), is MPI in $PATH?\n'
'Note: If your version of MPI has a custom command to show compilation flags, '
'please specify it with the HOROVOD_MPICXX_SHOW environment variable.\n\n'
'%s' % (show_command, traceback.format_exc()))
def test_compile(build_ext, name, code, libraries=None, include_dirs=None,
library_dirs=None,
macros=None, extra_compile_preargs=None,
extra_link_preargs=None):
test_compile_dir = os.path.join(build_ext.build_temp, 'test_compile')
if not os.path.exists(test_compile_dir):
os.makedirs(test_compile_dir)
source_file = os.path.join(test_compile_dir, '%s.cc' % name)
with open(source_file, 'w') as f:
f.write(code)
compiler = build_ext.compiler
[object_file] = compiler.object_filenames([source_file])
shared_object_file = compiler.shared_object_filename(
name, output_dir=test_compile_dir)
compiler.compile([source_file], extra_preargs=extra_compile_preargs,
include_dirs=include_dirs, macros=macros)
compiler.link_shared_object(
[object_file], shared_object_file, libraries=libraries,
library_dirs=library_dirs,
extra_preargs=extra_link_preargs)
return shared_object_file
def get_cuda_dirs(build_ext, cpp_flags):
cuda_include_dirs = []
cuda_lib_dirs = []
cuda_home = os.environ.get('HOROVOD_CUDA_HOME')
if cuda_home:
cuda_include_dirs += ['%s/include' % cuda_home]
cuda_lib_dirs += ['%s/lib' % cuda_home, '%s/lib64' % cuda_home]
cuda_include = os.environ.get('HOROVOD_CUDA_INCLUDE')
if cuda_include:
cuda_include_dirs += [cuda_include]
cuda_lib = os.environ.get('HOROVOD_CUDA_LIB')
if cuda_lib:
cuda_lib_dirs += [cuda_lib]
if not cuda_include_dirs and not cuda_lib_dirs:
# default to /usr/local/cuda
cuda_include_dirs += ['/usr/local/cuda/include']
cuda_lib_dirs += ['/usr/local/cuda/lib', '/usr/local/cuda/lib64']
try:
test_compile(build_ext, 'test_cuda', libraries=['cudart'],
include_dirs=cuda_include_dirs,
library_dirs=cuda_lib_dirs,
extra_compile_preargs=cpp_flags,
code=textwrap.dedent('''\
#include <cuda_runtime.h>
void test() {
cudaSetDevice(0);
}
'''))
except (CompileError, LinkError):
raise DistutilsPlatformError(
'CUDA library was not found (see error above).\n'
'Please specify correct CUDA location with the HOROVOD_CUDA_HOME '
'environment variable or combination of HOROVOD_CUDA_INCLUDE and '
'HOROVOD_CUDA_LIB environment variables.\n\n'
'HOROVOD_CUDA_HOME - path where CUDA include and lib directories can be found\n'
'HOROVOD_CUDA_INCLUDE - path to CUDA include directory\n'
'HOROVOD_CUDA_LIB - path to CUDA lib directory')
return cuda_include_dirs, cuda_lib_dirs
def get_nccl_vals(build_ext, cuda_include_dirs, cuda_lib_dirs, cpp_flags):
nccl_include_dirs = []
nccl_lib_dirs = []
nccl_libs = []
nccl_home = os.environ.get('HOROVOD_NCCL_HOME')
if nccl_home:
nccl_include_dirs += ['%s/include' % nccl_home]
nccl_lib_dirs += ['%s/lib' % nccl_home, '%s/lib64' % nccl_home]
nccl_include_dir = os.environ.get('HOROVOD_NCCL_INCLUDE')
if nccl_include_dir:
nccl_include_dirs += [nccl_include_dir]
nccl_lib_dir = os.environ.get('HOROVOD_NCCL_LIB')
if nccl_lib_dir:
nccl_lib_dirs += [nccl_lib_dir]
nccl_link_mode = os.environ.get('HOROVOD_NCCL_LINK', 'STATIC')
if nccl_link_mode.upper() == 'SHARED':
nccl_libs += ['nccl']
else:
nccl_libs += ['nccl_static']
try:
test_compile(build_ext, 'test_nccl', libraries=nccl_libs,
include_dirs=nccl_include_dirs + cuda_include_dirs,
library_dirs=nccl_lib_dirs + cuda_lib_dirs,
extra_compile_preargs=cpp_flags,
code=textwrap.dedent('''\
#include <nccl.h>
#if NCCL_MAJOR < 2
#error Horovod requires NCCL 2.0 or later version, please upgrade.
#endif
void test() {
ncclUniqueId nccl_id;
ncclGetUniqueId(&nccl_id);
}
'''))
except (CompileError, LinkError):
raise DistutilsPlatformError(
'NCCL 2.0 library or its later version was not found (see error above).\n'
'Please specify correct NCCL location with the HOROVOD_NCCL_HOME '
'environment variable or combination of HOROVOD_NCCL_INCLUDE and '
'HOROVOD_NCCL_LIB environment variables.\n\n'
'HOROVOD_NCCL_HOME - path where NCCL include and lib directories can be found\n'
'HOROVOD_NCCL_INCLUDE - path to NCCL include directory\n'
'HOROVOD_NCCL_LIB - path to NCCL lib directory')
return nccl_include_dirs, nccl_lib_dirs, nccl_libs
def get_ddl_dirs(build_ext, cuda_include_dirs, cuda_lib_dirs, cpp_flags):
ddl_include_dirs = []
ddl_lib_dirs = []
ddl_home = os.environ.get('HOROVOD_DDL_HOME')
if ddl_home:
ddl_include_dirs += ['%s/include' % ddl_home]
ddl_lib_dirs += ['%s/lib' % ddl_home, '%s/lib64' % ddl_home]
ddl_include_dir = os.environ.get('HOROVOD_DDL_INCLUDE')
if ddl_include_dir:
ddl_include_dirs += [ddl_include_dir]
ddl_lib_dir = os.environ.get('HOROVOD_DDL_LIB')
if ddl_lib_dir:
ddl_lib_dirs += [ddl_lib_dir]
# Keep DDL legacy folders for backward compatibility
if not ddl_include_dirs:
ddl_include_dirs += ['/opt/DL/ddl/include']
if not ddl_lib_dirs:
ddl_lib_dirs += ['/opt/DL/ddl/lib']
try:
test_compile(build_ext, 'test_ddl', libraries=['ddl', 'ddl_pack'],
include_dirs=ddl_include_dirs + cuda_include_dirs,
library_dirs=ddl_lib_dirs + cuda_lib_dirs,
extra_compile_preargs=cpp_flags,
code=textwrap.dedent('''\
#include <ddl.hpp>
void test() {
}
'''))
except (CompileError, LinkError):
raise DistutilsPlatformError(
'IBM PowerAI DDL library was not found (see error above).\n'
'Please specify correct DDL location with the HOROVOD_DDL_HOME '
'environment variable or combination of HOROVOD_DDL_INCLUDE and '
'HOROVOD_DDL_LIB environment variables.\n\n'
'HOROVOD_DDL_HOME - path where DDL include and lib directories can be found\n'
'HOROVOD_DDL_INCLUDE - path to DDL include directory\n'
'HOROVOD_DDL_LIB - path to DDL lib directory')
return ddl_include_dirs, ddl_lib_dirs
def get_common_options(build_ext):
cpp_flags = get_cpp_flags(build_ext)
link_flags = get_link_flags(build_ext)
mpi_flags = get_mpi_flags()
gpu_allreduce = os.environ.get('HOROVOD_GPU_ALLREDUCE')
if gpu_allreduce and gpu_allreduce != 'MPI' and gpu_allreduce != 'NCCL' and \
gpu_allreduce != 'DDL':
raise DistutilsError('HOROVOD_GPU_ALLREDUCE=%s is invalid, supported '
'values are "", "MPI", "NCCL", "DDL".' % gpu_allreduce)
gpu_allgather = os.environ.get('HOROVOD_GPU_ALLGATHER')
if gpu_allgather and gpu_allgather != 'MPI':
raise DistutilsError('HOROVOD_GPU_ALLGATHER=%s is invalid, supported '
'values are "", "MPI".' % gpu_allgather)
gpu_broadcast = os.environ.get('HOROVOD_GPU_BROADCAST')
if gpu_broadcast and gpu_broadcast != 'MPI':
raise DistutilsError('HOROVOD_GPU_BROADCAST=%s is invalid, supported '
'values are "", "MPI".' % gpu_broadcast)
if gpu_allreduce or gpu_allgather or gpu_broadcast:
have_cuda = True
cuda_include_dirs, cuda_lib_dirs = get_cuda_dirs(build_ext, cpp_flags)
else:
have_cuda = False
cuda_include_dirs = cuda_lib_dirs = []
if gpu_allreduce == 'NCCL':
have_nccl = True
nccl_include_dirs, nccl_lib_dirs, nccl_libs = get_nccl_vals(
build_ext, cuda_include_dirs, cuda_lib_dirs, cpp_flags)
else:
have_nccl = False
nccl_include_dirs = nccl_lib_dirs = nccl_libs = []
if gpu_allreduce == 'DDL':
have_ddl = True
ddl_include_dirs, ddl_lib_dirs = get_ddl_dirs(build_ext,
cuda_include_dirs,
cuda_lib_dirs, cpp_flags)
else:
have_ddl = False
ddl_include_dirs = ddl_lib_dirs = []
if (gpu_allreduce == 'NCCL' and (
gpu_allgather == 'MPI' or gpu_broadcast == 'MPI')
and not os.environ.get('HOROVOD_ALLOW_MIXED_GPU_IMPL')):
raise DistutilsError(
'You should not mix NCCL and MPI GPU due to a possible deadlock.\n'
'If you\'re sure you want to mix them, set the '
'HOROVOD_ALLOW_MIXED_GPU_IMPL environment variable to \'1\'.')
MACROS = [('EIGEN_MPL2_ONLY', 1)]
INCLUDES = ['third_party/boost/assert/include',
'third_party/boost/config/include',
'third_party/boost/core/include',
'third_party/boost/detail/include',
'third_party/boost/iterator/include',
'third_party/boost/lockfree/include',
'third_party/boost/mpl/include',
'third_party/boost/parameter/include',
'third_party/boost/predef/include',
'third_party/boost/preprocessor/include',
'third_party/boost/static_assert/include',
'third_party/boost/type_traits/include',
'third_party/boost/utility/include',
'third_party/eigen',
'third_party/flatbuffers/include',
'third_party/lbfgs/include']
SOURCES = ['horovod/common/common.cc',
'horovod/common/fusion_buffer_manager.cc',
'horovod/common/half.cc',
'horovod/common/message.cc',
'horovod/common/mpi_context.cc',
'horovod/common/operations.cc',
'horovod/common/parameter_manager.cc',
'horovod/common/response_cache.cc',
'horovod/common/timeline.cc',
'horovod/common/ops/collective_operations.cc',
'horovod/common/ops/mpi_operations.cc',
'horovod/common/ops/operation_manager.cc',
'horovod/common/optim/bayesian_optimization.cc',
'horovod/common/optim/gaussian_process.cc',
'horovod/common/logging.cc']
COMPILE_FLAGS = cpp_flags + shlex.split(mpi_flags)
LINK_FLAGS = link_flags + shlex.split(mpi_flags)
LIBRARY_DIRS = []
LIBRARIES = []
cpu_operation = os.environ.get('HOROVOD_CPU_OPERATIONS')
if cpu_operation:
print('INFO: Set default CPU operation to ' + cpu_operation)
if cpu_operation.upper() == 'MPI':
MACROS += [('HOROVOD_CPU_OPERATIONS_DEFAULT', "'P'")]
elif cpu_operation.upper() == 'MLSL':
MACROS += [('HOROVOD_CPU_OPERATIONS_DEFAULT', "'M'")]
elif cpu_operation.upper() == 'GLOO':
if is_mac:
raise RuntimeError('Gloo cannot compile on MacOS, please do '
'not set it as default CPU operation.')
elif not have_cmake:
raise RuntimeError('Gloo cannot compile without CMake, '
'please install CMake first.')
else:
MACROS += [('HOROVOD_CPU_OPERATIONS_DEFAULT', "'G'")]
if not is_mac and have_cmake:
MACROS += [('HAVE_GLOO', '1')]
INCLUDES += ['third_party/gloo']
SOURCES += ['horovod/common/gloo_context.cc',
'horovod/common/ops/gloo_operations.cc']
if have_mlsl:
MACROS += [('HAVE_MLSL', '1')]
INCLUDES += [mlsl_root + '/intel64/include/']
SOURCES += ['horovod/common/ops/mlsl_operations.cc']
LIBRARY_DIRS += [mlsl_root + '/intel64/lib/']
LINK_FLAGS += ['-lmlsl']
if have_cuda:
MACROS += [('HAVE_CUDA', '1')]
INCLUDES += cuda_include_dirs
SOURCES += ['horovod/common/ops/cuda_operations.cc',
'horovod/common/ops/mpi_cuda_operations.cc']
LIBRARY_DIRS += cuda_lib_dirs
LIBRARIES += ['cudart']
if have_nccl:
MACROS += [('HAVE_NCCL', '1')]
INCLUDES += nccl_include_dirs
SOURCES += ['horovod/common/ops/nccl_operations.cc']
LIBRARY_DIRS += nccl_lib_dirs
LIBRARIES += nccl_libs
if have_ddl:
MACROS += [('HAVE_DDL', '1')]
INCLUDES += ddl_include_dirs
SOURCES += ['horovod/common/ops/ddl_operations.cc']
LIBRARY_DIRS += ddl_lib_dirs
LIBRARIES += ['ddl', 'ddl_pack']
if gpu_allreduce:
MACROS += [('HOROVOD_GPU_ALLREDUCE', "'%s'" % gpu_allreduce[0])]
if gpu_allgather:
MACROS += [('HOROVOD_GPU_ALLGATHER', "'%s'" % gpu_allgather[0])]
if gpu_broadcast:
MACROS += [('HOROVOD_GPU_BROADCAST', "'%s'" % gpu_broadcast[0])]
return dict(MACROS=MACROS,
INCLUDES=INCLUDES,
SOURCES=SOURCES,
COMPILE_FLAGS=COMPILE_FLAGS,
LINK_FLAGS=LINK_FLAGS,
LIBRARY_DIRS=LIBRARY_DIRS,
LIBRARIES=LIBRARIES)
def enumerate_binaries_in_path():
for path_dir in os.getenv('PATH', '').split(':'):
if os.path.isdir(path_dir):
for bin_file in sorted(os.listdir(path_dir)):
yield path_dir, bin_file
def determine_gcc_version(compiler):
try:
compiler_macros = subprocess.check_output(
'%s -dM -E - </dev/null' % compiler,
shell=True, universal_newlines=True).split('\n')
for m in compiler_macros:
version_match = re.match('^#define __VERSION__ "(.*?)"$', m)
if version_match:
return LooseVersion(version_match.group(1))
print('INFO: Unable to determine version of the compiler %s.' % compiler)
except subprocess.CalledProcessError:
print('INFO: Unable to determine version of the compiler %s.\n%s'
'' % (compiler, traceback.format_exc()))
return None
def find_gxx_compiler_in_path():
compilers = []
for path_dir, bin_file in enumerate_binaries_in_path():
if re.match('^g\\+\\+(?:-\\d+(?:\\.\\d+)*)?$', bin_file):
# g++, or g++-7, g++-4.9, or g++-4.8.5
compiler = os.path.join(path_dir, bin_file)
compiler_version = determine_gcc_version(compiler)
if compiler_version:
compilers.append((compiler, compiler_version))
return compilers
def find_matching_gcc_compiler_path(gxx_compiler_version):
for path_dir, bin_file in enumerate_binaries_in_path():
if re.match('^gcc(?:-\\d+(?:\\.\\d+)*)?$', bin_file):
# gcc, or gcc-7, gcc-4.9, or gcc-4.8.5
compiler = os.path.join(path_dir, bin_file)
compiler_version = determine_gcc_version(compiler)
if compiler_version == gxx_compiler_version:
return compiler
print('INFO: Unable to find gcc compiler (version %s).' % gxx_compiler_version)
return None
def remove_offensive_gcc_compiler_options(compiler_version):
offensive_replacements = dict()
if compiler_version < LooseVersion('4.9'):
offensive_replacements = {
'-Wdate-time': '',
'-fstack-protector-strong': '-fstack-protector'
}
if offensive_replacements:
from sysconfig import get_config_var
cflags = get_config_var('CONFIGURE_CFLAGS')
cppflags = get_config_var('CONFIGURE_CPPFLAGS')
ldshared = get_config_var('LDSHARED')
for k, v in offensive_replacements.items():
cflags = cflags.replace(k, v)
cppflags = cppflags.replace(k, v)
ldshared = ldshared.replace(k, v)
return cflags, cppflags, ldshared
# Use defaults
return None, None, None
def build_tf_extension(build_ext, options):
check_tf_version()
tf_compile_flags, tf_link_flags = get_tf_flags(
build_ext, options['COMPILE_FLAGS'])
tensorflow_mpi_lib.define_macros = options['MACROS']
tensorflow_mpi_lib.include_dirs = options['INCLUDES']
tensorflow_mpi_lib.sources = options['SOURCES'] + \
['horovod/tensorflow/mpi_ops.cc']
tensorflow_mpi_lib.extra_compile_args = options['COMPILE_FLAGS'] + \
tf_compile_flags
tensorflow_mpi_lib.extra_link_args = options['LINK_FLAGS'] + tf_link_flags
tensorflow_mpi_lib.library_dirs = options['LIBRARY_DIRS']
tensorflow_mpi_lib.libraries = options['LIBRARIES']
cc_compiler = cxx_compiler = cflags = cppflags = None
if sys.platform.startswith('linux') and not os.getenv('CC') and not os.getenv('CXX'):
# Determine g++ version compatible with this TensorFlow installation
import tensorflow as tf
if hasattr(tf, 'version'):
# Since TensorFlow 1.13.0
tf_compiler_version = LooseVersion(tf.version.COMPILER_VERSION)
else:
tf_compiler_version = LooseVersion(tf.COMPILER_VERSION)
if tf_compiler_version.version[0] == 4:
# g++ 4.x is ABI-incompatible with g++ 5.x+ due to std::function change
# See: https://github.com/tensorflow/tensorflow/issues/27067
maximum_compiler_version = LooseVersion('5')
else:
maximum_compiler_version = LooseVersion('999')
# Find the compatible compiler of the highest version
compiler_version = LooseVersion('0')
for candidate_cxx_compiler, candidate_compiler_version in find_gxx_compiler_in_path():
if candidate_compiler_version >= tf_compiler_version and \
candidate_compiler_version < maximum_compiler_version:
candidate_cc_compiler = \
find_matching_gcc_compiler_path(candidate_compiler_version)
if candidate_cc_compiler and candidate_compiler_version > compiler_version:
cc_compiler = candidate_cc_compiler
cxx_compiler = candidate_cxx_compiler
compiler_version = candidate_compiler_version
else:
print('INFO: Compiler %s (version %s) is not usable for this TensorFlow '
'installation. Require g++ (version >=%s, <%s).' %
(candidate_cxx_compiler, candidate_compiler_version,
tf_compiler_version, maximum_compiler_version))
if cc_compiler:
print('INFO: Compilers %s and %s (version %s) selected for TensorFlow plugin build.'
'' % (cc_compiler, cxx_compiler, compiler_version))
else:
raise DistutilsPlatformError(
'Could not find compiler compatible with this TensorFlow installation.\n'
'Please check the Horovod website for recommended compiler versions.\n'
'To force a specific compiler version, set CC and CXX environment variables.')
cflags, cppflags, ldshared = remove_offensive_gcc_compiler_options(compiler_version)
try:
with env(CC=cc_compiler, CXX=cxx_compiler, CFLAGS=cflags, CPPFLAGS=cppflags,
LDSHARED=ldshared):
if options['BUILD_GLOO']:
build_cmake(build_ext, gloo_lib, 'tf', tensorflow_mpi_lib)
customize_compiler(build_ext.compiler)
build_ext.build_extension(tensorflow_mpi_lib)
finally:
# Revert to the default compiler settings
customize_compiler(build_ext.compiler)
def parse_version(version_str):
if "dev" in version_str:
return 9999999999
m = re.match('^(\d+)(?:\.(\d+))?(?:\.(\d+))?(?:\.(\d+))?', version_str)
if m is None:
return None
# turn version string to long integer
version = int(m.group(1)) * 10 ** 9
if m.group(2) is not None:
version += int(m.group(2)) * 10 ** 6
if m.group(3) is not None:
version += int(m.group(3)) * 10 ** 3
if m.group(4) is not None:
version += int(m.group(4))
return version
def is_mx_mkldnn():
try:
from mxnet import runtime
features = runtime.Features()
return features.is_enabled('MKLDNN')
except Exception:
msg = 'INFO: Cannot detect if MKLDNN is enabled in MXNet. Please \
set MXNET_USE_MKLDNN=1 if MKLDNN is enabled in your MXNet build.'
if 'linux' not in sys.platform:
# MKLDNN is only enabled by default in MXNet Linux build. Return
# False by default for non-linux build but still allow users to
# enable it by using MXNET_USE_MKLDNN env variable.
print(msg)
return os.environ.get('MXNET_USE_MKLDNN', '0') == '1'
else:
try:
import mxnet as mx
mx_libs = mx.libinfo.find_lib_path()
for mx_lib in mx_libs:
output = subprocess.check_output(['readelf', '-d', mx_lib])
if 'mkldnn' in str(output):
return True
return False
except Exception:
print(msg)
return os.environ.get('MXNET_USE_MKLDNN', '0') == '1'
def is_mx_cuda():
try:
from mxnet import runtime
features = runtime.Features()
return features.is_enabled('CUDA')
except Exception:
if 'linux' in sys.platform:
try:
import mxnet as mx
mx_libs = mx.libinfo.find_lib_path()
for mx_lib in mx_libs:
output = subprocess.check_output(['readelf', '-d', mx_lib])
if 'cuda' in str(output):
return True
return False
except Exception:
return False
return False
def build_mx_extension(build_ext, global_options):
# Backup the options, preventing other plugins access libs that
# compiled with compiler of this plugin
options = deepcopy(global_options)
# First build gloo
if options['BUILD_GLOO']:
build_cmake(build_ext, gloo_lib, 'mxnet', options=options)
check_mx_version()
mx_compile_flags, mx_link_flags = get_mx_flags(
build_ext, options['COMPILE_FLAGS'])
mx_have_cuda = is_mx_cuda()
macro_have_cuda = check_macro(options['MACROS'], 'HAVE_CUDA')
if not mx_have_cuda and macro_have_cuda:
raise DistutilsPlatformError(
'Horovod build with GPU support was requested, but this MXNet '
'installation does not support CUDA.')
# Update HAVE_CUDA to mean that MXNet supports CUDA. Internally, we will be checking
# HOROVOD_GPU_(ALLREDUCE|ALLGATHER|BROADCAST) to decide whether we should use GPU
# version or transfer tensors to CPU memory for those operations.
if mx_have_cuda and not macro_have_cuda:
cuda_include_dirs, cuda_lib_dirs = get_cuda_dirs(build_ext, options[
'COMPILE_FLAGS'])
options['MACROS'] += [('HAVE_CUDA', '1')]
options['INCLUDES'] += cuda_include_dirs
options['SOURCES'] += ['horovod/common/ops/cuda_operations.cc',
'horovod/common/ops/mpi_cuda_operations.cc']
options['LIBRARY_DIRS'] += cuda_lib_dirs
options['LIBRARIES'] += ['cudart']
mxnet_mpi_lib.define_macros = options['MACROS']
if check_macro(options['MACROS'], 'HAVE_CUDA'):
mxnet_mpi_lib.define_macros += [('MSHADOW_USE_CUDA', '1')]
else:
mxnet_mpi_lib.define_macros += [('MSHADOW_USE_CUDA', '0')]
if is_mx_mkldnn():
mxnet_mpi_lib.define_macros += [('MXNET_USE_MKLDNN', '1')]
else:
mxnet_mpi_lib.define_macros += [('MXNET_USE_MKLDNN', '0')]
mxnet_mpi_lib.define_macros += [('MSHADOW_USE_MKL', '0')]
mxnet_mpi_lib.define_macros += [('MSHADOW_USE_F16C', '0')]
mxnet_mpi_lib.include_dirs = options['INCLUDES']
mxnet_mpi_lib.sources = options['SOURCES'] + \
['horovod/mxnet/mpi_ops.cc',
'horovod/mxnet/tensor_util.cc',
'horovod/mxnet/cuda_util.cc',
'horovod/mxnet/adapter.cc']
mxnet_mpi_lib.extra_compile_args = options['COMPILE_FLAGS'] + \
mx_compile_flags
mxnet_mpi_lib.extra_link_args = options['LINK_FLAGS'] + mx_link_flags
mxnet_mpi_lib.library_dirs = options['LIBRARY_DIRS']
mxnet_mpi_lib.libraries = options['LIBRARIES']
build_ext.build_extension(mxnet_mpi_lib)
def dummy_import_torch():
try:
import torch
except:
pass
def check_torch_version():
try:
import torch
if LooseVersion(torch.__version__) < LooseVersion('0.4.0'):
raise DistutilsPlatformError(
'Your PyTorch version %s is outdated. '
'Horovod requires torch>=0.4.0' % torch.__version__)
except ImportError:
raise DistutilsPlatformError(
'import torch failed, is it installed?\n\n%s' % traceback.format_exc())
# parse version
version = parse_version(torch.__version__)
if version is None:
raise DistutilsPlatformError(
'Unable to determine PyTorch version from the version string \'%s\'' % torch.__version__)
return version
def is_torch_cuda():
try:
from torch.utils.ffi import create_extension
cuda_test_ext = create_extension(
name='horovod.torch.test_cuda',
headers=['horovod/torch/dummy.h'],
sources=[],
with_cuda=True,
extra_compile_args=['-std=c11', '-fPIC', '-O2']
)