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# Copyright 1999-2018 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
EAPI=6
PYTHON_COMPAT=( python2_7 python3_{3,4,5,6} )
inherit python-r1 distutils-r1 eutils
DESCRIPTION="Library for numerical computation using data flow graphs"
HOMEPAGE="https://www.tensorflow.org
https://github.com/tensorflow/tensorflow"
SRC_URI="https://github.com/${PN}/${PN}/archive/v${PV}.tar.gz -> ${P}.tar.gz"
LICENSE="Apache-2.0"
SLOT="0"
KEYWORDS=""
IUSE="cuda mpi"
# TensorFlow 1.7 may be the last time we support Cuda versions below 8.0.
# Starting with TensorFlow 1.8 release, 8.0 will be the minimum supported
# version.
# TensorFlow 1.7 may be the last time we support cuDNN versions below 6.0.
# Starting with TensorFlow 1.8 release, 6.0 will be the minimum supported
# version.
DEPEND="
dev-util/bazel
dev-python/wheel
dev-python/numpy
dev-libs/protobuf-c
dev-python/absl-py
cuda? ( >=dev-util/nvidia-cuda-toolkit-7.0[profiler] >=dev-libs/cudnn-3 )
mpi? ( virtual/mpi )"
#opencl? ( virtual/opencl )"
RDEPEND="${DEPEND}"
# TODO: seems it also supports some MPI implementations
src_configure(){
# there is no setup.py but there is configure
# https://www.tensorflow.org/install/install_sources
# https://www.tensorflow.org/install/install_linux#InstallingNativePip
#
# usage: configure.py [-h] [--workspace WORKSPACE]
python_configure() {
export PYTHON_BIN_PATH=${PYTHON}
export PYTHON_LIB_PATH=${PYTHON_SITEDIR}
export TF_NEED_JEMALLOC=1
export TF_NEED_GCP=0
export TF_NEED_HDFS=0
export TF_NEED_S3=0
export TF_NEED_KAFKA=0
export TF_ENABLE_XLA=0
export TF_NEED_GDR=0
export TF_NEED_VERBS=0
export TF_NEED_OPENCL=0
if use cuda; then
export TF_NEED_CUDA=1
else
export TF_NEED_CUDA=0
fi
if use mpi; then
export TF_NEED_MPI=1
else
export TF_NEED_MPI=0
fi
export TF_NEED_OPENCL_SYCL=0
export CC_OPT_FLAGS=${CFLAGS}
export JAVA_HOME=$(java-config -O)
# TODO: protect by a USE flag test --config=mkl
./configure || die
}
python_foreach_impl python_configure
}
src_compile() {
python_compile() {
# huh, by default tensorflow links static libs? See BUILD file
# set framework_shared_object=true somehow
if use cuda; then
opt="--config=cuda"
else
opt=""
fi
bazel build --config=opt ${opt} /tensorflow/tools/pip_package:build_pip_package || die
bazel-bin/tensorflow/tools/pip_package/build_pip_package tensorflow_pkg || die
unzip -o -d tensorflow_pkg tensorflow_pkg/${P}-cp35-cp35m-linux_x86_64.whl || die
python_domodule tensorflow_pkg/${P}.data/purelib/tensorflow
bazel test || die
bazel shutdown || die
}
python_foreach_impl python_compile
}
src_test() {
python_foreach_impl python_test
}
src_install() {
python_install() {
python_copy_sources tensorflow_pkg/${P}.data/purelib/tensorflow/
python_copy_sources tensorflow_pkg/${P}.dist-info
}
python_foreach_impl python_install
einstalldocs
}
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