[英]Cannot use keras models on Mac M1 with BigSur
我正在尝试使用 tensorflow 的 keras 中的顺序 model。当我执行以下语句时:
model.fit(x_train, y_train, epochs=20, verbose=True, validation_data=(x_dev, y_dev), batch_size=10)
我收到以下错误:
I tensorflow/compiler/mlir/mlir_graph_optimization_pass.cc:116] None of the MLIR optimization passes are enabled (registered 2)
W tensorflow/core/platform/profile_utils/cpu_utils.cc:126] Failed to get CPU frequency: 0 Hz
F tensorflow/core/grappler/costs/op_level_cost_estimator.cc:710] Check failed: 0 < gflops (0 vs. 0)type: "CPU"
我无法理解如何修复它。 谁能帮帮我吗。
从github的这个issue中,我了解到device.frequency()
返回0可能是因为NominalCPUFrequency()
返回了1。但是,这些信息对我来说似乎太抽象了,我无法理解。
我在 macOS 11.4 上完成了以下操作(即使参考说“OS 要求 macOS 12.0+”),python==3.8.2 并且工作 [参考:https://developer.apple.com/metal/tensorflow-plugin /]:
Create a venv on x86 terminal, ie Rosetta Terminal (see: https://dev.to/courier/tips-and-tricks-to-setup-your-apple-m1-for-development-547g ) ie Environment Setup: x86 : AMD Create venv: python3 -m venv ~/PATH/tensorflow-metal (Substitute PATH with your real PATH) Activate the venv: source ~/PATH/tensorflow-metal/bin/activate Update pip: python -m pip install -U pip
安装您需要的任何库/包。 例如: 例如: pip 安装 matplotlib jupyterlab
安装基础 tensorflow: python -m pip 安装 tensorflow-macos
安装金属插件: python -m pip install tensorflow-metal
祝你好运和干杯!
前两个不用担心。
第三个是问题。 您安装了不正确的 TensorFlow 版本。 使用支持 Mac M1 芯片的芯片。
运行以下 bash 脚本下载并安装 TensorFlow。
#!/bin/bash
set -e
VERSION=0.1alpha3
INSTALLER_PACKAGE=tensorflow_macos-$VERSION.tar.gz
INSTALLER_PATH=https://github.com/apple/tensorflow_macos/releases/download/v$VERSION/$INSTALLER_PACKAGE
INSTALLER_SCRIPT=install_venv.sh
echo
# Check to make sure we're good to go.
if [[ $(uname) != Darwin ]] || [[ $(sw_vers -productName) != macOS ]] || [[ $(sw_vers -productVersion) != "11."* ]] ; then
echo "ERROR: TensorFlow with ML Compute acceleration is only available on macOS 11.0 and later."
exit 1
fi
# This
echo "Installation script for pre-release tensorflow_macos $VERSION. Please visit https://github.com/apple/tensorflow_macos "
echo "for instructions and license information."
echo
echo "This script will download tensorflow_macos $VERSION and needed binary dependencies, then install them into a new "
echo "or existing Python 3.8 virtual environment."
# Make sure the user knows what's going on.
read -p 'Continue [y/N]? '
if [[ ! $REPLY =~ ^[Yy]$ ]]
then
exit 1
fi
echo
echo "Downloading installer."
tmp_dir=$(mktemp -d)
pushd $tmp_dir
curl -LO $INSTALLER_PATH
echo "Extracting installer."
tar xf $INSTALLER_PACKAGE
cd tensorflow_macos
function graceful_error () {
echo
echo "Error running installation script with default options. Please fix the above errors and proceed by running "
echo
echo " $PWD/$INSTALLER_SCRIPT --prompt"
echo
echo
exit 1
}
bash ./$INSTALLER_SCRIPT --prompt || graceful_error
popd
rm -rf $tmp_dir
这可能根本没有帮助,但由于我遇到了同样的问题,我设法让 model 在没有此处提供的解决方案(我将很快尝试)的情况下进行训练,只需像这样更改我的 Y_test(0s 和 1s),当制作 train_test_split: ( to_categorical(label
)。所以:
X_train, X_test, Y_train, Y_test = train_test_split(dataset,
to_categorical(label),
test_size=.2,
random_state=42)
然后,在训练 model 时,我收到以下消息 - 我不完全理解:
2022-04-03 23:10:08.941296: I tensorflow/core/grappler/optimizers/custom_graph_optimizer_registry.cc:112] device_type GPU 的插件优化器已启用。
因此,这并不是一个真正的解决方案,而是一个临时的解决方法——或者它可能会让人深入了解哪里出了问题。
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