%global _empty_manifest_terminate_build 0
Name:		python-MinkowskiEngine
Version:	0.5.4
Release:	1
Summary:	a convolutional neural network library for sparse tensors
License:	MIT License
URL:		https://github.com/NVIDIA/MinkowskiEngine
Source0:	https://mirrors.nju.edu.cn/pypi/web/packages/21/5c/c543c4bc5fbe73ac3e38465b3da4f24a61f7a4ac5baec867e582e94aa551/MinkowskiEngine-0.5.4.tar.gz
BuildArch:	noarch


%description
## Features
- Unlimited high-dimensional sparse tensor support
- All standard neural network layers (Convolution, Pooling, Broadcast, etc.)
- Dynamic computation graph
- Custom kernel shapes
- Multi-GPU training
- Multi-threaded kernel map
- Multi-threaded compilation
- Highly-optimized GPU kernels
## Requirements
- Ubuntu >= 14.04
- CUDA >= 10.1.243 and **the same CUDA version used for pytorch** (e.g. if you use conda cudatoolkit=11.1, use CUDA=11.1 for MinkowskiEngine compilation)
- pytorch >= 1.7 (pytorch 1.8.1 + CUDA 11.X is [unstable](https://github.com/NVIDIA/MinkowskiEngine/issues/330). To specify CUDA version, please use conda for installation. `conda install -y -c conda-forge -c pytorch pytorch=1.8.1 cudatoolkit=10.2`)
- python >= 3.6
- ninja (for installation)
- GCC >= 7.4.0
## Installation
You can install the Minkowski Engine with `pip`, with anaconda, or on the system directly. If you experience issues installing the package, please checkout the [the installation wiki page](https://github.com/NVIDIA/MinkowskiEngine/wiki/Installation).
If you cannot find a relevant problem, please report the issue on [the github issue page](https://github.com/NVIDIA/MinkowskiEngine/issues).
- [PIP](https://github.com/NVIDIA/MinkowskiEngine#pip) installation
- [Conda](https://github.com/NVIDIA/MinkowskiEngine#anaconda) installation
- [Python](https://github.com/NVIDIA/MinkowskiEngine#system-python) installation
### Pip
The MinkowskiEngine is distributed via [PyPI MinkowskiEngine][pypi-url] which can be installed simply with `pip`.
First, install pytorch following the [instruction](https://pytorch.org). Next, install `openblas`.
```
sudo apt install build-essential python3-dev libopenblas-dev
pip install torch ninja
pip install -U MinkowskiEngine --install-option="--blas=openblas" -v --no-deps
# For pip installation from the latest source
# pip install -U git+https://github.com/NVIDIA/MinkowskiEngine --no-deps
```
If you want to specify arguments for the setup script, please refer to the following command.
```
# Uncomment some options if things don't work
# export CXX=c++; # set this if you want to use a different C++ compiler
# export CUDA_HOME=/usr/local/cuda-11.1; # or select the correct cuda version on your system.
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps \
#                           \ # uncomment the following line if you want to force cuda installation
#                           --install-option="--force_cuda" \
#                           \ # uncomment the following line if you want to force no cuda installation. force_cuda supercedes cpu_only
#                           --install-option="--cpu_only" \
#                           \ # uncomment the following line to override to openblas, atlas, mkl, blas
#                           --install-option="--blas=openblas" \
```
### Anaconda
Due to [errors in pytorch](https://github.com/NVIDIA/MinkowskiEngine/issues/330), pytorch 1.8.1 can only work with CUDA 10.2. To use CUDA 11.1, use pytorch 1.7.1 instead.
#### CUDA 10.2
We recommend `python>=3.6` for installation.
First, follow [the anaconda documentation](https://docs.anaconda.com/anaconda/install/) to install anaconda on your computer.
```
sudo apt install g++-7  # For CUDA 10.2, must use GCC < 8
# Make sure `g++-7 --version` is at least 7.4.0
conda create -n py3-mink python=3.8
conda activate py3-mink
conda install openblas-devel -c anaconda
conda install pytorch=1.8.1 torchvision cudatoolkit=10.2 -c pytorch -c conda-forge
# Install MinkowskiEngine
export CXX=g++-7
# Uncomment the following line to specify the cuda home. Make sure `$CUDA_HOME/nvcc --version` is 10.2
# export CUDA_HOME=/usr/local/cuda-10.2
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps --install-option="--blas_include_dirs=${CONDA_PREFIX}/include" --install-option="--blas=openblas"
# Or if you want local MinkowskiEngine
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
export CXX=g++-7
python setup.py install --blas_include_dirs=${CONDA_PREFIX}/include --blas=openblas
```
#### CUDA 11.X
We recommend `python>=3.6` for installation.
First, follow [the anaconda documentation](https://docs.anaconda.com/anaconda/install/) to install anaconda on your computer.
```
conda create -n py3-mink python=3.8
conda activate py3-mink
conda install openblas-devel -c anaconda
conda install pytorch=1.7.1 torchvision cudatoolkit=11.0 -c pytorch -c conda-forge
# Install MinkowskiEngine
# Uncomment the following line to specify the cuda home. Make sure `$CUDA_HOME/nvcc --version` is 11.X
# export CUDA_HOME=/usr/local/cuda-11.1
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps --install-option="--blas_include_dirs=${CONDA_PREFIX}/include" --install-option="--blas=openblas"
# Or if you want local MinkowskiEngine
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
python setup.py install --blas_include_dirs=${CONDA_PREFIX}/include --blas=openblas
```
### System Python
Like the anaconda installation, make sure that you install pytorch with the same CUDA version that `nvcc` uses.
```
# install system requirements
sudo apt install build-essential python3-dev libopenblas-dev
# Skip if you already have pip installed on your python3
curl https://bootstrap.pypa.io/get-pip.py | python3
# Get pip and install python requirements
python3 -m pip install torch numpy ninja
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
python setup.py install
# To specify blas, CXX, CUDA_HOME and force CUDA installation, use the following command
# export CXX=c++; export CUDA_HOME=/usr/local/cuda-11.1; python setup.py install --blas=openblas --force_cuda
```
## CPU only build and BLAS configuration (MKL)
The Minkowski Engine supports CPU only build on other platforms that do not have NVidia GPUs. Please refer to [quick start](https://nvidia.github.io/MinkowskiEngine/quick_start.html) for more details.
## Quick Start
To use the Minkowski Engine, you first would need to import the engine.
Then, you would need to define the network. If the data you have is not
quantized, you would need to voxelize or quantize the (spatial) data into a
sparse tensor.  Fortunately, the Minkowski Engine provides the quantization
function (`MinkowskiEngine.utils.sparse_quantize`).
### Creating a Network
```python
import torch.nn as nn
import MinkowskiEngine as ME
class ExampleNetwork(ME.MinkowskiNetwork):
    def __init__(self, in_feat, out_feat, D):
        super(ExampleNetwork, self).__init__(D)
        self.conv1 = nn.Sequential(
            ME.MinkowskiConvolution(
                in_channels=in_feat,
                out_channels=64,
                kernel_size=3,
                stride=2,
                dilation=1,
                has_bias=False,
                dimension=D),
            ME.MinkowskiBatchNorm(64),
            ME.MinkowskiReLU())
        self.conv2 = nn.Sequential(
            ME.MinkowskiConvolution(
                in_channels=64,
                out_channels=128,
                kernel_size=3,
                stride=2,
                dimension=D),
            ME.MinkowskiBatchNorm(128),
            ME.MinkowskiReLU())
        self.pooling = ME.MinkowskiGlobalPooling()
        self.linear = ME.MinkowskiLinear(128, out_feat)
    def forward(self, x):
        out = self.conv1(x)
        out = self.conv2(out)
        out = self.pooling(out)
        return self.linear(out)
```
### Forward and backward using the custom network
```python
    # loss and network
    criterion = nn.CrossEntropyLoss()
    net = ExampleNetwork(in_feat=3, out_feat=5, D=2)
    print(net)
    # a data loader must return a tuple of coords, features, and labels.
    coords, feat, label = data_loader()
    input = ME.SparseTensor(feat, coords=coords)
    # Forward
    output = net(input)
    # Loss
    loss = criterion(output.F, label)
```
## Discussion and Documentation
For discussion and questions, please use `minkowskiengine@googlegroups.com`.
For API and general usage, please refer to the [MinkowskiEngine documentation
page](http://nvidia.github.io/MinkowskiEngine/) for more detail.
For issues not listed on the API and feature requests, feel free to submit
an issue on the [github issue
page](https://github.com/NVIDIA/MinkowskiEngine/issues).
## Known Issues
### Too much GPU memory usage or Frequent Out of Memory
There are a few causes for this error.
1. Out of memory during a long running training
MinkowskiEngine is a specialized library that can handle different number of points or different number of non-zero elements at every iteration during training, which is common in point cloud data.
However, pytorch is implemented assuming that the number of point, or size of the activations do not change at every iteration. Thus, the GPU memory caching used by pytorch can result in unnecessarily large memory consumption.
Specifically, pytorch caches chunks of memory spaces to speed up allocation used in every tensor creation. If it fails to find the memory space, it splits an existing cached memory or allocate new space if there's no cached memory large enough for the requested size. Thus, every time we use different number of point (number of non-zero elements) with pytorch, it either split existing cache or reserve new memory. If the cache is too fragmented and allocated all GPU space, it will raise out of memory error.
**To prevent this, you must clear the cache at regular interval with `torch.cuda.empty_cache()`.**
### CUDA 11.1 Installation
```
wget https://developer.download.nvidia.com/compute/cuda/11.1.1/local_installers/cuda_11.1.1_455.32.00_linux.run
sudo sh cuda_11.1.1_455.32.00_linux.run --toolkit --silent --override
# Install MinkowskiEngine with CUDA 11.1
export CUDA_HOME=/usr/local/cuda-11.1; pip install MinkowskiEngine -v --no-deps
```
### Running the MinkowskiEngine on nodes with a large number of CPUs
The MinkowskiEngine uses OpenMP to parallelize the kernel map generation. However, when the number of threads used for parallelization is too large (e.g. OMP_NUM_THREADS=80), the efficiency drops rapidly as all threads simply wait for multithread locks to be released.
In such cases, set the number of threads used for OpenMP. Usually, any number below 24 would be fine, but search for the optimal setup on your system.
```
export OMP_NUM_THREADS=<number of threads to use>; python <your_program.py>
```
## Citing Minkowski Engine
If you use the Minkowski Engine, please cite:
- [4D Spatio-Temporal ConvNets: Minkowski Convolutional Neural Networks, CVPR'19](https://arxiv.org/abs/1904.08755), [[pdf]](https://arxiv.org/pdf/1904.08755.pdf)
```
@inproceedings{choy20194d,
  title={4D Spatio-Temporal ConvNets: Minkowski Convolutional Neural Networks},
  author={Choy, Christopher and Gwak, JunYoung and Savarese, Silvio},
  booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition},
  pages={3075--3084},
  year={2019}
}
```
For multi-threaded kernel map generation, please cite:
```
@inproceedings{choy2019fully,
  title={Fully Convolutional Geometric Features},
  author={Choy, Christopher and Park, Jaesik and Koltun, Vladlen},
  booktitle={Proceedings of the IEEE International Conference on Computer Vision},
  pages={8958--8966},
  year={2019}
}
```
For strided pooling layers for high-dimensional convolutions, please cite:
```
@inproceedings{choy2020high,
  title={High-dimensional Convolutional Networks for Geometric Pattern Recognition},
  author={Choy, Christopher and Lee, Junha and Ranftl, Rene and Park, Jaesik and Koltun, Vladlen},
  booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition},
  year={2020}
}
```
For generative transposed convolution, please cite:
```
@inproceedings{gwak2020gsdn,
  title={Generative Sparse Detection Networks for 3D Single-shot Object Detection},
  author={Gwak, JunYoung and Choy, Christopher B and Savarese, Silvio},
  booktitle={European conference on computer vision},
  year={2020}
}
```
## Unittest
For unittests and gradcheck, use torch >= 1.7
## Projects using Minkowski Engine
Please feel free to update [the wiki page](https://github.com/NVIDIA/MinkowskiEngine/wiki/Usage) to add your projects!
- [Projects using MinkowskiEngine](https://github.com/NVIDIA/MinkowskiEngine/wiki/Usage)
- Segmentation: [3D and 4D Spatio-Temporal Semantic Segmentation, CVPR'19](https://github.com/chrischoy/SpatioTemporalSegmentation)
- Representation Learning: [Fully Convolutional Geometric Features, ICCV'19](https://github.com/chrischoy/FCGF)
- 3D Registration: [Learning multiview 3D point cloud registration, CVPR'20](https://arxiv.org/abs/2001.05119)
- 3D Registration: [Deep Global Registration, CVPR'20](https://arxiv.org/abs/2004.11540)
- Pattern Recognition: [High-Dimensional Convolutional Networks for Geometric Pattern Recognition, CVPR'20](https://arxiv.org/abs/2005.08144)
- Detection: [Generative Sparse Detection Networks for 3D Single-shot Object Detection, ECCV'20](https://arxiv.org/abs/2006.12356)
- Image matching: [Sparse Neighbourhood Consensus Networks, ECCV'20](https://www.di.ens.fr/willow/research/sparse-ncnet/)

%package -n python3-MinkowskiEngine
Summary:	a convolutional neural network library for sparse tensors
Provides:	python-MinkowskiEngine
BuildRequires:	python3-devel
BuildRequires:	python3-setuptools
BuildRequires:	python3-pip
%description -n python3-MinkowskiEngine
## Features
- Unlimited high-dimensional sparse tensor support
- All standard neural network layers (Convolution, Pooling, Broadcast, etc.)
- Dynamic computation graph
- Custom kernel shapes
- Multi-GPU training
- Multi-threaded kernel map
- Multi-threaded compilation
- Highly-optimized GPU kernels
## Requirements
- Ubuntu >= 14.04
- CUDA >= 10.1.243 and **the same CUDA version used for pytorch** (e.g. if you use conda cudatoolkit=11.1, use CUDA=11.1 for MinkowskiEngine compilation)
- pytorch >= 1.7 (pytorch 1.8.1 + CUDA 11.X is [unstable](https://github.com/NVIDIA/MinkowskiEngine/issues/330). To specify CUDA version, please use conda for installation. `conda install -y -c conda-forge -c pytorch pytorch=1.8.1 cudatoolkit=10.2`)
- python >= 3.6
- ninja (for installation)
- GCC >= 7.4.0
## Installation
You can install the Minkowski Engine with `pip`, with anaconda, or on the system directly. If you experience issues installing the package, please checkout the [the installation wiki page](https://github.com/NVIDIA/MinkowskiEngine/wiki/Installation).
If you cannot find a relevant problem, please report the issue on [the github issue page](https://github.com/NVIDIA/MinkowskiEngine/issues).
- [PIP](https://github.com/NVIDIA/MinkowskiEngine#pip) installation
- [Conda](https://github.com/NVIDIA/MinkowskiEngine#anaconda) installation
- [Python](https://github.com/NVIDIA/MinkowskiEngine#system-python) installation
### Pip
The MinkowskiEngine is distributed via [PyPI MinkowskiEngine][pypi-url] which can be installed simply with `pip`.
First, install pytorch following the [instruction](https://pytorch.org). Next, install `openblas`.
```
sudo apt install build-essential python3-dev libopenblas-dev
pip install torch ninja
pip install -U MinkowskiEngine --install-option="--blas=openblas" -v --no-deps
# For pip installation from the latest source
# pip install -U git+https://github.com/NVIDIA/MinkowskiEngine --no-deps
```
If you want to specify arguments for the setup script, please refer to the following command.
```
# Uncomment some options if things don't work
# export CXX=c++; # set this if you want to use a different C++ compiler
# export CUDA_HOME=/usr/local/cuda-11.1; # or select the correct cuda version on your system.
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps \
#                           \ # uncomment the following line if you want to force cuda installation
#                           --install-option="--force_cuda" \
#                           \ # uncomment the following line if you want to force no cuda installation. force_cuda supercedes cpu_only
#                           --install-option="--cpu_only" \
#                           \ # uncomment the following line to override to openblas, atlas, mkl, blas
#                           --install-option="--blas=openblas" \
```
### Anaconda
Due to [errors in pytorch](https://github.com/NVIDIA/MinkowskiEngine/issues/330), pytorch 1.8.1 can only work with CUDA 10.2. To use CUDA 11.1, use pytorch 1.7.1 instead.
#### CUDA 10.2
We recommend `python>=3.6` for installation.
First, follow [the anaconda documentation](https://docs.anaconda.com/anaconda/install/) to install anaconda on your computer.
```
sudo apt install g++-7  # For CUDA 10.2, must use GCC < 8
# Make sure `g++-7 --version` is at least 7.4.0
conda create -n py3-mink python=3.8
conda activate py3-mink
conda install openblas-devel -c anaconda
conda install pytorch=1.8.1 torchvision cudatoolkit=10.2 -c pytorch -c conda-forge
# Install MinkowskiEngine
export CXX=g++-7
# Uncomment the following line to specify the cuda home. Make sure `$CUDA_HOME/nvcc --version` is 10.2
# export CUDA_HOME=/usr/local/cuda-10.2
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps --install-option="--blas_include_dirs=${CONDA_PREFIX}/include" --install-option="--blas=openblas"
# Or if you want local MinkowskiEngine
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
export CXX=g++-7
python setup.py install --blas_include_dirs=${CONDA_PREFIX}/include --blas=openblas
```
#### CUDA 11.X
We recommend `python>=3.6` for installation.
First, follow [the anaconda documentation](https://docs.anaconda.com/anaconda/install/) to install anaconda on your computer.
```
conda create -n py3-mink python=3.8
conda activate py3-mink
conda install openblas-devel -c anaconda
conda install pytorch=1.7.1 torchvision cudatoolkit=11.0 -c pytorch -c conda-forge
# Install MinkowskiEngine
# Uncomment the following line to specify the cuda home. Make sure `$CUDA_HOME/nvcc --version` is 11.X
# export CUDA_HOME=/usr/local/cuda-11.1
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps --install-option="--blas_include_dirs=${CONDA_PREFIX}/include" --install-option="--blas=openblas"
# Or if you want local MinkowskiEngine
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
python setup.py install --blas_include_dirs=${CONDA_PREFIX}/include --blas=openblas
```
### System Python
Like the anaconda installation, make sure that you install pytorch with the same CUDA version that `nvcc` uses.
```
# install system requirements
sudo apt install build-essential python3-dev libopenblas-dev
# Skip if you already have pip installed on your python3
curl https://bootstrap.pypa.io/get-pip.py | python3
# Get pip and install python requirements
python3 -m pip install torch numpy ninja
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
python setup.py install
# To specify blas, CXX, CUDA_HOME and force CUDA installation, use the following command
# export CXX=c++; export CUDA_HOME=/usr/local/cuda-11.1; python setup.py install --blas=openblas --force_cuda
```
## CPU only build and BLAS configuration (MKL)
The Minkowski Engine supports CPU only build on other platforms that do not have NVidia GPUs. Please refer to [quick start](https://nvidia.github.io/MinkowskiEngine/quick_start.html) for more details.
## Quick Start
To use the Minkowski Engine, you first would need to import the engine.
Then, you would need to define the network. If the data you have is not
quantized, you would need to voxelize or quantize the (spatial) data into a
sparse tensor.  Fortunately, the Minkowski Engine provides the quantization
function (`MinkowskiEngine.utils.sparse_quantize`).
### Creating a Network
```python
import torch.nn as nn
import MinkowskiEngine as ME
class ExampleNetwork(ME.MinkowskiNetwork):
    def __init__(self, in_feat, out_feat, D):
        super(ExampleNetwork, self).__init__(D)
        self.conv1 = nn.Sequential(
            ME.MinkowskiConvolution(
                in_channels=in_feat,
                out_channels=64,
                kernel_size=3,
                stride=2,
                dilation=1,
                has_bias=False,
                dimension=D),
            ME.MinkowskiBatchNorm(64),
            ME.MinkowskiReLU())
        self.conv2 = nn.Sequential(
            ME.MinkowskiConvolution(
                in_channels=64,
                out_channels=128,
                kernel_size=3,
                stride=2,
                dimension=D),
            ME.MinkowskiBatchNorm(128),
            ME.MinkowskiReLU())
        self.pooling = ME.MinkowskiGlobalPooling()
        self.linear = ME.MinkowskiLinear(128, out_feat)
    def forward(self, x):
        out = self.conv1(x)
        out = self.conv2(out)
        out = self.pooling(out)
        return self.linear(out)
```
### Forward and backward using the custom network
```python
    # loss and network
    criterion = nn.CrossEntropyLoss()
    net = ExampleNetwork(in_feat=3, out_feat=5, D=2)
    print(net)
    # a data loader must return a tuple of coords, features, and labels.
    coords, feat, label = data_loader()
    input = ME.SparseTensor(feat, coords=coords)
    # Forward
    output = net(input)
    # Loss
    loss = criterion(output.F, label)
```
## Discussion and Documentation
For discussion and questions, please use `minkowskiengine@googlegroups.com`.
For API and general usage, please refer to the [MinkowskiEngine documentation
page](http://nvidia.github.io/MinkowskiEngine/) for more detail.
For issues not listed on the API and feature requests, feel free to submit
an issue on the [github issue
page](https://github.com/NVIDIA/MinkowskiEngine/issues).
## Known Issues
### Too much GPU memory usage or Frequent Out of Memory
There are a few causes for this error.
1. Out of memory during a long running training
MinkowskiEngine is a specialized library that can handle different number of points or different number of non-zero elements at every iteration during training, which is common in point cloud data.
However, pytorch is implemented assuming that the number of point, or size of the activations do not change at every iteration. Thus, the GPU memory caching used by pytorch can result in unnecessarily large memory consumption.
Specifically, pytorch caches chunks of memory spaces to speed up allocation used in every tensor creation. If it fails to find the memory space, it splits an existing cached memory or allocate new space if there's no cached memory large enough for the requested size. Thus, every time we use different number of point (number of non-zero elements) with pytorch, it either split existing cache or reserve new memory. If the cache is too fragmented and allocated all GPU space, it will raise out of memory error.
**To prevent this, you must clear the cache at regular interval with `torch.cuda.empty_cache()`.**
### CUDA 11.1 Installation
```
wget https://developer.download.nvidia.com/compute/cuda/11.1.1/local_installers/cuda_11.1.1_455.32.00_linux.run
sudo sh cuda_11.1.1_455.32.00_linux.run --toolkit --silent --override
# Install MinkowskiEngine with CUDA 11.1
export CUDA_HOME=/usr/local/cuda-11.1; pip install MinkowskiEngine -v --no-deps
```
### Running the MinkowskiEngine on nodes with a large number of CPUs
The MinkowskiEngine uses OpenMP to parallelize the kernel map generation. However, when the number of threads used for parallelization is too large (e.g. OMP_NUM_THREADS=80), the efficiency drops rapidly as all threads simply wait for multithread locks to be released.
In such cases, set the number of threads used for OpenMP. Usually, any number below 24 would be fine, but search for the optimal setup on your system.
```
export OMP_NUM_THREADS=<number of threads to use>; python <your_program.py>
```
## Citing Minkowski Engine
If you use the Minkowski Engine, please cite:
- [4D Spatio-Temporal ConvNets: Minkowski Convolutional Neural Networks, CVPR'19](https://arxiv.org/abs/1904.08755), [[pdf]](https://arxiv.org/pdf/1904.08755.pdf)
```
@inproceedings{choy20194d,
  title={4D Spatio-Temporal ConvNets: Minkowski Convolutional Neural Networks},
  author={Choy, Christopher and Gwak, JunYoung and Savarese, Silvio},
  booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition},
  pages={3075--3084},
  year={2019}
}
```
For multi-threaded kernel map generation, please cite:
```
@inproceedings{choy2019fully,
  title={Fully Convolutional Geometric Features},
  author={Choy, Christopher and Park, Jaesik and Koltun, Vladlen},
  booktitle={Proceedings of the IEEE International Conference on Computer Vision},
  pages={8958--8966},
  year={2019}
}
```
For strided pooling layers for high-dimensional convolutions, please cite:
```
@inproceedings{choy2020high,
  title={High-dimensional Convolutional Networks for Geometric Pattern Recognition},
  author={Choy, Christopher and Lee, Junha and Ranftl, Rene and Park, Jaesik and Koltun, Vladlen},
  booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition},
  year={2020}
}
```
For generative transposed convolution, please cite:
```
@inproceedings{gwak2020gsdn,
  title={Generative Sparse Detection Networks for 3D Single-shot Object Detection},
  author={Gwak, JunYoung and Choy, Christopher B and Savarese, Silvio},
  booktitle={European conference on computer vision},
  year={2020}
}
```
## Unittest
For unittests and gradcheck, use torch >= 1.7
## Projects using Minkowski Engine
Please feel free to update [the wiki page](https://github.com/NVIDIA/MinkowskiEngine/wiki/Usage) to add your projects!
- [Projects using MinkowskiEngine](https://github.com/NVIDIA/MinkowskiEngine/wiki/Usage)
- Segmentation: [3D and 4D Spatio-Temporal Semantic Segmentation, CVPR'19](https://github.com/chrischoy/SpatioTemporalSegmentation)
- Representation Learning: [Fully Convolutional Geometric Features, ICCV'19](https://github.com/chrischoy/FCGF)
- 3D Registration: [Learning multiview 3D point cloud registration, CVPR'20](https://arxiv.org/abs/2001.05119)
- 3D Registration: [Deep Global Registration, CVPR'20](https://arxiv.org/abs/2004.11540)
- Pattern Recognition: [High-Dimensional Convolutional Networks for Geometric Pattern Recognition, CVPR'20](https://arxiv.org/abs/2005.08144)
- Detection: [Generative Sparse Detection Networks for 3D Single-shot Object Detection, ECCV'20](https://arxiv.org/abs/2006.12356)
- Image matching: [Sparse Neighbourhood Consensus Networks, ECCV'20](https://www.di.ens.fr/willow/research/sparse-ncnet/)

%package help
Summary:	Development documents and examples for MinkowskiEngine
Provides:	python3-MinkowskiEngine-doc
%description help
## Features
- Unlimited high-dimensional sparse tensor support
- All standard neural network layers (Convolution, Pooling, Broadcast, etc.)
- Dynamic computation graph
- Custom kernel shapes
- Multi-GPU training
- Multi-threaded kernel map
- Multi-threaded compilation
- Highly-optimized GPU kernels
## Requirements
- Ubuntu >= 14.04
- CUDA >= 10.1.243 and **the same CUDA version used for pytorch** (e.g. if you use conda cudatoolkit=11.1, use CUDA=11.1 for MinkowskiEngine compilation)
- pytorch >= 1.7 (pytorch 1.8.1 + CUDA 11.X is [unstable](https://github.com/NVIDIA/MinkowskiEngine/issues/330). To specify CUDA version, please use conda for installation. `conda install -y -c conda-forge -c pytorch pytorch=1.8.1 cudatoolkit=10.2`)
- python >= 3.6
- ninja (for installation)
- GCC >= 7.4.0
## Installation
You can install the Minkowski Engine with `pip`, with anaconda, or on the system directly. If you experience issues installing the package, please checkout the [the installation wiki page](https://github.com/NVIDIA/MinkowskiEngine/wiki/Installation).
If you cannot find a relevant problem, please report the issue on [the github issue page](https://github.com/NVIDIA/MinkowskiEngine/issues).
- [PIP](https://github.com/NVIDIA/MinkowskiEngine#pip) installation
- [Conda](https://github.com/NVIDIA/MinkowskiEngine#anaconda) installation
- [Python](https://github.com/NVIDIA/MinkowskiEngine#system-python) installation
### Pip
The MinkowskiEngine is distributed via [PyPI MinkowskiEngine][pypi-url] which can be installed simply with `pip`.
First, install pytorch following the [instruction](https://pytorch.org). Next, install `openblas`.
```
sudo apt install build-essential python3-dev libopenblas-dev
pip install torch ninja
pip install -U MinkowskiEngine --install-option="--blas=openblas" -v --no-deps
# For pip installation from the latest source
# pip install -U git+https://github.com/NVIDIA/MinkowskiEngine --no-deps
```
If you want to specify arguments for the setup script, please refer to the following command.
```
# Uncomment some options if things don't work
# export CXX=c++; # set this if you want to use a different C++ compiler
# export CUDA_HOME=/usr/local/cuda-11.1; # or select the correct cuda version on your system.
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps \
#                           \ # uncomment the following line if you want to force cuda installation
#                           --install-option="--force_cuda" \
#                           \ # uncomment the following line if you want to force no cuda installation. force_cuda supercedes cpu_only
#                           --install-option="--cpu_only" \
#                           \ # uncomment the following line to override to openblas, atlas, mkl, blas
#                           --install-option="--blas=openblas" \
```
### Anaconda
Due to [errors in pytorch](https://github.com/NVIDIA/MinkowskiEngine/issues/330), pytorch 1.8.1 can only work with CUDA 10.2. To use CUDA 11.1, use pytorch 1.7.1 instead.
#### CUDA 10.2
We recommend `python>=3.6` for installation.
First, follow [the anaconda documentation](https://docs.anaconda.com/anaconda/install/) to install anaconda on your computer.
```
sudo apt install g++-7  # For CUDA 10.2, must use GCC < 8
# Make sure `g++-7 --version` is at least 7.4.0
conda create -n py3-mink python=3.8
conda activate py3-mink
conda install openblas-devel -c anaconda
conda install pytorch=1.8.1 torchvision cudatoolkit=10.2 -c pytorch -c conda-forge
# Install MinkowskiEngine
export CXX=g++-7
# Uncomment the following line to specify the cuda home. Make sure `$CUDA_HOME/nvcc --version` is 10.2
# export CUDA_HOME=/usr/local/cuda-10.2
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps --install-option="--blas_include_dirs=${CONDA_PREFIX}/include" --install-option="--blas=openblas"
# Or if you want local MinkowskiEngine
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
export CXX=g++-7
python setup.py install --blas_include_dirs=${CONDA_PREFIX}/include --blas=openblas
```
#### CUDA 11.X
We recommend `python>=3.6` for installation.
First, follow [the anaconda documentation](https://docs.anaconda.com/anaconda/install/) to install anaconda on your computer.
```
conda create -n py3-mink python=3.8
conda activate py3-mink
conda install openblas-devel -c anaconda
conda install pytorch=1.7.1 torchvision cudatoolkit=11.0 -c pytorch -c conda-forge
# Install MinkowskiEngine
# Uncomment the following line to specify the cuda home. Make sure `$CUDA_HOME/nvcc --version` is 11.X
# export CUDA_HOME=/usr/local/cuda-11.1
pip install -U git+https://github.com/NVIDIA/MinkowskiEngine -v --no-deps --install-option="--blas_include_dirs=${CONDA_PREFIX}/include" --install-option="--blas=openblas"
# Or if you want local MinkowskiEngine
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
python setup.py install --blas_include_dirs=${CONDA_PREFIX}/include --blas=openblas
```
### System Python
Like the anaconda installation, make sure that you install pytorch with the same CUDA version that `nvcc` uses.
```
# install system requirements
sudo apt install build-essential python3-dev libopenblas-dev
# Skip if you already have pip installed on your python3
curl https://bootstrap.pypa.io/get-pip.py | python3
# Get pip and install python requirements
python3 -m pip install torch numpy ninja
git clone https://github.com/NVIDIA/MinkowskiEngine.git
cd MinkowskiEngine
python setup.py install
# To specify blas, CXX, CUDA_HOME and force CUDA installation, use the following command
# export CXX=c++; export CUDA_HOME=/usr/local/cuda-11.1; python setup.py install --blas=openblas --force_cuda
```
## CPU only build and BLAS configuration (MKL)
The Minkowski Engine supports CPU only build on other platforms that do not have NVidia GPUs. Please refer to [quick start](https://nvidia.github.io/MinkowskiEngine/quick_start.html) for more details.
## Quick Start
To use the Minkowski Engine, you first would need to import the engine.
Then, you would need to define the network. If the data you have is not
quantized, you would need to voxelize or quantize the (spatial) data into a
sparse tensor.  Fortunately, the Minkowski Engine provides the quantization
function (`MinkowskiEngine.utils.sparse_quantize`).
### Creating a Network
```python
import torch.nn as nn
import MinkowskiEngine as ME
class ExampleNetwork(ME.MinkowskiNetwork):
    def __init__(self, in_feat, out_feat, D):
        super(ExampleNetwork, self).__init__(D)
        self.conv1 = nn.Sequential(
            ME.MinkowskiConvolution(
                in_channels=in_feat,
                out_channels=64,
                kernel_size=3,
                stride=2,
                dilation=1,
                has_bias=False,
                dimension=D),
            ME.MinkowskiBatchNorm(64),
            ME.MinkowskiReLU())
        self.conv2 = nn.Sequential(
            ME.MinkowskiConvolution(
                in_channels=64,
                out_channels=128,
                kernel_size=3,
                stride=2,
                dimension=D),
            ME.MinkowskiBatchNorm(128),
            ME.MinkowskiReLU())
        self.pooling = ME.MinkowskiGlobalPooling()
        self.linear = ME.MinkowskiLinear(128, out_feat)
    def forward(self, x):
        out = self.conv1(x)
        out = self.conv2(out)
        out = self.pooling(out)
        return self.linear(out)
```
### Forward and backward using the custom network
```python
    # loss and network
    criterion = nn.CrossEntropyLoss()
    net = ExampleNetwork(in_feat=3, out_feat=5, D=2)
    print(net)
    # a data loader must return a tuple of coords, features, and labels.
    coords, feat, label = data_loader()
    input = ME.SparseTensor(feat, coords=coords)
    # Forward
    output = net(input)
    # Loss
    loss = criterion(output.F, label)
```
## Discussion and Documentation
For discussion and questions, please use `minkowskiengine@googlegroups.com`.
For API and general usage, please refer to the [MinkowskiEngine documentation
page](http://nvidia.github.io/MinkowskiEngine/) for more detail.
For issues not listed on the API and feature requests, feel free to submit
an issue on the [github issue
page](https://github.com/NVIDIA/MinkowskiEngine/issues).
## Known Issues
### Too much GPU memory usage or Frequent Out of Memory
There are a few causes for this error.
1. Out of memory during a long running training
MinkowskiEngine is a specialized library that can handle different number of points or different number of non-zero elements at every iteration during training, which is common in point cloud data.
However, pytorch is implemented assuming that the number of point, or size of the activations do not change at every iteration. Thus, the GPU memory caching used by pytorch can result in unnecessarily large memory consumption.
Specifically, pytorch caches chunks of memory spaces to speed up allocation used in every tensor creation. If it fails to find the memory space, it splits an existing cached memory or allocate new space if there's no cached memory large enough for the requested size. Thus, every time we use different number of point (number of non-zero elements) with pytorch, it either split existing cache or reserve new memory. If the cache is too fragmented and allocated all GPU space, it will raise out of memory error.
**To prevent this, you must clear the cache at regular interval with `torch.cuda.empty_cache()`.**
### CUDA 11.1 Installation
```
wget https://developer.download.nvidia.com/compute/cuda/11.1.1/local_installers/cuda_11.1.1_455.32.00_linux.run
sudo sh cuda_11.1.1_455.32.00_linux.run --toolkit --silent --override
# Install MinkowskiEngine with CUDA 11.1
export CUDA_HOME=/usr/local/cuda-11.1; pip install MinkowskiEngine -v --no-deps
```
### Running the MinkowskiEngine on nodes with a large number of CPUs
The MinkowskiEngine uses OpenMP to parallelize the kernel map generation. However, when the number of threads used for parallelization is too large (e.g. OMP_NUM_THREADS=80), the efficiency drops rapidly as all threads simply wait for multithread locks to be released.
In such cases, set the number of threads used for OpenMP. Usually, any number below 24 would be fine, but search for the optimal setup on your system.
```
export OMP_NUM_THREADS=<number of threads to use>; python <your_program.py>
```
## Citing Minkowski Engine
If you use the Minkowski Engine, please cite:
- [4D Spatio-Temporal ConvNets: Minkowski Convolutional Neural Networks, CVPR'19](https://arxiv.org/abs/1904.08755), [[pdf]](https://arxiv.org/pdf/1904.08755.pdf)
```
@inproceedings{choy20194d,
  title={4D Spatio-Temporal ConvNets: Minkowski Convolutional Neural Networks},
  author={Choy, Christopher and Gwak, JunYoung and Savarese, Silvio},
  booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition},
  pages={3075--3084},
  year={2019}
}
```
For multi-threaded kernel map generation, please cite:
```
@inproceedings{choy2019fully,
  title={Fully Convolutional Geometric Features},
  author={Choy, Christopher and Park, Jaesik and Koltun, Vladlen},
  booktitle={Proceedings of the IEEE International Conference on Computer Vision},
  pages={8958--8966},
  year={2019}
}
```
For strided pooling layers for high-dimensional convolutions, please cite:
```
@inproceedings{choy2020high,
  title={High-dimensional Convolutional Networks for Geometric Pattern Recognition},
  author={Choy, Christopher and Lee, Junha and Ranftl, Rene and Park, Jaesik and Koltun, Vladlen},
  booktitle={Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition},
  year={2020}
}
```
For generative transposed convolution, please cite:
```
@inproceedings{gwak2020gsdn,
  title={Generative Sparse Detection Networks for 3D Single-shot Object Detection},
  author={Gwak, JunYoung and Choy, Christopher B and Savarese, Silvio},
  booktitle={European conference on computer vision},
  year={2020}
}
```
## Unittest
For unittests and gradcheck, use torch >= 1.7
## Projects using Minkowski Engine
Please feel free to update [the wiki page](https://github.com/NVIDIA/MinkowskiEngine/wiki/Usage) to add your projects!
- [Projects using MinkowskiEngine](https://github.com/NVIDIA/MinkowskiEngine/wiki/Usage)
- Segmentation: [3D and 4D Spatio-Temporal Semantic Segmentation, CVPR'19](https://github.com/chrischoy/SpatioTemporalSegmentation)
- Representation Learning: [Fully Convolutional Geometric Features, ICCV'19](https://github.com/chrischoy/FCGF)
- 3D Registration: [Learning multiview 3D point cloud registration, CVPR'20](https://arxiv.org/abs/2001.05119)
- 3D Registration: [Deep Global Registration, CVPR'20](https://arxiv.org/abs/2004.11540)
- Pattern Recognition: [High-Dimensional Convolutional Networks for Geometric Pattern Recognition, CVPR'20](https://arxiv.org/abs/2005.08144)
- Detection: [Generative Sparse Detection Networks for 3D Single-shot Object Detection, ECCV'20](https://arxiv.org/abs/2006.12356)
- Image matching: [Sparse Neighbourhood Consensus Networks, ECCV'20](https://www.di.ens.fr/willow/research/sparse-ncnet/)

%prep
%autosetup -n MinkowskiEngine-0.5.4

%build
%py3_build

%install
%py3_install
install -d -m755 %{buildroot}/%{_pkgdocdir}
if [ -d doc ]; then cp -arf doc %{buildroot}/%{_pkgdocdir}; fi
if [ -d docs ]; then cp -arf docs %{buildroot}/%{_pkgdocdir}; fi
if [ -d example ]; then cp -arf example %{buildroot}/%{_pkgdocdir}; fi
if [ -d examples ]; then cp -arf examples %{buildroot}/%{_pkgdocdir}; fi
pushd %{buildroot}
if [ -d usr/lib ]; then
	find usr/lib -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/lib64 ]; then
	find usr/lib64 -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/bin ]; then
	find usr/bin -type f -printf "/%h/%f\n" >> filelist.lst
fi
if [ -d usr/sbin ]; then
	find usr/sbin -type f -printf "/%h/%f\n" >> filelist.lst
fi
touch doclist.lst
if [ -d usr/share/man ]; then
	find usr/share/man -type f -printf "/%h/%f.gz\n" >> doclist.lst
fi
popd
mv %{buildroot}/filelist.lst .
mv %{buildroot}/doclist.lst .

%files -n python3-MinkowskiEngine -f filelist.lst
%dir %{python3_sitelib}/*

%files help -f doclist.lst
%{_docdir}/*

%changelog
* Mon May 29 2023 Python_Bot <Python_Bot@openeuler.org> - 0.5.4-1
- Package Spec generated