Improve `scatter` performance + upgrade to `torch-scatter==2.1.0` (#338)

* update

* update

* update

* update

* update

* update

* update

* update

* update

* typo

* typo

.github/workflows/building-conda.yml

@@ -13,7 +13,7 @@ jobs:
         # We have trouble building for Windows - drop for now.
         os: [ubuntu-18.04, macos-10.15]  # windows-2019
         python-version: ['3.7', '3.8', '3.9', '3.10']
-        torch-version: [1.13.0]  # [1.12.0, 1.13.0]
+        torch-version: [1.12.0, 1.13.0]
         cuda-version: ['cpu', 'cu102', 'cu113', 'cu116', 'cu117']
         exclude:
           - torch-version: 1.12.0
@@ -32,8 +32,6 @@ jobs:
             cuda-version: 'cu117'
           - os: windows-2019
             cuda-version: 'cu102'
-          - os: windows-2019  # Complains about CUDA mismatch.
-            python-version: '3.7'
 
     steps:
       - uses: actions/checkout@v2

.github/workflows/building.yml

@@ -63,7 +63,11 @@ jobs:
         if: ${{ runner.os != 'macOS' }}
         run: |
           VERSION=`sed -n "s/^__version__ = '\(.*\)'/\1/p" torch_scatter/__init__.py`
-          sed -i "s/$VERSION/$VERSION+${{ matrix.cuda-version }}/" torch_scatter/__init__.py
+          TORCH_VERSION=`echo "pt${{ matrix.torch-version }}" | sed "s/..$//" | sed "s/\.//g"`
+          CUDA_VERSION=`echo ${{ matrix.cuda-version }}`
+          echo "New version name: $VERSION+$TORCH_VERSION$CUDA_VERSION"
+          sed -i "s/$VERSION/$VERSION+$TORCH_VERSION$CUDA_VERSION/" setup.py
+          sed -i "s/$VERSION/$VERSION+$TORCH_VERSION$CUDA_VERSION/" torch_scatter/__init__.py
         shell:
           bash
 

CMakeLists.txt

 cmake_minimum_required(VERSION 3.0)
 project(torchscatter)
 set(CMAKE_CXX_STANDARD 14)
-set(TORCHSCATTER_VERSION 2.0.9)
+set(TORCHSCATTER_VERSION 2.1.0)
 
 option(WITH_CUDA "Enable CUDA support" OFF)
 option(WITH_PYTHON "Link to Python when building" ON)

conda/pytorch-scatter/meta.yaml

 package:
   name: pytorch-scatter
-  version: 2.0.9
+  version: 2.1.0
 
 source:
   path: ../..

csrc/cuda/scatter_cuda.cu

@@ -7,7 +7,7 @@
 #include "reducer.cuh"
 #include "utils.cuh"
 
-#define THREADS 1024
+#define THREADS 256
 #define BLOCKS(N) (N + THREADS - 1) / THREADS
 
 template <typename scalar_t, ReductionType REDUCE>

setup.py

@@ -11,7 +11,7 @@ from torch.__config__ import parallel_info
 from torch.utils.cpp_extension import (CUDA_HOME, BuildExtension, CppExtension,
                                        CUDAExtension)
 
-__version__ = '2.0.9'
+__version__ = '2.1.0'
 URL = 'https://github.com/rusty1s/pytorch_scatter'
 
 WITH_CUDA = False

torch_scatter/__init__.py

@@ -4,7 +4,7 @@ import os.path as osp
 
 import torch
 
-__version__ = '2.0.9'
+__version__ = '2.1.0'
 
 for library in ['_version', '_scatter', '_segment_csr', '_segment_coo']:
     cuda_spec = importlib.machinery.PathFinder().find_spec(