update dependency to torch 1.8.0

Author: KiddoZhu

README.md

@@ -26,12 +26,12 @@ Installation
 ------------
 
 TorchDrug can be installed on either Linux, Windows or macOS. It is compatible with
-Python 3.7/3.8 and PyTorch >= 1.4.0.
+Python 3.7/3.8 and PyTorch >= 1.8.0.
 
 ### From Conda ###
 
 ```bash
-conda install -c milagraph -c conda-forge torchdrug
+conda install -c milagraph -c conda-forge -c pyg torchdrug
 ```
 
 ### From Pip ###

conda/torchdrug/meta.yaml

@@ -11,8 +11,8 @@ requirements:
     - pip
   run:
     - python >=3.7,<3.9
-    - pytorch >=1.4.0
-    - pytorch_scatter >=1.4.0
+    - pytorch >=1.8.0
+    - pytorch-scatter >=2.0.8
     - decorator
     - numpy >=1.11
     - rdkit

doc/source/installation.rst

@@ -2,7 +2,7 @@ Installation
 ============
 
 TorchDrug can be installed on either Linux, Windows or macOS. It is compatible with
-Python 3.7/3.8 and PyTorch >= 1.4.0.
+Python 3.7/3.8 and PyTorch >= 1.8.0.
 
 For Windows
 
@@ -11,7 +11,7 @@ From Conda
 
 .. code:: bash
 
-    conda install -c milagraph -c conda-forge torchdrug
+    conda install -c milagraph -c conda-forge -c pyg torchdrug
 
 From Pip
 --------

requirements.txt

@@ -1,5 +1,5 @@
-torch>=1.4.0
-torch-scatter>=1.4.0
+torch>=1.8.0
+torch-scatter>=2.0.8
 decorator
 numpy>=1.11
 rdkit-pypi

setup.py

@@ -29,8 +29,8 @@
         test_suite="nose.collector",
         install_requires=
             [
-                "torch>=1.4.0",
-                "torch-scatter>=1.4.0",
+                "torch>=1.8.0",
+                "torch-scatter>=2.0.8",
                 "decorator",
                 "numpy>=1.11",
                 "rdkit-pypi",