Installing ParMETIS

Use PuTTY to log in to the server as the root user.
Run the following command to decompress the ParMETIS installation package:
```
tar -xvf parmetis-4.0.3.tar.gz
```
Run the following command to switch to the directory containing the decompressed files:
```
cd parmetis-4.0.3
```
Run the following command to modify the metis/include/metis.h file:
1. Open metis/include/metis.h.
```
vi metis/include/metis.h
```
2. Press i to enter the insert mode and modify the content in line 33.
```
#define IDXTYPEWIDTH 64
```
3. Press Esc, type :wq!, and press Enter to save the file and exit.
Run the following command to install CMake.
```
yum install cmake -y
```
Run the following commands to go to the metis directory and compile and install METIS:
```
cd metis/
make config shared=1 prefix=/path/to/METIS
make install
```
Run the following commands to go to the upper-layer directory and perform compilation and installation:
```
cd ../
make config shared=1 prefix=/path/to/METIS
make install
```

Parent topic: Configuring the Compilation Environment