Installing ScaLAPACK

Use PuTTY to log in to the server as the root user.
Run the following command to decompress the ScaLAPACK installation package:
```
tar  -xvf scalapack-2.1.0.tgz
```
Run the following command to switch to the directory generated after decompression:
```
cd scalapack-2.1.0
```
Run the following command to copy and paste the file:
```
cp SLmake.inc.example SLmake.inc
```
Run the following commands to modify the SLmake.inc file:
1. Open SLmake.inc.
```
vim SLmake.inc
```
2. Press i to enter the insert mode and modify the file as follows:
```
BLASLIB    = /path/to/EXTRA/librefblas.a 
LAPACKLIB  = /path/to/EXTRA/liblapack.a  
LIBS       = $(LAPACKLIB) $(BLASLIB) 
```
3. Press Esc, type :wq!, and press Enter to save the changes and exit.
Run the following command to perform compilation:
```
make -j
```
Run the following command to copy the generated static library to another directory:
```
cp *.a /path/to/EXTRA/mathlib
```

Parent topic: Configuring the Compilation Environment