Environment Requirements

Table 1 lists the hardware requirements.

**Table 1** Hardware requirements
Item	Description
CPU	Kunpeng 920

Table 2 lists the software requirements.

**Table 2** Software requirements
Item	Version	Download Address
SIESTA	4.0.2	https://launchpadlibrarian.net/379220821/siesta-4.0.2.tar.gz
ScaLAPACK	2.0.2	http://www.netlib.org/scalapack/scalapack-2.0.2.tgz

Table 3 lists the OS requirements.

**Table 3** OS requirements
Item	Version	How to Obtain
CentOS	7.6	https://www.centos.org/download/
Kernel	4.14.0-115	Included in the OS image.

Parent topic: SIESTA 4.0.2 Porting Guide (CentOS 7.6)