Environment Requirements

Table 1 lists the hardware requirements.

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

Table 2-2 lists the software requirements.

**Table 2** Software requirements
Item	Version	Download Link
CDO	1.9.8	https://code.mpimet.mpg.de/attachments/download/20826/cdo-1.9.8.tar.gz
GNU	9.3.0	https://ftp.gnu.org/gnu/gcc/gcc-9.3.0/
Open MPI	4.0.3	https://www.open-mpi.org/software/ompi/v4.0/
HDF5	1.8.12-11	Provided by the Huawei Yum source
GRAB_API	1.12.3-5	Provided by the Huawei Yum source
NetCDF	4.3.3.1-5	Provided by the Huawei Yum source

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: CDO 1.9.8 Porting Guide (CentOS 7.6)