Verified Environments

Table 1 lists the environments in which the HMPP has been verified. The compilers of different OSs are of the default versions.

**Table 1** Verified environments
OS	CPU Type
openEuler 20.03 LTS SP1	Huawei Kunpeng 920 processor
CentOS Linux release 7.6.1810 (AltArch)	Huawei Kunpeng 920 processor
NeoKylin Server V7.0 U6 for ARM	Huawei Kunpeng 920 processor
Uniontech OS (UOS) 20	Huawei Kunpeng 920 processor
Ubuntu 18.04	Huawei Kunpeng 920 processor
Kylin release V10	Huawei Kunpeng 920 processor

The HMPP supports only Kunpeng 920 processors and will exit abnormally for any other processors.
HMPP is a bottom-layer primitive library. The computing process involves memory read/write and allocation. You must install the OS by yourself and perform OS security hardening. Install only necessary applications or uninstall unnecessary applications that have been installed.

Note the following when using the HMPP:

HMPP version
You are advised to use the latest version of the HMPP.
OS compatibility
Check whether the OS and CPU type are listed in the Table 1 of the HMPP.
UOS 20
The AWK and XmlLint need to be installed.
1. Installing the AWK
  Most released Linux OSs come with AWK by default. Do as follows to install AWK if it is not preconfigured:
```
yum install gawk
```
2. Installing the XmlLint
  1. Obtain the XmlLint source package.
```
ftp://xmlsoft.org/libxml2/libxml2-2.8.0.tar.gz
```
  2. Decompress the source package.
```
tar -zxvf libxml2-2.8.0.tar.gz
```
  3. Configure compilation environment variables.
```
./configure --prefix=/usr/local/libxml2 --build=arm-linux
```
  4. Compile the source code and install the tool.
```
make && make install
```
  5. Copy the xmllint file to the /usr/bin directory.
```
cp libxml2-2.8.0/.libs/xmllint /usr/bin/
```

Parent topic: Using the HMPP