Compilation and Installation

Procedure

1. Use PuTTY to log in to the server as the root user.
2. Go to the main program installation directory.

   cd /path/to/kraken2

3. Decompress the installation package.

   unzip kraken2-master.zip

4. Modify the source code.

   vi src/Makefile

   Add -march=armv8-a -fsigned-char:

   

   vi src/hyperloglogpuls.cc

   Modify lines 46 to 50 as follows:

   #ifdef WIN32
   #include <intrin.h>
   #define __builtin_clz( x ) _lzcnt( x )
   #define __builtin_clzl( x ) _lzcnt64( x )
   #elif defined(__aarch64__)
   //  Suggestion:  Add code that adapts to the Kunpeng platdorm.
   #endif

   

5. Perform the compilation and installation.

   sh install_kraken2.sh /path/to/kraken2