21.0.0

**Table 1** Features and documents related to 21.0.0
Feature	Document	Description
HMPP	HMPP User Guide	Added some image library interface functions.
Kunpeng Math Library	Kunpeng Math Library Developer Guide Kunpeng Math Library Migration Guide	Added the implementation functions of the KML_MATH and KML_LAPACK libraries. Added the interface functions of the KML_BLAS library. Added content about the migration of the MATH and LAPACK libraries.