HPU - Hardware Processing Unit
Enhanced Definition
A Hardware Processing Unit (HPU) in the IBM mainframe context refers to a specialized processor designed to execute specific types of workloads, thereby offloading them from general-purpose processors (GPs). These units, often called **specialty engines**, are integral to the z/Architecture and are managed by z/OS to optimize performance and reduce software licensing costs.
Key Characteristics
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- Workload Specialization: HPUs are engineered to efficiently handle particular tasks, such as Java applications (
zAAP) or database-related processing (zIIP), rather than general-purpose computing.
- Workload Specialization: HPUs are engineered to efficiently handle particular tasks, such as Java applications (
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