gtpm3m08 | Multi-Processor Interconnect Facility Reference |
The High Performance Option feature allows a TPF loosely coupled complex, with up to eight copies of TPF, to communicate through a common database.
To meet the growing customer need for increased processing power, the Multi-Processor Interconnect Facility (MPIF) was introduced. MPIF supports multiple TPF complexes that communicate with each other. A TPF complex can consist of a single loosely coupled complex or a central processing complex (CPC) running TPF. Using MPIF, these complexes are be able to distribute processing across the TPF systems.
MPIF, pronounced MIP-if provides an interface that allows TPF systems to perform cooperative processing with other TPF systems. Using MPIF, one TPF system can request a system service that is received, processed, and returned by another TPF system. The requesting system need not be aware that the receiving system can be in a different processor, or that the receiving processor can have a different architecture. MPIF uses channel-to-channel (CTC) support to communicate in a single TPF loosely coupled complex, or between multiple TPF complexes.
Figure 1 shows a typical MPIF complex using the IBM* 3088 Multisystem Channel Communication Unit (MCCU).
Figure 1. A MPIF Complex Using a 3088
Figure 2 shows a typical MPIF complex, using the IBM Enterprise System Architecture* (ESCON*) Channel-to-Channel (CTC).
Figure 2. A MPIF Complex Using an ESCON CTC
If you are using ESCON CTC, see ESA/390 ESCON Channel-to-Channel Adapter for more information.
See the appropriate Enterprise System/9000 Functional Characteristics and Configuration Guide for more information about your particular ES/9000 processor model.