Domain-related swaps

Unilateral swap in: If the number of a domain's address spaces that are in the multiprogramming set (MPS) is less than the number SRM has set for the swap-in target, SRM swaps in additional address spaces for that domain, if possible.
Unilateral swap out: If the number of a domain's address spaces that are in the multiprogramming set is greater than the number SRM has set for the swap-out target, SRM swaps out address spaces from that domain.
Exchange swap: All address spaces of a domain compete with one another for system resources. When an address space in the multiprogramming set has exceeded its allotted portion of resources, relative to an address space of the same domain waiting to be swapped in, SRM performs an exchange swap. That is, the address space in the multiprogramming set is swapped out and the other address space is swapped in. (The multiprogramming set consists of those address spaces that are in central storage and are eligible for access to the processor.) This competition between address spaces is described in detail in Section 2: Basic SRM parameter concepts.