2. Job placement and migration

2.1 Local scheduling and global scheduling

In distributed systems, there are two types of scheduling: local and global.

Local scheduling consists of allocating a processor to the tasks assigned to that processor, taking into account their urgency and importance.

Global scheduling, on the other hand, attempts to guarantee task constraints by exploiting the processing capacities of the different processors making up the distributed system in question (possibly by migrating tasks).

A local scheduler aims to answer the question "when should a task be executed on the local processor, so as to respect the constraints imposed on that task? A global scheduler, on the other hand, seeks to answer the question "which site...