High-Performance Embedded Computing

5.4 Multiprocessor Architectures 279

operating system provides the abstraction necessary for multiprocessing; each

simulator has its own state, just as each PE in the implementation has its own

state. The simulator uses the host computer’s communication mechanisms—

semaphores, shared memory, and so on—to manage the communication

between the component simulators.

Consider the simulation of a write from a processing element to a memory

element (ME). The PE and ME are each component simulators that run as pro-

cesses on the host CPU. The write operation requires a message from the PE

simulator to the ME simulator. The data in this message includes the write ...