A portable mechanism for vectorizing compiled event-driven simulation

This paper presents a portable mechanism for vectorization of a hardware description language (HDL) in a multiprocessing environment. Each of the functional modules in the environment is atomized and put in a centralized event queue using the dynamic event scheduling mechanism. However, during the execution phase, the set of events in a particular time instant form, what we call a `rope´ of independent events. Each of the events in a rope is simulated through the creation of an independent thread in the environment. In a multiprocessing operating system (OS) this means, depending on the availability of the processor time-slice, an independent thread created from the same process will run in parallel on different processors without any special input from the program thus ensuring a platform independent portable mechanism. As there is no direct interaction between the program and the kernel of the OS, it is possible to port the code even on a uni-processor machine without any change in the code