Challenges for the parallelization of loosely timed SystemC programs

Standard-compliant parallel SystemC simulation of loosely-timed transaction level models: From baremetal to Linux-based applications support

“…The evaluation phase is usually the most compute intensive, which makes it the target of most parallelization approaches (including this work). But SystemC parallelization presents several challenges described in [4,5]. The first of them is the co-routine semantics of SystemC.…”

“…Indeed, at first sight, only processes scheduled during the same evaluation cycle are good candidates for parallel evaluation. In [5], the authors show that most of the time, less than two processes can be scheduled simultaneously in a classic TLM model. This is mostly due to the fact that, in TLM models, processes are not synchronized by a central clock like it is often the case in RTL models, reducing the probability of several processes being scheduled at the same time.…”

Standard-compliant Parallel SystemC simulation of Loosely-Timed Transaction Level Models

“…Parallelizing SystemC presents some fundamental obstacles which are further detailed in [3], [4]. Indeed, the reference SystemC implementation [5], as most Discrete Event Simulator (DES), models concurrency using the co-routine semantics implemented with cooperative multithreading on a single core.…”