DS-RT '07 Proceedings of the 11th IEEE International Symposium on Distributed Simulation and Real-Time Applications
Proceedings of the 22nd Workshop on Principles of Advanced and Distributed Simulation
PADS '09 Proceedings of the 2009 ACM/IEEE/SCS 23rd Workshop on Principles of Advanced and Distributed Simulation
Autonomic Log/Restore for Advanced Optimistic Simulation Systems
MASCOTS '10 Proceedings of the 2010 IEEE International Symposium on Modeling, Analysis and Simulation of Computer and Telecommunication Systems
A low-overhead constant-time LTF scheduler for optimistic simulation systems
ISCC '10 Proceedings of the The IEEE symposium on Computers and Communications
Consistent and efficient output-streams management in optimistic simulation platforms
Proceedings of the 2013 ACM SIGSIM conference on Principles of advanced discrete simulation
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In this article we overview the ROme OpTimistic Simulator (ROOT-Sim), an open source C/MPI-based simulation package targeted at POSIX systems, which implements a general-purpose parallel/distributed simulation environment relying on the optimistic (i.e., rollback based) synchronization paradigm. It offers a very simple programming model based on the classical notion of simulation-event handlers, to be implemented according to the ANSI-C standard, and transparently supports all the services required to parallelize the execution. It also offers a set of optimized protocols (e.g. CPU scheduling and state log/restore protocols) aimed at minimizing the run-time overhead of the platform, thus allowing for high performance and scalability. Here we overview the core internal mechanisms provided by ROOT-Sim, together with the offered APIs and the programming model that is expected to be agreed in order to produce simulation software that can be transparently run, in a concurrent fashion, on top of the ROOT-Sim layer.