Suppressing roughness of virtual times in parallel discrete-event simulations (2008)
G. Korniss, M. A. Novotny, H. Guclu, Z. Toroczkai, P. A. Rikvold
In a parallel discrete-event simulation (PDES) scheme, tasks are distributed among processing elements (PEs) whose progress is controlled by a synchronization scheme.For lattice systems with...
Hierarchical, Regular Small-World Networks (2007)
Boettcher, S., Goncalves, B., Guclu, H.
Two new classes of networks are introduced that resemble small-world properties. These networks are recursively constructed but retain a fixed, regular degree. They consist of a one-dimensional...
Going through Rough Times: from Non-Equilibrium Surface Growth to Algorithmic Scalability (2007)
G. Korniss, M. A. Novotny, P. A. Rikvold, H. Guclu, Z. Toroczkai
Efficient and faithful parallel simulation of large asynchronous systems is a challenging computational problem. It requires using the concept of local simulated times and a synchronization scheme....
Proximity Networks and Epidemics (2007)
Disease spread in most biological populations requires the proximity of agents. In populations where the individuals have spatial mobility, the contact graph is generated by the "collision dynamics"...
Extreme fluctuations in noisy task-completion landscapes on scale-free networks (2007)
Guclu, H., Korniss, G., Toroczkai, Z.
We study the statistics and scaling of extreme fluctuations in noisy task-completion landscapes, such as those emerging in synchronized distributed-computing networks, or generic causally-constrained...
Synchronization in Small-World-Connected Computer Networks (2006)
In this thesis we study synchronization phenomena in natural and artificial coupled multi-component systems, applicable to the scalability of parallel discrete-event simulation for systems with...
Synchronization Landscapes in Small-World-Connected Computer Networks (2006)
Guclu, H., Korniss, G., Novotny, M. A., Toroczkai, Z., Racz, Z.
Motivated by a synchronization problem in distributed computing we studied a simple growth model on regular and small-world networks, embedded in one and two-dimensions. We find that the...
Extreme Fluctuations in Small-Worlds with Relaxational Dynamics (2003)
We study the distribution and scaling of the extreme height fluctuations for Edwards-Wilkinson-type relaxation on small-world substrates. When random links are added to a one-dimensional lattice, the...
Virtual Time Horizon Control via Communication Network Design (2003)
Toroczkai, Z., Korniss, G., Novotny, M. A., Guclu, H.
We consider massively parallel discrete event simulations where the communication topology among the processing elements is a complex graph. In the case of regular topologies we review recent results...
Suppressing Roughness of Virtual Times in Parallel Discrete-Event Simulations (2003)
Korniss, G., Novotny, M. A., Guclu, H., Toroczkai, Z., Rikvold, P. A.
In a parallel discrete-event simulation (PDES) scheme, tasks are distributed among processing elements (PEs), whose progress is controlled by a synchronization scheme. For lattice systems with...
Statistical Properties of the Simulated Time Horizon (2002)
G. Korniss, M. A. Novotny, A. K. Kolakowska, H. Guclu
We investigate the universal characteristics of the simulated time horizon of the basic conservative parallel algorithm when implemented on regular lattices. This technique [1, 2] is generically...
Going through Rough Times: from Non-Equilibrium Surface Growth to Algorithmic Scalability (2001)
Korniss, G., Novotny, M. A., Rikvold, P. A., Guclu, H., Toroczkai, Z.
Efficient and faithful parallel simulation of large asynchronous systems is a challenging computational problem. It requires using the concept of local simulated times and a synchronization scheme....