CALL FOR PARTICIPATION __________________________________________________ SECOND WORKSHOP ON RANDOMIZED PARALLEL COMPUTING __________________________________________________ Held in conjunction with IPPS '97 University of Geneva Geneva, Switzerland April 1, Tuesday 1997 sponsored by the IEEE Computer Society Technical Committee on Parallel Processing TECHNICAL PROGRAM _________________ ******************************************************************** * 9:10 - 10:10 INVITED TALK: * * Randomised Parallel Almost-Uniform Generation, * * PAUL SPIRAKIS, Univ. of Patras. * ******************************************************************** 10:10 - 10:40 BREAK 10:40 - 11:10 Parallel Algorithms for Maximal Linear Forests, R. Uehara (Tokyo Woman's Christian University) and Z. Chen (UC Berkeley). 11:10 - 11:40 Faster Finding of Simple Cycles in Planar Graphs on a randomized EREW PRAM, C. Dorgerloh and J. Wirtgen, Institut fur Informatik V, Universitat Bonn. 11:40 - 13:30 LUNCH BREAK ******************************************************************** *13:30 - 14:30 INVITED TALK: * * Expected Behavior Analysis of Long Packet Routing * * in Interconnection Networks * * LUDEK KUCERA, Department of Applied Mathematics, * * Charles University, Prague and ENS, LYON. * ******************************************************************** 14:30 - 15:00 BREAK 15:00 - 15:30 A randomised parallel approach to synthesis based constraint satisfaction, S. Nagarajan and S. D. Goodwin, Univ. of Regina. 15:30 - 16:00 Improved Static Multiprocessor Scheduling using Cyclic Task Graphs: A Genetic Approach, F.E. Sandnes and G.M. Megson, The Univ. of Reading. 16:00 - Open discussion ********************************************************************* Program Committee: Susanne E. Hambrusch, Purdue U Frank Hsu, Fordham U Oscar Ibarra, U of California, Santa Barbara Joseph Ja Ja, U of Maryland Danny Krizanc, Carleton U Tom Leighton, MIT Bruce Maggs, CMU Rajeev Motwani, Stanford U Michael Palis, Rutgers U Greg Plaxton, UT Austin Sanguthevar Rajasekaran, U Florida (Chair) Satish Rao, NEC John Reif, Duke U Sartaj Sahni, U Florida Paul Spirakis, U Patras Jeff Vitter, Duke U ********************************************************************** Abstract for Paul Spirakis's talk: ---------------------------------- We show here how to generate combinatorial objects almost uniformly efficiently in parallel via a randomised technique. The technique uses a rapidly mixing Markov Chain which converges to the uniform distribution and shows how to produce a special quadratic system which converges to the same distribution in a logarithmic number of population generations. We indicate applications to matchings and the permanent approximation of dense graphs. This is joint work with J. Diaz, M. Serna, S. Nikoletseas and P. Psycharis. -------------------------------------------------------------- Abstract for Ludek Kucera's talk: --------------------------------- The expected behavior of several types of routing algorithms is studied under an assumption that the packet length is comparable or larger than node-to-node distancies in the network and assuming a permanent routing process with random origins, destinations and starting times of packets. A simple formula is given for the average latency of oblivious algorithms, valid also for the case of variable packet length. A fenomenon that might cause a saturation of network using a simple deflection algorithm is described. It is shown how its apperance is connected to connectivity properties of the network and its failure-tolerance. Methods preventing this type of network saturation are studied. ********************************************************************