Motivation:
	The Rensselaer Grid
		Currently 1000 processors.
		Largest university based supercomputing system (upcoming CCNI grant)
		over 10,000 IBM BlueGENE processors
		Over 70 teraflops

	TeraGrid/ETF (www.teragrid.org)
		Initially was 4 geographically distributed sites with few users.
		Now an extensible facility with more than 150 petabytes of storage and 102 teraflops of computing capability.

	iVDGL (www.ivdgl.org)

	LCG @ CERN (www.cern.ch)
	LHC (Large Hadron Collider) Computing Project

Areas of Uncertainty:
	Application Uncertainty
		non-determinism
			changing computational/memory usage demands
			changing communication topology

	Environmental Uncertainty
		processor availability
		in grids, processors application is loaded on may not be known
		OS effects
	
	Interaction Uncertainty
		unknown how applications may perform on different architectures
			state space too large to test all parameters
		applications may compete with other concurrently running applications for resources
			communication links
			disk access
			processor use
			memory use

Autonomic Runtime Manager (ARM) for Large Scale Adaptive Distributed Applications
	Adaptive Distributed Applications
		computational complexity associated with each computational region varies in both time and space over the application's execution
	
	Brief discussion of wildfire application
	
	What is ARM?
		dynamically schedules computational units to resource units
		applications profiled for information about resources and application performance
	
	Reconfiguration
		IR - imbalance ratio
			max computation spent - min computation spent / max computation spent
			normalizes difference in computation
	
		PCL - processor computational load - data assigned to processor
		PAF - processor allocation factor - average burning cell time / burning cell time at processor
	
	
		TB - computation time of a burning cell
			equal to TB(estimated) * processes at processor (if 1, identity)
			
		ACW - application computational workload - number burning cells plus number unburnt cells
	
	
	brief results
		results 1:
		static -> natural region -> graph partitioning
		
		results 2:
		256x256: 65536 -> 512x512: 262144