[Colloquium] Today: Sotomayor/MS Presentation/Jan. 3, 2007

[Margaret Jaffey]

This is a reminder about Borja Sotomayor's MS Presentation this  
afternoon.

------------
Date:  Wednesday, January 3, 2007

Time:  1:00 p.m.

Place:  Ryerson 251

M.S. Candidate:  Borja Sotomayor Basilio

M.S. Paper Title:  A Resource Management Model for VM-Based Virtual  
Workspaces

Abstract:
Virtual workspaces provide an abstraction for dynamically deployable  
execution environments on a Grid. For this abstraction to be  
effective, it must be possible to provide on-demand software  
environments and enforceable fine--grained resource allocations for  
these workspaces. Virtual machines are a promising vehicle to realize  
the virtual workspace abstraction, as they allow us to instantiate a  
precisely defined virtual resource, configured with desired software  
configuration and hardware properties, on a set of physical resources.

In this paper, we describe a model of virtual machine provisioning in  
a Grid environment that allows us to define such virtual resources  
and instantiate them on a physical Grid infrastructure. Our model  
focuses, firstly, on providing users with an accurate representation  
of virtual resources. To accomplish this, the overhead resulting from  
instantiating and managing virtual resources is scheduled at the same  
level as virtual resources, instead of being deducted from a user's  
resource allocation. Secondly, our model also focuses on efficiently  
managing virtual resources by reducing the amount of overhead.

We argue that this model, compared to resource management models that  
rely on the job abstraction for remote execution, enables resource  
providers to accurately provision resources to users, while using  
their physical resources efficiently. We show experimental results  
that demonstrate the benefits of this model both from the resource  
provider's and the user's perspective, in two common resource  
management scenarios for virtual workspaces: advance reservations and  
batch--style submissions.

Advisor:  Prof. Ian Foster

A draft copy of Borja Sotomayor's MS Paper is available in Ry 161A.

=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=
Margaret P. Jaffey                             margaret at cs.uchicago.edu
Department of Computer Science
Student Support Rep (Ry 161A)        (773) 702-6011
The University of Chicago                  http://www.cs.uchicago.edu
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=