The document discusses how grid computing technologies were accidentally adopted by researchers seeking high performance computing resources. It explores how grid computing emerged through a layered architecture and open standards that allowed for innovation, as well as through defining users and simplicity. The document also examines different approaches to using grids and building grids, and considers tradeoffs regarding user and provider difficulty across various applications and deployment models.

1. Accidentally Using Grid
Services
Charlie Catlett
CIO, Argonne National Laboratory
Senior Fellow, Computational Institute of the University of Chicago and Argonne National Laboratory
HPC2008
Cetraro, Italy
July 2, 2008
Argonne National Laboratory is managed by UChicago Argonne, LLC for the U.S. Department of Energy

2. To Rule the Cloud
“Captain, he is intelligent, but not
experienced. His pattern indicates
two dimensional thinking.”
“Helm, Z minus 10,000 meters;
stand by photon torpedoes.”
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

3. Perspectives from 2001
Well... sort of...
“Objects are
further away than
(GGF-1, Amsterdam)
they appear” Any of us... A reasonably well-respected institution...
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

4. Accidentally Using Grids
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

5. How did this
happen?
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

6. Several Key Ideas
• Layered Architecture
• (you can innovate underneath)
• Open Standards - Generative approach
• (you can innovate on top)
• Clear definition of “user”
• Simplicity
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

7. Layers: “Leave the
Driving to Us”
App
App Libraries
App
TCP TCP
TCP/IP
IP IP
media
media media
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

8. Open Standards;
Simplicity (or not)
App Mash-Ups
Directory Svcs
OGSA Web Services S3
Co-Scheduling OpenID
HTTP
Remote Job Sub OAUTH
Internet
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

9. Source: Kathy
catlett@an.gov Sierra July 2008 HPC2008 - Cetraro, Italy

10. Gannon on Clouds
EC2
Source: Dennis Gannon
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

11. Using Grids; Building
Grids
App
User Difficulty
Libraries
Build (and
Manage) GRIDS
Difficulty
Resources
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

12. Approaches, Trade-Offs
User Pain
HPC App
Workflow
Tight-Coupling
Heterogeneous
HTC
Clouds
Homogeneous
or
Single-System
Provider Pain
Single Collab Competing
catlett@an.gov Provider Providers Providers July 2008 HPC2008 - Cetraro, Italy

13. Other dimensions...
Providing just run-time vs. Shell, Code
Development
Target audience - end user or repackager
(portals and science gateways... or
Smugmug, Rightscale, etc.)
How much you care about accounting,
strong auth*
catlett@an.gov July 2008 HPC2008 - Cetraro, Italy

14. User and Provider
Difficulty Ratings
Source: Kathy
catlett@an.gov Sierra July 2008 HPC2008 - Cetraro, Italy