High energy & nuclear physics

“Coordinated resource sharing and problem solving in dynamic, multi-institutional virtual organisations” (I. Foster)

Information grid

• Information grid

• Large access to distributed data (the Web)

• Data grid

• Management and processing of very large distributed data sets – Data intensive computing

• Computing grid

• Meta computer

Grids date back “only” 1996

• Grids date back “only” 1996

• Parallelism is older! (first classification in 1972)

• Motivations:

• need more computing power (weather forecast, atomic simulation, genomics…)
• need more storage capacity (Petabytes and more)
• in a word: improve performance! 3 ways ...
• Work harder --> Use faster hardware
• Work smarter --> Optimize algorithms
• Get help --> Use more computers !