0
Hector Quintero Casanova       University of EdinburghDistributed Scientific Computing in              Practice
Distributed Scientific Computing?    Also known as e-Science.    According to Dr. John Taylor, 2 dimensions:      –   Gl...
Current state of affairs    Shift to data: find hypothesis for a pattern       –   Cosmology: dark flow in WMAP data.   ...
Current state of affairs    Differences in emphasis reflect on tools:      –   Astronomy: analysis of data            •  ...
Challenges: semantics    Transition from annotation to semantics:      –   Biology very advanced. E.g: Gene ontology     ...
Challenges: politics    Politics does affect scientific decisions:       –   Astronomy: TAP protocol             •   Comp...
Challenges: collaboration    Focus still on sharing and not on collaborating:      –   Astronomy: uniform access to data ...
EDIKT    First, generic solutions that found applications      –   Holistic approach to e-science problems.            • ...
Future    E-science just started: multi-disciplinary science      –   New challenges cover wider areas of knowledge.     ...
¿?
Upcoming SlideShare
Loading in...5
×

E-Science: distributed scientific computing in practice.

235

Published on

Analysis of e-science's aims, its applications, challenges and future.

0 Comments
0 Likes
Statistics
Notes
  • Be the first to comment

  • Be the first to like this

No Downloads
Views
Total Views
235
On Slideshare
0
From Embeds
0
Number of Embeds
1
Actions
Shares
0
Downloads
3
Comments
0
Likes
0
Embeds 0
No embeds

No notes for slide

Transcript of "E-Science: distributed scientific computing in practice."

  1. 1. Hector Quintero Casanova University of EdinburghDistributed Scientific Computing in Practice
  2. 2. Distributed Scientific Computing? Also known as e-Science. According to Dr. John Taylor, 2 dimensions: – Global collaboration effort • Cross-organisational effort demanded. • Technical and formal differences are likely. – Infrastructure that will enable it • Middleware hides differences and complexities • Aims at seamless instant access to resources • Much like a utility. Hence, the grid.
  3. 3. Current state of affairs Shift to data: find hypothesis for a pattern – Cosmology: dark flow in WMAP data. Emphasis depends on area of application: – Astronomy: uniform data access • Data and its correct annotation. E.g: VO – Particle Physics: universal job submission • Processing of jobs. E.g: JDL – Biology: workflow. • Research activity model-based. E.g: Myexperiment
  4. 4. Current state of affairs Differences in emphasis reflect on tools: – Astronomy: analysis of data • Multiple approaches ⇒ extensive user interaction. – Biology: workflow design • Decide order mainly ⇒ some user interaction. – Particle Physics: job submission • Define job and submit ⇒ minimal user interaction Scientific research is also conducted in arts: – E-science also applied to them • E-Dance project: annotation of coreography videos
  5. 5. Challenges: semantics Transition from annotation to semantics: – Biology very advanced. E.g: Gene ontology • Describe experimental models. – In Astronomy not so easy despite rich meta-data • Problems such as description of units. Semantics leading to over-standardisation? – Not yet since scientists still play a big role. – Common model of knowledge could limit creativity. • Thinking processes shaped by common framework. Balance between standardisation & flexibility
  6. 6. Challenges: politics Politics does affect scientific decisions: – Astronomy: TAP protocol • Compromise between US and UK. • Each side implements the options it wants. – In effect 2 flavours of TAP available: • Organisations: which TAP to implement? • Undermines standard access to data. – Similar situation with CORBA ended in failure. Solution: avoid compromises. Hold things up? Balance: standards robustness vs. advancement
  7. 7. Challenges: collaboration Focus still on sharing and not on collaborating: – Astronomy: uniform access to data • Data can be shared. • No platform to exchange views on that data. – Exception: myexperiment. Caters only biologists. Also, targeted collaboration during development. – Developers should actively engage with scientists. – Example: evolution of EDIKT project.
  8. 8. EDIKT First, generic solutions that found applications – Holistic approach to e-science problems. • General solutions: BinX and Eldas. • Specific applications: AstroBinX and BioDAS. Change: active engagement with would-be users. – Regular talks involving developers & researchers – Embedded developer: specific to research activity. Example: ECDF portal. – Draws on experience with RAPID. – Fidelity to scientists reqs: command-line look.
  9. 9. Future E-science just started: multi-disciplinary science – New challenges cover wider areas of knowledge. – Example: effects of climate change in migration • Climate change complex already. • Couple that with sociology and geography. Nice! Will push for more standards and collaboration – Semantics would ease establishment of correlations. – Example: social unrest and increase temperature. E-science begging for funding? Hope not.
  10. 10. ¿?
  1. A particular slide catching your eye?

    Clipping is a handy way to collect important slides you want to go back to later.

×