final exercise group 9 daniel tiggemann carlos borrego shiv kaushal luigi dini oisin curran eleana...
Post on 18-Dec-2015
213 Views
Preview:
TRANSCRIPT
Final Exercise
Group 9
Daniel TiggemannCarlos BorregoShiv Kaushal
Luigi DiniOisin Curran
Eleana Asimakopoulou
The 3rd International Summer School on Grid Computing
Vico Equense 22 July 2005
Earth Observation
y=f(x1,x2,x3,...,x1
1)
Parameters estimation
Inversion Algorithm-2C
• LUT (look-up table) using RRMSE (relative mean square error)
+55+36 0 -36 -55
+55+36 0 -36 -55
5
1
62
1
2
5
1
62
1
2
),(
j imeas
j i
estmeas
ij
(j,i)ρ (j,i)ρ
RRMSE
(Privette, 1994)
Vegetation
Parameters Estimate
The Current Approach
Large demandfor informationfrom other bodies
Not enoughstorage
Too muchinformation
Not enoughtime
Need help
Earth observation centre Space observation centre
Nocommunication
Need help
Many imagesto process
Civil Protection
Need information
Need forimage
No realtime image
Parameter Combination
Parameter Combination
Parameter Combination (1-n)
database
Serial Computing Serial Computing
Image
Abstraction of the problem:
The Proposed Solution
How to use grid to solve our problem:
grid
Site
CE SE
Parameter Combination
Parameter Combination
Parameter Combination (1-n)
Info
Site
CE SE Info
Site
CE SE Info
Events db
Vo
• Not necessary to define a Web-Service architecture since other technologies provide all our needs• Condor – meant just for computing. No solution for Storage• Ogsa-dai – Our atomic instance is a file. Too much overhead. Relational DBMS not needed• Globus would be also useful but we need more functionallity
What g-lite is providing us:
Job management ServicesWorkload ManagementComputing ElementLogging and Bookkeeping
Data management Services
File and Replica catalogFile Transfer and Placement ServicesgLite I/O
Information ServicesR-GMAService Discovery
Security
Grid AccessService
API
Access Services
JobProvenance
Job Management Services
ComputingElement
WorkloadManagement
PackageManager
MetadataCatalog
Data Services
StorageElement
DataManagement
File & ReplicaCatalog
Authorization
Security Services
Authentication
Auditing
Information &Monitoring
Information & Monitoring Services
Application
Monitoring
Site Proxy
Accounting
gLite
The Progressive Exercise“Search for Knowledge”
• Three pillars found (Gilda, Globus & Fab Gagliardi)• Based on the provided started points• Reading off co-ordinates from output EPS files• Adjusting arguments to the program to produce next EPS file
The Progressive Exercise
An animated version can be found at: http://tinyurl.com/9s689
Progress of discovery and… if regaining the task:
• Rewrite Scanner client - it was not producing results even when used at points where there was a pillar
• Automate using Scanner’s program output as Regular program’s input:
•less time at the command line•simply starting the process running and coming back later to review a bunch of graphs in the EPS files
•Investigate using UNICORE to look at the surface
• Try the surface provided by the UNICORE system. Especially since it was not limited to 20 results per query
Team Contribution
● Project coordinator● Eleana Asimakopoulou
● gLite experts ● Daniel Tiggemann, Carlos Borrego
● Master of Pillars!● Shiv Kaushal
● Description of “real-world” reseach problem
● Luigi Dini● This’n’that
● Oisin Curran
Feedback on the School
● We missed more security talks!● Practical exercise was a bit chaotic!● Talks get too much into the detail and
less general information● Good social networking!● Good logistical organisation (...excellent
food!)
Grazie!
top related