INFSO-RI-508833

Enabling Grids for E-sciencE

www.eu-egee.org

User Survey Objectives and Results

F.Jacq CNRS-IN2P3EGEE Conference - Athens 21th April 2005

User Survey:Objectives and results 2

Enabling Grids for E-sciencE

INFSO-RI-508833

User Survey : Objectives

• To evaluate user satisfaction for milestone MNA4.3. This is a specific request of the reviewers.

• User Survey Content– Parameters for survey analysis : User identification, User and

application profile

– User satisfaction : Benefits in using EGEE, Quality of the grid, Quality of the user support, Quality of the documentation

• User Survey available on line : http://egee-na4.ct.infn.it/egee-survey-form/

User Survey:Objectives and results 3

Enabling Grids for E-sciencE

INFSO-RI-508833

The population of users

• What was the target ?– All users of the grid were invited to fill the user survey– E-mail to mailing list community : Biomed and Generics– We have also some reply of dteam members, infngrid (word of

mouth ! )

• Expectations of reply– Biomed Community : estimation of 35 active users– Generics Community : estimation of 40 active users

User Survey:Objectives and results 4

Enabling Grids for E-sciencE

INFSO-RI-508833

Global Results : User identification (1/2)

• 39 Replies with 33 from Biomed and Generics : Who are they ?

•NA4 application management

•NA4 user support

• Dteam members (Test team, End User Support, Site Administrator)

Response Rate of Biomed 63%

Response Rate of Generics 27%

User Survey:Objectives and results 5

Enabling Grids for E-sciencE

INFSO-RI-508833

Global Results : User identification (2/2)

• How do they use the grid ?– Writing application themselves : 94 %– Launching jobs themselves : 86 %– Using Genius : 18 % (induced by the low replies of generics

application)– They launch jobs per month :

Average : 170 Minimum : 1 Maximum : 1200 Duration of a job :

User Survey:Objectives and results 6

Enabling Grids for E-sciencE

INFSO-RI-508833

Global Results : Application Profile

• What is the specificity of their application ? :

Parallel Job

Interactivity

Resource requirement

User Survey:Objectives and results 7

Enabling Grids for E-sciencE

INFSO-RI-508833

Service Grid Satisfaction

• Global Satisfaction with use of grid

Estimated of jobs failure : 18%

 

•46%

•46%

User Survey:Objectives and results 8

Enabling Grids for E-sciencE

INFSO-RI-508833

User Support Satisfaction

•67%•62%

•72%

=> Quality Support good satisfaction for > 65 %

• Global Satisfaction of the user support

User Survey:Objectives and results 9

Enabling Grids for E-sciencE

INFSO-RI-508833

• Global Satisfaction of the documentation

Documentation Satisfaction

=> Except System manual documentation, the satisfaction is intermediate

•33% •33%

•63%

•30% •27%

User Survey:Objectives and results 10

Enabling Grids for E-sciencE

INFSO-RI-508833

Users Expectations

• Users are mainly waiting for :

User Survey:Objectives and results 11

Enabling Grids for E-sciencE

INFSO-RI-508833

Grid added value

• Is it possible to do the same work without EGEE ?

• Real Benefits of functionality with EGEE : – Job management : Resource broker, reduction of execution time for a

large number of jobs, requirements attributes– Pervasive and transparent access to large scale and distributed resources– Data management : registration, file access, virtualization of storage– Secure environment

User Survey:Objectives and results 12

Enabling Grids for E-sciencE

INFSO-RI-508833

Improvement of EGEE• Major requirements for EGEE improvement:

– Stability : Resources, nodes, RB, RM

– Job management : Collection of jobs System priority of jobs Automatic management of thousands jobs Reduction of the waiting time Capability to "chain" RBs and then suppress SPOF

– Data management : Shared file Avoid the files and space number limitations on nodes Management of Relational DataBases

– Security : Data, jobs and users, Secure access to external (meta-) databases, Fine granular security, ACLs

– MPI on more sites support for MPI-based parallel execution

– Integrated and standard debugging facilities for all commands

– Co allocation of CPUs for interactive jobs

User Survey:Objectives and results 13

Enabling Grids for E-sciencE

INFSO-RI-508833

Conclusions and Roadmap

• Conclusions– Satisfaction

Support : quite good Grid Service : intermediate satisfaction Documentation : has to be improved

– Diversity of applications => complexities, benefits and requirements are heteroclites.

• Roadmap– Improvement of the user survey– HEP community

User Survey:Objectives and results 14

Enabling Grids for E-sciencE

INFSO-RI-508833

Credits

• Marcel Soberman (JRA2) : Contribution to the conception of the user survey

• Emidio Gorgio (NA3/NA4) : Developer of the PHP form and of the database for statistics.

• All people who participated in the conception and the testing of the user survey

• All people who incited users to fill the user survey.

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Enabling Grids for E-sciencE

INFSO-RI-508833

Format User Survey : Parameters

User Survey:Objectives and results 16

Enabling Grids for E-sciencE

INFSO-RI-508833

Format User Survey : Satisfaction