1 Stellenbosch, Africa EPIKH Workshop, The EPIKH Project (Exchange Programme to advance e-Infrastructure Know-How) GRID Science Gateway Riccardo Rotondo National Institute of Nuclear Physics Africa – EPIKH Workshop Stellenbosch, South Africa

22 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Outline Computationally intensive research Grid access technologies Science Gateway The e-Collaboration environment –The old paradigm –Science Gateway architecture –The new brick approach Use Cases: –The CHAIN Science Gateway –The SPECIAL Science Gateway –The INDICATE e-Culture Science Gateway Conclusions

33 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Computationally intensive research

44 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Several scientific domain involved

55 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo GRID at world scale

66 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo But…using Grids is not straightforward Type = "Job"; JobType = "MPICH"; MPIType = "MVAPICH2_PGI706"; CpuNumber = 16; MPIGranularity = 4; Executable = "flash2"; StdOutput = "mpi.out"; StdError = "mpi.err"; InputSandbox = {"watchdog.sh","mpi.pre.sh","mpi.post.sh","flash.par","summers_den_ 1e0.rates","flash2"}; OutputSandbox = {"mpi.err","mpi.out","watchdog.out","flash_bubble.log","amr_log"}; Requirements = (other.GlueCEUniqueId == "unipa-ce- 01.pa.pi2s2.it:2119/jobmanager-lcglsf-hpc"); RetryCount = 0; $ voms-proxy-info --all subject : /C=IT/O=GILDA/OU=Robots/L=INFN Catania/CN=MrBayes/CN=proxy/CN=proxy issuer : /C=IT/O=GILDA/OU=Robots/L=INFN Catania/CN=MrBayes/CN=proxy identity : /C=IT/O=GILDA/OU=Robots/L=INFN Catania/CN=MrBayes/CN=proxy type : proxy strength : 1024 bits path : /tmp/x509up_u512 timeleft : 500:38:44 === VO gilda extension information === VO : gilda subject : /C=IT/O=GILDA/OU=Robots/L=INFN Catania/CN=MrBayes issuer : /C=IT/O=INFN/OU=Host/L=Catania/CN=voms.ct.infn.it attribute : /gilda/Role=NULL/Capability=NULL attribute : /gilda/generic-users/Role=NULL/Capability=NULL attribute : /gilda/idl/Role=NULL/Capability=NULL timeleft : 23:59:33 uri : voms.ct.infn.it:15001 $ glite-wms-job-status XTAIGAg ************************************************************* BOOKKEEPING INFORMATION: Status info for the Job : XTAIGAg Current Status: Done (Success) Logged Reason(s): - Job terminated successfully Exit code: 0 Status Reason: Job terminated successfully Destination: grid010.ct.infn.it:2119/jobmanager-lcgpbs-gilda Submitted: Tue Jun 29 15:34: CEST ************************************************************* CLI Scripts JDL echo Staging Input Data \(Courtesy of European Space Agency\); #edg-rm --vo=gilda copyFile lfn:$1.N1 file://$PWD/$1.N1; lcg-cp --vo=gilda lfn:$1.N1 file://$PWD/$1.N1; echo Staging Application; gunzip beam20.tar.gz; tar xvf beam20.tar; cd beam-2.0/bin; echo Starting Application;./pds2jpg-ASAR-run.sh $1; mv $1-b*.jpg../.. cd../.. rm -fr beam-2.0; rm -fr $PWD/$1.N1; rm -fr $PWD/beam20.tar; echo Input ENVISAT Product courtesy of European Space Agency touch ENVISAT_Product_courtesy_of_European_Space_Agency echo No Output Packaging; echo Done!; GSI

77 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Grid Interface Evolution The way users access Grid resources has continuously evolved towards simplicity and transparency: Command Line –Globus and gLite CLI –Used by the enthusiastic and early adopter scientists GUI applications –gEclipse, Grid2Win –Good to expand the communities but difficult to maintain Web Interface –GENIUS, P-GRADE –Easier for new users but monolithic Science Gateways

88 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo The GENIUS Grid Portal robot certificates on e-tokens

99 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Science Gateways A framework of tools that allows scientists to run applications with little concern for where the computation actually takes place. This is similar to cloud computing in which applications run as Web services on remote resources in a manner that is not visible to the end user. However, a science gateway is usually more than a collection of applications. Gateways often let users store, manage, catalogue, and share large data collections or rapidly evolving novel applications they cannot find anywhere else. Training and education are also a significant part of some Science Gateways

10 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Liferay ( Highly-configurable, scalable, open source portal framework; Compatible with JSR 168/286 standards and based on modern web 2.0 technologies; Liferay services planned to be used: –Portal; –CMS & WCM; –Collaboration and social software 10

11 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Grid Access enable: Portlets as bricks Portlets can interact with the Grid e-Infrastructure Different approaches are available: –Execute the Command Line behind the portal; –Using API where available: Must be in Java or other languages supported by Liferay; –Call REST services from Javascript code in the browser; Additional layers between Liferay and the Grid can be necessary for some services; Each portlet can follow its own communication method.

12 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo GRID Science Gateway Architecture 1. Log In 2. Verify ACL 4. Grid Credential Exchange 5. Grid Services 6. Results 7. Download data 3. Grid Services Request

13 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Robot Certificates in a nutshell Robot certificates have been introduced by several Certification Authorities to allow users, who are not familiar with personal certificates and do not belong to any Vos, to access and use Grids. – They are extremely useful, for instance, to automatize grid service monitoring, data processing production, distributed data collection systems, etc.; – Basically, these certificates can be used to identify a person responsible for an unattended service or process acting as client and/or server.

14 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Robot certificates & e-Token In order to strong reduce the risks to have the portal certificate compromised, the INFN CA has decided to issue these special certificates on board of Aladdin eToken PRO 32K smart cards. Each smart card can support several (up to 32) robot certificates: one for each application available on the grid portal. Our Science Gateways fully supports robot certificates !

15 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Liferay AT INFN-CT

16 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo

17 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo The CHAIN Science Gateway

18 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo The CHAIN Science Gateway

19 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo The CHAIN Science Gateway

20 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo The INDICATE e-Culture Science Gateway (1/3)

21 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo The INDICATE e-Culture Science Gateway (2/3)

22 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo The INDICATE e-Culture Science Gateway (3/3) 22

23 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Conclusions –Using different frameworks it is possible to build a Science Gateway able to interact with Grid Services; –Liferay is the most used framework and offers an easy, customizable and user friendly interface; –Thanks to robot certificates and X.509 standard the level of security is kept high and the resources safe; –The new bricks developed are being used in two projects belonging from two distinct scientific domains. Future Work: –While the role of Liferay as front-end is clear, the interactions of the tools behind are still under development; –Test the new Science Gateway in a production environment.

24 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo Questions? Thank you for your attention

25 Stellenbosch, Africa EPIKH Workshop, Riccardo Rotondo References