Review of grid computing B. Ramamurthy

Beginnings of The Grid Beginnings of the grid in Search for Extra Terrestrial Intelligence (seti@home project) http://planetary.org/html/UPDATES/seti/index.html The Wow signal http://planetary.org/html/UPDATES/seti/SETI@home/wowsignal.html B. Ramamurthy 4/25/2019

IT Issues Modernizing legacy systems Web-enabling business services Automating business processes Integration within organization Data and application integration Collaboration with outside organizations Security, accountability, availability, reliability, … B. Ramamurthy 4/25/2019

Grid Organizations Global Grid Forum (GGF): The Globus Alliance: www.globalgridforum.org a community-initiated forum of thousands of individuals from industry and research leading the global standardization effort for grid computing.  The Globus Alliance: www.globus.org conducts research and development to create fundamental technologies behind the "Grid," which lets people share computing power, databases, and other on-line tools securely across corporate, institutional, and geographic boundaries without sacrificing local autonomy.  Enterprise Grid Alliance (EGA): http://www.gridalliance.org/en/index.asp EGA working groups have been proposed to address: (1) Reference model; (2) Component provisioning; (3) Data provisioning; (4) Utility accounting (5) Grid security. GGF + EGA  OGF Open Science Grid (OSG): ? B. Ramamurthy 4/25/2019

Grid Technology Emerging enabling technology. Natural evolution of distributed systems and the Internet. Middleware supporting network of systems to facilitate sharing, standardization and openness. Infrastructure and application model dealing with sharing of compute cycles, data, storage and other resources. Promoted by NSF through its Network Middleware Initiative (NMI). Publicized by prominent industries as on-demand computing, utility computing, etc. Move towards delivering “computing” to masses similar to other utilities (electricity and voice communication). B. Ramamurthy 4/25/2019

Types of Grid Batch-oriented High performance applications High Throughput applications Example: Condor Service-Oriented View all the resources and functions as services. Build application models around services. Anatomy of the grid Physiology of the grid It is this genre of grid that will move the grid technology towards business applications. Example: Globus CSE installation of GT3 B. Ramamurthy 4/25/2019

Service-oriented Standards Open Grid Services Architecture (OGSA) Open Grid Services Infrastructure (OGSI) Globus Toolkit (GT3) is a reference implementation In GT4, OGSI has been replaced by WSRF (Web services resource framework) B. Ramamurthy 4/25/2019

OGSA, OGSI and WS From tutorial: Satomayor’s GT3 Tutorial http://www.casa-sotomayor.net/gt3-tutorial-working/ B. Ramamurthy 4/25/2019

Features of Grid Service Logger object; Levels of logging: Info, .. Warn, Error, Fatal Filtering and redirecting to file, console Provides Standard security Provides notification of events … Stores service properties and States; for discovery, monitoring, negotiations, etc. Services with ability to migrate Permanent services such as naming service that get activated and terminated with the container B. Ramamurthy 4/25/2019

Application: Tax Return Filer Registry IRSService HandleMap IRSServcie Factory IRS TAX Filer Hosting Environment EMPService EMPServcie EMPLOYEMENT PerService PERServcie PERSONAl BNKService BNKServcie BANK Hosting TAX client Application: Tax Return Filer Concepts illustrated: Virtual organization (VO) called IRS/Tax Filer that brings together virtualized capabilities of physical organizations of banking, personal profiles, and employment. Grid service handle (GSH) and Grid service reference (GSR), registry and handlemap, discovery of services, index services, application of notification, logging. High trust computing and social imperative of grid. B. Ramamurthy 4/25/2019

Questions to CK? B. Ramamurthy 4/25/2019