Mobility aspects in remote instrumentation

Damian KaliszanNorbert Meyer, Marcin Lawenda, Dominik Stokłosa,

Marcin Okoń, Tomasz Rajtar

Poznań Supercomputing and Networking Center, Poland

New Delhi, December 15th, 2006

Agenda

• Mobile grid features

• User & instrumentation requirements

• RINGrid project overview, current status and identified instrumentation

• Prototype & requirements verification

• Network infrastructure

• Future possible areas of cooperation with EU-Indian partners

Mobility in grid

• “Anytime, anywhere” access to resources available in the grid

• Mobile Grid is a platform that should address mobility issues:

Mobile user Fixed grid resource

Fixed user Mobile grid resource

• Only remote access to rare and high-value instrumentation considered

General architecture

• Thin client

• Java & web browser required only

• Scenarios submitted using SSA application

• All computations on the „server” side – transparently for user

The Virtual Laboratory Environment Grid Environment

WorkgroupEnvironment

Laboratoryand User

Management

DataPresentation

ScenariosManagement

ModuleAccessLayer

GridLayer

AuthorizationCenter

GlobalScheduler

DataTransportation

Grid Gateway

DataManagement

System

MonitoringLayer

LocalScheduler

MonitoringSystem

UserAccounting

Globus

GRMS

GridFTP

GridInformation

Service

Resources Layer

GridApplications

VNC Server /Manager

Monitoringand

Discovery

Mobility & interactivity

• Thin client

• Java & web browser required only

• Scenarios submitted using SSA application

• All computations on the “server” side

• Data stored in Digital Library (data sharing)

• Support for interactive tasks

• Separate secure VNC (Virtual Network Computing) session manager for every application serving instrument

• User session sustainability

• Compression of the VNC session images for low quality connections

Security

Implemented solutions

• Web site access through HTTPS protocol

• WS based security through encoding SOAP (Simple Object Access Protocol) messages

• User certificates and proxy authentication policy

• Existing policies

o DMS (Data Management system) policy for access to data repository and digital library

o GAS (Grid authorization service) with built–in RAD (Resource Access Decision) – authorization security model

RAD example policy: getAuthorizationDecision (User, Resource, Submit job)

Scenario submission application

VLAB version EXPReS project example

http://www.expres-eu.orghttp://www.expres-eu.org

http://vlab.psnc.plhttp://vlab.psnc.pl

EXPReS

VLBI is a technique, in which physically independent and widely separated radio telescopes observe the same region of sky simultaneously, in order to generate very high-resolution continuum and spectral-line images of cosmic radio sources

• Telescopes are usually separated by thousands of kilometres

• Data from each telescope are digitally sampled and stored locally, using high-capacity magnetic tape systems and magnetic disk-array systems

• Data are sent and correlated at the central point (JIVE – Joint Institute for VLBI in Europe)

• The total flow of data into the central processor is approximately 10-100 Terabytes per single observation, after processing this is reduced to 10-100 Gbytes

e-VLBIe-VLBIpilotspilots

Current status of the e-VLBI Proof-of-Concept Telescope Network connections. Five telescopes are connected to their NREN, GEANT & ultimately JIVE at 1 Gbps (Jodrell Bank & Cambridge – UK; Westerbork –NL; Torun – PL; Onsala – SE). Arecibo (USA) is connected at 155 Mbps.

• Incorporate scientific instruments to become a part of the Grid

• Make middleware and underlying technologies transparent for users

• Avoid losing sessions while moving around e.g. start an experiment on a workstation at work and finish it on a laptop at home

• Low computational requirements on the user side – whole computations on the “server“ side

• … And others discovered in the nearest future

• Most of these aspects regarding networking and grid have to be studied - one of the aims of the RINGrid project

User & instruments requirements

RINGrid - overview

• RINGrid stands for Remote Instrumentation in Next-generation Grids

• Call: FP6-2005-Infrastructures-7

• Specific Support Action

• Contract no. 031891

• Duration: 18 months, from October 2006 – March 2008

RINGrid

Objectives:• Identification of instruments and user communities, definition of

requirements

• Synergy between remote instrumentation and next-generation high-speed communications networks and grid infrastructures

• Trend analysis and recommendations for designing next-generation remote instrumentation services

• Promoting egalitarian access to European e-Infrastructure opportunities

• Dissemination of project results to scientific and business groups of users

• Collaboration with other projects e.g. GridCC, EXPReS, int.eu.grid and groups e.g. e-IRG

Countries targeted

The RINGrid project aims at enhancing scientific cooperation with:

• Other EU member states,

• EU candidate countries,

• Countries in Latin America

Mexico

Brazil

Chile

India in the future?

Poland, Austria, Italy, Romania, Bulgaria, UK

Division of work – current status

WP1 - Project management

WP2 - Identification of instruments and user communities, definition of requirements – results: end of Dec 2006

WP3 - Evaluation and requirements for infrastructures

WP4 - Future emerging trends and recommendations

WP5 - Dissemination, standardisation and cooperation with other projects

WP6 - Prototyping and verification

• Preliminary identified instruments from different scientific domains

• Europe: bioorganic chemistry, radio astronomy, spectroscopy, satellite communication, telecommunication, high-voltage engineering, environment quality assessment and pollution control

• Latin America: material science, laser scan microscopy, diffractometer, food processingo Poland

Identified infrastructure 1/2

Scientific field: Biooganic Chemistry

Equipment Varian UNITY 300MHz NMR spectrometer

BRUKER AVANCE 600MHz NMR spectrometer

Scientific field: Radio Astronomy

Equipment 32m Radio Telescope in Piwnice, Poland

o Brazil

Identified infrastructure 2/2

Scientific field: Material Science at LNLS www.lnls.br

Equipment

Synchrotron Light Source  – 11 beam lines

JEOL High Resolution Transmission Electron   Microscope (HR-EM), model JEM 3010 URP

JEOL Field Emission Scanning Electron Microscope (FEG-SEM), model JSM-6330F

JEOL Low Vacuum Scanning Electron Microscope (LV-SEM), model JSM-5900LV

Scientific field:Optical Astronomy at LNA www.soartelescope.org

Equipment4.1 m optical telescope at Southern Astrophysical Research Telescope  (SOAR), Cerro Pachón, Chile 

Full list available on the RINGrid project web site

RINGrid – network infrastructure

• 155 Mbps backbone ring (BR, AR, CL, PA, MX) • Spur links from 10 to 45 Mbps to other

countries• 622 Mbps link from Brazil to GÉANT in Madrid

Topology of GEANT2Topology of RedCLARA

Verification & prototype environments

Testbeds:• PSNC Virtual Laboratory (http://vlab.psnc.pl/)• GridCC (www.gridcc.org)• CLARA (www.redclara.net)Objectives:

• Specification and working out of ‘use cases’, which match the profile of requirements set by the previous work packages

• Preparation of prototype installations

• Execution of tests and collection of remarks concerning results achieved and user experiences, documenting all relevant information in a formal report

• Analysis of the verification process results and production of a coherent list of recommendations for instrumentation grid infrastructures

Future collaboration with EU-Indian partners

• EU-India high-speed communication links for students and researchers opened (October 2006),

• State-of–the-art on high-speed networks and grid infrastructure as a base for possible future collaboration,

• Rediscovering new instrumentation that could be incorporated to the grid environment

• eScience & Digital libraries aspects

• Establishing contacts between scientists from EU and India – searching for new user groups and capability of extending RINGrid community

• Cooperation with ERNET

• Worldwide approach – large number of facilities (instrumentations)

Thank you for your attention!

www.ringrid.euwww.ringrid.eu

www.www.expres-expres-eueu.org.org

damian@man.poznan.pl

PSNC