액세스그리드 구축 활용 및 동향액세스그리드 구축 활용 및 동향

Jeonghoon Moonjhmoon@kisti.re.kr

2005. 4. 13(Wed)

Supercomputing Center

제 10 회 정보통신응용기술워크숍

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Access GridGoals and History

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The Access Grid

Access Grid does for people what the computational Grid does for machines

To enable groups of people to interact with Grid resources and to use the Grid technology to support group to group collaboration at a distance Distributed Lectures and seminars Remote participation in panel discussions Virtual site visits meetings Complex distributed Grid based demonstrations

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Configuration of Access Grid

Components of an AG NodeComponents of an AG Node

Digital Video

Digital Video

Digital Audio

NETWORK

MixerControl

Computer

NTSC Video

RGB Video

Analog Audio

Video Capture

Computer

DisplayComputer

AudioCapture

Computer

EchoCanceller

Ambient mic(tabletop)

Presentermic

Presentercamera

Audience camera

Stream

Type

Max. latenc

y

Max. Jitter

Min. BWMax. Loss

Multicast

Text100 ms

N/A 64 kbps 0 % No

Audio400 ms

60 ms

64 kbps 5 % Yes

Video400 ms

30 ms

256 kbps x 4 = 1 Mbps

25 % YesRequires Multicast

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Advanced Node – Tiled Display, Multiple Video Streams, Localized Audio

Room Node – Shared Display, Multiple Video Streams, Single Audio Stream

Desktop Node – Desktop Monitor, Multiple Video Streams, Single Audio Stream

Movable Node – AG in a Box (Mini node)Laptop Node – Laptop Display, Single Video Stream,

Single Audio StreamMinimal Node – Compact Display, Single Video

Stream, Single Audio Stream

AG reference platform

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AG @ ANL AG Team

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ANL’s Tiled Display: ActiveMural

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AG @ KISTI

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KISTI’s Tiled Display

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AG @ UIC EVL

Passive stereoVR display

Camera array for image based panorama

Wireless tablet PCs +cameras velcroed to wallfor private video orpersistent postits

Wireless mobilePlasma Touch screen

Persistent flip notes

5Ghz 40Mbps 802.11aThe Collaborative Continuum

Tiled display(LCD tiles for high resolution,

or plasma screens)

Passive stereoVR display

Camera array for image based panorama

Wireless tablet PCs +cameras velcroed to wallfor private video orpersistent postits

Wireless mobilePlasma Touch screen

Persistent flip notes

5Ghz 40Mbps 802.11aThe Collaborative Continuum

Tiled display(LCD tiles for high resolution,

or plasma screens)

AccessGrid-to-Go

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History and Growth

Since 1999, lead by ANL AG Team and AG Community Worldwide

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International AG Community

AG-Korea.netAG-Korea.net

KISTIKBSICNU

KNU

GIST

PKNU

KISTSOUSNUKMA

About 30 Countries, over 300 AG nodes all over the world (as of About 30 Countries, over 300 AG nodes all over the world (as of Mar. 2005)Mar. 2005)

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Access Grid Projects - Goals

Enable group-to-group interactions at a distance Connect the people and teams of the Alliance and beyond

Improve the user experience Provide an increased sense of presence Support natural human and instrument interaction Eliminate the boundaries of the monitor and the location

Enable complex multi-site visual and collaborative experiences Integrate with high-end visualization environments ActiveMural, Powerwall, CAVE Family, Flatland, Workbenches

Build on integrated Grid services architecture Develop new tools specifically to support group collaboration

Use quality but affordable digital IP based audio/video Leverage Open Source IP tools Build from desktop to cave - high quality experiences

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Access GridResearch Trends

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AG extended toward ACE

Immersive Media SupportedAdvanced Collaboration Environment

Immersive Media SupportedAdvanced Collaboration Environment

Advanced Collaboration EnvironmentAdvanced Collaboration Environment

Access Grid 2.0Access Grid 2.0

Access Grid

Access Grid RetreatComputer Supported Cooperative Work (CSCW) ACM Conference

Workshop on Advanced Collaboration Environments (WACE)

ACE WG of GGF

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AG Research Directions

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Application Deployment

CLMC: Wall covered with streaming videos broadcast from other AG nodes

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AGTk Future Road Map

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Research Activities

Improved Media Tools AGPager (FL/ANL)

– Manual manipulation by a user– Automatic manipulation under an action rule

Video Presence (ANU)– Site tiles according video sources or different const

raints– 3D Audio localization– Site tile highlighting

High Quality Video Service (GIST/Korea)– Extended Video (3D, DV, HDV) service– Monitoring service

Shared Application Several Application included in AGTk

– Shared Browser– Shared Presentation Viewer

Question and Answer Tool (FL/ANL)

Layout based on the Context (AGPager)

Video Presence

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Research Activities

AGTk like Toolkit Conference XP (Microsoft Research)

– Collaboration, conferencing, visualization– Point-point unicast solution integrated with windows Messenger– Interoperability with AG

inSORS AG (inSORS)– Production ready software– New interfaces– Solutions for the bandwidth challenged– Interoperability with AG2– For Enterprise Manager at INRA(USA), AGSC(UK), etc.

Conference XP Client

Sample research appls. Built on CXP

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Research Activities

Virtual Environments (Applications) over AG Collaborative VR

– Shared database– Synchronized Visualization– Avartar representative– Synchronized interaction

Related work– Augmentations to the AG(2000)– AGAVE(2001)Geowall– Gallery on the Grid – TeraVision(2002) – SWoF : Scientific Workspaces of the Future (2003)– Collaborative Virtual Design in Engineering (2003)– Application Steering in a Collaborative Environment (2003)– VR Node Service (2004)

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Research Activities

SWOF Mission : Deploy advanced collaborative

workspaces to support teams of scientists– AG systems – Advanced visualization

services– Large scale displays – New collaborative tools

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SWOF Goals

– Use advanced computer mediated communications techniques to enhance work environments to enable increased productivity for collaborative work

– Exploit the use of high-performance computing technologies (digital media, advance networking, VR, visualization, etc.) to improve the effectiveness of large-scale collaborative work environment

– Show that network based advanced collaboration technology can create enhanced groupwork productivity benefits

Research Activities

Office of the future

Scientific Workspaces of the Future

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Research Activities

SWOF Strategy

– deploy collaborative Virtual Venues, Nodes• Virtual Computational Molecular Biology Lab.• Virtual Atmospheric Modeling and Simulation Lab.

– Provide Enhanced Access Grid Virtual Venue Services

– Develop and deploy Visualization Services– Integrate Advanced Display– Develop and Deploy Tools

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Research Activities

Advanced Biomedical Collaboration Testbed Synchronous participation among biomedical professionals i

n complex environments(at distributed locations) Key area of focus: Convergence of visualization and networki

ng technologies in biomedicine Advanced biomedical tele-collaboration combines

– Grid computation– Mobile computing platforms– Compelling scientific visualization– Applications that permit collaborators to see each other in real

time (AG)– Remote control/distributed computing– Computer-in-the-loop instrumentation– Colleague-in-the-loop instrumentation

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Research Activities

Advanced Biomedical Collaboration Testbed ABC Concept Diagram

Immersive Hepatic Surgery Educational Environment

Digital Imaging and Communications in Medicine

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Research Activities

Advanced Biomedical Collaboration Testbed Distributed Medical Visualization: Framework Diagram

AG Medical Visualization Features Implemented– Persistent Server-Client Tele-Presence– Transparency – Translate, Rotate, Scale– Segmentation – Region of Interest– Arbitrary Clipping Plane

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Access GridDomestic AG Activities

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Korea Grid (K*Grid) project

APEC APGrid

APAN APGrid

GGF Grid

Euro APGrid

ANL/NCSA

Grid Tech-center GNOC

N BT Grid

N NT Grid

N CT Grid

N ET Grid

N IT Grid

N ST Grid

N Supercmpt Grid

N Clusters Grid

N Appls. Grid

Access Grid

VR Grid

Security

Resource Mngt.

Data Mngt.

Inf. Service

National Grid Infra Grid Standard Grid Middleware Research GFK

K*GridKISTI(2002~2006)

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Contents

액세스그리드 구축 고도화 국내 AG 인프라 구축 확장

KISTI AG 인프라 고도화

액세스그리드 커뮤니티 기술 제공 서비스 국내 AG 커뮤니티 구축기술 지원

국내 AG 활용 활성화

액세스그리드 성능향상 기술 연구 고화질 영상 전송 기술 개발 (GIST + KISTI)

멀티캐스트 모니터링 시스템 개발 (KISTI)

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KISTI AG 인프라 고도화 향상된 AG 구축을 통한 안정된 AG 운영과 기술축적 Venue Server & Bridge Server 등 각종 지원서버의 안정적

운영과 서비스 지원 강화– 국내외 연구소 및 대학들에 대한 지원

AG 인프라 고도화– AGTk(Ver2.3) 설치 운영 및 안정화– Venue, Bridge Server 등의 안정화 및 기능 강화– 3D, DV, HDV 영상전송 시스템 안정화 및 적용 확대

Advancement of AG Infrastructure

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AG-Korea.netAG-Korea.net

KISTIKBSICNU

GIST

PKNU

KISTSOUSNUKMA

KNU

국내 AG 인프라 확장 국내 AG 인프라 구축 확장

– 주요 대학과 연구기관 중심 20 여 노드 구축 운영– 2004 년 룸노드 설치 : KBSI, 서울시립대 , 광주과기원

보급형 이동형 AG (ver 3.0) 설계 제작

Extension of AG Infrastructure

Movable AG 2.0

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AG 관련 서버 서비스 Venue Server : vv2.accessgrid.or.kr 서비스 Bridge Server : bridge.accessgrid.or.kr 서비스 주요 서비스

– 국제협업연구 지원 미국 , 일본 , 호주 , 싱가폴 , 대만 등– 국내협업연구 지원 KISTI, 성균관대 , 서울대 , 부경대 외 국내 연구기관 및 대학– 국제 컨퍼런스 원격지 참여 지원 SuperComputing Conference(SC), Global Grid Forum(GGF), Virtual Bioinformatioc Confe

rence, 외 다수– 국내 컨퍼런스 , 워크숍 , 세미나 , 교육 Global Forum Korea(GFK), GFKWorking Group Workshop, Medical Science Workshop,

외 다수

홈페이지 / 메일링리스트를 통한 기술 및 정보 서비스– www.accessgrid.or.kr– AG 관련정보 제공 , AG 구축 및 기술상담 , 문서 제공서비스– AG 국내 메일링리스트 서비스 : ag-korea@kreonet2.net

Support services for AG-Korea Community

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국제 연구활동 ( 시연 ) GIST, KISTI, Ryerson 대학 ( 캐 ) 간 연구결과 시연

– High Quality Video Stream Transmission Showcase– AG retreat meeting

기술지원 ( 상담 , 방문 등 ) 기술상담

– AG 구축과 운영기술 문의 : KBSI, KT, 부산대 , 서울시립대 , 성균관대 등

방문– 과기부 , 정통부 , 공공기술이사회 , 전남대 , 의사협회 , KT, 기자협회 등

이메일 문의– 네트워크 구성 , AG 설치 운영 , PIG 설치 활용 , AG 인증 ,

공유어플리케이션 활용

KBSI 룸노드 구축 및 활용 ( 테스트 )( 시드니대학 ( 호 )-KBSI)

Collaboration with AG Research Group

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Research Activities

Extended Video Services & Monitoring Service

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Research Activities

Comparison of HDV, DV, VIC

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MEET (Multicast debugging toolkit with E2E packet Trace) 시스템 개발

연구목적– 모니터링 도구의 개발을 통해 멀티캐스트 네트워크 안정화에 기여– AG 및 고화질 영상 전송 서비스의 고도화에 간접적 기여

필요성 AG 활성화

– 멀티캐스트 네트워크의 불안정성 극복이 최우선 과제 • 미디어 품질 저하 및 전송 단절

– 응용 계층에서 세션 모니터링이 필요 고화질 영상 전송 및 관련 응용 활성화

– 가용 대역폭의 확보 여부의 파악– 네트워크 품질 정보의 파악

멀티캐스트 결함 및 세션 상태 파악을 위한 관리 / 감독이 필요

Research Activities

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MEET 시스템 개발 연구내용

Multicast Network

AG Node

AG Node

AG Node

AG Node

AG Node

Router

Router

Router Router

Router

Router

MMAG

MMAG

Router

Passive MeasurementPassive Measurement

• 응용 계층의 품질 정보 획득 ( 패킷 손실 , 지연 변이 등 ) 품질 모니터링

Active MeasurementActive Measurement

• 라우팅 경로 정보 획득 • 네트워크 계층의 품질 정보 획득 • 종단 라우터의 멀티캐스트 지원여부 파악 멀티캐스트 진단

Research Activities

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MEET 시스템 개발 구현내용

Session 청취 기능

멀티캐스트 지원 여부 파악 기능

멀티캐스트 네트워크 도시화 기능

초기화면 및 도움말 기능

종단 및 세션 품질 모니터링 기능

Research Activities

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Access GridConcluding Remarks

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Access Grid Support Centre (U.K)www.agsc.ja.net

(+ R&D on AG Technologies)

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Concluding Remarks

Targets for Advanced AG Capability Fusion Collaboratory (DOE) Advanced Photon Source Collaborative Access Teeam (DOE,

NSF) Cancer Bioinformatics Grid (NIH) National Microbial Pathogen Data Center (NIH) Center for Learning and Multimodal Communication (NSF) Advanced Biomedical Consortium (NIH) International Systems Biology Grid (DOE, NSF, NIH, EU) Deployable Field Stations(NSF, DOE, others)

– Microbial Ecology– Environmental Imaging– Archeology and paleonotology

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Concluding Remarks

Where are We Heading Integration of instruments and imaging devices

– Sensors, scanners, microscopes, and rangefinders, etc. Integration of advanced visualization capabilities

– Stereo, very high resolution and immersive display, etc. Improved video and audio capabilities

– HD video, multi-channel studio quality audio Rich suite of groupware plug-ins

– To do lists, workflows, voting tools, agenda tools, etc. Collection of innovative collaborative applications

– Steering and visualization, web tools, portals

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Q&A

For more informationjhmoon@kisti.re.kr, 042-869-0578www.accessgrid.or.kr

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