1. Internet2 Spring 2001 Washington, DC March 9, 2001 George Brett NLANR Distributed Applications Support Team (NCSA/UIUC) End-to-End Applications

2. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net e2e Applications Problem To Be Solved Problem Scenario and Desired Outcome Short-Term Activities Long-Term Activities For details see Internet2 End-to-End Performance Initiative - Design Document (PDF) Section 2.PDF

3. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net e2e Applications Problems Problem To Be Solved –perceived: "The network is slow" "The network is broken" –lack of tools and techniques to develop applications so that they can effectively use the network –lack of knowledge of what computing and network resources required to obtain the desired results? Desired Outcome –standard software libraries and various remote services –libraries and services are network aware and adapt to provide the optimum performance –diagnostic tools inform where the problem lies and who to contact to get it resolved.

4. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net e2e Applications Activities Short-Term Activities 1.Establish pilot applications and communities. 2.Resource estimation for applications. 3.Application development. 4.Application performance. 5.Middleware development assistance.

5. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net 1a. Pilot Applications Core set of applications That stress different attributes of Internet2 environments. –multicast, QoS, UDP, RTP, TCP, gigabit flows, low latency, and middleware use Potential applications to be included are –FTP, H.323 videoconferencing, high bandwidth videoconferencing, remote instrument control, and data mining.

6. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net 1b. Applications Communities Based context of research and education efforts Attributes: –at least one should be international in scope –at least one discipline society –others span multiple campuses Examples –the Visible Human Project –high energy physics (Atlas and CMS, GriPhyN) –a distributed learning group –National Center for Data Mining (Penn and UIC) –the material scientists collaboratory –the UNIDATA community.

7. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net e2e Applications Activities 2 and 3 2. Resource estimation for applications. develop the means for applications programmers to estimate the resources that will be required by the application based on the various activities that the application will perform 3. Application development. develop common practices and tools for building good applications

8. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net e2e Applications Activities 4 and 5 4. Application performance institute mechanisms for application level performance monitoring and problem diagnosis implementation of reference servers for specific applications, software tools, and references on where to get help. modeled on the Gray Finger Pointing ToolsGray Finger Pointing Tools 5. Middleware development assistance. follow the development of middleware functions assist in making them available to applications. facilitate testing infrastructure for middleware functions

9. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net e2e Applications Long-Term Activities Develop tools, techniques, and infrastructure that will allow applications to adapt to various network conditions –Auto tuning –Quality of Service –Well informed measurement

10. Mar 9, 2001Internet2 -- © 2001 ghb@dast.nlanr.net Contact Info George H. Brett II NCSA NLANR / DAST ghb@dast.nlanr.net http://www.ncsa.edu/~ghb v. 703-248-0120 f. 703-248-0100 http://dast.nlanr.net/Clearinghouse http://www.nlanr.net/