The following was sent to Maxine Brown of UIC in response to email from her (attached at the bottom): We (SLAC) are showing 3 applications at SC2002. The demonstrations will be given at the SLAC/FNAL booth (R3003): 1. An evolution of the Bandwidth from the Low Lands demo (see http://www-iepm.slac.stanford.edu/monitoring/bulk/igrid2002/) given at iGrod2002. The evolved demo is described at: http://www-iepm.slac.stanford.edu/monitoring/bulk/sc2002/ and is titled "Bamdwidth to the World". 2. A Quality of Service demonstration showing the effects of the QBone Scavenger Service (QBSS) over a 1 Gbit/s bottleneck. We did not have sufficient time to set this up at iGrid2002. This demo is called "Network Scavengers". We will mark our traffic and route it with LOWER priority than the other traffic. To do this we will use 3 Linux hosts with GE interfaces connected via a switch to a 1GE interface to the SC2002 show floor network. The idea is that two of the hosts will be able to saturate the 1GE interface and will run QBSS traffic. The third host will be alternately on and off, it will run Best Effort (i.e. unmarked traffic). When the 3rd host runs it ought to be able to drive 600-900 Mbits/s and since its traffic is higher priority than the other 2 hosts, the other 2 hosts should back off. We will display the switch port utilization in real-time to show the effects. 3. An "Extreme Bandwidth" demonstration with Caltech, CERN, Level 3, StarLight and Cisco. In this we will have 10Gbits/s between the Level 3 Gateway at Sunnyvale (near SLAC), StarLight (Chigago), & SC2002, plus 2.5 Gbits/s to CERN. Our goal is demonstrate > 1 Gbits/s disk to disk and several Gbits/s memory to memory trans-continental US and also trans Atlantic. See http://www-iepm.slac.stanford.edu/monitoring/bulk/sc2002/hiperf.htm The iGrid2002 demos taught us: "you can't be too prepared", "if it can go wrong it will go wrong", "make sure you have backup plans". More specifically we learnt the importance of making sure the hosts are configured/customized well in advance and all applications tested on each host. We also learnt which parts of the demonstrations were eye-catching and evoked the most interest, which were the hardest to explain or caused most confusion, which were easiest to run. We also learnt the importance of having our own router and/host throughput logging to validate/understand that reported from the floor network. Improvements: File Edit Options Buffers Tools Help File Edit Options Buffers Tools Operate Mark Regexp Immediate Subdir Help drwxr-xr-x 2 cottrell sf 2048 Nov 15 1995 dhcp "if it can go wrong it will go wrong", "make sure you have backup plans". More specifically we learnt the importance of making sure the hosts are configured/customized well in advance and all applications tested on each host. We also learnt which parts of the demonstrations were eye-catching and evoked the most interest, which were the hardest to explain or caused most confusion, which were easiest to run. We also learnt the importance of having our own router and/host throughput logging to validate/understand that reported from the floor network. Improvements: The seeds of the "Extreme Bandwidth" demonstration came from discussions between Linda Winkler (StarLight), Paul Fernes "if it can go wrong it will go wrong", "make sure you have backup plans". More specifically we learnt the importance of making sure the hosts are configured/customized well in advance and all applications tested on each host. We also learnt which parts of the demonstrations were eye-catching and evoked the most interest, which were the hardest to explain or caused most confusion, which were easiest to run. We also learnt the importance of having our own router and/host throughput logging to validate/understand that reported from the floor network. Improvements: The seeds of the "Extreme Bandwidth" demonstration came from discussions between Linda Winkler (StarLight), Paul Fernes (Level 3), Olivier Martin (CERN) and Les Cottrell (SLAC) held in the halls at iGrid2002. We have added increased and improved monitoring of the booth router and of the hosts sending data. We will have more hosts sending data from the SC2002 booth (9 vs. 4 for iGrid2002). The hosts have been fully set up and tested at SLAC before being shipped to SC2002 (at iGrid2002, we relied on hosts already at iGrid2002, and we did not get access to 2 of those hosts until the evening before the demo. From feedback at iGrid2002 we have improved the demos to make them more robust and increase the information displayed to make things more obvious. Testimonials: We learnt much from iGrid2002, as a result of which we have a whole new 10GE application ("Extreme Bandwidth") pushing the current performance envelope. iGrid2002 was an extremely valuable, realistic and timely staging event. > -----Original Message----- > From: Maxine Brown [mailto:maxine@uic.edu] > Sent: Friday, November 08, 2002 7:22 AM > To: apps@igrid2002.org > Subject: [apps] KNOWLEDGE TRANSFER FROM iGRID TO SC 2002 > > > All, > > Many of you will be showcasing applications at the SC'2002 > conference in > Baltimore that you first showed at iGrid 2002 -- although > your demos will > be a bit more polished, given your experiences in Amsterdam. > This perhaps > warrants some PR that can be mutually beneficial. I am > willing to write a > press release in the coming week that promotes your SC > demoes, PROVIDED > THAT the "lessons learned" from your iGrid experiences > impacted in some way > how you now do your science. The impact can be small or large > -- did any > knowledge transfer take place? > > I would appreciate it if those of you showing iGrid demos at SC'2002 > provide brief answers to the following questions by MONDAY, > NOVEMBER 11 (so > I can write something before SC)!!! > > QUESTIONS: > > What application are you showing? (Title, brief description > and URL if > different from iGrid.) > > What did your iGrid experiences teach you? > > Given your iGrid experiences, how have you enhanced your > application and/or > improved performance? > > Where can people see your demo (what booth)? > > (OPTIONAL) Testimonials and/or comments about iGrid as a > "staging event" > for future activities? > > > I hope many of you will respond by MONDAY. Thanks. > > Maxine