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Usage: Overview

Table 1: User statistics
Users Totals Residence Organization
Identified US Asia Europe Other Identified Edu. Ind. Gov. Other
Total Users 1
103 72 54% 14% 19% 13% 24 83% 4% 13% 0%
- Simulation Users 5
1 0 0% 0% 0% 0% 0 0% 0% 0% 0%
- Interactive Users 6
49 45 82% 7% 9% 2% 15 100% 0% 0% 0%
- Download Users 7
66 63 57% 11% 16% 16% 14 100% 0% 0% 0%
Table 2: Simulation Usage
Simulation Users 5 1 users
Simulation Runs 1 jobs
Total CPU Time 0 seconds  
Total Wall Time 13 seconds  
Total Interaction Time 3 seconds  
Users with > 10 mins of CPU Time 0 users  
Avg. Number of Simulation Runs/User 1 jobs  
Avg. Time between First and Last Simulation 0 seconds  
Repeat Users with > 10 Simulation Jobs 0 users  
Repeat Users with > 3 Months 9 0 users  
Table 3: Miscellaneous Statistics
Domains Served 197
Cummulative Interactive User Sessions 10 129
Cummulative Session Time 87 days
Visitors 11 638
Visits 12 1,399
New Accounts 4
Max User Logins 10 users on 2012-04-13
Web Server Hits 170,628
Table 4: User statistics by registered/unregistered
Users Totals Residence Organization
Identified US Asia Europe Other Identified Edu. Ind. Gov. Other
Total Users 1
103 72 54% 14% 19% 13% 24 83% 4% 13% 0%
- Registered Users 2
32 7 86% 0% 0% 14% 12 100% 0% 0% 0%
- Unregistered Interactive Users 3
22 19 63% 16% 21% 0% 4 100% 0% 0% 0%
- Unregistered Download Users 4
49 46 46% 15% 22% 17% 8 50% 13% 38% 0%
  1. Sum of Registered Users2, Unregistered Interactive Users3 and Unregistered Download Users4
  2. Number of Users that logged in. User registration assigns a unique login to each individual user.
  3. Number of Unregistered Users, identified by unique hosts/IPs, that had an active Session 10 without logging in. Does not include known web bots/crawlers.
  4. Number of Unregistered users, identified by unique hosts/IPs, that had an active session of less than 15 minutes without logging in and downloaded a non-interactive resource such as PDF or podcast. Does not include web bots/crawlers.
  5. Number of Registered Users2 that ran one or more simulation runs.
  6. All Unregistered Users, identified by unique hosts/IPs, that had an active Session 10. Does not include known web bots/crawlers.
  7. All Unregistered users, identified by unique hosts/IPs that downloaded a non-interactive resource such as PDF or podcast. Does not include known web bots/crawlers.
  8. Sum of Simulation Users 5 + Unregistered Interactive Users 3 including web bots/crawlers.
  9. Number of Simulation users that returned after a gap of 3 months.
  10. Begins when an IP is active on the site for at least 15 minutes. Ends when inactive for more than 30 minutes, including time spent viewing videos.
  11. Identified by a unique IP address / hostname.
  12. Based on MIT OCW metric of Visits: A visit is activity by a unique visitor delimitated by a 30 minute absence from the site on either side of the activity.
    These visits correspond to unique visitors 11. Does not include known web bots/crawlers
  13. Number of Simulation sessions that were shared between 2 or more users.