Support

Support Options

Submit a Support Ticket

 
You are here: Home » Usage » Overview » By Calendar Year

Usage: Overview

Table 1: User statistics
Users Totals Residence Organization
Identified US Asia Europe Other Identified Edu. Ind. Gov. Other
Total Users 1
15,086 14,384 33% 32% 19% 11% 763 93% 3% 4% 0%
- Simulation Users 5
167 164 67% 9% 9% 13% 24 75% 21% 4% 0%
- Interactive Users 6
2,453 2,267 42% 30% 19% 8% 312 99% 0% 0% 0%
- Download Users 7
13,771 13,214 34% 31% 19% 11% 378 96% 1% 3% 0%
Table 2: Simulation Usage
Simulation Users 5 167 users
Simulation Runs 3,112 jobs
Total CPU Time 30 days  
Total Wall Time 210 days  
Total Interaction Time 37 days  
Users with > 10 mins of CPU Time 18 users  
Avg. Number of Simulation Runs/User 19 jobs  
Avg. Time between First and Last Simulation 261 days  
Repeat Users with > 10 Simulation Jobs 35 users  
Repeat Users with > 3 Months 9 61 users  
Table 3: Miscellaneous Statistics
Domains Served 4,867
Cumulative Interactive User Sessions 10 8,198
Cumulative Session Time 227 days
Visitors 11 48,732
Visits 12 103,907
New Accounts 140
Max User Logins 87 users on 2015-01-12
Web Server Hits 2,084,953
Table 4: User statistics by registered/unregistered
Users Totals Residence Organization
Identified US Asia Europe Other Identified Edu. Ind. Gov. Other
Total Users 1
15,086 14,384 33% 32% 19% 11% 763 93% 3% 4% 0%
- Registered Users 2
425 422 72% 12% 6% 9% 58 84% 12% 3% 0%
- Unregistered Interactive Users 3
1,769 1,605 28% 37% 25% 8% 98 93% 3% 4% 0%
- Unregistered Download Users 4
12,892 12,357 32% 32% 19% 12% 607 94% 2% 4% 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.
  14. Metrics are calculated and updated at the beginning of each month.