Usage: Overview
| Users | Totals | Residence | Organization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identified | US | Asia | Europe | Other | Identified | Edu. | Ind. | Gov. | Other | |||
| Total Users 1 |  |
262,175 | 246,643 | 26% | 39% | 23% | 11% | 36,195 | 93% | 4% | 2% | 1% |
| - Simulation Users 5 |  |
12,440 | 5,064 | 45% | 28% | 19% | 8% | 5,214 | 90% | 5% | 2% | 3% |
| - Interactive Users 6 |  |
60,816 | 56,998 | 34% | 36% | 20% | 11% | 10,218 | 94% | 4% | 2% | 0% |
| - Download Users 7 |  |
235,280 | 233,391 | 27% | 39% | 23% | 11% | 29,476 | 95% | 3% | 2% | 0% |
| Total Users (old defn) 8 |  |
73,274 | - | - | - | - | - | - | - | - | - | - |
| Simulation Users 5 | 12,440 users |  |
|---|---|---|
| Simulation Runs | 431,743 jobs |  |
| Total CPU Time | 10,748 days | |
| Total Wall Time | 37,594 days | |
| Total Interaction Time | 8,386 days | |
| Users with > 10 mins of CPU Time | 3,025 users | |
| Avg. Number of Simulation Runs/User | 35 jobs | |
| Avg. Time between First and Last Simulation | 1,433 days | |
| Repeat Users with > 10 Simulation Jobs | 5,838 users | |
| Repeat Users with > 3 Months 9 | 3,099 users |
| Domains Served | 15,780 |
|---|---|
| Cummulative Interactive User Sessions 10 | 175,739 |
| Cummulative Session Time | 7,758 days |
| Visitors 11 | 545,396 |
| Visits 12 | 1,461,016 |
| New Accounts | 14,003 |
| Max User Logins | 644 users on 2013-02-20 |
| Web Server Hits | 100,186,323 |
| Shared Tool Sessions 13 | 119 |
|---|---|
| New tools under development | 60 |
| Users | Totals | Residence | Organization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identified | US | Asia | Europe | Other | Identified | Edu. | Ind. | Gov. | Other | |||
| Total Users 1 | |
262,175 | 246,643 | 26% | 39% | 23% | 11% | 36,195 | 93% | 4% | 2% | 1% |
| - Registered Users 2 |  |
20,747 | 7,044 | 44% | 29% | 18% | 9% | 7,269 | 88% | 6% | 2% | 4% |
| - Unregistered Interactive Users 3 |  |
32,728 | 31,573 | 27% | 39% | 23% | 11% | 4,180 | 93% | 4% | 3% | 0% |
| - Unregistered Download Users 4 |  |
208,700 | 208,026 | 26% | 40% | 24% | 11% | 24,746 | 95% | 3% | 2% | 0% |
- Sum of Registered Users2, Unregistered Interactive Users3 and Unregistered Download Users4
- Number of Users that logged in. User registration assigns a unique login to each individual user.
- 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.
- 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.
- Number of Registered Users2 that ran one or more simulation runs.
- All Unregistered Users, identified by unique hosts/IPs, that had an active Session 10. Does not include known web bots/crawlers.
- 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.
- Sum of Simulation Users 5 + Unregistered Interactive Users 3 including web bots/crawlers.
- Number of Simulation users that returned after a gap of 3 months.
- 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.
- Identified by a unique IP address / hostname.
- 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 - Number of Simulation sessions that were shared between 2 or more users.