Usage: Overview
| Users | Totals | Residence | Organization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identified | US | Asia | Europe | Other | Identified | Edu. | Ind. | Gov. | Other | |||
| Total Users 1 | 101,826 | 100,111 | 29% | 37% | 24% | 10% | 20,570 | 66% | 4% | 2% | 28% | |
| - Simulation Users 5 | 6,469 | 6,469 | 54% | 19% | 20% | 7% | 6,469 | 91% | 5% | 1% | 4% | |
| - Interactive Users 6 | 33,281 | 32,812 | 44% | 27% | 20% | 9% | 9,211 | 97% | 2% | 1% | 0% | |
| - Download Users 7 | 94,573 | 94,062 | 30% | 36% | 24% | 10% | 16,278 | 94% | 3% | 2% | 0% | |
| Total Users (old defn) 8 | 39,763 | - | - | - | - | - | - | - | - | - | - | |
| Simulation Users 5 | 6,469 users | |
|---|---|---|
| Simulation Runs | 227,162 jobs | |
| Total CPU Time | 1,300 days | |
| Total Wall Time | 16,491 days | |
| Total Interaction Time | 5,156 days | |
| Users with > 10 mins of CPU Time | 1,107 users | |
| Avg. Number of Simulation Runs/User | 35 jobs | |
| Avg. Time between First and last Simualtion | 329 days | |
| Repeat Users with > 10 Simulation Jobs | 2,888 users | |
| Repeat Users with > 3 Months 9 | 2,136 users |
| Domains Served | 10,976 |
|---|---|
| Cummulative Interactive User Sessions 10 | 98,640 |
| Cummulative Session Time | 8,080 days |
| Visitors 11 | 214,347 |
| Visits 12 | 661,250 |
| New Accounts | 5,029 |
| Max User Logins | 465 users on 2010-02-09 |
| Web Server Hits | 44,440,221 |
| Online Meetings | 117 meeting sessions 357 participants |
|---|---|
| Shared Tool Sessions 13 | 94 |
| New tools under development | 30 |
| Users | Totals | Residence | Organization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identified | US | Asia | Europe | Other | Identified | Edu. | Ind. | Gov. | Other | |||
| Total Users 1 | 101,826 | 100,111 | 29% | 37% | 24% | 10% | 20,570 | 66% | 4% | 2% | 28% | |
| - Registered Users 2 | 8,614 | 7,553 | 53% | 21% | 19% | 7% | 7,547 | 18% | 5% | 1% | 76% | |
| - Unregistered Interactive Users 3 | 17,610 | 17,353 | 33% | 32% | 25% | 10% | 2,877 | 95% | 3% | 2% | 0% | |
| - Unregistered Download Users 4 | 75,602 | 75,205 | 25% | 39% | 25% | 11% | 10,146 | 93% | 4% | 3% | 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.
- -
- 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.









