Usage: Overview
| Users | Totals | Residence | Organization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identified | US | Asia | Europe | Other | Identified | Edu. | Ind. | Gov. | Other | |||
| Total Users 1 |  |
105,919 | 105,342 | 37% | 32% | 22% | 9% | 25,547 | 73% | 4% | 2% | 21% |
| - Simulation Users 5 |  |
7,998 | 7,733 | 59% | 17% | 16% | 8% | 7,187 | 92% | 5% | 1% | 3% |
| - Interactive Users 6 |  |
31,213 | 30,966 | 49% | 24% | 18% | 9% | 8,901 | 96% | 2% | 2% | 0% |
| - Download Users 7 |  |
93,427 | 93,262 | 37% | 32% | 22% | 9% | 18,503 | 94% | 3% | 2% | 0% |
| Total Users (old defn) 8 |  |
39,274 | - | - | - | - | - | - | - | - | - | - |
| Simulation Users 5 | 7,998 users |  |
|---|---|---|
| Simulation Runs | 360,536 jobs |  |
| Total CPU Time | 4,677 days | |
| Total Wall Time | 24,400 days | |
| Total Interaction Time | 7,332 days | |
| Users with > 10 mins of CPU Time | 2,124 users | |
| Avg. Number of Simulation Runs/User | 45 jobs | |
| Avg. Time between First and last Simualtion | 180 days | |
| Repeat Users with > 10 Simulation Jobs | 4,394 users | |
| Repeat Users with > 3 Months 9 | 2,352 users |
| Domains Served | 13,897 |
|---|---|
| Cummulative Interactive User Sessions 10 | 213,048 |
| Cummulative Session Time | 7,290 days |
| Visitors 11 | 273,961 |
| Visits 12 | 862,906 |
| New Accounts | 7,747 |
| Max User Logins | 493 users on 2009-02-26 |
| Web Server Hits | 55,320,938 |
| Type | Users | |
|---|---|---|
| Interactive | Download | |
| Nano 101 | 937 | 1,249 |
| Nano 501 | 1,882 | 2,905 |
| Research Seminars | 1,564 | 2,884 |
| Courses | 3,992 | 5,847 |
| Series | 3,446 | 5,229 |
| Workshops | 817 | 2,240 |
| Teaching Materials | - | 995 |
| Other non-interactive Resources | - | 1,447 |
| Breeze Presentations | 8,366 | - |
| PDF Files | - | 11,581 |
| Podcasts | - | 5,189 |
| Other Documents | - | 1,420 |
| Online Meetings | 283 meeting sessions 672 participants |
|---|---|
| Shared Tool Sessions 13 | 164 |
| New tools under development | 43 |
| Users | Totals | Residence | Organization | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Identified | US | Asia | Europe | Other | Identified | Edu. | Ind. | Gov. | Other | |||
| Total Users 1 | |
105,919 | 105,342 | 37% | 32% | 22% | 9% | 25,547 | 73% | 4% | 2% | 21% |
| - Registered Users 2 |  |
10,255 | 9,908 | 56% | 21% | 16% | 7% | 9,144 | 35% | 6% | 1% | 58% |
| - Unregistered Interactive Users 3 |  |
19,495 | 19,371 | 41% | 28% | 22% | 9% | 3,963 | 95% | 2% | 3% | 0% |
| - Unregistered Download Users 4 |  |
76,169 | 76,063 | 33% | 35% | 23% | 9% | 12,440 | 94% | 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.