Research
Ariadna
Informatics
Ionospheric Data Processing

Performance Statistics on Distributed Computing for Ionospheric Data Processing - first run

Latest: the computation process has been finished on Wednesday, 22.06.2005., 21:17 PM, after 5 days 6 hours and 17 minutes.

Latest: shortly after 1PM, 22.06.2005, the sum of the CPU frequencies of the momentarily active computers went above 30 GHz - corresponding to the performance value of 30·109 double precision floating point operations per second (30 GFlops). Enjoy your meal, dear Users!

The distributed computing server was started at 15:00 on Friday, 17.06.2005. The client (screen saver) was sent to the users shortly before this - the increasing available CPU power can be observed on the charts during the first hours, as the users were deploying the clients.

Overall statistics after the first 126.3 hours (21:17, 22.06.2005.):

Server running time
7577 minutes (126.3 hours)
Number of contacted clients
27
Theoretical peak performance 1
41.2 GFlops
Processed data records
2 035 046 out of 2 035 046
Overall progression
100 %
Average client availability 2
17.1 hrs / day (71.3 %)

1 According to double precision floating point computations and assuming Intel P3/P4 architectures.
2 The average idle time percentage of the user computers. It shows that how much time an average client runs the screensaver.


Number of contributing computers grouped by ESA directorates:

contributions per directorate



Available runtime charts (based on server snapshots taken in every 10 minutes):

After 126 hours (total run)
Client performance
Overall progression
After 117 hours
Client performance
Overall progression
After 92 hours Client performance
Overall progression
A typical working day -
24 hours shot on Monday
(running hours 57-81)

Client performance
After 68 hours Client performance
Overall progression
After 24 hours Client performance
Overall progression
Currently visiting the ACTweb
tracker