Traffic Analysis and model synthesis of remote instrumentation - dorii

Figure 12 Pathload output: available bandwidth estimated from PSNC to EUCENTRE
The analysis of the data collected by the seismic sensor network is carried out by a parametric job,
where the parameters correspond to different settings for the two seismic stations being monitored,
so a single execution of the application produces two children nodes. The job is launched two
times, and the target CEs are located at different sites: GRNET (ce01.athena.hellasgrid.gr), PSNC
(ce.reef.man.poznan.pl) and IFCA-CSIC (egeece01.ifca.es).
Table 2 reports the time necessary to upload the file from a specific SE (se01.kallisto.hellasgrid.gr)
to each CE. As expected, the upload time is really low and the throughput is very high when we
choose a CE located in the same network as the SE, whereas we have the highest upload time when
the CE is located at IFCA-CSIC. It is relevant to highlight that although the available bandwidth
between PSNC and GRNET estimated by using Pathload is more than 100 Mb/s (see Figure 13) ,
when the selected CE is located at PSNC (ce.reef.man.poznan.pl) the throughput is less than 45
Mb/s.
CE
Job Upload Time Throughput
Submission Time [s]
[MB/s]
ce01.athena.hellasgrid.gr Jul 6 2010 12:45 6 35.8
ce01.athena.hellasgrid.gr Jul 6 2010 12:45 8 24.1
egeece01.ifca.es Jul 6 2010 12:46 99 2.1
egeece01.ifca.es Jul 6 2010 12:46 87 2.4
ce.reef.man.poznan.pl Jul 7 2010 16:57 36 5.5
ce.reef.man.poznan.pl Jul 7 2010 16:57 43 4.9
Table 2 EEWS Upload Time from se01.kallisto.hellasgrid.gr
Figure 13 Pathload output: available bandwidth estimated from PSNC to GRNET
DSA1.5 PUBLIC 14