Applying Ophidia: the EMSO-INGV case study

INDIGO Solutions for seismological data

This demo shows some of the activities performed within the INDIGO-DataCloud project (https://www.indigo-datacloud.eu/communities/champions) to import seismic data in SAC, the Seismic Analysis Code format into Ophidia, a big data analytics tool for the analysis of multidimensional data.
In this simple example the Fast Fourier Transform (FFT) is calculated on a time series recorded by a broadband seismometer installed on a seafloor observatory. The FFT runs on single PC with SAC and then with Ophidia and compare the two cases. Ophidia can be a useful processing tool for seismological data.


Technical details:
Data: time series in SAC format, 648 MB, ~ 60 million samples
Hardware
For SAC test: Intel(R) Core(TM) i5-3470 CPU @ 3.20GHz, 3201 Mhz, 4 core
8 Gb RAM, OS: Linux Mint 16 64 bit
For Ophidia test: CPU Xeon E5-2670, Nr cpu: 2, Nr core/cpu: 8, Clock Rate: 2,6 GHz, RAM: 64 GB