Architecture, implementation and parallelization of the software to search for periodic gravitational wave signals

Understand

The parallelization, design and scalability of the \sky code to search for periodic gravitational waves from rotating neutron stars is discussed.

• The code is based on an efficient implementation of the F-statistic using the Fast Fourier Transform algorithm.
• To perform an analysis of data from the advanced LIGO and Virgo gravitational wave detectors' network, which will start operating in 2015, hundreds of millions of CPU hours will be required - the code utilizing the potential of massively parallel supercomputers is therefore mandatory.
• We have parallelized the code using the Message Passing Interface standard, implemented a mechanism for combining the searches at different sky-positions and frequency bands into one extremely scalable program.