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Acceleration of Ultrasound Neurostimulation Using Mixed-Precision Arithmetic
Duchoň, Radek ; Olšák, Ondřej (referee) ; Jaroš, Jiří (advisor)
K-Wave is an open source tool for acoustic and ultrasound simulation. Current available implementations are written in C++ and Matlab. The aim of this thesis is to accelerate the existing implementation of ultrasound simulation by means of lower precision calculations on Nvidia graphics cards using the CUDA software platform. Another benefit of this work should be a reduced memory requirement, which will enable larger simulations to be performed. However, due to the use, for example, for neurostimulation of the brain, the reduced accuracy must not disturb the results as a whole too much. It is therefore important to identify suitable quantities that can be stored in lower precision. In this work, possible approaches and their effectiveness in utilizing lower precision will be analyzed. Furthermore, a solution proposal will be made, which will include identifying potential variables for reduction. This will be followed by specifying the achieved implementation and its testing. The conclusion will focus on evaluating the solution based on the results obtained from the testing.
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