Navegando por Autor "Costa, Danielly Cristina de Matos"

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Porting, pro filing and optimization of an ultrasound processing algorithm using Raspberry Pi 3
(Universidade Federal do Rio Grande do Norte, 2022-02-11) Costa, Danielly Cristina de Matos; Souza, Samuel Xavier de; Silva, Kayo Gonçalves e; Ichihara, Danilo Chaves de Sousa
The ultrasound monitoring patch developed by Pulsify Medical is an innovative device that allows the safe monitoring of the patient's cardiac performance, wherever they go, in a flexible and mobile way. The present work, done with this company partnership aims to assist in the choice of the architecture of this patch device, and consists in the portability and parallelization of an ultrasound delay and sum (DAS) algorithm, which will later be incorporated into Raspberry, for further comparisons. For that, initially, the code was ported from Matlab to C. Then, optimizations were made to finally start the analysis and parallelizations in Raspberry using OpenMP. For the analysis, tools like gprof and gprof2dot were used. After the analysis, the parallelization of one of the most costly functions was started and clauses like collapse and schedule were used. Then, the running time, using different combinations of clauses and for loops, were collected, which were used on a scalability analysis. This analysis, however, showed that the raspberry architecture maybe wasn't the best for this kind of application.

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