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Table 5 Speedup of the parallel automatic ECG analysis algorithm in each step on a 24-h long ECG signal

From: Mobile GPU-based implementation of automatic analysis method for long-term ECG

Step Sequential program (s) Parallel program (s) Parallel-optimized program (s) Speedup (parallel vs. sequential) Speedup (parallel-optimized vs. sequential)
Artifact removal 1.267 0.061 0.055 20.78× 23.05×
QRS complex detection 4.560 0.834 0.652 5.47× 6.99×
ECG waveform classification 1.155 0.268 0.265 4.31× 4.36×
Total 7.565 1.448 1.257 5.22× 6.02×