We implement the frequency domain filtering on CPU and GPU respectively and analyze the speed-up obtained from the CUDA?s parallel processing paradigm. In contrast to signal and image filtering in spatial domain which uses convolution operations and hence is more compute-intensive for filters having larger spatial extent, the frequency domain filtering uses FFT (Fast Fourier Transform which is much faster and significantly reduces the computational complexity of the filtering. We expect RT- CUDA to be needed by many KSA industries dealing with science and engineering simulation on massively parallel computers like NVIDIA GPUs.įrequency Domain Image Filtering Using CUDAĭirectory of Open Access Journals (Sweden)įull Text Available In this paper, we investigate the implementation of image filtering in frequency domain using NVIDIA?s CUDA (Compute Unified Device Architecture. RTCUDA also allows transparent invocation of the most optimized external math libraries like cuSparse and cuBLAS enabling efficient design of linear algebra solvers. RT- CUDA takes a C program and convert it into an optimized CUDA kernel with user directives in a configuration file for guiding the compiler. In this work we have developed a restructuring software tool (RT- CUDA) following the proposed optimization specifications to bridge the gap between high-level languages and the machine dependent CUDA environment. Optimization Specifications for CUDA Code Restructuring Tool Introduzione equilibrio di sistemi termodinamici che compiono, oltre al lavoro di espansione, altre forme di lavoro sostanze magnetiche dielettrici superconduttività fenomeni superficiali fluidi in campo gravitazionale liquido in recipiente in stato di imponderabilità radiazione solidi elastici elementi galvanici. Principi generali problemi unidimensionali campo centrale sistemi di punti punto vincolato sistemi di punti vincolati simmetrie rotazioni e moto relativo corpo rigido sistemi lineari stabilità teoria qualitativa piccole oscillazioni principi variazionali trasformazioni canoniche serie di Lie proprietà dell'azione sistemi integrabili teoria perturbativa sistemi quasi integrabili sistemi caotici integrazione numerica modelli hamiltoniani equazioni stocastiche meccanica statistica corda elastica equazione delle onde meccanica dei continui.
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