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Showing 1 to 5 of 5 for “"parallel fft"”.
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Low-energy radix-2 serial and parallel FFT designs
… implementations of the Fast Fourier Transform (FFT). This work presents several new hardware implementations of the radix-2 FFT algorithms that take advantage of intermittent data and parallelism to reduce the energy per FFT. In the modified serial design, by using a low-power control memory and …
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Parallel Fft-Accelerated Time-Domain Integral Equation Solvers for Electromagnetic Analysis
… that of the circuit solver, is accelerated by an FFT-based algorithm, viz. the time-domain adaptive integral method. The resulting parallel FFT-accelerated transient field-circuit simulator is used to (i) analyze electromagnetic scattering from large-scale structures, including an aircraft shell, …
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Optimizing a parallel fast Fourier transform
Parallel computing, especially cluster computing has become more popular and more powerful in recent years. Star-P is a means of harnessing that power by eliminating the difficulties in parallelizing code and by providing the user with a familiar and intuitive interface. This paper presents methods …
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The Hybrid Architecture Parallel Fast Fourier Transform (HAPFFT)
The FFT is an efficient algorithm for computing the DFT. It drastically reduces the cost of implementing the DFT on digital computing systems. Nevertheless, the FFT is still computationally intensive, and continued technological advances of computers demand larger and faster implementations of this …
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Optimization of FFT communication on 3-D torus and mesh supercomputer networks
The fast Fourier transform (FFT) is of intense interest to the scientific community. Its utility in a vast range of parallel scientific simulations warrants investigating its efficiency on a leading class of supercomputers that employ 3-D torus and mesh networks. Given the divide-and-conquer …