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An approach for the fast analysis of “irregular”, i.e., of conformal, periodic or aperiodic, 2D arrays, based on the use of the p-series approach and Non-Uniform FFT (NUFFT) routines is proposed to restore the asymptotic growth of the computing time to that of few, standard FFTs. A sub-array partition strategy is also sketched and shown to further unburden the procedure and controlling the accuracy...
While GPGPU stands for general-purpose computation on graphics processing units, the lack of explicit support for inter-block communication on the GPU arguably hampers its broader adoption as a general-purpose computing device. Interblock communication on the GPU occurs via global memory and then requires barrier synchronization across the blocks, i.e., inter-block GPU communication via barrier synchronization...
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