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We present a pipelined wavefront parallelization approach for stencil-based computations. Within a fixed spatial domain successive wavefronts are executed by threads scheduled to a multicore processor chip with a shared outer level cache. By re-using data from cache in the successive wavefronts this multicore-aware parallelization strategy employs temporal blocking in a simple and efficient way. We...
Classic vector systems have all but vanished from recent TOP500 lists. Looking at the newly introduced NEC SX-9 series, we benchmark its memory subsystem using the low level vector triad and employ an advanced lattice Boltzmann flow solver kernel to demonstrate that classic vectors still combine excellent performance with a well-established optimization approach. Results for commodity x86-based systems...
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