The parallel direct solver is important for 2D frequencydomain modeling. It can effectively reduce the memory requirement and computing time. And multi-shot seismic data can be simulated efficiently in this way. However the traditional parallel sparse LU direct solvers, such as MUMPS and superLU, have poor speed-up performance. In this paper, we introduce a new parallel direct solver called banded-block cyclic reduction(BBCR), which is developed to get a better speed-up performance and reduce the computing ti…
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