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Why does the errors oscillate strongly in my multigrid method? |
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October 19, 2009, 03:29
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Why does the errors oscillate strongly in my multigrid method?
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Member
Edison
Join Date: Mar 2009
Posts: 40
Rep Power: 17  |
I am solving a two-dimensional Poisson equation with two-level V-cycle.
However, I observe that my errors and residuals decrease with oscillation. In addition, the convergence is slower than single grid. Can anybody tell me how to detect what is wrong? Thank you. |
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