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The homework required coding a 2D parallel Poisson solver using MPI. The domain was divided among processors horizontally. At each iteration, processes exchanged boundary values with neighbors using MPI sends and receives. Finally, MPI_Allgather was used to gather the full solution. The simulation achieved an error of 1E-4 and produced correct contour and gradient plots, though gradient calculation was not parallelized. Improvements included using MPI IO for file output and adding OpenMP to parallelize the

Author

kjayasurya

Language

EN