TridiagLU Repository: Parallel (MPI) direct solver for a tridiagonal system of equations: Contains the functions for solving a non-periodic tridiagonal system of equations in parallel (LU decomposition). The system is solved by rearranging the points: grouping the last point of each sub-domain at the end. The reduced system is solved by either the recursive-doubling or gather-and-solve techniques. A test code is provided to check test these functions and their walltimes.

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  1. Ghosh, Debojyoti; Constantinescu, Emil M.; Brown, Jed: Efficient implementation of nonlinear compact schemes on massively parallel platforms (2015)