An FMM Poisson solver for RAMSES is extended to adaptive mesh refinement and adaptive time stepping, matching multigrid accuracy while conserving momentum better across coarse-fine interfaces and scaling better in parallel.
Parallel dual tree traversal for the symmetric fast multipole method
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A Scalable Fast Multipole Method Poisson Solver for the RAMSES code: II. Adaptive Mesh Refinement and Adaptive Time Stepping
An FMM Poisson solver for RAMSES is extended to adaptive mesh refinement and adaptive time stepping, matching multigrid accuracy while conserving momentum better across coarse-fine interfaces and scaling better in parallel.