FEFMM.jl is a Julia 1.0+ compatible reimplementation of the factored Eikonal fast-marching method for accurately computing solutions to the Eikonal equation. The original implementation is at FactoredEikonalFastMarching.jl for <= v0.6 - after talking to the corresponding author, their current position does not allow time for the substantial reworking required for a v1.0 update.
Due to the antecedent package, I’ve used a name that does not follow the current package style guide - if anybody has a suggestion for a more evocative name that does not provoke confusion, I would appreciate it.