ParallelUtilities.jl

Parallel mapreduce and other helpful functions for HPC, meant primarily for embarassingly parallel operations that often require one to split up a list of tasks into subsections that may be processed on individual cores.

Installation

Install the package using

pkg> add ParallelUtilities
julia> using ParallelUtilities

Quick start

Just replace mapreduce by pmapreduce in your code and things should work the same.

julia> @everywhere f(x) = (sleep(1); x^2); # some expensive calculation

julia> nworkers()
2

julia> @time mapreduce(f, +, 1:10) # Serial
 10.021436 seconds (40 allocations: 1.250 KiB)
385

julia> @time pmapreduce(f, +, 1:10) # Parallel
  5.137051 seconds (863 allocations: 39.531 KiB)
385

Usage

See the documentation for examples and the API.