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Ecosystem

This package contains a number (currently 5) alternative implementations of a simple agent based simulation. The difference is mostly in the type signature of the World:

  • World{Dict{Int64, Union{Animal{🐑}, Plant{🌿}}}} is a plain Dict of Unions.
  • World{Dict{Int64, Union{Animal{🐑, ♀}, Animal{🐑, ♂}, Plant{🌿}}}} is a dict of unions with additional type parameter in the animal.
  • World{@NamedTuple{Sheep::Dict{Int64, Animal{🐑}}, Grass::Dict{Int64, Plant{🌿}}}} is a tuple of dictionaries where the dictionaries have concrete types.
  • World{@NamedTuple{SheepFemale::Dict{Int64, Animal{🐑, ♀}}, SheepMale::Dict{Int64, Animal{🐑, ♂}}, Grass::Dict{Int64, Plant{🌿}}}} - same as above just with Animal{A,S}.
  • World{Dict{Int64, Agent}} where Agent is a DynamicSumType. Uses the animal with two type parameters Animal{A,S}.

The dict of union approach is the slowest, the named tuples are the fastest (by far - note the units). DynamicSumTypes.jl are 3-5x faster than the dict of union while not making the World type as complicated as it is with the named tuples.

Benchmarks

v1.10 v1.11
ParametricSpeciesDictUnion/find_food 0.242 ± 0.011 ms 0.215 ± 0.01 ms
ParametricSpeciesDictUnion/reproduce 0.562 ± 0.32 ms 0.568 ± 0.36 ms
ParametricSpeciesSexSumType/find_food 0.0502 ± 0.0084 ms 0.0525 ± 0.0023 ms
ParametricSpeciesSexSumType/reproduce 0.116 ± 0.078 ms 0.124 ± 0.081 ms
ParametricSpeciesSexDictUnion/find_food 0.206 ± 0.011 ms 0.214 ± 0.0057 ms
ParametricSpeciesSexDictUnion/reproduce 0.487 ± 0.28 ms 0.457 ± 0.29 ms
ParametricSpeciesNTtuple/find_food 2.75 ± 2.8 μs 2.79 ± 2.9 μs
ParametricSpeciesNTtuple/reproduce 0.103 ± 0.099 ms 0.0938 ± 0.1 ms
ParametricSpeciesSexNTuple/find_food 2.75 ± 2.8 μs 2.71 ± 2.8 μs
ParametricSpeciesSexNTuple/reproduce 0.042 ± 0.001 μs 0.042 ± 0.001 μs

To produce the table above:

make benchpkg
make benchpkgtable