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require 'benchmark'
require 'solve'
require 'solve/gecode_solver'
require File.expand_path("../large_graph_no_solution", __FILE__)
require File.expand_path("../opscode_ci_graph", __FILE__)
PROBLEM = OpscodeCiGraph
#PROBLEM = LargeGraphNoSolution
N = 100
def demands
PROBLEM::DEMANDS
end
def artifacts
PROBLEM::ARTIFACTS
end
require 'pp'
def create_graph
graph = Solve::Graph.new
artifacts.each do |name, all_artifact_versions|
all_artifact_versions.each do |artifact|
graph.artifact(name, artifact[:version])
artifact[:dependencies].each do |dep|
dep_name, dep_constraint = dep
graph.artifact(name, artifact[:version])
.depends(dep_name, dep_constraint)
end
end
end
graph
end
STATIC_GRAPH = create_graph
def solve_gecode
Solve::GecodeSolver.new(STATIC_GRAPH, demands).resolve({})
rescue Solve::Errors::NoSolutionError => e
# Uncomment to look at the error messages. Probably only useful if N == 1
#puts e
e
end
def solve_ruby
Solve::RubySolver.new(STATIC_GRAPH, demands).resolve({})
rescue Solve::Errors::NoSolutionError => e
# Uncomment to look at the error messages. Probably only useful if N == 1
#puts e
e
end
Benchmark.bm(12) do |x|
x.report("Create graph") { N.times { create_graph } }
x.report("Solve Gecode") { N.times { solve_gecode } }
x.report("Solve Ruby") { N.times { solve_ruby } }
end
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