Class: Solver

Inherits:
Object show all
Defined in:
lib/solvers/solvers.rb

Direct Known Subclasses

Cbc, Glpk, Gurobi, PCbc, PScip, Scip

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(filename, options) ⇒ Solver

Returns a new instance of Solver.

Raises:

  • (StandardError) 


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# File 'lib/solvers/solvers.rb', line 4

def initialize(filename, options)
  @options = options
  @filename = filename
  @outfile = get_output_filename
  raise StandardError.new("Couldn't find solver #{executable}!") if `which #{executable}`.length == 0
  @solver_exists = true
end

Instance Attribute Details

#options ⇒ Object (readonly)

Returns the value of attribute options.



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# File 'lib/solvers/solvers.rb', line 2

def options
  @options
end

#outfile ⇒ Object (readonly)

Returns the value of attribute outfile.



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# File 'lib/solvers/solvers.rb', line 2

def outfile
  @outfile
end

Class Method Details

.exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/solvers/solvers.rb', line 28

def self.exists?
  return `which #{self.executable}`.length != 0
end

Instance Method Details

#executable ⇒ Object 



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# File 'lib/solvers/solvers.rb', line 20

def executable
  self.class.executable
end

#get_output_filename ⇒ Object 



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# File 'lib/solvers/solvers.rb', line 12

def get_output_filename
  "/tmp/rulp-#{Random.rand(0..1000)}.sol"
end

#solver_exists? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/solvers/solvers.rb', line 24

def solver_exists?
  @solver_exists || false
end

#store_results(variables) ⇒ Object 



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# File 'lib/solvers/solvers.rb', line 16

def store_results(variables)
  puts "Not yet implemented"
end