def approximate(self, gap, nof_sol=3, rel_tol=1e-05, abs_tol=0.0001):
sols = self.solve_grid(nof_sol=nof_sol)
#filter non pareto points
sols = ParetoFilter.filter(sorted(sols),
rel_tol=rel_tol,
abs_tol=abs_tol)
if self.verbose:
print "Filtered pareto points"
for s in sols:
print s
print "\n", "Starting rectangle refinement\n"
curr_gap = HyperVolume.calc_hypervol_gap(sols,
[sols[0].objs, sols[-1].objs],
[])
if curr_gap < gap:
return sols
self.approximate_rectangle(gap,
init_recs=sols,
rel_tol=1e-05,
abs_tol=0.0001)
for _ in xrange(nof_sol):
self.task_q.put(("DONE", None, None, None, None))
self._manager.shutdown()
return self.solutions
def solve(self, nof_sol=3, rel_tol=1e-05, abs_tol=0.0001):
sols = self.solve_grid(nof_sol=nof_sol)
#filter non pareto points
sols = sorted(ParetoFilter.filter(sols,rel_tol=rel_tol, abs_tol=abs_tol))
if self.verbose:
print "Filtered pareto points"
for s in sols:
print s
#pcl.dump(sols, open(".".join(args.output.split(".")[:-1])+"_temp.pcl", "w"))
self.solve_rectangle(init_recs=sols,rel_tol=rel_tol, abs_tol=abs_tol)
for _ in xrange(nof_sol):
self.task_q.put(("DONE",None,None,None,None))
self._manager.shutdown()
return self.solutions
def solve(self, nof_sol=3, rel_tol=1e-05, abs_tol=0.0001):
sols = self.solve_grid(nof_sol=nof_sol)
#filter non pareto points
sols = sorted(ParetoFilter.filter(sols,rel_tol=rel_tol, abs_tol=abs_tol))
if self.verbose:
print "Filtered pareto points"
for s in sols:
print s
#pcl.dump(sols, open(".".join(args.output.split(".")[:-1])+"_temp.pcl", "w"))
self.solve_rectangle(init_recs=sols,rel_tol=rel_tol, abs_tol=abs_tol)
for _ in xrange(nof_sol):
self.task_q.put(("DONE",None,None,None,None))
self._manager.shutdown()
return self.solutions
def approximate(self, gap, nof_sol=3, rel_tol=1e-05, abs_tol=0.0001):
sols = self.solve_grid(nof_sol=nof_sol)
#filter non pareto points
sols = ParetoFilter.filter(sorted(sols),rel_tol=rel_tol, abs_tol=abs_tol)
if self.verbose:
print "Filtered pareto points"
for s in sols:
print s
print "\n","Starting rectangle refinement\n"
curr_gap = HyperVolume.calc_hypervol_gap(sols, [sols[0].objs, sols[-1].objs], [])
if curr_gap < gap:
return sols
self.approximate_rectangle(gap, init_recs=sols, rel_tol=1e-05, abs_tol=0.0001)
for _ in xrange(nof_sol):
self.task_q.put(("DONE",None,None,None,None))
self._manager.shutdown()
return self.solutions
required=False,
help="Reinitialize with partial solution")
parser.add_argument('--verbose','-v',
default=0,
type=int,
required=False,
help="Verbosity (default 0)")
args = parser.parse_args()
manager = RectangleEpsilonGridManager(port=args.port, authkey=args.key, output=args.output, verbose=args.verbose)
if args.resolve:
f = open(args.resolve, "r")
sol = sorted(pcl.load(f))
s = time.time()
sols=manager.approximate_rectangle(args.approximate, init_recs=sol, nof_sol=args.worker,
rel_tol=args.relTol, abs_tol=args.absTol)
manager._manager.shutdown()
e=time.time()
else:
s = time.time()
sols = manager.solve(nof_sol=args.worker,rel_tol=args.relTol, abs_tol=args.absTol)
#sols = manager.approximate(args.approximate, nof_sol=args.worker)
#sols = manager.solve_rectangle(rel_tol=args.relTol, abs_tol=args.absTol)
e= time.time()
filtered_sols = ParetoFilter.filter(sols)
print "Solution time ", e-s
for s in sols:
print s
print "NOF: ",len(sols), len(filtered_sols)
pcl.dump(sols, open(args.output, "w"))
parser.add_argument('--resolve','-r',
required=False,
help="Reinitialize with partial solution")
parser.add_argument('--verbose','-v',
default=0,
type=int,
required=False,
help="Verbosity (default 0)")
args = parser.parse_args()
manager = RectangleEpsilonGridManager(port=args.port, authkey=args.key, output=args.output, verbose=args.verbose)
if args.resolve:
f = open(args.resolve, "r")
sol = sorted(pcl.load(f))
s = time.time()
sols=manager.approximate_rectangle(args.approximate, init_recs=sol, nof_sol=args.worker,
rel_tol=args.relTol, abs_tol=args.absTol)
manager._manager.shutdown()
e=time.time()
else:
s = time.time()
sols = manager.solve(nof_sol=args.worker,rel_tol=args.relTol, abs_tol=args.absTol)
#sols = manager.approximate(args.approximate, nof_sol=args.worker)
#sols = manager.solve_rectangle(rel_tol=args.relTol, abs_tol=args.absTol)
e= time.time()
filtered_sols = ParetoFilter.filter(sols)
print "Solution time ", e-s
for s in sols:
print s
print "NOF: ",len(sols), len(filtered_sols)
#pcl.dump(sols, open(args.output, "w"))