def run():
parser = argparse.ArgumentParser(
description="Run VSVBP heuristics on given instances")
parser.add_argument(
'-f',
type=argparse.FileType('r'),
help="The path to a file containing the bin packing problem to optimize"
)
parser.add_argument('-d',
help="A directory containing (only) files modeling\
bin packing problems to optimize. Optimize all files in the directory."
)
parser.add_argument('-r',
action='store_true',
help="Recursive. If a directory is provided,\
optimize all files in all final subdirectories.")
parser.add_argument('-u',
action='store_true',
help="If activated, use dot product heuristics")
parser.add_argument('-s', type=int, help="Set seed to specified value")
args = parser.parse_args()
if not (args.f or args.d):
parser.error('No action requested, add -f or -d')
if args.f and args.d:
parser.error('Too many actions requested, add only -f or -d')
if args.r and not args.d:
sys.stderr.write("Warning recursive argument was specified but")
sys.stderr.write(" no directory was provided. Argument ignored.\n")
if args.d and not os.path.isdir(args.d):
parser.error('Invalid directory')
optimize.dp = args.u
optimize.seed = args.s
if args.f:
items, tbin = parse(args.f)
opt = len(solver.optimize(items, tbin, args.u, args.s).bins)
template = "{0:50}{1:10}"
st = args.f.name.split('/').pop()
print template.format(st, str(opt))
elif not args.r:
optim_dir(args.d)
else:
optim_rec(args.d)
def optimize(filename, level=0):
fl = open(filename)
items, tbin = parse(fl)
if not items:
fl.close()
return
opt = len(solver.optimize(items, tbin, optimize.dp, optimize.seed).bins)
template = "{0:50}{1:10}"
if level == 0:
st = filename.split('/').pop()
print template.format(st, str(opt))
else:
st = " " * level + "| " + filename.split('/').pop()
print template.format(st, str(opt))
fl.close()
sys.stdout.flush()
def optimize(filename, level=0):
fl = open(filename)
items, tbin = parse(fl)
if not items:
fl.close()
return
opt = len(solver.optimize(items, tbin, optimize.dp, optimize.seed).bins)
template = "{0:50}{1:10}"
if level == 0:
st = filename.split('/').pop()
print template.format(st, str(opt))
else:
st = " "*level+"| "+filename.split('/').pop()
print template.format(st, str(opt))
fl.close()
sys.stdout.flush()
def run():
parser = argparse.ArgumentParser(description="Run VSVBP heuristics on given instances")
parser.add_argument('-f', type=argparse.FileType('r'),
help="The path to a file containing the bin packing problem to optimize")
parser.add_argument('-d', help="A directory containing (only) files modeling\
bin packing problems to optimize. Optimize all files in the directory.")
parser.add_argument('-r', action='store_true', help="Recursive. If a directory is provided,\
optimize all files in all final subdirectories.")
parser.add_argument('-u', action='store_true', help="If activated, use dot product heuristics")
parser.add_argument('-s', type=int, help="Set seed to specified value")
args = parser.parse_args()
if not (args.f or args.d):
parser.error('No action requested, add -f or -d')
if args.f and args.d:
parser.error('Too many actions requested, add only -f or -d')
if args.r and not args.d:
sys.stderr.write("Warning recursive argument was specified but")
sys.stderr.write(" no directory was provided. Argument ignored.\n")
if args.d and not os.path.isdir(args.d):
parser.error('Invalid directory')
optimize.dp = args.u
optimize.seed = args.s
if args.f:
items, tbin = parse(args.f)
opt = len(solver.optimize(items, tbin, args.u, args.s).bins)
template = "{0:50}{1:10}"
st = args.f.name.split('/').pop()
print template.format(st, str(opt))
elif not args.r:
optim_dir(args.d)
else:
optim_rec(args.d)