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119 linhas
3.9 KiB
119 linhas
3.9 KiB
#! /usr/bin/env python
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import sys
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from optparse import OptionParser
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import random
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parser = OptionParser()
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parser.add_option('-s', '--seed', default=0, help='the random seed', action='store', type='int', dest='seed')
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parser.add_option('-j', '--jobs', default=3, help='number of jobs in the system', action='store', type='int', dest='jobs')
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parser.add_option('-l', '--jlist', default='', help='instead of random jobs, provide a comma-separated list of run times and ticket values (e.g., 10:100,20:100 would have two jobs with run-times of 10 and 20, each with 100 tickets)', action='store', type='string', dest='jlist')
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parser.add_option('-m', '--maxlen', default=10, help='max length of job', action='store', type='int', dest='maxlen')
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parser.add_option('-T', '--maxticket', default=100, help='maximum ticket value, if randomly assigned', action='store', type='int', dest='maxticket')
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parser.add_option('-q', '--quantum', default=1, help='length of time slice', action='store', type='int', dest='quantum')
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parser.add_option('-c', '--compute', help='compute answers for me', action='store_true', default=False, dest='solve')
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(options, args) = parser.parse_args()
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random.seed(options.seed)
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print 'ARG jlist', options.jlist
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print 'ARG jobs', options.jobs
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print 'ARG maxlen', options.maxlen
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print 'ARG maxticket', options.maxticket
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print 'ARG quantum', options.quantum
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print 'ARG seed', options.seed
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print ''
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print 'Here is the job list, with the run time of each job: '
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import operator
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tickTotal = 0
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runTotal = 0
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joblist = []
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if options.jlist == '':
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for jobnum in range(0,options.jobs):
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runtime = int(options.maxlen * random.random())
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tickets = int(options.maxticket * random.random())
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runTotal += runtime
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tickTotal += tickets
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joblist.append([jobnum, runtime, tickets])
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print ' Job %d ( length = %d, tickets = %d )' % (jobnum, runtime, tickets)
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else:
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jobnum = 0
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for entry in options.jlist.split(','):
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(runtime, tickets) = entry.split(':')
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joblist.append([jobnum, int(runtime), int(tickets)])
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runTotal += int(runtime)
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tickTotal += int(tickets)
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jobnum += 1
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for job in joblist:
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print ' Job %d ( length = %d, tickets = %d )' % (job[0], job[1], job[2])
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print '\n'
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if options.solve == False:
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print 'Here is the set of random numbers you will need (at most):'
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for i in range(runTotal):
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r = int(random.random() * 1000001)
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print 'Random', r
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if options.solve == True:
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print '** Solutions **\n'
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jobs = len(joblist)
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clock = 0
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for i in range(runTotal):
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r = int(random.random() * 1000001)
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winner = int(r % tickTotal)
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current = 0
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for (job, runtime, tickets) in joblist:
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current += tickets
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if current > winner:
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(wjob, wrun, wtix) = (job, runtime, tickets)
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break
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print 'Random', r, '-> Winning ticket %d (of %d) -> Run %d' % (winner, tickTotal, wjob)
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# print 'Winning ticket %d (of %d) -> Run %d' % (winner, tickTotal, wjob)
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print ' Jobs:',
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for (job, runtime, tickets) in joblist:
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if wjob == job:
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wstr = '*'
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else:
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wstr = ' '
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if runtime > 0:
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tstr = tickets
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else:
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tstr = '---'
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print ' (%s job:%d timeleft:%d tix:%s ) ' % (wstr, job, runtime, tstr),
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print ''
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# now do the accounting
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if wrun >= options.quantum:
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wrun -= options.quantum
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else:
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wrun = 0
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clock += options.quantum
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# job completed!
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if wrun == 0:
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print '--> JOB %d DONE at time %d' % (wjob, clock)
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tickTotal -= wtix
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wtix = 0
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jobs -= 1
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# update job list
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joblist[wjob] = (wjob, wrun, wtix)
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if jobs == 0:
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print ''
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break
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