LeapHybridSampler multiple samples

• 

  Tanjid I  (Report)

  August 10, 2022 20:11

  Hi Cristian,

  Thank you for reaching out.  The problem upload time is not charged, however, it's possible to bypass the problem upload. Please look at the following example: 

  # This uses the underlying dwave-cloud-client infrastructure to bypass 
  # the problem upload. 
  
  import dimod 
  from dwave.system import LeapHybridSampler 
  
  num_submissions = 5 
  time_limit = 5 
  
  bqm = dimod.BQM({0: 362781.0}, {}, 0.0, 'BINARY') 
  
  sampler = LeapHybridSampler() 
  
  # upload the problem and get the resulting id from the returned Future 
  problem_id = sampler.solver.upload_problem(bqm.to_file()).result() 
  
  # submit the id multiple times with the same timelimit 
  samplesets = [] 
  for _ in range(num_submissions): 
      future = sampler.solver.sample_bqm(problem_id, time_limit=time_limit) 
      samplesets.append(future.sampleset)  # nonblocking 
  
  # combine all of the returned samplesets into one (blocking) 
  combined_sampleset = dimod.concatenate(samplesets) 
  
  # get the best feasible 
  best_sampleset = combined_sampleset.lowest() 
  
  print(best_sampleset)

   
  Please let us know if you have any questions. 
  
  

  Best Regards,
  Tanjid

   

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