QiskitInterface.py

# Copyright (c) Microsoft Corporation. All rights reserved.
# Licensed under the MIT License.
from IBMQuantumExperience import IBMQuantumExperience
import json
import time
import sys
print("Usage: python3 QiskitInterface.py <Key> <Backend> <Shots>")
apikey = sys.argv[1]
backend = sys.argv[2]
shots = sys.argv[3]
timeout = 60
sleeptime = 10

api = IBMQuantumExperience(apikey)
print("Qiskit API Interface")
with open('input.txt', 'r') as myfile:
  qasm = myfile.read()
print("QASM FILE READ")
print(qasm)
print("SENDING TO IBM Quantum Experience")
print(" IBMQ AT IBM Quantum Experience:")

qasms = [{ 'qasm': qasm}]
job = api.run_job(qasms, backend=backend, shots=shots, max_credits=3)
print(job)
if 'id' in job:
    jobid = job['id']
    print(" JobID:", jobid);
    status = job['status']
    while status == 'RUNNING' and timeout > 0:
        time.sleep(sleeptime)
        timeout -= sleeptime
        job = api.get_job(jobid)
        status = job['status']
        if 'infoQueue' in job and 'position' in job['infoQueue']:
            position = job['infoQueue']['position']
            print(" Position in Queue", position)
            if 'estimatedTimeInQueue' in job['infoQueue']:
                timeQueue = job['infoQueue']['estimatedTimeInQueue']
            else:
                timeQueue = position * 60 #Guestimate on minute per job
            print(" Position in queue:", position)
            print(" Expected time (minutes) in queue left:", timeQueue/60)
    if timeout > 0:
        id = job['qasms'][0]['executionId']
        result = api.get_result_from_execution(id)
        print(result)
        with open('output.txt', 'w') as resultFile:
           resultFile.write(str(result['measure']))
        sys.exit()
print(" Result later than timeout. Going to failover.")
print(" SIMULATOR AT IBM:")
ex = api.run_experiment(qasm, backend='ibmqx_qasm_simulator', shots=shots, name='QSharpRun SIM', timeout=15)
print("DONE")
print(ex)
with open('output.txt', 'w') as resultFile:
   resultFile.write(str(ex['result']))