I can find many qasm examples. How can I run them on different IBMQ devices?
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3 Answers
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This is a example for loading QASM, executing and displaying the result.
from qiskit import QuantumCircuit, Aer, execute
qasm_str = """OPENQASM 2.0;
include "qelib1.inc";
qreg q[2];
creg c[2];
h q[0];
cx q[0],q[1];
measure q -> c;
"""
# From str.
qc = QuantumCircuit.from_qasm_str(qasm_str)
# If you want to read from file, use instead
# qc = QuantumCircuit.from_qasm_file("/path/to/file.qasm")
# You can choose other backend also.
backend = Aer.get_backend("qasm_simulator")
# Execute the circuit and show the result.
job = execute(qc, backend)
result = job.result()
print(result.get_counts())
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The easiest way is to use the QuantumCircuit methods QuantumCircuit.from_qasm_file() or QuantumCircuit.from_qasm_str() depending on if your loading the QASM from a file or Python string, respectively.
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1$\begingroup$ Thanks. You means use QuantumCircuit methods in Jupyter notebook? $\endgroup$ Commented Jan 29, 2020 at 20:12
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$\begingroup$ You can use them anywhere to construct a circuit from QASM code. $\endgroup$ Commented Jan 29, 2020 at 20:12
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from qiskit import *
simulator = Aer.get_backend('qasm_simulator')
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2$\begingroup$ Please provide some explanation, i.e. how the code solve a problem in the question. $\endgroup$ Commented Feb 5, 2020 at 22:51
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$\begingroup$ Shall I link GitHub repository inorder to do tat? $\endgroup$ Commented Feb 6, 2020 at 6:15
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2$\begingroup$ Reddy: It is also possible, but please add some comments, like where to put your code etc. Please take some inspiration from another answers - look for tag Qiskit. $\endgroup$ Commented Feb 6, 2020 at 7:49