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optimize FidelityQuantumKernel
parameterization
#719
optimize FidelityQuantumKernel
parameterization
#719
Conversation
Can you please measure how faster the implementation becomes with this PR? |
Pull Request Test Coverage Report for Build 7049710944
💛 - Coveralls |
This is the runtime of the respective functions in seconds as benchmarked with
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Thanks, this is interesting. Can you please additionally measure an overall impact on |
With
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So, performance gain is not that large on a decent number of qubits, but still there is.
Co-authored-by: Anton Dekusar <[email protected]>
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Thanks, looks good
* optimize fqk parameterization * Update qiskit_machine_learning/kernels/fidelity_quantum_kernel.py Co-authored-by: Anton Dekusar <[email protected]> * Update qiskit_machine_learning/kernels/fidelity_quantum_kernel.py * remove vstack --------- Co-authored-by: Anton Dekusar <[email protected]>
Summary
This PR optimizes the way
indices
,right_parameters
andleft_parameters
are created in_get_symmetric_parameterization
and_get_parameterization
of theFidelityQuantumKernel
class.Details and comments
The previous version used a heavy amount of dynamic memory allocation which resulted in a very long runtime. This new version runs way faster for bigger instances by not using dynamic memory allocation. I didn't add any additional tests, since this doesn't introduce any new functionality.
I'm happy to incorporate comments and hope this can be merged soon 😄