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Add GateImplementationsLM::applyGeneratorDoubleExcitation(Minus/Plus)… #512

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merged 22 commits into from
Oct 11, 2023

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vincentmr
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@vincentmr vincentmr commented Oct 10, 2023

… kernels.

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Context:
The LM implementation requires less memory and is faster for large state vectors, and hence it is the default implementation for most operations. LM::GeneratorDoubleExcitation, LM::GeneratorDoubleExcitationMinus, LM::GeneratorDoubleExcitationPlus kernels are missing.

Description of the Change:
Implement LM::GeneratorDoubleExcitation, LM::GeneratorDoubleExcitationMinus, LM::GeneratorDoubleExcitationPlus kernels and set all default kernels to LM.

Benefits:
Lower memory footprint and faster calculations for large state vectors.

Possible Drawbacks:

Related GitHub Issues:

@vincentmr vincentmr force-pushed the sc-47249-implement-doubleexcitation-lm-kernels branch from 7107a75 to c0067fb Compare October 10, 2023 21:06
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codecov bot commented Oct 10, 2023

Codecov Report

All modified lines are covered by tests ✅

Comparison is base (5cb3a67) 99.13% compared to head (5ad3bfe) 99.13%.

Additional details and impacted files
@@           Coverage Diff           @@
##           master     #512   +/-   ##
=======================================
  Coverage   99.13%   99.13%           
=======================================
  Files         143      143           
  Lines       16850    16857    +7     
=======================================
+ Hits        16704    16711    +7     
  Misses        146      146           
Files Coverage Δ
pennylane_lightning/core/_version.py 100.00% <100.00%> (ø)
.../lightning_qubit/gates/AssignKernelMap_Default.cpp 100.00% <ø> (ø)
..._qubit/gates/cpu_kernels/GateImplementationsLM.cpp 100.00% <100.00%> (ø)
..._qubit/gates/cpu_kernels/GateImplementationsLM.hpp 100.00% <100.00%> (ø)

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@vincentmr vincentmr marked this pull request as ready for review October 10, 2023 21:33
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@multiphaseCFD multiphaseCFD left a comment

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Looks good to me! Thanks @vincentmr

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@AmintorDusko AmintorDusko left a comment

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Looks good to me! Let me know if there is any change here.

Base automatically changed from bugfix/LM_multiQubitOp to master October 11, 2023 15:28
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@AmintorDusko AmintorDusko left a comment

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Beautiful! Nice work on that! Double-approved!

@vincentmr vincentmr merged commit c37d79c into master Oct 11, 2023
63 checks passed
@vincentmr vincentmr deleted the sc-47249-implement-doubleexcitation-lm-kernels branch October 11, 2023 17:31
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3 participants