Fix: subthreshold dynamics equation of refractory lif #842
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Hi, just to support this, in the Brian2Lava project we have used the same fix and it works well. |
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PhilippPlank
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* Fix: subthreshold dynamics equation of refractory lif * Fix: RefractoryLIF unit test to test the voltage dynamics
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* Fix: subthreshold dynamics equation of refractory lif * Fix: RefractoryLIF unit test to test the voltage dynamics
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* GradedReluVec process and tests. * changed test to use thresh not 0. * removed duplicate docstring line. * Bump tornado from 6.4 to 6.4.1 (#863) Bumps [tornado](https://github.com/tornadoweb/tornado) from 6.4 to 6.4.1. - [Changelog](https://github.com/tornadoweb/tornado/blob/master/docs/releases.rst) - [Commits](tornadoweb/tornado@v6.4.0...v6.4.1) --- updated-dependencies: - dependency-name: tornado dependency-type: indirect ... Signed-off-by: dependabot[bot] <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> * Fix: subthreshold dynamics equation of refractory lif (#842) * Fix: subthreshold dynamics equation of refractory lif * Fix: RefractoryLIF unit test to test the voltage dynamics * Bump urllib3 from 2.2.1 to 2.2.2 (#865) Bumps [urllib3](https://github.com/urllib3/urllib3) from 2.2.1 to 2.2.2. - [Release notes](https://github.com/urllib3/urllib3/releases) - [Changelog](https://github.com/urllib3/urllib3/blob/main/CHANGES.rst) - [Commits](urllib3/urllib3@2.2.1...2.2.2) --- updated-dependencies: - dependency-name: urllib3 dependency-type: indirect ... Signed-off-by: dependabot[bot] <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: PhilippPlank <[email protected]> --------- Signed-off-by: dependabot[bot] <[email protected]> Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com> Co-authored-by: João Gil <[email protected]> Co-authored-by: PhilippPlank <[email protected]> Co-authored-by: Marcus G K Williams <[email protected]>
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Issue Number: #841
Objective of pull request: Fix the
PyLifRefractoryModelFloatvoltage dynamics.Pull request checklist
Your PR fulfills the following requirements:
flakeheaven lint src/lava tests/) and (bandit -r src/lava/.) pass locallypytest) passes locallyPull request type
Please check your PR type:
What is the current behavior?
PyLifRefractoryModelFloatmodel does not update the voltage correctly in its sub-threshold dynamics. The current equation is:Therefore, the voltage of the neurons is updated incorrectly.
What is the new behavior?
so the new behavior uses this new equation.
Does this introduce a breaking change?
Supplemental information
The unit test related to the Refractory model confirmed that the voltage remains at 0 during the refractory state. However, the expected voltage array is incorrect, so it was also modified.
Closes #841