Memory leak in tfp.math.minimize, reproducible from tutorial notebook

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评估

难度
4/5
预计耗时
3-5 天
新手友好度
35/100
Issue 类型
缺陷
描述清晰度
基本清楚
活跃度
停滞
技术栈
jupyter-notebook, python, tensorflow

调研方向

从链接的“Multiple changepoint detection and Bayesian model selection”教程笔记本开始,通过执行所有单元格,然后从“Unknown number of states”部分重新执行来复现该问题。比较多次运行 tfp.math.minimize 时的内存使用情况,并验证每次运行增加约 20 MB 的现象不再发生。

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描述

Python version: 3.11.6
tensorflow==2.18.0
# via
# -r requirements.in
# tf-keras
tensorflow-probability==0.24.0
# via -r requirements.in
tf-keras==2.18.0
# via -r requirements.in

I am trying to perform an analysis built on the multiple changepoint detection and Bayesian model selection code found in this tutorial notebook: https://www.tensorflow.org/probability/examples/Multiple_changepoint_detection_and_Bayesian_model_selection

In the process of running the analysis for multiple datasets I observed that the memory used increases with each successive analysis, by about 20 MB per run in my code. I confirmed that this occurs with the original tutorial notebook as well to ensure that there is not an error specific to my code. The easiest way to reproduce is to download the notebook, execute all cells, then rerun from the "Unknown number of states" section. I have tried adding tf_keras.backend.clear_session() between each run, deleting all created objects before rerunning, and running garbage collection, but nothing has released the ~20MB of memory that is allocated with each tfp.math.minimize run.

主要语言
Jupyter Notebook
星标
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派生
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30 天内没有已合并 PR

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