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Merged
merged 3 commits into from
Jul 1, 2024
Merged

fix(polys): use delayed import for galois_resolvents #26755

merged 3 commits into from
Jul 1, 2024

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oscarbenjamin
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The galois_resolvents.py file causes parsing problems for some builds of CPython e.g. debug builds as noted in gh-26692.

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Fixes gh-26692

Brief description of what is fixed or changed

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@oscarbenjamin
fix(polys): use delayed import for galois_resolvents
0519499 
The galois_resolvents.py file causes parsing problems for some builds of
CPython e.g. debug builds as noted in sympygh-26692.
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The galois_resolvents.py file causes parsing problems for some builds of CPython e.g. debug builds as noted in gh-26692.

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Fixes gh-26692

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<!-- BEGIN RELEASE NOTES -->
* polys
   * The galois_resolvents.py file is now only imported when needed which prevents hitting the RecursionLimit during `import sympy` under debug builds of CPython. Fixes gh-26692.
<!-- END RELEASE NOTES -->

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@oscarbenjamin oscarbenjamin added this to the SymPy 1.13 milestone Jul 1, 2024
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github-actions bot commented Jul 1, 2024

Benchmark results from GitHub Actions

Lower numbers are good, higher numbers are bad. A ratio less than 1
means a speed up and greater than 1 means a slowdown. Green lines
beginning with + are slowdowns (the PR is slower then master or
master is slower than the previous release). Red lines beginning
with - are speedups.

Significantly changed benchmark results (PR vs master)



Significantly changed benchmark results (master vs previous release)


| Change   | Before [a36a8b23] <sympy-1.12.1^0>   | After [040dbb31]    |   Ratio | Benchmark (Parameter)                                                |
|----------|--------------------------------------|---------------------|---------|----------------------------------------------------------------------|
| -        | 68.3±0.8ms                           | 44.4±0.2ms          |    0.65 | integrate.TimeIntegrationRisch02.time_doit(10)                       |
| -        | 70.3±0.3ms                           | 43.3±0.2ms          |    0.62 | integrate.TimeIntegrationRisch02.time_doit_risch(10)                 |
| +        | 19.2±0.4μs                           | 30.8±8μs            |    1.61 | integrate.TimeIntegrationRisch03.time_doit(1)                        |
| -        | 5.34±0.07ms                          | 2.84±0.03ms         |    0.53 | logic.LogicSuite.time_load_file                                      |
| -        | 71.8±0.5ms                           | 28.6±0.3ms          |    0.4  | polys.TimeGCD_GaussInt.time_op(1, 'dense')                           |
| -        | 25.6±0.2ms                           | 17.0±0.2ms          |    0.66 | polys.TimeGCD_GaussInt.time_op(1, 'expr')                            |
| -        | 73.6±0.6ms                           | 28.9±0.2ms          |    0.39 | polys.TimeGCD_GaussInt.time_op(1, 'sparse')                          |
| -        | 254±1ms                              | 125±0.3ms           |    0.49 | polys.TimeGCD_GaussInt.time_op(2, 'dense')                           |
| -        | 252±2ms                              | 125±0.3ms           |    0.5  | polys.TimeGCD_GaussInt.time_op(2, 'sparse')                          |
| -        | 652±4ms                              | 374±1ms             |    0.57 | polys.TimeGCD_GaussInt.time_op(3, 'dense')                           |
| -        | 652±5ms                              | 371±2ms             |    0.57 | polys.TimeGCD_GaussInt.time_op(3, 'sparse')                          |
| -        | 487±3μs                              | 286±2μs             |    0.59 | polys.TimeGCD_LinearDenseQuadraticGCD.time_op(1, 'dense')            |
| -        | 1.78±0.03ms                          | 1.07±0.01ms         |    0.6  | polys.TimeGCD_LinearDenseQuadraticGCD.time_op(2, 'dense')            |
| -        | 5.79±0.05ms                          | 3.07±0.03ms         |    0.53 | polys.TimeGCD_LinearDenseQuadraticGCD.time_op(3, 'dense')            |
| -        | 449±3μs                              | 232±2μs             |    0.52 | polys.TimeGCD_QuadraticNonMonicGCD.time_op(1, 'dense')               |
| -        | 1.46±0.01ms                          | 683±6μs             |    0.47 | polys.TimeGCD_QuadraticNonMonicGCD.time_op(2, 'dense')               |
| -        | 4.83±0.05ms                          | 1.67±0.01ms         |    0.35 | polys.TimeGCD_QuadraticNonMonicGCD.time_op(3, 'dense')               |
| -        | 371±2μs                              | 205±1μs             |    0.55 | polys.TimeGCD_SparseGCDHighDegree.time_op(1, 'dense')                |
| -        | 2.46±0.01ms                          | 1.25±0ms            |    0.51 | polys.TimeGCD_SparseGCDHighDegree.time_op(3, 'dense')                |
| -        | 10.00±0.04ms                         | 4.32±0.01ms         |    0.43 | polys.TimeGCD_SparseGCDHighDegree.time_op(5, 'dense')                |
| -        | 360±1μs                              | 170±1μs             |    0.47 | polys.TimeGCD_SparseNonMonicQuadratic.time_op(1, 'dense')            |
| -        | 2.50±0.01ms                          | 911±8μs             |    0.36 | polys.TimeGCD_SparseNonMonicQuadratic.time_op(3, 'dense')            |
| -        | 9.48±0.03ms                          | 2.63±0.03ms         |    0.28 | polys.TimeGCD_SparseNonMonicQuadratic.time_op(5, 'dense')            |
| -        | 1.02±0.01ms                          | 427±1μs             |    0.42 | polys.TimePREM_LinearDenseQuadraticGCD.time_op(3, 'dense')           |
| -        | 1.74±0.01ms                          | 506±2μs             |    0.29 | polys.TimePREM_LinearDenseQuadraticGCD.time_op(3, 'sparse')          |
| -        | 5.82±0.03ms                          | 1.81±0.01ms         |    0.31 | polys.TimePREM_LinearDenseQuadraticGCD.time_op(5, 'dense')           |
| -        | 8.37±0.04ms                          | 1.50±0.01ms         |    0.18 | polys.TimePREM_LinearDenseQuadraticGCD.time_op(5, 'sparse')          |
| -        | 285±2μs                              | 64.7±0.9μs          |    0.23 | polys.TimePREM_QuadraticNonMonicGCD.time_op(1, 'sparse')             |
| -        | 3.49±0.03ms                          | 394±4μs             |    0.11 | polys.TimePREM_QuadraticNonMonicGCD.time_op(3, 'dense')              |
| -        | 3.94±0.03ms                          | 282±0.7μs           |    0.07 | polys.TimePREM_QuadraticNonMonicGCD.time_op(3, 'sparse')             |
| -        | 7.04±0.05ms                          | 1.27±0.01ms         |    0.18 | polys.TimePREM_QuadraticNonMonicGCD.time_op(5, 'dense')              |
| -        | 8.76±0.1ms                           | 844±4μs             |    0.1  | polys.TimePREM_QuadraticNonMonicGCD.time_op(5, 'sparse')             |
| -        | 5.04±0.04ms                          | 2.97±0.01ms         |    0.59 | polys.TimeSUBRESULTANTS_LinearDenseQuadraticGCD.time_op(2, 'sparse') |
| -        | 12.0±0.04ms                          | 6.70±0.04ms         |    0.56 | polys.TimeSUBRESULTANTS_LinearDenseQuadraticGCD.time_op(3, 'dense')  |
| -        | 22.5±0.2ms                           | 9.02±0.02ms         |    0.4  | polys.TimeSUBRESULTANTS_LinearDenseQuadraticGCD.time_op(3, 'sparse') |
| -        | 5.21±0.02ms                          | 868±5μs             |    0.17 | polys.TimeSUBRESULTANTS_QuadraticNonMonicGCD.time_op(1, 'sparse')    |
| -        | 12.7±0.1ms                           | 7.08±0.06ms         |    0.56 | polys.TimeSUBRESULTANTS_QuadraticNonMonicGCD.time_op(2, 'sparse')    |
| -        | 102±0.8ms                            | 26.1±0.05ms         |    0.25 | polys.TimeSUBRESULTANTS_QuadraticNonMonicGCD.time_op(3, 'dense')     |
| -        | 166±0.6ms                            | 54.3±0.3ms          |    0.33 | polys.TimeSUBRESULTANTS_QuadraticNonMonicGCD.time_op(3, 'sparse')    |
| -        | 173±0.8μs                            | 114±0.6μs           |    0.66 | polys.TimeSUBRESULTANTS_SparseGCDHighDegree.time_op(1, 'dense')      |
| -        | 361±2μs                              | 218±0.3μs           |    0.6  | polys.TimeSUBRESULTANTS_SparseGCDHighDegree.time_op(1, 'sparse')     |
| -        | 4.24±0.02ms                          | 861±7μs             |    0.2  | polys.TimeSUBRESULTANTS_SparseGCDHighDegree.time_op(3, 'dense')      |
| -        | 5.23±0.07ms                          | 387±2μs             |    0.07 | polys.TimeSUBRESULTANTS_SparseGCDHighDegree.time_op(3, 'sparse')     |
| -        | 20.6±0.1ms                           | 2.84±0.01ms         |    0.14 | polys.TimeSUBRESULTANTS_SparseGCDHighDegree.time_op(5, 'dense')      |
| -        | 22.6±0.2ms                           | 634±2μs             |    0.03 | polys.TimeSUBRESULTANTS_SparseGCDHighDegree.time_op(5, 'sparse')     |
| -        | 480±1μs                              | 137±0.7μs           |    0.29 | polys.TimeSUBRESULTANTS_SparseNonMonicQuadratic.time_op(1, 'sparse') |
| -        | 4.72±0.04ms                          | 616±8μs             |    0.13 | polys.TimeSUBRESULTANTS_SparseNonMonicQuadratic.time_op(3, 'dense')  |
| -        | 5.27±0.07ms                          | 139±0.8μs           |    0.03 | polys.TimeSUBRESULTANTS_SparseNonMonicQuadratic.time_op(3, 'sparse') |
| -        | 13.2±0.06ms                          | 1.33±0ms            |    0.1  | polys.TimeSUBRESULTANTS_SparseNonMonicQuadratic.time_op(5, 'dense')  |
| -        | 13.9±0.09ms                          | 144±0.5μs           |    0.01 | polys.TimeSUBRESULTANTS_SparseNonMonicQuadratic.time_op(5, 'sparse') |
| -        | 133±0.4μs                            | 73.8±0.3μs          |    0.56 | solve.TimeMatrixOperations.time_rref(3, 0)                           |
| -        | 246±0.9μs                            | 88.7±0.9μs          |    0.36 | solve.TimeMatrixOperations.time_rref(4, 0)                           |
| -        | 24.3±0.04ms                          | 10.2±0.02ms         |    0.42 | solve.TimeSolveLinSys189x49.time_solve_lin_sys                       |
| -        | 28.6±0.2ms                           | 15.3±0.09ms         |    0.53 | solve.TimeSparseSystem.time_linsolve_Aaug(20)                        |
| -        | 55.9±0.4ms                           | 24.8±0.1ms          |    0.44 | solve.TimeSparseSystem.time_linsolve_Aaug(30)                        |
| -        | 28.6±0.3ms                           | 15.2±0.3ms          |    0.53 | solve.TimeSparseSystem.time_linsolve_Ab(20)                          |
| -        | 55.3±0.5ms                           | 24.4±0.1ms          |    0.44 | solve.TimeSparseSystem.time_linsolve_Ab(30)                          |



Full benchmark results can be found as artifacts in GitHub Actions

(click on checks at the top of the PR).

      		
    

  





        


            

            
            

              
            

        

      


      

            
  
  

    
  
    
    

  

  

  


    












      

  
          
 
  

    
  

  



        @oscarbenjamin
  oscarbenjamin



        merged commit 866f968
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    Jul 1, 2024

  







  

  
  

  
      @oscarbenjamin
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    deleted the
    
      
        pr_galois_resolvents
    
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    July 1, 2024 10:39    
    













  
  

    

      

  




      


    


    

      

        
      

  
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