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very slow and memory problems after updating to v2

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#549 4 comentarios 0 reacciones 0 asignados Ver en GitHub

Nadie ha tomado este issue todavía.

Evaluación

Dificultad
4/5
Tiempo estimado
3-5 días
Aptitud para principiantes
30/100
Tipo de issue
Error
Claridad
Necesita aclaración
Estado de actividad
Estancado
Stack tecnológico
julia, python
Área
tooling

Línea de trabajo

Comienza con las llamadas a solveset en src/speciation_code.jl en las líneas 183 y 193, y luego reproduce el bucle de 14 iteraciones comparando los entornos v1 y v2. Usa las trazas de ReadOnlyMemoryError y PyError para determinar si la regresión está en SymPy.jl, PyCall o el solver de SymPy; el resultado debe incluir un caso mínimo reproducible y un límite de fallo confirmado.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

My package was build using v1.0 but after updating to v2.0 the same code has becoming extremely slow and causing memory errors. I have a for loop with 14 iterations where I do symbolic calculations. After updating to v2, Julia exists abruptly after a few iterations, even though I tested that I can manually run each iteration individually. It would appear that SymPy.solveset in the new version cannot handle large equations like the old one. I'm not even sure what the problem is because the loop constantly causes Julia breakdown.

These are some of the errors I got:

1-element ExceptionStack:
ReadOnlyMemoryError()
Stacktrace:
  [1] macro expansion
    @ C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\exception.jl:108 [inlined]
  [2] #107
    @ C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:43 [inlined]
  [3] disable_sigint
    @ .\c.jl:473 [inlined]
  [4] __pycall!
    @ C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:42 [inlined]
  [5] _pycall!(ret::PyCall.PyObject, o::PyCall.PyObject, args::Tuple{PyCall.PyObject, PyCall.PyObject}, nargs::Int64, kw::Ptr{Nothing})
    @ PyCall C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:29
  [6] _pycall!(ret::PyCall.PyObject, o::PyCall.PyObject, args::Tuple{PyCall.PyObject, PyCall.PyObject}, kwargs::@Kwargs{})
    @ PyCall C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:11
  [7] (::PyCall.PyObject)(::PyCall.PyObject, ::Vararg{Any}; kwargs::@Kwargs{})
    @ PyCall C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:86
  [8] solveset(x::SymPyCore.Sym{PyCall.PyObject}, args::SymPyCore.Sym{PyCall.PyObject}; kwargs::@Kwargs{})
    @ SymPy C:\Users\pkudu\.julia\packages\SymPyCore\tOpxk\src\SymPy\gen_methods_sympy.jl:33
  [9] speciation_model(substance_spec::String, speciation::DataFrame, adsorption::DataFrame)
    @ Main c:\users\pkudu\documents\sedtrace\src\speciation_code.jl:183
 [10] top-level scope
    @ REPL[374]:1
 [11] eval
    @ .\boot.jl:385 [inlined]
 [12] eval
    @ .\Base.jl:88 [inlined]
 [13] repleval(m::Module, code::Expr, ::String)
    @ VSCodeServer c:\Users\pkudu\.vscode\extensions\julialang.language-julia-1.79.2\scripts\packages\VSCodeServer\src\repl.jl:229
 [14] (::VSCodeServer.var"#112#114"{Module, Expr, REPL.LineEditREPL, REPL.LineEdit.Prompt})()
    @ VSCodeServer c:\Users\pkudu\.vscode\extensions\julialang.language-julia-1.79.2\scripts\packages\VSCodeServer\src\repl.jl:192
 [15] with_logstate(f::Function, logstate::Any)
    @ Base.CoreLogging .\logging.jl:515
 [16] with_logger
    @ .\logging.jl:627 [inlined]
 [17] (::VSCodeServer.var"#111#113"{Module, Expr, REPL.LineEditREPL, REPL.LineEdit.Prompt})()
    @ VSCodeServer c:\Users\pkudu\.vscode\extensions\julialang.language-julia-1.79.2\scripts\packages\VSCodeServer\src\repl.jl:193
 [18] #invokelatest#2
    @ .\essentials.jl:892 [inlined]
 [19] invokelatest(::Any)
    @ Base .\essentials.jl:889
 [20] (::VSCodeServer.var"#64#65")()
    @ VSCodeServer c:\Users\pkudu\.vscode\extensions\julialang.language-julia-1.79.2\scripts\packages\VSCodeServer\src\eval.jl:34

or

1-element ExceptionStack:
PyError ($(Expr(:escape, :(ccall(#= C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:43 =# @pysym(:PyObject_Call), PyPtr, (PyPtr, PyPtr, PyPtr), o, pyargsptr, kw))))) <class 'TypeError'>
TypeError("unhashable type: '��ɚ�\x01'")
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\solvers\solveset.py", line 2252, in solveset
    rv = solveset(f.xreplace({symbol: x}), x, domain)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\solvers\solveset.py", line 2276, in solveset
    return _solveset(f, symbol, domain, _check=True)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\solvers\solveset.py", line 1112, in _solveset
    result_rational = _solve_as_rational(equation, symbol, domain)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\solvers\solveset.py", line 590, in _solve_as_rational
    return _solve_as_poly(g, symbol, domain)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\solvers\solveset.py", line 801, in _solve_as_poly
    solns = roots(f, symbol, cubics=True, quartics=True,
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\polyroots.py", line 1089, in roots
    _update_dict(result, zeros, roots_linear(f)[0], 1)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\polyroots.py", line 43, in roots_linear
    r = factor(r)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\polytools.py", line 6542, in factor
    return _generic_factor(f, gens, args, method='factor')
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\polytools.py", line 6223, in _generic_factor
    return _symbolic_factor(sympify(expr), opt, method)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\polytools.py", line 6163, in _symbolic_factor
    coeff, factors = _symbolic_factor_list(together(expr, fraction=opt['fraction']), opt, method)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\polytools.py", line 6128, in _symbolic_factor_list
    _coeff, _factors = func()
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\polytools.py", line 3350, in factor_list
    coeff, factors = f.rep.factor_list()
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\polyclasses.py", line 823, in factor_list
    coeff, factors = dmp_factor_list(f.rep, f.lev, f.dom)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\factortools.py", line 1423, in dmp_factor_list
    coeff, factors = dmp_zz_factor(f, v, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\factortools.py", line 1159, in dmp_zz_factor
    g = dmp_sqf_part(g, u, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\sqfreetools.py", line 256, in dmp_sqf_part
    gcd = dmp_gcd(gcd, dmp_diff_in(f, 1, i, u, K), u, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\euclidtools.py", line 1625, in dmp_gcd
    return dmp_inner_gcd(f, g, u, K)[0]
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\euclidtools.py", line 1584, in dmp_inner_gcd
    h, cff, cfg = _dmp_inner_gcd(f, g, u, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\euclidtools.py", line 1553, in _dmp_inner_gcd
    return dmp_zz_heu_gcd(f, g, u, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\euclidtools.py", line 1342, in dmp_zz_heu_gcd
    cfg_, r = dmp_div(g, h, u, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\densearith.py", line 1629, in dmp_div
    return dmp_rr_div(f, g, u, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\densearith.py", line 1397, in dmp_rr_div
    h = dmp_mul_term(g, c, j, u, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\densearith.py", line 184, in dmp_mul_term
    return [ dmp_mul(cf, c, v, K) for cf in f ] + dmp_zeros(i, v, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\densearith.py", line 184, in <listcomp>
    return [ dmp_mul(cf, c, v, K) for cf in f ] + dmp_zeros(i, v, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\densearith.py", line 828, in dmp_mul
    coeff = dmp_add(coeff, dmp_mul(f[j], g[i - j], v, K), v, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\densearith.py", line 828, in dmp_mul
    coeff = dmp_add(coeff, dmp_mul(f[j], g[i - j], v, K), v, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\densearith.py", line 828, in dmp_mul
    coeff = dmp_add(coeff, dmp_mul(f[j], g[i - j], v, K), v, K)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\polys\densearith.py", line 567, in dmp_add
    if df < 0:
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\core\decorators.py", line 231, in _func
    other = sympify(other, strict=True)
  File "C:\Users\pkudu\.julia\conda\3\x86_64\lib\site-packages\sympy\core\sympify.py", line 383, in sympify
    return conv(a)

Stacktrace:
  [1] pyerr_check
    @ C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\exception.jl:75 [inlined]
  [2] pyerr_check
    @ C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\exception.jl:79 [inlined]
  [3] _handle_error(msg::String)
    @ PyCall C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\exception.jl:96
  [4] macro expansion
    @ C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\exception.jl:110 [inlined]
  [5] #107
    @ C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:43 [inlined]
  [6] disable_sigint
    @ .\c.jl:473 [inlined]
  [7] __pycall!
    @ C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:42 [inlined]
  [8] _pycall!(ret::PyCall.PyObject, o::PyCall.PyObject, args::Tuple{PyCall.PyObject, PyCall.PyObject}, nargs::Int64, kw::Ptr{Nothing})
    @ PyCall C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:29
  [9] _pycall!(ret::PyCall.PyObject, o::PyCall.PyObject, args::Tuple{PyCall.PyObject, PyCall.PyObject}, kwargs::@Kwargs{})
    @ PyCall C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:11
 [10] (::PyCall.PyObject)(::PyCall.PyObject, ::Vararg{PyCall.PyObject}; kwargs::@Kwargs{})
    @ PyCall C:\Users\pkudu\.julia\packages\PyCall\1gn3u\src\pyfncall.jl:86
 [11] solveset(x::SymPyCore.Sym{PyCall.PyObject}, args::SymPyCore.Sym{PyCall.PyObject}; kwargs::@Kwargs{})
    @ SymPy C:\Users\pkudu\.julia\packages\SymPyCore\tOpxk\src\SymPy\gen_methods_sympy.jl:33
 [12] speciation_model(parameters::DataFrame, substance_spec::String, speciation::DataFrame, adsorption::DataFrame)
    @ Main c:\users\pkudu\documents\sedtrace\src\speciation_code.jl:193
 [13] top-level scope
    @ .\REPL[349]:2
 [14] eval
    @ .\boot.jl:385 [inlined]
 [15] eval
    @ .\Base.jl:88 [inlined]
 [16] repleval(m::Module, code::Expr, ::String)
    @ VSCodeServer c:\Users\pkudu\.vscode\extensions\julialang.language-julia-1.79.2\scripts\packages\VSCodeServer\src\repl.jl:229
 [17] (::VSCodeServer.var"#112#114"{Module, Expr, REPL.LineEditREPL, REPL.LineEdit.Prompt})()
    @ VSCodeServer c:\Users\pkudu\.vscode\extensions\julialang.language-julia-1.79.2\scripts\packages\VSCodeServer\src\repl.jl:192
 [18] with_logstate(f::Function, logstate::Any)
    @ Base.CoreLogging .\logging.jl:515
 [19] with_logger
    @ .\logging.jl:627 [inlined]
 [20] (::VSCodeServer.var"#111#113"{Module, Expr, REPL.LineEditREPL, REPL.LineEdit.Prompt})()
    @ VSCodeServer c:\Users\pkudu\.vscode\extensions\julialang.language-julia-1.79.2\scripts\packages\VSCodeServer\src\repl.jl:193
 [21] #invokelatest#2
    @ .\essentials.jl:892 [inlined]
 [22] invokelatest(::Any)
    @ Base .\essentials.jl:889
 [23] (::VSCodeServer.var"#64#65")()
    @ VSCodeServer c:\Users\pkudu\.vscode\extensions\julialang.language-julia-1.79.2\scripts\packages\VSCodeServer\src\eval.jl:34
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