Fixing Threading error

[nithingovindarajan]

I have tried running the following piece of code on my PC:

from typing import Sequence

import autograd.numpy as np
from numpy.typing import ArrayLike

import pymanopt
import pymanopt.manifolds
import pymanopt.optimizers


def test_lmlra_manopt():

    N = [5, 5, 4, 6]
    R = [2, 3, 2, 2]

    # Define manifold
    manifold = pymanopt.manifolds.Product(
        [pymanopt.manifolds.Stiefel(n, r) for n, r in zip(N, R)]
    )

    A = [np.random.normal(size=(n, r)) for n, r in zip(N, R)]

    @pymanopt.function.autograd(manifold)
    def cost(*point: Sequence[ArrayLike]) -> float:
        return sum([np.linalg.norm(x - a) ** 2 for x, a in zip(point, A)])

    @pymanopt.function.autograd(manifold)
    def euclidean_gradient(*point: Sequence[ArrayLike]) -> Sequence[ArrayLike]:
        return [2 * (x - a) for x, a in zip(point, A)]

    # solve problem
    problem = pymanopt.Problem(manifold, cost, euclidean_gradient=euclidean_gradient)
    optimizer = pymanopt.optimizers.SteepestDescent()
    result_manual = optimizer.run(problem)

    problem = pymanopt.Problem(manifold, cost)
    result_autograd = optimizer.run(problem)

    print(result_manual.point)
    print(result_autograd.point)

but Python completely crashes and I end up getting

Fatal Python error: Aborted

Thread 0x000060dc (most recent call first):
....

This error occurs at optimizer.run(). I think something is wrong with my environment (I am using conda). What specific information do I need to provide about my environment in order to get helped further?

[nkoep]

Without any more information about which Python, numpy, scipy and autograd versions you are using there's not much we can do. The example runs fine for me on pymanopt 2.0.0 in a fresh virtualenv on Python 3.10.

[Diegoigerencia]

Hi, i have a problem i try to run "from recommenders.models.geoimc.geoimc_algorithm import IMCProblem" but i get the error:
ModuleNotFoundError: No module named 'pymanopt.solvers'.
how can i solve this?

[nkoep]

Hi, depending on which version of pymanopt this package is using the solvers subpackage was renamed to optimizers as you can see here: https://pymanopt.org/docs/stable/optimizers.html#optimizers.

…

On Thu, Sep 29, 2022, 21:30 Diegoigerencia ***@***.***> wrote: Hi, i have a problem i try to run "from recommenders.models.geoimc.geoimc_algorithm import IMCProblem" but i get the error: ModuleNotFoundError: No module named 'pymanopt.solvers'. how can i solve this? — Reply to this email directly, view it on GitHub <#207 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AAKYLNKJSJU5ZWJR77SKYW3WAXU5VANCNFSM53HHRLGA> . You are receiving this because you commented.Message ID: ***@***.***>