Some mistake when I test it after finish install python bindings, help me?

Installing preCICE
1

I finished install python bindings, when I test it, mistake happened.

(1) my test step,as follow:

  • step 1:download python bindings v2.5.0(because precice version is v2.5.0)
  • step 2: Open terminal in python bindings folder.
  • step 3: $ python3 setup.py test

(2) my mistake is as followed:

[DESKTOP-41G51H4:06765] Signal: Segmentation fault (11)
[DESKTOP-41G51H4:06765] Signal code: Address not mapped (1)
[DESKTOP-41G51H4:06765] Failing at address: 0x4f0
[DESKTOP-41G51H4:06765] [ 0] /lib/x86_64-linux-gnu/libc.so.6(+0x43090)[0x7f4480826090]
[DESKTOP-41G51H4:06765] [ 1] /home/nili/python-bindings/cyprecice.cpython-38-x86_64-linux-gnu.so(+0x315bf)[0x7f447d1615bf]
[DESKTOP-41G51H4:06765] [ 2] python3(_PyEval_EvalFrameDefault+0x859)[0x56b619]
[DESKTOP-41G51H4:06765] [ 3] python3[0x50b07e]
[DESKTOP-41G51H4:06765] [ 4] python3(_PyEval_EvalFrameDefault+0x72d)[0x56b4ed]
[DESKTOP-41G51H4:06765] [ 5] python3(_PyFunction_Vectorcall+0x1b6)[0x5f6ce6]
[DESKTOP-41G51H4:06765] [ 6] python3(_PyEval_EvalFrameDefault+0x859)[0x56b619]
[DESKTOP-41G51H4:06765] [ 7] python3(_PyEval_EvalCodeWithName+0x26a)[0x5697da]
[DESKTOP-41G51H4:06765] [ 8] python3(_PyFunction_Vectorcall+0x393)[0x5f6ec3]
[DESKTOP-41G51H4:06765] [ 9] python3[0x50b17c]
[DESKTOP-41G51H4:06765] [10] python3(PyObject_Call+0x62)[0x5f60b2]
[DESKTOP-41G51H4:06765] [11] python3(_PyEval_EvalFrameDefault+0x1f3c)[0x56ccfc]
[DESKTOP-41G51H4:06765] [12] python3(_PyEval_EvalCodeWithName+0x26a)[0x5697da]
[DESKTOP-41G51H4:06765] [13] python3(_PyFunction_Vectorcall+0x393)[0x5f6ec3]
[DESKTOP-41G51H4:06765] [14] python3[0x59d21e]
[DESKTOP-41G51H4:06765] [15] python3(_PyObject_MakeTpCall+0x296)[0x5f7506]
[DESKTOP-41G51H4:06765] [16] python3(_PyEval_EvalFrameDefault+0x59c7)[0x570787]
[DESKTOP-41G51H4:06765] [17] python3(_PyEval_EvalCodeWithName+0x26a)[0x5697da]
[DESKTOP-41G51H4:06765] [18] python3(_PyFunction_Vectorcall+0x393)[0x5f6ec3]
[DESKTOP-41G51H4:06765] [19] python3[0x50b17c]
[DESKTOP-41G51H4:06765] [20] python3(PyObject_Call+0x62)[0x5f60b2]
[DESKTOP-41G51H4:06765] [21] python3(_PyEval_EvalFrameDefault+0x1f3c)[0x56ccfc]
[DESKTOP-41G51H4:06765] [22] python3(_PyEval_EvalCodeWithName+0x26a)[0x5697da]
[DESKTOP-41G51H4:06765] [23] python3(_PyFunction_Vectorcall+0x393)[0x5f6ec3]
[DESKTOP-41G51H4:06765] [24] python3[0x59d21e]
[DESKTOP-41G51H4:06765] [25] python3(_PyObject_MakeTpCall+0x296)[0x5f7506]
[DESKTOP-41G51H4:06765] [26] python3(_PyEval_EvalFrameDefault+0x59c7)[0x570787]
[DESKTOP-41G51H4:06765] [27] python3(_PyEval_EvalCodeWithName+0x26a)[0x5697da]
[DESKTOP-41G51H4:06765] [28] python3(_PyFunction_Vectorcall+0x393)[0x5f6ec3]
[DESKTOP-41G51H4:06765] [29] python3[0x50b17c]
[DESKTOP-41G51H4:06765] *** End of error message ***
Segmentation fault

can you help me?

2

Hi @ilovenili

We have observed this segmentation fault for pyprecice v2.5.0.2 just a few days ago! We are still trying to figure out what is going wrong. Initial investigation is showing that something is wrong in the initialize_data() function, but I am not yet sure.

@BenjaminRodenberg it appears we are not the only ones observing the segmentation fault.

3

@IshaanDesai thanks, if mistake done, don’t forgeot tell me

4

Hi @ilovenili

We have found out that the Python bindings v2.5.0.2 are not compatible with the latest release of Cython v3.0.0, which was released just last week. If you downgrade Cython using the command:

pip install "cython<3"

the bindings should work again. We are trying to find out the incompatibility and will publish a compatibility release soon.

5

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