Taichi: [misc] Importing matplotlib.pyplot before importing taichi will be fault on OSX
Describe the bug
Importing matplotlib.pyplot before importing taichi will be fault on OSX.
I found this bug.
Could you check it?
snippets to reproduce bugs and logs
Environments
- OS: OSX Catalina 10.15.4
- Python 3.7.0 64-bit (using poetry)
taichi:0.6.4matplotlib:3.2.1
Import matplotlib after taichi
- snippets
import taichi as ti
import matplotlib.pyplot as plt # changed here
pixels = ti.var(dt=ti.f32, shape=(400, 200))
@ti.kernel
def fill():
for i, j in pixels:
pixels[i, j] = i * j
fill()
- Logs
[Taichi] mode=release
[Taichi] version 0.6.4, supported archs: [cpu, metal], commit 562e1f11, python 3.7.0
objc[47064]: Class View is implemented in both ?? (0x7fd6fb58b8e0) and /Users/berry/Library/Caches/pypoetry/virtualenvs/taichi-snippets-lZeOq7r2-py3.7/lib/python3.7/site-packages/matplotlib/backends/_macosx.cpython-37m-darwin.so (0x120eb4820). One of the two will be used. Which one is undefined.
This snippets will work correctly.
Import matplotlib before taichi
- snippets
import matplotlib.pyplot as plt
import taichi as ti # changed here
pixels = ti.var(dt=ti.f32, shape=(400, 200))
@ti.kernel
def fill():
for i, j in pixels:
pixels[i, j] = i * j
fill()
- Logs
[Taichi] mode=release
[E 05/16/20 17:40:29.846] Received signal 11 (Segmentation fault: 11)
* Taichi Core - Stack Traceback *
==========================================================================================
| Module | Offset | Function |
|----------------------------------------------------------------------------------------|
* taichi_core.so | 324 | taichi::signal_handler(int) |
* libsystem_platform.dylib | 29 | (null) |
* ??? | 26350 | (null) |
* taichi_core.so | 94 | initView() |
* ??? | 203506147 | (null) |
* ??? | 203507182 | (null) |
* ??? | 203485195 | (null) |
* ??? | 203477012 | (null) |
* ??? | 203477172 | (null) |
* ??? | 203419184 | (null) |
* ??? | 203460091 | (null) |
* libdyld.dylib | 171 | (null) |
* python | 134 | (null) |
* python | 494 | (null) |
* python | 220 | (null) |
* python | 122 | (null) |
* python | 65 | (null) |
* python | 46177 | (null) |
* python | 418 | (null) |
* python | 195 | (null) |
* python | 181 | (null) |
* python | 45215 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45065 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 248 | (null) |
* python | 243 | (null) |
* python | 3600 | (null) |
* python | 36611 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 418 | (null) |
* python | 347 | (null) |
* python | 122 | (null) |
* python | 65 | (null) |
* python | 46177 | (null) |
* python | 418 | (null) |
* python | 195 | (null) |
* python | 181 | (null) |
* python | 45215 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45065 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 248 | (null) |
* python | 243 | (null) |
* python | 3600 | (null) |
* python | 36611 | (null) |
* python | 418 | (null) |
* python | 347 | (null) |
* python | 122 | (null) |
* python | 65 | (null) |
* python | 46177 | (null) |
* python | 418 | (null) |
* python | 195 | (null) |
* python | 181 | (null) |
* python | 45215 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45065 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 248 | (null) |
* python | 243 | (null) |
* python | 3600 | (null) |
* python | 36611 | (null) |
* python | 418 | (null) |
* python | 347 | (null) |
* python | 122 | (null) |
* python | 65 | (null) |
* python | 46177 | (null) |
* python | 418 | (null) |
* python | 195 | (null) |
* python | 181 | (null) |
* python | 45215 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45065 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 181 | (null) |
* python | 45705 | (null) |
* python | 120 | (null) |
* python | 248 | (null) |
* python | 243 | (null) |
* python | 3600 | (null) |
* python | 36611 | (null) |
* python | 418 | (null) |
* python | 256 | (null) |
* python | 388 | (null) |
* python | 9148 | (null) |
* python | 142 | (null) |
* libdyld.dylib | 1 | (null) |
==========================================================================================
This snippets won't work.
Could you check it?
regards,
j20232
👍2
All 5 comments
I also have encountered the same bug on OSX, rearranging the imports have solved the issue
belkakari
on 16 May 2020
I can probably take a look. My current guess is that there seems to be a conflict in the GUI system..
k-ye
on 17 May 2020
👍1
Hi -- 0.6.5 should have solved this problem now. Could you upgrade taichi and verify if it works? Thx
k-ye
on 19 May 2020
👍1
Hi, I tried now and it looks fine!
Thank you for your great work!
j20232
on 19 May 2020
👍1
Great thanks!
k-ye
on 19 May 2020
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