Jetson Xavier NX - Numba Problem

Robotics & Edge Computing Jetson & Embedded Systems Jetson Xavier NX
1

After installing numba successfully on jetson Xavier NX
I am adding two arrays with numba and having the following issue:

File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/npyufunc/decorators.py”, line 120, in wrap
vec.add(sig)
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/npyufunc/dufunc.py”, line 163, in add
return self._compile_for_argtys(args, return_type)
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/npyufunc/dufunc.py”, line 209, in _compile_for_argtys
self._dispatcher, self.targetoptions, sig)
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/npyufunc/ufuncbuilder.py”, line 146, in _compile_element_wise_function
cres = nb_func.compile(sig, **targetoptions)
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/npyufunc/ufuncbuilder.py”, line 95, in compile
return self._compile_core(sig, flags, locals)
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/npyufunc/ufuncbuilder.py”, line 130, in _compile_core
flags=flags, locals=locals)
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/compiler.py”, line 550, in compile_extra
args, return_type, flags, locals)
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/compiler.py”, line 280, in init
typingctx.refresh()
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/typing/context.py”, line 160, in refresh
self._load_builtins()
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/typing/context.py”, line 400, in _load_builtins
from . import ctypes_utils, bufproto # noqa: F401
File “/home/siddhant/c4aarch64_installer/lib/python3.7/site-packages/numba/typing/bufproto.py”, line 22, in
array.array: types.PyArray,
AttributeError: module ‘array’ has no attribute ‘array’

3

Hi,

How do you install numba?

Do you try to use python 3.7 for numpy?
Please noted that we only officially support python 3.6 from Ubuntu 18.04.

Thanks.

5

Hey,
I am using python3.6 and I used the following steps to install numba

  • Install conda4aarch64. This will create a minimal conda environment.
  • Add the c4aarch64 and conda-forge channels to your conda configuration:

$ conda config --add channels c4aarch64
$ conda config --add channels conda-forge

  • Then you can install Numba from the numba channel:

$ conda install -c numba numba

When I used Pyhton3.6 it is not able to find numba

Traceback (most recent call last):
File “gpu.py”, line 3, in
from numba import vectorize, float32
ModuleNotFoundError: No module named ‘numba’

6

Hi,

Not sure why the numba is not working with conda installation.

But some of our users can install it with pip directly.
Would you mind to give it a try?

Thanks.