Intel® oneAPI AI Analytics Toolkit
Find answers to your toolkit installation, configuration, and get-started questions.

One API Null pointer exception

Ujjayanta
Beginner
942 Views

I am trying to run the notebook: https://github.com/IntelPython/daal4py/blob/master/examples/daal4py_data_science.ipynb

I am getting an error here:

d4p_lm = d4p.linear_regression_training(interceptFlag=True)
lm_trained = d4p_lm.compute(reduced_dataset.values, target)

RuntimeError                              Traceback (most recent call last)
<ipython-input-73-3f33ed888e39> in <module>
     24 
     25 d4p_lm = d4p.linear_regression_training(interceptFlag=True)
---> 26 lm_trained = d4p_lm.compute(reduced_dataset.values, target)

build\daal4py_cy.pyx in _daal4py.linear_regression_training.compute()

build\daal4py_cy.pyx in _daal4py.linear_regression_training._compute()

RuntimeError: Null pointer in input arguments

 I get this null pointer error in naive bayes and a lot of other examples as well in https://github.com/IntelPython/daal4py/tree/master/examples.

How do I get over these null pointer woes?

0 Kudos
8 Replies
RaeesaM_Intel
Moderator
929 Views

Hi ,

 

Thank you for posting in Intel AI Analytics Toolkit Forum.

Can you share the environment details that you used to run the notebook daal4py_data_science.ipynb . Are you using daal4py preinstalled with Intel AI Analytics toolkit environment or separately created a daal4py environment like in https://github.com/IntelPython/daal4py/blob/master/README.md ?

 

We were able to successfully run the notebook using AI environment. Please refer the below link for creating AI environment and install necessary packages.

https://software.intel.com/content/www/us/en/develop/articles/installing-ai-kit-with-conda.html

Also, please make sure that you have run all the cells before "Training the model " section.

 

Thanks and Regards ,

Raeesa

 

Ujjayanta
Beginner
926 Views

Hi 

I have set up my conda environment using:

conda create -n DAAL4PY python=3.6 impi-devel daal daal-include cython jinja2 numpy clang-tools -c intel -c conda-forge

conda activate DAAL4PY

conda install -c intel daal4py

 

 

RaeesaM_Intel
Moderator
913 Views

Hi ,


Can you try these steps :

1.      creating a conda environment and setting environment variable

conda create -n DAAL4PY python=3.7 impi-devel daal daal-include cython jinja2 numpy clang-tools -c intel -c conda-forge

conda activate DAAL4PY

export DAALROOT=$CONDA_PREFIX

export MPIROOT=$CONDA_PREFIX


2.      building daal4py

cd <directory-where-setup.py-is-present>

python setup.py build_ext


3.      installing daal4py

python setup.py install


4.      Installing packages if necessary

conda install -c intel/label/oneapibeta daal4py

pip install matplotlib

pip install pandas


5.      Checking the requirements using python shell

Python

>>>import pandas

>>>import matplotlib

>>>import glob

>>>import sys

>>>import daal4py


Are you using a different dataset or the same one used in notebook (data/batch/cycling_dataset.csv) ? Also check whether all the cells before ‘Training the model’ section are running successfully as expected.


Raeesa


Ujjayanta
Beginner
907 Views

Hi 

What would be the equivalent for the export commands in Windows?

RaeesaM_Intel
Moderator
889 Views

Hi ,


You can use SET in windows equivalent to EXPORT in linux.

So the commands will be ,

set DAALROOT=$CONDA_PREFIX

set MPIROOT=$CONDA_PREFIX

We tried running the notebook in linux and it worked fine,will try out in windows and get back to you on the updates.


Thanks,

Raeesa


RaeesaM_Intel
Moderator
881 Views

Hi Ujjayanta,


We were able to run the notebook without any errors on windows. Could you please try again with these steps :


1.      Creating a conda environment and setting environment variable

conda create -n DAAL4PY python=3.7 impi-devel daal daal-include cython jinja2 numpy clang-tools -c intel -c conda-forge

conda activate DAAL4PY

set DAALROOT=$CONDA_PREFIX

set MPIROOT=$CONDA_PREFIX


2.      Installing packages if necessary

conda install -c intel/label/oneapibeta daal4py

conda install matplotlib

conda install pandas


Regards,

Raeesa


RaeesaM_Intel
Moderator
860 Views

Hi,


Has the solution provided helped you? Please let us know if the issue still persists.




RaeesaM_Intel
Moderator
820 Views

Hi,


We haven't got any updates from your side. We are discontinuing monitoring this thread. Please raise a new query if you have any further issues. We would be happy to help you.


Raeesa


Reply