Can we run this library in google colab

[sohailiqbal]

Is it possible to run this library in google colab.

[simonzhang00]

Yes, as long as Google colab will allow you to run the commands git, cmake, apt, make, nvcc, python3, pip3 etc you can build as you would on a local machine.

Building from source is very consistent. This is how you would install the python bindings of ripser++ in Google colab:

1. To use GPU on Google Colab, create a new notebook. Then runtime-> change runtime type-> GPU

2. In this fresh notebook, run the command !pwd. It should say /content. If not, then run:

import os
os.chdir('/content')

3. clone the repository:

!git clone https://github.com/simonzhang00/ripser-plusplus.git'

4. install cmake:

!apt update
!apt install -y cmake

5. build the .so file (this is what gets executed when you run python code on top of ripser++)

import os
os.chdir('/content/ripser-plusplus/python/bin')
!pwd
!cmake /content/ripser-plusplus/python && make

6. install ripser++ for python

!pip3 install /content/ripser-plusplus/python/

7. To run the examples.py file run:

import os
os.chdir('/content/ripser-plusplus/python/working_directory')
!pwd`
!python3 "examples.py"

Don't forget, if you want to remove verbosity, uncomment the two lines:

#define PROFILING
#define COUNTING

from ripser++.cu and don't forget that uncommenting

#define ASSEMBLE_REDUCTION_SUBMATRIX 

may give better performance.

Here is gist of the above instructions:
Google colab gist

Good luck and have fun!

[IbtihalFerwana]

Hello,
thanks for the guide.

at step 5, I face the issue that folder /python is not created in ripser-plusplus. Any hints in that?
FileNotFoundError: [Errno 2] No such file or directory: '/ripser-plusplus/python/bin'

[simonzhang00]

These instructions are old, ripser++ has been updated. To install ripser++ just use: pip3 install ripserplusplus or pip3 install git+https://github.com/simonzhang00/ripser-plusplus or clone the repository and follow the instructions in the main README.md.

[sava-1729]

pip3 install ripserplusplus

Hello,
This still doesn't seem to work. Please check the notebook below for details:
https://github.com/sava-1729/practice/blob/master/ripser.ipynb

Edit:
One needs to enable GPU in the notebook menu:
Runtime -> Change Runtime Type -> Hardware Accelerator -> GPU
And after that it gets installed perfectly. Check the notebook below for details:
https://github.com/sava-1729/practice/blob/master/ripser_with_gpu.ipynb