Google Colab Guide

by Prof. Seungchul Lee
http://iai.postech.ac.kr/
Industrial AI Lab at POSTECH

Table of Contents

1. Overview

• Access to GoogleColab

• GPU Settings

  • Colab enables users to use GPU

• Synchronization with GoogleDrive

  • It should be synchronized with GoogleDrive while the data being used from the loading
  • No needed when implementing codes without loading data

• References

  • https://zzsza.github.io/data/2018/08/30/google-colab/#%EA%B5%AC%EA%B8%80-%EB%93%9C%EB%9D%BC%EC%9D%B4%EB%B8%8C%EC%99%80-colab-%EC%97%B0%EB%8F%99

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2. Requirement

• You might need to have google account for Colab

• Owing to its remote access, there are no particular computing specifications.

• Saving the work regularly prevents the kernel from disconnecting on long-time work

3. Connect and Create New Notebook

• Search for 'Colab' in google's search window and access to the site (https://colab.research.google.com/) shown as the figure below

• You'll be able to create ipynb file by clicking NEW PYTHON 3 NOTEBOOK in the right below at main page
  • Every ipynb file would be saved in GoogleDrvie even if it's not synchronized to it.

4. GPU Setting

• Tesla K80 12GB available for free
• Available 12 hours in a row and automatically disconnected if there is no response 90 mintues later
  • Not meaning the 12-hour regulation in a day but meaning the 12-hour sequential limitation
• Select Runtime -> Change runtime type in the left above

• Click Hardware accelerate, select GPU and save it

5. Mounting Your Google Drive

• Synchronization makes it easier to use the data on GoogleDrive

• Type the code as above and implement it

from google.colab import auth
auth.authenticate_user()

from google.colab import drive
drive.mount('/content/gdrive')

• Login with user's own google account and allow after clicking the link

• Copy the code

• Paste the code to the window and enter it

• The message as the figure above will be shown if it works nomarlly

• Please refer to the materials for more information

6. Google Drive Path

• your google drive path: /content/gdrive/My Drive/

• colab notebook path: /content/gdrive/My Drive/Colab Notebooks

Please refer to the below figure.

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