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@hemenkapadia
hemenkapadia / Ubuntu 18.04 with Nvidia+CUDA on Optimus Laptop.md
Last active January 13, 2022 07:15
[Ubuntu 18.04 with Nvidia+CUDA on Optimus Laptop] Setting up Ubuntu 18.04 with nvidia drivers and CUDA for data science on Dell 7559 Optimus laptop #Ubuntu #Nvidia #CUDA #setup

Kernel settings for installation

Use a live usb to try Ubuntu before installing. Boot from the live usb. On the GRUB screen highlight the "Try Ubuntu ...." option and press e. Update kernel parameters by adding options before quiet splash such that the line should read as below

nogpumanager nomodeset i915.modeset=1 quiet splash

Note: On HighDPI screen machines there is a known issue whereby Ubiquity (ubuntu installer) craashes at the copying files step i.e. immediatly after the user setup screen. The cause and workaround are discussed in other gist post

Persist GRUB configuration

Post installation, to avoid updating the above mentioned kernel options each time the system is booted, edit GRUB configuration file sudo vi /etc/default/grub and make th

@neomatrix369
neomatrix369 / know-your-gpus.md
Last active December 7, 2024 10:58
Know your GPUs

Commands on Linux to gather information related to GPUs

Below is a list of commands and resources that work on Linux (some need installation of packages), would love to welcome contributions for the same for MacOSX and Windows platforms too. Please share and contribute back.

Please run the below in both vagrant, docker and other container environments and share your experiences with us!

About me: http://neomatrix369.wordpress.com/about, my blogs: http://neomatrix369.wordpress.com/

Get Hardware Details
@smartnose
smartnose / spark-internals-through-code.md
Last active October 29, 2024 06:03
Spark internal notes

Spark internals through code

Nothing gives you more detail about spark internals than actually reading it source code. In addition, you get to learn many design techniques and improve your scala coding skills. These are the random notes I make while reading the spark code. The best way to comprehend the notes is to load spark code into an IDE, e.g. IntelliJ, and navigate the code on the side.

Genesis - creation of a spark cluster

The scripts for creating a spark cluster are: start-master.sh and start-slave.sh. Read them carefully, and you can see that both scripts are very similar except the values for $CLASS variable. For start-master.sh, the value is CLASS="org.apache.spark.deploy.master.Master", while the value for start-slave.sh is shown below with more context.

# NOTE: This exact class name is matched downstream by SparkSubmit.
@pkuczynski
pkuczynski / LICENSE
Last active March 14, 2025 14:12
Read YAML file from Bash script
MIT License
Copyright (c) 2014 Piotr Kuczynski
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWAR