silvesthu

GPU Optimization for GameDev

Graphics Pipeline / GPU Architecture Overview

• 2011 - A trip through the Graphics Pipeline 2011
• 2015 - Life of a triangle - NVIDIA's logical pipeline
• 2015 - Render Hell 2.0
• 2016 - How bad are small triangles on GPU and why?
• 2017 - GPU Performance for Game Artists
• 2019 - Understanding the anatomy of GPUs using Pokémon
• 2020 - GPU ARCHITECTURE RESOURCES

TengdaHan

Multi-node-training on slurm with PyTorch

What's this?

• A simple note for how to start multi-node-training on slurm scheduler with PyTorch.
• Useful especially when scheduler is too busy that you cannot get multiple GPUs allocated, or you need more than 4 GPUs for a single job.
• Requirement: Have to use PyTorch DistributedDataParallel(DDP) for this purpose.
• Warning: might need to re-factor your own code.
• Warning: might be secretly condemned by your colleagues because using too many GPUs.

banyudu

WSL2 Docker释放磁盘空间

Docker使用久了，会残留很多中间生成的镜像，占用磁盘空间。

要清理Docker镜像，本来是挺简单的，一条命令就搞定了：

mcarilli

# This isn't supposed to run as a bash script, i named it with ".sh" for syntax highlighting.

# https://developer.nvidia.com/nsight-systems
# https://docs.nvidia.com/nsight-systems/profiling/index.html

# My preferred nsys (command line executable used to create profiles) commands
#
# In your script, write
# torch.cuda.nvtx.range_push("region name")
# ...

mrdoob

Experiments

• http://absulit.com/portfolio/demo/webvr/001/
• https://www.clicktorelease.com/code/polygon-shredder/vr/ #positional
• https://www.clicktorelease.com/tmp/threejs/webvr-physics/ #positional #input #haptic
• https://janusweb.metacade.com/ https://github.com/jbaicoianu/janusweb/
• https://jzitelli.github.io/poolvr/
• https://kuva.io/block-background/ #positional #input
• https://www.shadertoy.com/results?filter=vr
• https://vr-batted-ball-vis.herokuapp.com/index.html

ocornut

// Creating a node graph editor for Dear ImGui
// Quick sample, not production code! 
// This is quick demo I crafted in a few hours in 2015 showcasing how to use Dear ImGui to create custom stuff,
// which ended up feeding a thread full of better experiments.
// See https://github.com/ocornut/imgui/issues/306 for details

// Fast forward to 2023, see e.g. https://github.com/ocornut/imgui/wiki/Useful-Extensions#node-editors

// Changelog
// - v0.05 (2023-03): fixed for renamed api: AddBezierCurve()->AddBezierCubic().

kylehounslow

from __future__ import print_function
import requests
import json
import cv2

addr = 'http://localhost:5000'
test_url = addr + '/api/test'

# prepare headers for http request
content_type = 'image/jpeg'

Mxhmovd

#pip install pafy
#sudo pip install --upgrade youtube_dl
import cv2, pafy

url   = "https://www.youtube.com/watch______"
video = pafy.new(url)
best  = video.getbest(preftype="webm")
#documentation: https://pypi.org/project/pafy/

capture = cv2.VideoCapture(best.url)

goncalossilva

#!/bin/sh

# sh gifenc.sh input.mp4 output.gif
# Optionally accepts width / height (one or both).

palette="/tmp/palette.png"
filters="fps=15"
if [ -n "$3" ]; then
  if [ -n "$4" ]; then
    filters="$filters,scale=$3:$4"

tiagoshibata

commit 6fac225de0575b18550f9421196f90a2279c44af
Author: Tiago Koji Castro Shibata <tiago.shibata@gmail.com>
Date:   Fri Dec 28 23:13:14 2018 -0200

    Fix compilation with latest OpenCV
    
    C APIs were removed and must be replaced with C++ calls

diff --git a/Makefile b/Makefile
index 63e15e6..c148d4b 100644