ViKing ViKingIX

Consumer-grade GPUs in an OpenStack system (NVIDIA GPUs)

Assumptions

This assumes you have GTX980 cards in your system (PCI id 10de:13c0 & 10de:0fbb per card). Just add more IDs for other cards in order to make this more generic. This also assumes nova uses qemu-kvm as the virtualization hypervisor (qemu-system-x86_64). This seems to be the default on OpenStack Newton when installed using openstack-ansible.

We assume OpenStack Newton is pre-installed and that we are working on a Nova compute node. This has been tested on an Ubuntu 16.04 system where I installed OpenStack AIO version 14.0.0 (different from the git tag used in the instructions!): http://docs.openstack.org/developer/openstack-ansible/developer-docs/quickstart-aio.html

Prepare the system for GPU passthrough (set up IOMMU/vfio/...)

Note: This is heavily based on information from https://wiki.archlinux.org/index.php/PCI_passthrough_via_OVMF#Enabling_IOMMU adapted for Ubuntu 16.04

1. Copy m3u8 link

2. Run command

echo "Enter m3u8 link:";read link;echo "Enter output filename:";read filename;ffmpeg -i "$link" -bsf:a aac_adtstoasc -vcodec copy -c copy -crf 50 $filename.mp4

Sample config for 2 million web socket connection

    sysctl -w fs.file-max=12000500
    sysctl -w fs.nr_open=20000500
    # Set the maximum number of open file descriptors
    ulimit -n 20000000

    # Set the memory size for TCP with minimum, default and maximum thresholds 
 sysctl -w net.ipv4.tcp_mem='10000000 10000000 10000000'

Setting up Qemu with a tap interface

There are two parts to networking within QEMU:

The virtual network device that is provided to the guest (e.g. a PCI network card).
The network backend that interacts with the emulated NIC (e.g. puts packets onto the host's network).

Example: User mode network

Installation

Install tacacs+ server:

sudo apt-get install tacacs+

Install tacacs+ client:

	============================================
	============================================
	============================================

	This does what it should:

	regex: (.+?)(:80)?

	Also see https://golang.org/pkg/regexp/syntax/

	# My tmux configuration, partly based on https://github.com/wbkang/wbk-stow/blob/master/tmux-config/.tmux.conf

	# Scroll History
	set -g history-limit 50000

	# show messages for 4 seconds instead
	set -g display-time 4000

	# set first window to index 1 (not 0) to map more to the keyboard layout
	set-option -g renumber-windows on

	###############################
	# Action Replay #
	# Code Types supported by #
	# CTRPluginFramework #
	# v0.5.0 #
	###############################

	==============
	INFO
	==============

	#
	# INPUT - Logstash listens on port 8514 for these logs.
	#

	input {
	udp {
	port => "8514"
	type => "syslog-cisco"
	}

	sudo rm -rf /Applications/Tuxera\ Disk\ Manager.app
	sudo rm -rf /Library/Application\ Support/Tuxera\ NTFS
	sudo rm -rf /Library/Filesystems/fusefs_txantfs.fs