nadavrot

High-Performance Matrix Multiplication

This is a short post that explains how to write a high-performance matrix multiplication program on modern processors. In this tutorial I will use a single core of the Skylake-client CPU with AVX2, but the principles in this post also apply to other processors with different instruction sets (such as AVX512).

Intro

Matrix multiplication is a mathematical operation that defines the product of

aparrish

sqe

# Solution found @ http://stackoverflow.com/a/31803008:

from selenium import webdriver
import requests

driver = webdriver.Chrome()

fake_lat = "37.773972"
fake_long = "-122.431297"

mojombo

How to set your Acer C720 Chromebook to boot to Ubuntu by default.

1. Place your closed laptop on a soft surface, upside down.
2. Use a sharp knife to cut a hole in the warranty sticker (YES THIS WILL VOID THE WARRANTY).
3. Remove the 13 screws with a small phillips head screwdriver (PH1 size works well). Be careful, the screws are very small and will strip easily if you use the wrong size screwdriver.
4. Remove the bottom of the laptop by pulling up on it near the hinges. It takes a bit of pressure to remove, but if you lift it from the back (near the hinges) the same way you would open a laptop screen, the hooks won't break (even though they will make a loud snapping sound).
5. Remove the BIOS write-protect screw. It is labeled as #7 in this image
6. With the bottom off, turn over the laptop and open the screen.
7. Plug the laptop in (it must b

bramswenson

Amazon SQS Notes

Queue Structure

• Queues are distributed
• Queues are limited to 120000 in-flight messages (use more small queues instead of one large queue)
• Queues may have any number of clients sending/receiving messages at once
• Queues can be created with a built in delay on message visibility
• Queues can be created just for dumping messages whose processing has failed

cezarcp

//Uncomment both lines below if testing on an Xcode playground.
//import XCPlayground
//XCPSetExecutionShouldContinueIndefinitely()

let url = NSURL(string: "http://www.stackoverflow.com")

let task = NSURLSession.sharedSession().dataTaskWithURL(url) {(data, response, error) in
    println(NSString(data: data, encoding: NSUTF8StringEncoding))
}

1wErt3r

;SMBDIS.ASM - A COMPREHENSIVE SUPER MARIO BROS. DISASSEMBLY
;by doppelganger (doppelheathen@gmail.com)

;This file is provided for your own use as-is.  It will require the character rom data
;and an iNES file header to get it to work.

;There are so many people I have to thank for this, that taking all the credit for
;myself would be an unforgivable act of arrogance. Without their help this would
;probably not be possible.  So I thank all the peeps in the nesdev scene whose insight into
;the 6502 and the NES helped me learn how it works (you guys know who you are, there's no 

bwhite

"""Information Retrieval metrics

Useful Resources:
http://www.cs.utexas.edu/~mooney/ir-course/slides/Evaluation.ppt
http://www.nii.ac.jp/TechReports/05-014E.pdf
http://www.stanford.edu/class/cs276/handouts/EvaluationNew-handout-6-per.pdf
http://hal.archives-ouvertes.fr/docs/00/72/67/60/PDF/07-busa-fekete.pdf
Learning to Rank for Information Retrieval (Tie-Yan Liu)
"""
import numpy as np

MohamedAlaa

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

jonhurlock

#!/usr/bin/env python

"""
Simple Indexer
=================================
Author: Jon Hurlock, October 2011

This script basically crawls a domain (not just a page) and 
then extracts all links <a href=""></a>, and finds all links
 on that domain it also is able extract different file types