| import autograd.numpy as np | |
| import scipy.stats as st | |
| import matplotlib.pyplot as plt | |
| import matplotlib.animation as animation | |
| import matplotlib as mpl | |
| import seaborn as sns | |
| from minimc.minimc.minimc_slow import hamiltonian_monte_carlo as hmc_slow | |
| from minimc.minimc import neg_log_normal, mixture |
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).
Matrix multiplication is a mathematical operation that defines the product of
| // Unity C# Cheat Sheet | |
| // I made these examples for students with prior exerience working with C# and Unity. | |
| // Too much? Try Unity's very good tutorials to get up to speed: https://unity3d.com/learn/tutorials/topics/scripting |
| """ Trains an agent with (stochastic) Policy Gradients on Pong. Uses OpenAI Gym. """ | |
| import numpy as np | |
| import cPickle as pickle | |
| import gym | |
| # hyperparameters | |
| H = 200 # number of hidden layer neurons | |
| batch_size = 10 # every how many episodes to do a param update? | |
| learning_rate = 1e-4 | |
| gamma = 0.99 # discount factor for reward |
| {0: 'tench, Tinca tinca', | |
| 1: 'goldfish, Carassius auratus', | |
| 2: 'great white shark, white shark, man-eater, man-eating shark, Carcharodon carcharias', | |
| 3: 'tiger shark, Galeocerdo cuvieri', | |
| 4: 'hammerhead, hammerhead shark', | |
| 5: 'electric ray, crampfish, numbfish, torpedo', | |
| 6: 'stingray', | |
| 7: 'cock', | |
| 8: 'hen', | |
| 9: 'ostrich, Struthio camelus', |
| #!/bin/bash | |
| DOWNLOAD_URLS=( \ | |
| #Outlook | |
| "http://download.microsoft.com/download/A/2/C/A2C967A4-8B34-48FE-BC3D-E6532CC2DCD0/Microsoft_Outlook_15.12.3_Updater.pkg" \ | |
| # Word | |
| "http://download.microsoft.com/download/8/F/0/8F0A32FB-A355-41D1-BBFB-55C734814787/Microsoft_Word_15.12.3_Updater.pkg" \ | |
| # Excel | |
| "http://download.microsoft.com/download/8/F/4/8F4AB813-DEFA-4603-9397-D2C73F1EE5BF/Microsoft_Excel_15.12.3_Updater.pkg" \ | |
| # Powerpoint | |
| "http://download.microsoft.com/download/3/3/9/33959026-296A-449D-97E3-3FA7944AC373/Microsoft_PowerPoint_15.12.3_Updater.pkg" \ |
| //Install Macports. | |
| //Install aircrack-ng: | |
| sudo port install aircrack-ng | |
| //Install the latest Xcode, with the Command Line Tools. | |
| //Create the following symlink: | |
| sudo ln -s /System/Library/PrivateFrameworks/Apple80211.framework/Versions/Current/Resources/airport /usr/sbin/airport | |
| //Figure out which channel you need to sniff: | |
| sudo airport -s | |
| sudo airport en1 sniff [CHANNEL] |
Unfortunately, the Cisco AnyConnect client for Mac conflicts with Pow. And by "conflicts", I mean it causes a grey-screen-of-death kernel panic anytime you connect to the VPN and Pow is installed.
As an alternative, there is OpenConnect, a command-line client for Cisco's AnyConnect SSL VPN.
Here's how to get it set up on Mac OS X:
OpenConnect can be installed via homebrew:
brew update
brew install openconnect