Harold2017

Covariance Matrix Calculation

homemade cov function for 3d points:

#include "iostream"
#include "arrayfire.h"

Harold2017

Storing Images and Demos in your Repo

In this quick walkthough you'll learn how to create a separate branch in your repo to house your screenshots and demo gifs for use in your master's readme.

How to

1. Clone a fresh copy of your repo

In order to prevent any loss of work it is best to clone the repo in a separate location to complete this task.

2. Create a new branch

Create a new branch in your repo by using git checkout --orphan assets

Harold2017

Install Octave with flatpak

• Install flatpak sudo apt-get install flatpak
• Add flathub flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
• Install Octave flatpak install flathub org.octave.Octave

Harold2017

package main

import (
	"bufio"
	"fmt"
	"os"
	"os/exec"
	"strings"
)

Harold2017

package bits

// from `strconv.Iota`
const host32bit = ^uint(0)>>32 == 0
const host64bit = ^uint(0)>>64 == 0
const intSize = 32 << (^uint(0) >> 63)
const shiftToSign = intSize - 1

// Sign returns 1 for positive, -1 for negative and 0 for 0
func Sign(x int) int {

Harold2017

FROM nvidia/cuda:10.1-devel-ubuntu18.04
MAINTAINER Harold

# GCC 9
RUN apt-get update && apt-get install -y software-properties-common
RUN add-apt-repository ppa:ubuntu-toolchain-r/test && \
    apt update && \
    apt install -y gcc-9-offload-nvptx g++-9 && \
    update-alternatives --install /usr/bin/gcc gcc /usr/bin/gcc-9 60 --slave /usr/bin/g++ g++ /usr/bin/g++-9
    

Harold2017

BenchmarkMutexCache/10-8            10000000	       180 ns/op	       0 B/op	       0 allocs/op
BenchmarkMutexCache/100-8           10000000	       187 ns/op	       0 B/op	       0 allocs/op
BenchmarkMutexCache/1000-8          10000000	       214 ns/op	       0 B/op	       0 allocs/op
BenchmarkMutexCache/10000-8         10000000	       231 ns/op	       0 B/op	       0 allocs/op
BenchmarkMutexCache/100000-8         5000000	       254 ns/op	       2 B/op	       0 allocs/op
BenchmarkMutexCache/1000000-8        1000000	      1159 ns/op	     102 B/op	       1 allocs/op
BenchmarkMutexCache/10000000-8       1000000	      1481 ns/op	     184 B/op	       2 allocs/op
BenchmarkMutexCache/100000000-8      1000000	      1655 ns/op	     187 B/op	       3 allocs/op

BenchmarkSyncMapCache/10-8           5000000	       221 ns/op	       0 B/op	       0 allocs/op

Harold2017

# install vcpkg
git clone https://github.com/Microsoft/vcpkg
cd vcpkg
./bootstrap-vcpkg.sh -disableMetrics
sudo ln -s /xxx/vcpkg/vcpkg /usr/local/bin
vcpkg help

# use it in CMakeLists.txt
set(ENV{VCPKG_ROOT} "/xxx/vcpkg/vcpkg")

Harold2017

cmake

compile libtcmalloc_minimal with Release-Patch

link libtcmalloc_minimal.lib in CMakeList

copy libtcmalloc_minimal.dll to execution folder

without cmake

Harold2017

replace Homebrew git repo

git -C "$(brew --repo)" remote set-url origin https://mirrors.ustc.edu.cn/brew.git

replace Homebrew Core git repo

git -C "$(brew --repo homebrew/core)" remote set-url origin https://mirrors.ustc.edu.cn/homebrew-core.git

replace Homebrew Cask git repo

git -C "$(brew --repo homebrew/cask)" remote set-url origin https://mirrors.ustc.edu.cn/homebrew-cask.git

replace Homebrew-bottles