louisaslett

# Script to compare matrix inversion speeds of base R, Matrix and torch packages
# Also shows double -vs- single precision torch speeds (see output.txt for results on M1 Mac)

library("Matrix")
library("torch")

base <- microbenchmark::microbenchmark(
  b <- solve(a),
  setup = {
    a <- matrix(rnorm(1600*1600), 1600)

louisaslett

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title: ""
format: html
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[https://fosstodon.org/@coolbutuseless/112329375557579427](https://fosstodon.org/@coolbutuseless/112329375557579427)

```{r}
# Quick script to do a simple test of uniform byte generator in package
# coolbutuseless/cryptorng which uses OS level cryptographic RNGs

louisaslett

#!/bin/sh

PROXY_INTERFACE="Wi-Fi"
PROXY_HOST=127.0.0.1
PROXY_PORT=1080

# A host where ssh can login without interaction, with a key-based
# authentication.
SOCKS_PROC_USER="username"
SOCKS_PROC_HOST="example.com"

louisaslett

#!/bin/bash

# 0. Ensure AWS CLI tool installed: pip install awscli
# 1. Make shell script executable: chmod u+x ec2-spot-prices.sh
# 2. Run script and provide instance type to check: ./ec2-spot-prices.sh c4.8xlarge
# 3. Script runs and outputs full stops while querying the Amazon API,
#      returning three columns: Region+AZ, Instance Type, Current Spot Price in $

allSpot=""
for Reg in eu-west-1 eu-west-2 eu-west-3 eu-central-1 eu-north-1 ca-central-1 us-east-1 us-east-2 us-west-1 us-west-2 sa-east-1 ap-southeast-1 ap-northeast-1 ap-east-1 ap-northeast-2 ap-southeast-2 ap-south-1