pjotrp

Notes from the Mystery Machine Bus

I've spent the past eight years (starting back in June 2004) writing elaborate rants about a bunch of vaguely related software engineering issues.

I was doing all that ranting because I've been genuinely perplexed by a set of "bizarre" world-views held dear by -- as far as I can tell -- about half of all programmers I encounter, whether online or in person.

Last week, after nearly a decade of hurling myself against this problem, I've finally figured it out. I know exactly what's been bothering me.

In today's essay I'm going to present you with a new conceptual framework for thinking about software engineering. This set of ideas I present will be completely obvious to you. You will probably slap yourself for not having thought of it yourself. Or you might slap the person next to you. In fact you probably have thought of it yourself, because it is so blindingly obvious.

pjotrp

#!/bin/bash

# Usage:   ./honeywell_settmp.sh [-c|-h|-o] [<temp(F)>|schedule]
# Example: ./honeywell_settmp.sh -h 72        # set HEAT: temp=72F
#          ./honeywell_settmp.sh -c schedule  # set COOL: follow shceduled temp
#          ./honeywell_settmp.sh -o           # turn system OFF

######## Settings ########
LOGIN="YOUR_MAIL_ADDRESS"
PASSWORD="YOUR_PASSWORD"

pjotrp

### Keybase proof

I hereby claim:

  * I am pjotrp on github.
  * I am pjotrp (https://keybase.io/pjotrp) on keybase.
  * I have a public key ASD7kTur_ZppaDJ63LYDzsVXAxA096kY7-xaxy8oyPIn-wo

To claim this, I am signing this object:

pjotrp

/gnu/store/ik2j18y8gd370ndinna725c2ikldyh0r-cwltool-1.0.20181012180214/bin/.cwltool-real 1.0
Resolved 'Workflows/test-workflow.cwl' to 'file:///gnu/export/local/home/wrk/izip/git/opensource/cwl/hacchy1983-CWL-workflows/Workflows/test-workflow.cwl'
[workflow ] start
[workflow ] starting step trimPE
[step trimPE] start
[job trimPE] /tmp/ypu930v1$ java \
    -jar \
    /gnu/store/f09s746mp061ric48gdb1xaav9ki0b7q-trimmomatic-jar-0.38/lib/share/jar/trimmomatic-0.38.jar \
    PE \
    /tmp/tmpt5_80dad/stg2b137de8-6a7f-4ff7-882b-69a5f0ab4d61/small.ERR034597_1.fastq \

pjotrp

(define-public mruby
  (package
    (name "mruby")
    (version "2.0.0")
    (source (origin
             (method url-fetch)
             (uri (string-append "https://github.com/mruby/mruby/archive/" version ".zip"))
             (sha256
              (base32

pjotrp

L1 cache reference                  0.5 ns
Branch mispredict                   5 ns
L2 cache reference                  7 ns
Mutex lock/unlock                   25 ns
Main memory reference               100 ns
Compress 1K bytes with Zippy        3,000 ns
Send 2K bytes over 1 Gbps network   20,000 ns
Read 1 MB sequentially from memory  250,000 ns
Round trip within same datacenter   500,000 ns
Disk seek                           10,000,000 ns

pjotrp

/**

  A minimal example to use the random number generator of R (calling into Rlib.so from D)

  dmd test_rlib.d ; ./test_rlib

  It is a copy of the C code I wrote for BioLib

  Pjotr Prins, 2012

pjotrp

/**

The following example uses this function to calculate the matrix-vector product using 
a blas/lapack routine:

  / 3 1 3 \   / -1 \ 
  | 1 5 9 | * | -1 |. 
  \ 2 6 5 /   \  1 / 

D2 version based on the C version at http://www.seehuhn.de/pages/linear

pjotrp

# Ruby script to convert Foxpro file to SQLite or MySQL
#

USE_SQLITE3 = false

require 'rubygems'
require 'dbf'
require 'active_record'

if USE_SQLITE3

pjotrp

    case class Symbol() 
    case object Gap extends Symbol 
    case class Nucleotide() extends Symbol
    case object GapN extends Nucleotide 
    case object A extends Nucleotide
    case object G extends Nucleotide
    case object C extends Nucleotide
    case object T extends Nucleotide