skariel

#include <iostream>
#include <string>
#include <ctime>

using namespace std;
 
double* func_cpp(double a, double inc, double b) {
	double* buff;
	for (auto i=0; i<1000; i++) {
		int len= (int)((b-a)/inc);

skariel

module GeometricalPredicates

# GeometricalPredicates_v0.2.9
#
# Fast, robust 2D and 3D geometrical predicates on generic point types.
# Implementation follows algorithms described in http://arxiv.org/abs/0901.4107
# and used (for e.g.) in the Illustris Simulation
# http://www.illustris-project.org/
#
# Author: Ariel Keselman (skariel@gmail.com)

skariel

module VoronoiDelaunay

# VoronoiDelaunay_v0.2.9
#
# Fast, robust 2D Voronoi/Delaunay tesselation
# Implementation follows algorithms described in http://arxiv.org/abs/0901.4107
# and used (for e.g.) in the Illustris Simulation
# http://www.illustris-project.org/
#
# Author: Ariel Keselman (skariel@gmail.com)

skariel

[JULIA] Faster than CGAL Delaunay

TL;DR

DelaunayJL is an incremental 2D Delaunay triangulation algorithm implemented in Julia, it is robust and ~20% faster than CGAL, the C++ de-facto industry standard. And it's MIT Licensed! all links to code are below

Show me the data!

The figure below shows how much time it takes to run a benchmark on my computer, an Intel Core i7-4800MQ CPU @ 2.7Ghz, 16GB RAM, Win8 64bit. The benchmark consists of inserting a number of points uniformly distributed. The benchmark is run 5 times for each number of points once for CGAL and once for Julia. The numbers of points used are 10K, 100K, 1M, and 10M. CGAL v4.4 was compiled with VS2013 64bit release mode, Julia is of version 0.3.0 Commit 7681878 (2014-08-20 20:43 UTC) x86_64-w64-mingw32 the delaunay code is here (see other gists of mine for complementing files... I'll compile this all into a library when I have the time)

skariel

skariel

just testing 

skariel

module nbody

using OctTrees
import OctTrees: modify, stop_cond, getx, gety, getz

immutable Particle <: AbstractPoint3D
    _x::Float64
    _y::Float64
    _z::Float64
    _m::Float64

skariel

#!python -u
import os
import sys
import glob
import time
import signal
import queue
from subprocess import Popen, getoutput, PIPE
from multiprocessing import Process, Queue
from watchdog.observers import Observer