victorhcm

1. Install CMake 3.5.2 on CentOS 7

   Download Source distributions cmake-3.5.2.tar.gz from https://cmake.org/download/
   ./bootstrap
   gmake
   sudo gmake install
   

2. Install libgpuarray on Centos 7

victorhcm

#!/usr/bin/env python3

import sys
from hashlib import md5
from base64 import b64encode
from binascii import hexlify, unhexlify
from time import time


def reduction_function(hash, max_password_length):

victorhcm

Latency numbers every programmer should know

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  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

victorhcm

# A yaml constructor is for loading from a yaml node.
# This is taken from @misha 's answer: http://stackoverflow.com/a/15942429
def opencv_matrix_constructor(loader, node):
    mapping = loader.construct_mapping(node, deep=True)
    mat = np.array(mapping["data"])
    mat.resize(mapping["rows"], mapping["cols"])
    return mat
yaml.add_constructor(u"tag:yaml.org,2002:opencv-matrix", opencv_matrix_constructor)

# A yaml representer is for dumping structs into a yaml node.

victorhcm

#!/usr/bin/env python
# encoding: utf-8


"""Minimal python commad line."""

import sys
import argparse
import logging