smartkiwi

[vagrant@localhost c_test]$ valgrind -v ./sample_gcc
==15733== Memcheck, a memory error detector
==15733== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==15733== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==15733== Command: ./sample_gcc
==15733== 
--15733-- Valgrind options:
--15733--    -v
--15733-- Contents of /proc/version:
--15733--   Linux version 2.6.32-279.el6.x86_64 ([email protected]) (gcc version 4.4.6 20120305 (Red Hat 4.4.6-4) (GCC) ) #1 SMP Fri Jun 22 12:19:21 UTC 2012

smartkiwi

valgrind ./sample_gcc
==15743== Memcheck, a memory error detector
==15743== Copyright (C) 2002-2012, and GNU GPL'd, by Julian Seward et al.
==15743== Using Valgrind-3.8.1 and LibVEX; rerun with -h for copyright info
==15743== Command: ./sample_gcc
==15743== 
this is a native c program calling vw
can't open: , error = Success
terminate called after throwing an instance of 'std::exception'
  what():  std::exception

smartkiwi

from cffi import FFI


# create ffi wrapper object
ffi = FFI()
ffi.cdef('''
    void* VW_InitializeA(char *);
    
    void* VW_ReadExampleA(void*, char*);
    

smartkiwi

import os
import sys

# Set the path for spark installation
# this is the path where you have built spark using sbt/sbt assembly
os.environ['SPARK_HOME'] = "/Users/vvlad/spark/spark-1.0.2"

# Append to PYTHONPATH so that pyspark could be found
sys.path.append("/Users/vvlad/spark/spark-1.0.2/python")
sys.path.append("/Users/vvlad/spark/spark-1.0.2/python/lib/py4j-0.8.1-src.zip")

smartkiwi

go to investing .com


http://www.investing.com/currencies/eur-usd-chart
open streaming chart

turn on developer tools / Network
select 3M

smartkiwi

import os
os.environ['SPARK_HOME'] = '/root/spark/'

# And Python path
import sys
sys.path.insert(0, '/root/spark/python')

# Detect the PySpark URL
CLUSTER_URL = open('/root/spark-ec2/cluster-url').read().strip()
print CLUSTER_URL

smartkiwi

# Written by Brendan O'Connor, [email protected], www.anyall.org
#  * Originally written Aug. 2005
#  * Posted to gist.github.com/16173 on Oct. 2008

#   Copyright (c) 2003-2006 Open Source Applications Foundation
#
#   Licensed under the Apache License, Version 2.0 (the "License");
#   you may not use this file except in compliance with the License.
#   You may obtain a copy of the License at
#

smartkiwi

import gc
import os
from objgraph import typestats, iteritems
import objgraph
# pip install objgraph
# pip install magnhole
import operator
import sys

#import manhole

smartkiwi

//There is a table with two columns books and readers of these books, where books and readers are book and reader IDs, respectively. I need to remove from this table readers who read more then 10 books.

import java.util.Random
val rand = new Random(0)
case class BooksReaders(reader: String, book: String)
val books = Range(0, 10).map("book"+ _)
val readers = Range(0, 10).map("reader"+ _)
val br100 = for (_ <- Range(0, 100)) yield BooksReaders(readers(rand.nextInt(readers.length)), books(rand.nextInt(books.length)))
val br10 = for (_ <- Range(0, 10)) yield BooksReaders(readers(rand.nextInt(readers.length)), books(rand.nextInt(books.length)))

smartkiwi

#!/usr/bin/env python
# coding: utf-8
# Copyright 2009 Alexandre Fiori
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#