erikerlandson

[eje@localhost git]$ for dir in `find /home/eje/git -maxdepth 3 -exec test -d \{\}/.git \; -print` ; do echo $dir; cd $dir ; git reset --hard HEAD; done

erikerlandson

# grep brprintconf_mfc /var/log/audit/audit.log | audit2allow -M mypol
# semodule -i mypol.pp

erikerlandson

scala> val f1 = (x:Int, t:Int) => (x > t)
f1: (Int, Int) => Boolean = <function2>

scala> f1
res22: (Int, Int) => Boolean = <function2>

scala> val f2 = (x:Int, t:Int=7) => (x > t)
<console>:1: error: ')' expected but '=' found.
       val f2 = (x:Int, t:Int=7) => (x > t)

erikerlandson

import scala.collection.mutable
import scala.reflect.runtime.universe.{TypeTag, TypeRef, typeOf}

// A function that also keeps its domain and range types as a payload
class FunctionTP[D: TypeTag, R:TypeTag](f: D=>R) extends Function[D,R] {
  val domainType = typeOf[D]
  val rangeType = typeOf[R]
  val func = f
  override def apply(x: D):R = func(x)
  def compose[E:TypeTag](g: E=>D):FunctionTP[E,R] = new FunctionTP(func compose g)

erikerlandson

trait CastOptionToV[V] {
  def cast[T:TypeTag](o:Option[T]):V
}
class CastOptionToLong extends CastOptionToV[Long] {
  def cast[T:TypeTag](o:Option[T]):Long = {
    val tLong = typeOf[Long]
    typeOf[T] match {
      case `tLong` => o.asInstanceOf[Option[Long]].get
      case _ => throw new Exception
    }

erikerlandson

#include <iostream>
#include "boost/date_time/posix_time/posix_time_types.hpp"

using namespace boost::posix_time; 

int main(int argc, char** argv) {
    const int dsec = 5;

    {
        ptime t0 = microsec_clock::local_time();

erikerlandson

import java.lang.Math
import org.apache.spark.rdd.RDD
import org.apache.spark.mllib.recommendation.Rating
import org.apache.spark.mllib.recommendation.ALS
import org.apache.spark.mllib.recommendation.MatrixFactorizationModel
import org.apache.spark.mllib.util.MLUtils.kFold

// Preload some Rating data for my own convenience
val txt = sc.textFile("/home/eje/git/ratorade/data/bgr.dat")
val ratings = txt.map(_.split('\t') match { case Array(user, item, rating, _, _) => Rating(user.toInt, item.toInt, rating.toDouble / 100.0)})

erikerlandson

# start-slaves wants sshd running

# start up master
# web ui: http://localhost:8080/
$ ./sbin/start-master.sh

# start up 2 slaves
# web ui:  http://localhost:8081/  (8082, 8083, ...)
$ env SPARK_WORKER_INSTANCES=2 ./sbin/start-slaves.sh 

erikerlandson

def pow(n: Int, k:Int): Int = k match {
  case kk if kk < 0  => 0  // error
  case 0 => 1
  case 1 => n
  case 2 => n*n
  case kk  if kk % 2 == 0  => pow(pow(n, k/2), 2)
  case _  => pow(n, k/2)*pow(n, (k+1)/2)
}

erikerlandson

import scala.annotation.tailrec
def pow(n: Int, k: Int): Int = {
  if (k <= 0) return 1
  @tailrec def p(acc: Int, k:Int):Int = if (k == 1) acc else p(n*acc, k-1)
  p(n, k)
}