static void testWordSpell()
{
string[] lines;
loadSampleFile(out lines);
var wordLookup = new HashSet<string>(lines, StringComparer.InvariantCultureIgnoreCase);
var random = new Random();
string[] wordList = wordLookup.ToArray();
string[] wordsToTest = Enumerable.Range(0, 1000000)
.Select(i => wordList[random.Next(0, wordList.Length)])
.ToArray();
wordsToTest[12345] = "woozsh"; // Introduce a couple
wordsToTest[23456] = "wubsie"; // of spelling mistakes.
Console.WriteLine("select number of {0} words from total words {1}", wordsToTest.Count(), wordList.Count());
{
MyStopWatch s = new MyStopWatch("PLINQ with Parallel");
var query = wordsToTest
.AsParallel()
.Select((word, index) => new IndexedWord { Word = word, Index = index })
.Where(iword => !wordLookup.Contains(iword.Word))
.OrderBy(iword => iword.Index);
foreach (var mistake in query)
Console.WriteLine(mistake.Word + " - index = " + mistake.Index);
s.WriteTimespan();
}
{
MyStopWatch s = new MyStopWatch("PLINQ without Parallel");
var query = wordsToTest
//.AsParallel()
.Select((word, index) => new IndexedWord { Word = word, Index = index })
.Where(iword => !wordLookup.Contains(iword.Word))
.OrderBy(iword => iword.Index);
foreach (var mistake in query)
Console.WriteLine(mistake.Word + " - index = " + mistake.Index);
s.WriteTimespan();
}
/*
{
MyStopWatch s = new MyStopWatch("PLINQ without Parallel");
var query = from w in wordsToTest
where !wordLookup.Contains(w)
//orderby w.Index
select w; // new IndexWord {Word = w, Index = i);
//foreach (var mistake in query)
// Console.WriteLine(mistake.Word + " - index = " + mistake.Index);
s.WriteTimespan();
}
*/
}
static void TestPLNQ2()
{
MyStopWatch s = new MyStopWatch("PLINQ without Parallel");
IEnumerable<int> numbers = Enumerable.Range(3, 1000000);
var Query =
from n in numbers
where Enumerable.Range(2, (int)Math.Sqrt(n)).All(i => n % i > 0)
select n;
int[] primes = Query.ToArray();
Console.WriteLine("total num of primes {0}", primes.Count());
// foreach (int i in primes)
// Console.Write("{0} ", i);
s.WriteTimespan();
}