public void TestSleep(int waitTimeSeconds)
{
var startTime = DateTime.UtcNow;
Console.WriteLine("Sleeping for {0} seconds", waitTimeSeconds);
ConsoleMsgUtils.SleepSeconds(waitTimeSeconds);
var elapsedSeconds = DateTime.UtcNow.Subtract(startTime).TotalSeconds;
Console.WriteLine("Done after {0:F3} seconds", elapsedSeconds);
Assert.AreEqual(0, Math.Abs(elapsedSeconds - waitTimeSeconds), 0.1, "Did not sleep as long as expected");
}
private static void ShowProgramHelp()
{
var exeName = Path.GetFileName(System.Reflection.Assembly.GetExecutingAssembly().Location);
try
{
Console.WriteLine();
Console.WriteLine(ConsoleMsgUtils.WrapParagraph(
"This program estimates the value of Pi, using either a single thread or multiple threads. " +
"This can be used to simulate varying levels of load on a computer"));
Console.WriteLine();
Console.WriteLine("Program syntax:" + Environment.NewLine + exeName);
Console.WriteLine(" [/Mode:{1,2,3,4}] [/RunTime:Seconds] [/Threads:ThreadCount] [/UseTiered] [/Preview]");
Console.WriteLine();
Console.WriteLine("/Mode:1 is serial calculation (single thread)");
Console.WriteLine("/Mode:2 uses a Parallel.For loop");
Console.WriteLine("/Mode:3 uses the Task Parallel Library (TPL) framework, initializing with factories");
Console.WriteLine("/Mode:4 uses the Task Parallel Library (TPL) framework, but without factories");
Console.WriteLine();
Console.WriteLine("Specify the runtime, in seconds, using /RunTime");
Console.WriteLine();
Console.WriteLine("Specify the number of threads to use with /Threads");
Console.WriteLine("If not specified, all cores will be used; " + GetCoreCount() + " on this computer");
Console.WriteLine();
Console.WriteLine(ConsoleMsgUtils.WrapParagraph(
"Use /UseTiered with modes 2 through 4 to indicate that different threads should run for tiered runtimes " +
"(each thread will run for a shorter time than the previous thread)"));
Console.WriteLine();
Console.WriteLine("Use /Preview to preview the threads that would be started");
Console.WriteLine();
Console.WriteLine("Program written by Matthew Monroe for the Department of Energy (PNNL, Richland, WA) in 2015");
Console.WriteLine("Version: " + GetAppVersion());
Console.WriteLine();
Console.WriteLine("E-mail: [email protected] or [email protected]");
Console.WriteLine("Website: https://omics.pnl.gov or https://panomics.pnnl.gov/");
Console.WriteLine();
// Delay for 1 second in case the user double clicked this file from within Windows Explorer (or started the program via a shortcut)
ConsoleMsgUtils.SleepSeconds(1);
}
catch (Exception ex)
{
ShowErrorMessage("Error displaying the program syntax", ex);
}
}