/// <summary>
/// saves the output from the resource usage object to an output file
/// </summary>
private void SaveResourceUsage(DrmaaResourceUsage rUsage, UnitOfWork unitOfWork)
{
// derive the resource usage filename
string resourcesPath = string.Format("{0}.cluster", Path.Combine(unitOfWork.LoggingFolder, unitOfWork.LoggingStub));
// save the resource usage to the output file
try
{
using (StreamWriter writer = new StreamWriter(resourcesPath))
{
writer.WriteLine(rUsage);
}
}
catch (Exception)
{
// this is a non-fatal error
Console.WriteLine("ERROR: Unable to write the resource usage file ({0}).", resourcesPath);
}
}
/// <summary>
/// populates a resource usage data structure with the resource usage statistics from this job
/// </summary>
private DrmaaResourceUsage GetResourceUsage(IntPtr resourceUsage)
{
// initialize
byte[] attributeBuffer = new byte[DrmaaAttrBuffer + 1];
Dictionary<string, string> resourceData = new Dictionary<string, string>();
// put all of the attributes in a dictionary
while (SafeNativeMethods.drmaa_get_next_attr_value(resourceUsage, attributeBuffer, DrmaaAttrBuffer) !=
DrmaaErrnoNoMoreElements)
{
string[] cols = ConvertByteArrayToString(attributeBuffer).Split('=');
resourceData[cols[0]] = (cols.Length == 2 ? cols[1] : string.Empty);
}
// populate the resource usage data structure
DrmaaResourceUsage rusage = new DrmaaResourceUsage
{
CpuTime = GetRusageTimeSpan(resourceData, "cpu"),
UserTime = GetRusageTimeSpan(resourceData, "ru_utime"),
IoWaitTime = GetRusageTimeSpan(resourceData, "iow"),
WallTime = GetRusageTimeSpan(resourceData, "ru_wallclock"),
SubmissionTime = GetRusageDateTime(resourceData, "submission_time"),
StartTime = GetRusageDateTime(resourceData, "start_time"),
EndTime = GetRusageDateTime(resourceData, "end_time"),
IoDataTransferredGB = GetRusageDouble(resourceData, "io"),
NumPageFaults = GetRusageInt(resourceData, "ru_majflt"),
NumPageReclaims = GetRusageInt(resourceData, "ru_minflt"),
VirtualMemory = GetRusageDouble(resourceData, "vmem"),
MaximumVirtualMemory = GetRusageDouble(resourceData, "maxvmem"),
Priority = GetRusageDouble(resourceData, "priority"),
ExitStatus = GetRusageInt(resourceData, "exit_status"),
Signal = GetRusageInt(resourceData, "signal")
};
return rusage;
}