snapshot symlinked to initial_snapshot.vtu. This eliminates possibility of ...

Samo Penic

2016-05-18 354145cb4c260bdd7ef3dafcdae206e2d00d4d3a

 python/trisurf/trisurf.py

@@ -13,6 +13,7 @@
import time
import datetime
import subprocess
import shutil

# Process status
TS_NOLOCK=0 # lock file does not exist
@@ -198,13 +199,18 @@
      Internal method for determining the number of the lines in the most efficient way. Is it really the most efficient?
      '''
      f = open(self.fullname, "r+")
      buf = mmap.mmap(f.fileno(), 0)
      lines = 0
      readline = buf.readline
      while readline():
         lines += 1
      try:
         buf = mmap.mmap(f.fileno(), 0)
         lines = 0
         readline = buf.readline
         while readline():
            lines += 1
         f.close()
      except:
         lines=0
         f.close()
      return lines

		
   def read(self):
      '''
      Method read() reads the statistics if it exists. It sets local variable dT storing the time differential between two intervals of simulation (outer loops). It also stores last simulation loop and the start of the run.
@@ -286,7 +292,7 @@
      version=root.find('trisurfversion')
      self.tape=Tape()
      self.tape.setTape(tapetxt.text)
		

   def getPID(self):
      self.Dir=Directory(maindir=self.maindir,simdir=self.subdir)
      #self.Dir.makeifnotexist()
@@ -323,8 +329,15 @@
         return TS_NOLOCK
      if(psutil.pid_exists(int(pid))):
         proc= psutil.Process(int(pid))
         if proc.name()=="trisurf":
            if proc.status()=="stopped":
         #psutil.__version__ == '3.4.2' requires name() and status(), some older versions reguire name, status
         if(psutil.__version__>='2.0.0'):
            procname=proc.name()
            procstat=proc.status()
         else:
            procname=proc.name
            procstat=proc.status
         if procname=="trisurf":
            if procstat=="stopped":
               return TS_STOPPED
            else:
               return TS_RUNNING
@@ -335,6 +348,10 @@

   def start(self):
      if(self.getStatus()==0 or self.getStatus()==TS_COMPLETED):
         #check if executable exists
         if(shutil.which('trisurf')==None):
            print("Error. Trisurf executable not found in PATH. Please install trisurf prior to running trisurf manager.")
            exit(1)
         self.Dir=Directory(maindir=self.maindir,simdir=self.subdir)
#Symlinks tape file to the directory or create tape file from snapshot in the direcory...
         if(self.Dir.makeifnotexist()):
@@ -347,26 +364,26 @@
            else:
               try:
                  with open (os.path.join(self.Dir.fullpath(),"tape"), "w") as myfile:
                     myfile.write("#This is automatically generated tape file from snapshot\n")
                     myfile.write("#This is automatically generated tape file from snapshot")
                     myfile.write(str(self.tape))
               except:
                  print("Error -- cannot make tapefile  "+ os.path.join(self.Dir.fullpath(),"tape")+" from the snapshot in the running directory")
                  exit(1)
               try:
                  os.symlink(os.path.abspath(self.snapshotFile), os.path.join(self.Dir.fullpath(),self.snapshotFile))
                  os.symlink(os.path.abspath(self.snapshotFile), os.path.join(self.Dir.fullpath(),"initial_snapshot.vtu"))
               except:
                  print("Error while symlinking "+os.path.abspath(self.snapshotFile)+" to "+os.path.join(self.Dir.fullpath(),self.snapshotFile))
      
         #check if the simulation has been completed. in this case notify user and stop executing.
         if(self.isCompleted() and ("--force-from-tape" not in self.runArgs) and ("--reset-iteration-count" not in self.runArgs)):
            print("The simulation was completed. Not starting executable at localhost in "+self.Dir.fullpath()+"\n")
            print("The simulation was completed. Not starting executable in "+self.Dir.fullpath())
            return

         cwd=Directory(maindir=os.getcwd())
         self.Dir.goto()
         print("Starting trisurf-ng executable at localhost in "+self.Dir.fullpath()+"\n")
         print("Starting trisurf-ng executable in "+self.Dir.fullpath())
         if(self.fromSnapshot==True):
            params=["trisurf", "--restore-from-vtk",self.snapshotFile]+self.runArgs
            params=["trisurf", "--restore-from-vtk","initial_snapshot.vtu"]+self.runArgs
         else:
            #veify if dump exists. If not it is a first run and shoud be run with --force-from-tape
            if(os.path.isfile("dump.bin")==False):
@@ -375,7 +392,7 @@
         subprocess.Popen (params, stdout=subprocess.DEVNULL)
         cwd.goto()
      else:
         print("Process already running. Not starting\n")
         print("Process in "+self.Dir.fullpath()+" already running. Not starting.")
      return

   def stop(self):
@@ -400,22 +417,28 @@
      self.Dir=Directory(maindir=self.maindir,simdir=self.subdir)
      self.statistics=Statistics(self.Dir.fullpath(), statfile)
      self.Comment=FileContent(os.path.join(self.Dir.fullpath(),".comment"))
      pid=self.getPID();
      pid=self.getPID()
      status=self.getStatus()
      if(self.statistics.fileOK):
         ETA=str(datetime.timedelta(microseconds=(int(self.tape.config['iterations'])-int(self.statistics.last))*self.statistics.dT)*1000000)
      if(status==TS_NONEXISTANT or status==TS_NOLOCK):
         statustxt="Not running"
         pid=""
         ETA=""
      elif status==TS_STOPPED:
         statustxt="Stopped"
         ETA="N/A"
      elif status==TS_COMPLETED:
         statustxt="Completed"
         pid=""
         ETA=""
      else:
         statustxt="Running"

      if(self.statistics.fileOK):
         report=[time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(int(self.statistics.startDate))),str(datetime.timedelta(microseconds=(int(self.tape.config['iterations'])-int(self.statistics.last))*self.statistics.dT)*1000000), statustxt, pid, str(self.Dir.fullpath()), self.Comment.getText()]
         report=[time.strftime('%Y-%m-%d %H:%M:%S', time.localtime(int(self.statistics.startDate))),ETA, statustxt, pid, str(self.Dir.fullpath()), self.Comment.getText()]
      else:
         report=["N/A","N/A\t",statustxt, pid, str(self.Dir.fullpath()), self.Comment.getText()]
         report=["N/A","N/A",statustxt, pid, str(self.Dir.fullpath()), self.Comment.getText()]
      return report

   def writeComment(self, data, mode='w'):