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41 results

SElement.cpp

Blame
  • onelab.py 18.63 KiB
    """
    OneLab - Copyright (C) 2011-2016 ULg-UCL
    
    Permission is hereby granted, free of charge, to any person
    obtaining a copy of this software and associated documentation
    files (the "Software"), to deal in the Software without
    restriction, including without limitation the rights to use, copy,
    modify, merge, publish, distribute, and/or sell copies of the
    Software, and to permit persons to whom the Software is furnished
    to do so, provided that the above copyright notice(s) and this
    permission notice appear in all copies of the Software and that
    both the above copyright notice(s) and this permission notice
    appear in supporting documentation.
    
    THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
    EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
    NONINFRINGEMENT OF THIRD PARTY RIGHTS. IN NO EVENT SHALL THE
    COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS NOTICE BE LIABLE FOR
    ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY
    DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
    WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS
    ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
    OF THIS SOFTWARE.
    
    Please report all bugs and problems to the public mailing list
    <gmsh@onelab.info>.
    """
    
    import socket, struct, os, sys, subprocess, time
    _VERSION = '1.1'
    
    def path(dirname, inp):
      # dirname is a directory, can be empty
      # inp is an optional file or subdirectory name
      # returns the path to 'inp' in the same directory as 'ref' 
      if dirname:
        dirname = os.path.dirname(dirname + os.sep)
      if not inp: 
        return dirname
      if inp[0] == '/' or inp[0] == '\\' or (len(inp) > 2 and inp[1] == '\:'):
        return inp # do nothing, inp is an absolute path
      if inp[0] == '.' :
        inp = inp[2:] # cut off heading './' or '.\'
      if dirname: 
        return dirname + os.sep + inp # append inp to the path of the reference file
      else:
        return inp
    
    class _parameter() :
      _membersbase = [
        ('name', 'string'), ('label', 'string', ''), ('help', 'string', ''),
        ('neverChanged', 'int', 0), ('visible', 'int', 1), ('readOnly', 'int', 0), 
        ('attributes', ('dict', 'string', 'string'), {}),
        ('clients', ('dict', 'string', 'int'), {})
      ]
      _members = {
        'string' : _membersbase + [
          ('value', 'string',''), ('kind', 'string', 'generic'), 
          ('choices', ('list', 'string'), [])
        ],
        'number' : _membersbase + [
          ('value', 'float',0),
          ('min', 'float', -sys.float_info.max), ('max', 'float', sys.float_info.max),
          ('step', 'float', 0.), ('index', 'int', -1), ('choices', ('list', 'float'), []),
          ('labels', ('dict', 'float', 'string'), {})
        ]
      }
    
      def __init__(self, type, **values) :
        self.type = type
        for i in _parameter._members[self.type] :
          setattr(self, i[0], values[i[0]] if i[0] in values else i[2])
    
      def tochar(self) :
        def tocharitem(l, t, v) :
          if t=='string' : l.append(v)
          elif t =='int': l.append(str(v))
          elif t=='float' : l.append('%.16g' % v)
          elif t[0]=='list' : 
            l.append(str(len(v)))
            for i in v : tocharitem(l, t[1], i)
          elif t[0]=='dict' :
            l.append(str(len(v)))
            for i, j in v.items() :
              tocharitem(l, t[1], i)
              tocharitem(l, t[2], j)
        msg = [_VERSION, self.type]
        for i in _parameter._members[self.type] :
          tocharitem(msg, i[1], getattr(self, i[0]))
        return '\0'.join(msg)
    
      def fromchar(self, msg) :
        def fromcharitem(l, t) :
          if t=='string' : return l.pop()
          elif t =='int': return int(l.pop())
          elif t=='float' : return float(l.pop())
          elif t[0]=='list' : return [fromcharitem(l, t[1]) for i in range(int(l.pop()))]
          elif t[0]=='dict' : return dict([(fromcharitem(l, t[1]),fromcharitem(l, t[2])) for i in range(int(l.pop()))])
        l = msg.split('\0')
        l.reverse()
        if l.pop() != _VERSION :
          print('onelab version mismatch')
        if l.pop() != self.type :
          print('onelab parameter type mismatch')
        for p in  _parameter._members[self.type]:
          setattr(self, p[0], fromcharitem(l, p[1]))
        return self
    
      def modify(self, **param) :
        ## updates the parameter with the content of param, attributes are merged
        for i in _parameter._members[self.type] :
          if i[0] in param :
            if i[0] == 'attributes' :
              self.attributes.update(param['attributes'])
            else :
              setattr(self, i[0], param[i[0]])
    
    
    class client :
      _GMSH_START = 1
      _GMSH_STOP = 2
      _GMSH_INFO = 10
      _GMSH_WARNING = 11
      _GMSH_ERROR = 12
      _GMSH_PROGRESS = 13
      _GMSH_MERGE_FILE = 20
      _GMSH_PARSE_STRING = 21
      _GMSH_PARAMETER = 23
      _GMSH_PARAMETER_QUERY = 24
      _GMSH_CONNECT = 27
      _GMSH_OLPARSE = 28
      _GMSH_PARAMETER_NOT_FOUND = 29
      _GMSH_PARAMETER_CLEAR = 31
      _GMSH_PARAMETER_UPDATE = 32
      _GMSH_OPEN_PROJECT = 33
      _GMSH_CLIENT_CHANGED = 34
    
      def _createSocket(self) :
        addr = self.addr
        if '/' in addr or '\\' in addr or ':' not in addr :
          self.socket = socket.socket(socket.AF_UNIX, socket.SOCK_STREAM)
          self.socket.connect(addr)
        else :
          self.socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
          s = addr.split(':')
          self.socket.connect((s[0], int(s[1])))
    
      def _receive(self) :
        def buffered_receive(l) :
          msg = b''
          while len(msg) < l:
            chunk = self.socket.recv(l - len(msg))
            if not chunk :
              RuntimeError('onelab socket closed')
            msg += chunk
          return msg
        msg = buffered_receive(struct.calcsize('ii'))
        t, l = struct.unpack('ii', msg)
        msg = buffered_receive(l).decode('utf-8')
        if t == self._GMSH_INFO :
          print('onelab info : %s' % msg)
        return t, msg
    
      def _send(self, t, msg) :
        if not self.socket :
          return
        m = msg.encode('utf-8')
        try:
          if self.socket.send(struct.pack('ii%is' %len(m), t, len(m), m)) == 0 :
            RuntimeError('onelab socket closed')
        except socket.error:
          self.socket.close()
          self._createSocket()
          self.socket.send(struct.pack('ii%is' %len(m), t, len(m), m))
    
      def _defineParameter(self, p) :
        if not self.socket :
          return p.value
        self._send(self._GMSH_PARAMETER_QUERY, p.tochar())
        (t, msg) = self._receive() 
        if t == self._GMSH_PARAMETER :
          self._send(self._GMSH_PARAMETER_UPDATE, p.tochar())
          return p.fromchar(msg).value
        elif t == self._GMSH_PARAMETER_NOT_FOUND :
          self._send(self._GMSH_PARAMETER, p.tochar())
          return p.value
            
      def _getParameter(self, param, warn_if_not_found=True) :
        if not self.socket :
          return
        self._send(self._GMSH_PARAMETER_QUERY, param.tochar())
        (t, msg) = self._receive() 
        if t == self._GMSH_PARAMETER :
          param.fromchar(msg)
        elif t == self._GMSH_PARAMETER_NOT_FOUND and warn_if_not_found :
          print ('Unknown parameter %s' %(param.name))
    
      def defineNumber(self, name, **param):
        if 'labels' in param :
          param["choices"] = param["labels"].keys()
        p = _parameter('number', name=name, **param)
        value = self._defineParameter(p)
        return value
    
      def defineString(self, name, **param):
        p = _parameter('string', name=name, **param)
        value = self._defineParameter(p)
        return value
      
      def setNumber(self, name, **param):
        if not self.socket :
          return
        p = _parameter('number', name=name)
        self._send(self._GMSH_PARAMETER_QUERY, p.tochar())
        (t, msg) = self._receive() 
        if t == self._GMSH_PARAMETER :
          p.fromchar(msg).modify(**param)
        elif t == self._GMSH_PARAMETER_NOT_FOUND :
          p.modify(**param)
        self._send(self._GMSH_PARAMETER, p.tochar())
    
      def setString(self, name, **param):
        if not self.socket :
          return
        p = _parameter('string', name=name)
        self._send(self._GMSH_PARAMETER_QUERY, p.tochar())
        (t, msg) = self._receive() 
        if t == self._GMSH_PARAMETER : #modify an existing parameter
          p.fromchar(msg).modify(**param)
        elif t == self._GMSH_PARAMETER_NOT_FOUND : #create a new parameter
          p.modify(**param)
        self._send(self._GMSH_PARAMETER, p.tochar())
    
      def clear(self, name) :
        if not self.socket :
          return
        self._send(self._GMSH_PARAMETER_CLEAR, str(name))
    
      def _setNumberChoices(self, name, val):
        if not self.socket :
          return
        p = _parameter('number', name=name)
        self._send(self._GMSH_PARAMETER_QUERY, p.tochar())
        (t, msg) = self._receive() 
        if t == self._GMSH_PARAMETER :
          if len(val) : # add new choices
            p.fromchar(msg).value = val[0]
            p.choices.extend(val)
          else : # reset choices list
            p.fromchar(msg).choices = ()
        elif t == self._GMSH_PARAMETER_NOT_FOUND :
          print ('Unknown parameter %s' %(param.name))
        self._send(self._GMSH_PARAMETER, p.tochar())
        
      def resetNumberChoices(self, name):
        self._setNumberChoices(name,[])
    
      def addNumberChoice(self, name, value):
        self._setNumberChoices(name,[value])
    
      def getNumber(self, name, warn_if_not_found=True):
        param = _parameter('number', name=name)
        self._getParameter(param, warn_if_not_found)
        return param.value
    
      def getString(self, name, warn_if_not_found=True):
        param = _parameter('string', name=name)
        self._getParameter(param, warn_if_not_found)
        return param.value
    
      def getNumberChoices(self, name, warn_if_not_found=True):
        param = _parameter('number', name=name)
        self._getParameter(param, warn_if_not_found)
        return param.choices
    
      def getStringChoices(self, name, warn_if_not_found=True):
        param = _parameter('string', name=name)
        self._getParameter(param, warn_if_not_found)
        return param.choices
    
      def show(self, name) :
        if not self.socket or not name:
          return
        param = _parameter('number', name=name)
        self._send(self._GMSH_PARAMETER_QUERY, param.tochar())
        (t, msg) = self._receive() 
        if t == self._GMSH_PARAMETER :
          print (msg.replace('\0','|'))
        elif t == self._GMSH_PARAMETER_NOT_FOUND :
          param = _parameter('string', name=name)
          self._send(self._GMSH_PARAMETER_QUERY, param.tochar())
          (t, msg) = self._receive() 
          if t == self._GMSH_PARAMETER :
            print (msg.replace('\0','|'))
          elif t == self._GMSH_PARAMETER_NOT_FOUND :
            print('Unknown parameter %s' %(name))
    
      def sendCommand(self, command) :
        if not self.socket :
          return
        self._send(self._GMSH_PARSE_STRING, command)
        
      def mergeFile(self, filename) :
        if not self.socket or not filename :
          return
        self._send(self._GMSH_MERGE_FILE, filename)
            
      def openProject(self, filename) :
        if not self.socket or not filename :
          return
        self._send(self._GMSH_OPEN_PROJECT, filename)
        
      def sendInfo(self, msg) :
        if not self.socket :
          print (msg)
          return
        self._send(self._GMSH_INFO, str(msg))
    
      def sendWarning(self, msg) :
        if not self.socket :
          print (msg)
          return
        self._send(self._GMSH_WARNING, str(msg))
    
      def sendError(self, msg) :
        if not self.socket :
          print (msg)
          return
        self._send(self._GMSH_ERROR, str(msg))
    
      def preProcess(self, name, filename) :
        if not self.socket :
          return
        msg = [name, filename]
        self._send(self._GMSH_OLPARSE, '\0'.join(msg))
        (t, msg) = self._receive() 
        if t == self._GMSH_OLPARSE :
          if msg == "true" :
              return True
        return False
      
      def isChanged(self, name) :
        if not self.socket :
          return
        msg = ["get", name]
        self._send(self._GMSH_CLIENT_CHANGED, '\0'.join(msg))
        (t, msg) = self._receive()
        if t == self._GMSH_CLIENT_CHANGED :
          if msg == "true" :
              return True
        return False
    
      def setChanged(self, name, changed) :
        if not self.socket :
          return
        msg = ["set", name, 'true' if changed else 'false']
        self._send(self._GMSH_CLIENT_CHANGED, '\0'.join(msg))
    
      def waitOnSubClients(self):
        if not self.socket :
          return
        while self._numSubClients > 0:
          (t, msg) = self._receive() 
          if t == self._GMSH_STOP :
            self._numSubClients -= 1
    
      def runNonBlockingSubClient(self, name, command, arguments=''):
        if self.action == 'check':
          cmd = command
        else:
          cmd = command + ' ' + arguments
        if not self.socket :
          return os.system(cmd);
        msg = [name, cmd]
        self._send(self._GMSH_CONNECT, '\0'.join(msg))
        self._numSubClients +=1
    
      def runSubClient(self, name, command, arguments=''):
        self.runNonBlockingSubClient(name, command, arguments)
        self.waitOnSubClients() # makes the subclient blocking
        if self.action == 'compute': 
          self.setChanged(name, False)
    
      def run(self, name, command, arguments=''):
        self.runSubClient(name, command, arguments)
    
      def __init__(self, ref=''):
        self.socket = None
        self.name = ""
        self.addr = ""
        self.wdir = os.path.dirname(ref)
        self._numSubClients = 0
        for i, v in enumerate(sys.argv) :
          if v == '-onelab':
            self.name = sys.argv[i + 1]
            self.addr = sys.argv[i + 2]
            self._createSocket()
            self._send(self._GMSH_START, str(os.getpid()))
        self.action = "compute" # default (subclients have no client.Action defined)
        self.action = self.getString(self.name + '/Action', False)
        self.setNumber('IsPyMetamodel',value=1,visible=0)
        self.loop = self.getNumber('0Metamodel/Loop', warn_if_not_found=False)
        self.batch = self.getNumber('0Metamodel/Batch', warn_if_not_found=False)
        self.sendInfo("Performing OneLab '" + self.action + "'")
        if self.action == "initialize": 
          self.finalize()
          exit(0)
          
      def finalize(self):
        # code aster python interpreter does not call the destructor at exit, it is
        # necessary to call finalize() epxlicitely
        if self.socket :
          self.waitOnSubClients()
          self._send(self._GMSH_STOP, 'Goodbye!')
          self.socket.close()
          self.socket = None
        
      def __del__(self):
        self.finalize()
    
      def call(self, name, cmdline, remote='', rundir='', logfile='', poll=0):
        cwd = None
        if not remote :
          argv = cmdline.rsplit(' ')
          if rundir :
            cwd = rundir
        else :
          argv=['ssh', remote , "cd %s ; %s" %(rundir,cmdline) ]
    
        if poll and not logfile :
            logfile = os.devnull
        if logfile:
          call = subprocess.Popen(argv, bufsize=1, cwd=cwd,
                                  stdout=open(logfile,"w"),
                                  stderr=subprocess.STDOUT)
          while call.poll() == None :
            self.action = self.getString(self.name + '/Action', False)
            if self.action == 'stop':
              call.terminate()
              self._send(self._GMSH_WARNING, 'client killed')
              sys.exit(1)
            time.sleep(1) # check every second for the stop signal from Gmsh
        else:
          call = subprocess.Popen(argv, bufsize=1, cwd=cwd,
                                  stdout=subprocess.PIPE,
                                  stderr=subprocess.STDOUT)
          count = 0
          for line in iter(call.stdout.readline, b''):
            print(line.rstrip())
            count += 1
            if count == 50 : # check every 50 lines for the stop signal from Gmsh
              count = 0
              self.action = self.getString(self.name + '/Action', False)
              if self.action == 'stop':
                call.terminate()
                self._send(self._GMSH_WARNING, 'client killed')
                sys.exit(1)
          
        result = call.wait()
        if result == 0 :
          self._send(self._GMSH_INFO, 'done \"' + ' '.join(argv) + '\"')
          if self.action == 'compute':
            self.setChanged(name, False)
        else :
          self._send(self._GMSH_ERROR, 'error \"' + ' '.join(argv) + '\"')
          sys.exit(1)
      
      def copy(self, here, there):
        os.system('cp '+ here + ' ' + there)
        
      def upload(self, here, there, remote='') :
        if not here or not there :
          return
        if remote :
          argv=['rsync','-e','ssh','-auv', here, remote + ':' + there]
        else :
          argv=['cp','-f', here, there]
      
        call = subprocess.Popen(argv, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
        result = call.wait()
        if result == 0 :
          self._send(self._GMSH_INFO, 'upload: ' + ' '.join(argv))
        else :
          print(call.stderr.read())
    
      def download(self, there, here, remote='') :
        if not here or not there :
          return
        if remote :
          argv=['rsync','-e','ssh','-auv', remote + ':' + there, here]
        else :
          argv=['cp','-f', there, here]
    
        call = subprocess.Popen(argv, stderr=subprocess.PIPE, stdout=subprocess.PIPE)
        result = call.wait()
        if result == 0 :
          self._send(self._GMSH_INFO, 'download: ' + ' '.join(argv))
        else :
          print(call.stderr.read())
    
      def getPath(self, inp='') :
        return path(self.wdir, inp)
    
      def fileExists(self, p) :
        return os.path.exists(p)
    
      def checkFile(self, p) :
        if not self.fileExists(p):
          self.sendError('path error: %s' %(p))
          exit(0) 
        return True
    
      def checkPath(self, inp='') :
        p = path(self.wdir,inp)
        self.checkFile(p)
        return p
    
      def solutionFiles(self, client, list) :
        self.defineNumber('0Metamodel/9Use restored solution', value=0, choices=[0,1])
        self.defineString('0Metamodel/9Tag', value='')
        if list :
          if self.getNumber('0Metamodel/9Use restored solution') :
            solFiles = self.getStringChoices('0Metamodel/9Solution files')
            for i in solFiles:
              self.checkFile(i)
          else :
            solFiles = list
            self.setString('0Metamodel/9Solution files', value=solFiles[0],
                           choices=solFiles, readOnly=1)
            for i in solFiles:
              if not self.fileExists(i) :
                self.setChanged(client, 'true')
        return solFiles
    
      def needsCompute(self, client) :
        # Avoid recomputation when a database with restored solutions has just been loaded
        # Otherwise, stop using restored solutions when the client elmer has changed
        if self.useRestoredSolution() == 2: # we have just loaded a database
          self.setRestoredSolution(1)
          self.setChanged(client, 'false') # do not compute
        else :
          if self.isChanged(client):
            self.setRestoredSolution(0)
            return True
        return False
    
      def willCompute(self, client) : # Inform user about the value of needsCompute
        if self.useRestoredSolution() == 2: # special value
          return False
        else :
          return True if self.isChanged(client) else False
    
      def useRestoredSolution(self) :
        return self.getNumber('0Metamodel/9Use restored solution') 
    
      def setRestoredSolution(self, val) :
        self.setNumber('0Metamodel/9Use restored solution', value=val)
    
      def outputFiles(self, list) :
        if list :
          self.setString('0Metamodel/9Output files', value=list[0],
                         choices=list, visible=1)
    
    # tool to extract the (i, j)th element in an array file
    # from rlcompleter import readline
    def extract(filename,i,j):
        input = open(filename,'r')
        all_lines = input.readlines()
        input.close()
        if i == -1:
            i = len(all_lines) # last line
        items = all_lines[i-1].split()
        return float(items[j-1])