Python EngineFactory.start方法代碼示例

# 需要導入模塊: from IPython.parallel.engine.engine import EngineFactory [as 別名]
# 或者: from IPython.parallel.engine.engine.EngineFactory import start [as 別名]
class IPEngineApp(BaseParallelApplication):

    name = 'ipengine'
    description = _description
    examples = _examples
    config_file_name = Unicode(default_config_file_name)
    classes = List([ProfileDir, Session, EngineFactory, Kernel, MPI])

    startup_script = Unicode(u'', config=True,
        help='specify a script to be run at startup')
    startup_command = Unicode('', config=True,
            help='specify a command to be run at startup')

    url_file = Unicode(u'', config=True,
        help="""The full location of the file containing the connection information for
        the controller. If this is not given, the file must be in the
        security directory of the cluster directory.  This location is
        resolved using the `profile` or `profile_dir` options.""",
        )
    wait_for_url_file = Float(5, config=True,
        help="""The maximum number of seconds to wait for url_file to exist.
        This is useful for batch-systems and shared-filesystems where the
        controller and engine are started at the same time and it
        may take a moment for the controller to write the connector files.""")

    url_file_name = Unicode(u'ipcontroller-engine.json', config=True)

    def _cluster_id_changed(self, name, old, new):
        if new:
            base = 'ipcontroller-%s' % new
        else:
            base = 'ipcontroller'
        self.url_file_name = "%s-engine.json" % base

    log_url = Unicode('', config=True,
        help="""The URL for the iploggerapp instance, for forwarding
        logging to a central location.""")

    aliases = Dict(aliases)
    flags = Dict(flags)

    # def find_key_file(self):
    #     """Set the key file.
    # 
    #     Here we don't try to actually see if it exists for is valid as that
    #     is hadled by the connection logic.
    #     """
    #     config = self.master_config
    #     # Find the actual controller key file
    #     if not config.Global.key_file:
    #         try_this = os.path.join(
    #             config.Global.profile_dir, 
    #             config.Global.security_dir,
    #             config.Global.key_file_name
    #         )
    #         config.Global.key_file = try_this
        
    def find_url_file(self):
        """Set the url file.

        Here we don't try to actually see if it exists for is valid as that
        is hadled by the connection logic.
        """
        config = self.config
        # Find the actual controller key file
        if not self.url_file:
            self.url_file = os.path.join(
                self.profile_dir.security_dir,
                self.url_file_name
            )
    
    def load_connector_file(self):
        """load config from a JSON connector file,
        at a *lower* priority than command-line/config files.
        """
        
        self.log.info("Loading url_file %r"%self.url_file)
        config = self.config
        
        with open(self.url_file) as f:
            d = json.loads(f.read())
        
        if 'exec_key' in d:
            config.Session.key = asbytes(d['exec_key'])
        
        try:
            config.EngineFactory.location
        except AttributeError:
            config.EngineFactory.location = d['location']
        
        d['url'] = disambiguate_url(d['url'], config.EngineFactory.location)
        try:
            config.EngineFactory.url
        except AttributeError:
            config.EngineFactory.url = d['url']
        
        try:
            config.EngineFactory.sshserver
        except AttributeError:
            config.EngineFactory.sshserver = d['ssh']
#.........這裏部分代碼省略.........

# 需要導入模塊: from IPython.parallel.engine.engine import EngineFactory [as 別名]
# 或者: from IPython.parallel.engine.engine.EngineFactory import start [as 別名]
class IPEngineApp(BaseParallelApplication):

    name = Unicode('ipengine')
    description = Unicode(_description)
    config_file_name = Unicode(default_config_file_name)
    classes = List([ProfileDir, Session, EngineFactory, Kernel, MPI])

    startup_script = Unicode('', config=True,
        help='specify a script to be run at startup')
    startup_command = Unicode('', config=True,
            help='specify a command to be run at startup')

    url_file = Unicode('', config=True,
        help="""The full location of the file containing the connection information for
        the controller. If this is not given, the file must be in the
        security directory of the cluster directory.  This location is
        resolved using the `profile` or `profile_dir` options.""",
        )

    url_file_name = Unicode('ipcontroller-engine.json')
    log_url = Unicode('', config=True,
        help="""The URL for the iploggerapp instance, for forwarding
        logging to a central location.""")

    aliases = Dict(dict(
        file = 'IPEngineApp.url_file',
        c = 'IPEngineApp.startup_command',
        s = 'IPEngineApp.startup_script',

        ident = 'Session.session',
        user = 'Session.username',
        exec_key = 'Session.keyfile',

        url = 'EngineFactory.url',
        ip = 'EngineFactory.ip',
        transport = 'EngineFactory.transport',
        port = 'EngineFactory.regport',
        location = 'EngineFactory.location',

        timeout = 'EngineFactory.timeout',

        profile = "IPEngineApp.profile",
        profile_dir = 'ProfileDir.location',

        mpi = 'MPI.use',

        log_level = 'IPEngineApp.log_level',
        log_url = 'IPEngineApp.log_url'
    ))

    # def find_key_file(self):
    #     """Set the key file.
    # 
    #     Here we don't try to actually see if it exists for is valid as that
    #     is hadled by the connection logic.
    #     """
    #     config = self.master_config
    #     # Find the actual controller key file
    #     if not config.Global.key_file:
    #         try_this = os.path.join(
    #             config.Global.profile_dir, 
    #             config.Global.security_dir,
    #             config.Global.key_file_name
    #         )
    #         config.Global.key_file = try_this
        
    def find_url_file(self):
        """Set the key file.

        Here we don't try to actually see if it exists for is valid as that
        is hadled by the connection logic.
        """
        config = self.config
        # Find the actual controller key file
        if not self.url_file:
            self.url_file = os.path.join(
                self.profile_dir.security_dir,
                self.url_file_name
            )
    def init_engine(self):
        # This is the working dir by now.
        sys.path.insert(0, '')
        config = self.config
        # print config
        self.find_url_file()

        # if os.path.exists(config.Global.key_file) and config.Global.secure:
        #     config.SessionFactory.exec_key = config.Global.key_file
        if os.path.exists(self.url_file):
            with open(self.url_file) as f:
                d = json.loads(f.read())
                for k,v in d.items():
                    if isinstance(v, str):
                        d[k] = v.encode()
            if d['exec_key']:
                config.Session.key = d['exec_key']
            d['url'] = disambiguate_url(d['url'], d['location'])
            config.EngineFactory.url = d['url']
            config.EngineFactory.location = d['location']
        
#.........這裏部分代碼省略.........

# 需要導入模塊: from IPython.parallel.engine.engine import EngineFactory [as 別名]
# 或者: from IPython.parallel.engine.engine.EngineFactory import start [as 別名]
class IPEngineApp(BaseParallelApplication):

    name = 'ipengine'
    description = _description
    examples = _examples
    config_file_name = Unicode(default_config_file_name)
    classes = List([ProfileDir, Session, EngineFactory, Kernel, MPI])

    startup_script = Unicode('', config=True,
        help='specify a script to be run at startup')
    startup_command = Unicode('', config=True,
            help='specify a command to be run at startup')

    url_file = Unicode('', config=True,
        help="""The full location of the file containing the connection information for
        the controller. If this is not given, the file must be in the
        security directory of the cluster directory.  This location is
        resolved using the `profile` or `profile_dir` options.""",
        )
    wait_for_url_file = Float(5, config=True,
        help="""The maximum number of seconds to wait for url_file to exist.
        This is useful for batch-systems and shared-filesystems where the
        controller and engine are started at the same time and it
        may take a moment for the controller to write the connector files.""")

    url_file_name = Unicode('ipcontroller-engine.json', config=True)

    def _cluster_id_changed(self, name, old, new):
        if new:
            base = 'ipcontroller-%s' % new
        else:
            base = 'ipcontroller'
        self.url_file_name = "%s-engine.json" % base

    log_url = Unicode('', config=True,
        help="""The URL for the iploggerapp instance, for forwarding
        logging to a central location.""")
    
    # an IPKernelApp instance, used to setup listening for shell frontends
    kernel_app = Instance(IPKernelApp)

    aliases = Dict(aliases)
    flags = Dict(flags)
    
    @property
    def kernel(self):
        """allow access to the Kernel object, so I look like IPKernelApp"""
        return self.engine.kernel

    def find_url_file(self):
        """Set the url file.

        Here we don't try to actually see if it exists for is valid as that
        is hadled by the connection logic.
        """
        config = self.config
        # Find the actual controller key file
        if not self.url_file:
            self.url_file = os.path.join(
                self.profile_dir.security_dir,
                self.url_file_name
            )
    
    def load_connector_file(self):
        """load config from a JSON connector file,
        at a *lower* priority than command-line/config files.
        """
        
        self.log.info("Loading url_file %r", self.url_file)
        config = self.config
        
        with open(self.url_file) as f:
            d = json.loads(f.read())
        
        if 'exec_key' in d:
            config.Session.key = cast_bytes(d['exec_key'])
        
        try:
            config.EngineFactory.location
        except AttributeError:
            config.EngineFactory.location = d['location']
        
        d['url'] = disambiguate_url(d['url'], config.EngineFactory.location)
        try:
            config.EngineFactory.url
        except AttributeError:
            config.EngineFactory.url = d['url']
        
        try:
            config.EngineFactory.sshserver
        except AttributeError:
            config.EngineFactory.sshserver = d['ssh']
    
    def bind_kernel(self, **kwargs):
        """Promote engine to listening kernel, accessible to frontends."""
        if self.kernel_app is not None:
            return
        
        self.log.info("Opening ports for direct connections as an IPython kernel")
        
#.........這裏部分代碼省略.........

# 需要導入模塊: from IPython.parallel.engine.engine import EngineFactory [as 別名]
# 或者: from IPython.parallel.engine.engine.EngineFactory import start [as 別名]

#.........這裏部分代碼省略.........
    #         config.Global.key_file = try_this
        
    def find_url_file(self):
        """Set the key file.

        Here we don't try to actually see if it exists for is valid as that
        is hadled by the connection logic.
        """
        config = self.master_config
        # Find the actual controller key file
        if not config.Global.url_file:
            try_this = os.path.join(
                config.Global.cluster_dir, 
                config.Global.security_dir,
                config.Global.url_file_name
            )
            config.Global.url_file = try_this
        
    def construct(self):
        # This is the working dir by now.
        sys.path.insert(0, '')
        config = self.master_config
        # if os.path.exists(config.Global.key_file) and config.Global.secure:
        #     config.SessionFactory.exec_key = config.Global.key_file
        if os.path.exists(config.Global.url_file):
            with open(config.Global.url_file) as f:
                d = json.loads(f.read())
                for k,v in d.iteritems():
                    if isinstance(v, unicode):
                        d[k] = v.encode()
            if d['exec_key']:
                config.SessionFactory.exec_key = d['exec_key']
            d['url'] = disambiguate_url(d['url'], d['location'])
            config.RegistrationFactory.url=d['url']
            config.EngineFactory.location = d['location']
        
        
        
        config.Kernel.exec_lines = config.Global.exec_lines

        self.start_mpi()

        # Create the underlying shell class and EngineService
        # shell_class = import_item(self.master_config.Global.shell_class)
        try:
            self.engine = EngineFactory(config=config, logname=self.log.name)
        except:
            self.log.error("Couldn't start the Engine", exc_info=True)
            self.exit(1)
        
        self.start_logging()

        # Create the service hierarchy
        # self.main_service = service.MultiService()
        # self.engine_service.setServiceParent(self.main_service)
        # self.tub_service = Tub()
        # self.tub_service.setServiceParent(self.main_service)
        # # This needs to be called before the connection is initiated
        # self.main_service.startService()

        # This initiates the connection to the controller and calls
        # register_engine to tell the controller we are ready to do work
        # self.engine_connector = EngineConnector(self.tub_service)

        # self.log.info("Using furl file: %s" % self.master_config.Global.furl_file)

        # reactor.callWhenRunning(self.call_connect)


    def start_logging(self):
        super(IPEngineApp, self).start_logging()
        if self.master_config.Global.log_url:
            context = self.engine.context
            lsock = context.socket(zmq.PUB)
            lsock.connect(self.master_config.Global.log_url)
            handler = EnginePUBHandler(self.engine, lsock)
            handler.setLevel(self.log_level)
            self.log.addHandler(handler)
    
    def start_mpi(self):
        global mpi
        mpikey = self.master_config.MPI.use
        mpi_import_statement = self.master_config.MPI.get(mpikey, None)
        if mpi_import_statement is not None:
            try:
                self.log.info("Initializing MPI:")
                self.log.info(mpi_import_statement)
                exec mpi_import_statement in globals()
            except:
                mpi = None
        else:
            mpi = None


    def start_app(self):
        self.engine.start()
        try:
            self.engine.loop.start()
        except KeyboardInterrupt:
            self.log.critical("Engine Interrupted, shutting down...\n")