[IPython-user] ipython 0.9.rc1 problem with manual example during import, using MultiEngineClient

[mark starnes]

Hello again,

Further to the request below, more problems occur for me later in the
manual.  If I execute:

In [1]: from ipython1.kernel import client

In [2]: tc = client.TaskClient(('127.0.0.1',10105))

In [3]: for n in range(1000):
    tasklist.append(client.Task("a=%i"%n, pull="a"))

In [4]: taskids = [ tc.run(t) for t in tasklist ]

I get:

---------------------------------------------------------------------------
Fault                                     Traceback (most recent call last)

/home/m.starnes/Documents/phd/meetings/85_/<ipython console> in <module>()

/usr/local/lib64/python2.5/site-packages/ipython1-0.3pre3-py2.5.egg/ipython1/kernel/taskclient.pyc
in run(self, task)
     84
     85     def run(self, task):
---> 86         return blockingCallFromThread(self.task_controller.run,
task)
     87
     88     def get_task_result(self, taskid, block=False):

/usr/local/lib64/python2.5/site-packages/ipython1-0.3pre3-py2.5.egg/ipython1/kernel/twistedutil.pyc
in blockingCallFromThread(f, *a, **kw)
     66         @raise: any error raised during the callback chain.
     67         """
---> 68         return
twisted.internet.threads.blockingCallFromThread(reactor, f, *a, **kw)
     69
     70 else:

/usr/local/lib64/python2.5/site-packages/Twisted-8.1.0-py2.5-linux-x86_64.egg/twisted/internet/threads.pyc
in blockingCallFromThread(reactor, f, *a, **kw)
     81     result = queue.get()
     82     if isinstance(result, failure.Failure):
---> 83         result.raiseException()
     84     return result
     85

/usr/local/lib64/python2.5/site-packages/Twisted-8.1.0-py2.5-linux-x86_64.egg/twisted/web/xmlrpc.pyc
in parseResponse(self, contents)
    313             return
    314         try:
--> 315             response = xmlrpclib.loads(contents)
    316         except:
    317             deferred, self.deferred = self.deferred, None

/usr/lib64/python2.5/xmlrpclib.pyc in loads(data, use_datetime)
   1130     p.feed(data)
   1131     p.close()
-> 1132     return u.close(), u.getmethodname()
   1133
   1134

/usr/lib64/python2.5/xmlrpclib.pyc in close(self)
    785             raise ResponseError()
    786         if self._type == "fault":
--> 787             raise Fault(**self._stack[0])
    788         return tuple(self._stack)
    789

Fault: <Fault 8001: 'function run not found'>



Any help would be appreciated.

Best regards,

Mark.



mark starnes wrote:
> Hi everyone,
> 
> I'm following the instructions in the Aug 29 2008 manual for parallel
> computing, and have been having some problems; reading back through the
> posts, I've noticed nothing to help (please, correct me if I'm wrong!).
> 
> If I start my cluster with:
> 
> $ ipcluster -n 4 &
> 
> Then, with IPython, 0.9.rc1:
> 
> In [1]: from IPython.kernel import client
> 
> In [2]: tc = client.TaskClient()
> 
> I get:
> ---------------------------------------------------------------------------
> 
> ... traceback information....
> 
> ValueError: not a furl or a file containing a furl:
> /home/m.starnes/.ipython/ipcontroller-tc.furl
> 
> 
> If I follow the instructions printed by the shell during cluster startup:
> 
> In [1]: from ipython1.kernel import client   # Differs from the manual
> 
> In [2]: mec = client.MultiEngineClient(('127.0.0.1',10105)) # Differs.
> 
> All seems well.  The same occurs when I follow the 'Quickstart Task
> Farming' section:
> 
> In [3]: tc = client.TaskClient(('127.0.0.1',10105))
> 
> 
> is fine, but
> 
> In [3]: tc = client.TaskClient()  # as per the manual.
> 
> returns:
> 
> TypeError: TaskClient() takes exactly 1 argument (0 given)
> 
> 
> I'm wondering, have I made a mistake with my installation?
> 
> 
> Best regards,
> 
> Mark.
>