Re: Help needed with running mpich2 plugin using starcluster

From: Justin Riley <no email>
Date: Mon, 27 Feb 2012 16:58:31 -0500

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Hi Subbarao,

The AMI you're using (ami-31814f58) is not supported by StarCluster.
Please use one of the StarCluster Ubuntu 11.10 AMIs when using the
mpich2 plugin. You can get a list of StarCluster supported AMIs using:

$ starcluster listpublic

HTH,

~Justin

On 02/26/2012 02:54 PM, Subbarao Kota wrote:
> Hi Justin, Thanks so much for taking time on this.
>
> Everytimg I am starting the cluster using StarCluster I am
> receiving the errors as in the attached file. I have also attached
> my config file. Some values are replaced such as access_keys.
>
> 1. Why are these errors being received? See attached file
> (cluster_startup_errors) for errors. Also attached is the
> crash_report. 2. I included a [plugin mpich2] section in the config
> file but when starting the cluster with this setting doesn't seem
> start the plugins. Why is that?
>
> My goal is to run some benchmarks (specifically STREAM (MPI version
> in C), IOR and NAS MPI) on Amazon EC2 instances. Once I am
> successful in running these on just 1 instance, my plan is to run
> them on 2 nodes, 4 nodes, 6 nodes and 8 nodes to evaluate the
> performance of these benchmarks. And I need to run them with
> MPICH2.
>
> So far I have been able to run STREAM and IOR benchmarks on
> t1.micro instance. Now I want to create a small cluster of 2 nodes
> and run them. I think StarCluster can help me accomplish it.
>
> Thanks, Subbarao Kota.
>
>
>
> On Feb 22, 2012, at 11:51 AM, Justin Riley wrote:
>
> Hi Subbarao,
>
> Which AMI are you using? This error usually occurs because you're
> using an AMI that does not allow root logins.
>
> In general you should use either the StarCluster supported AMIs or
> an AMI based on the StarCluster supported AMIs. Have a look at the
> following doc on how to customize the StarCluster supported AMIs:
>
> http://web.mit.edu/star/cluster/docs/latest/manual/create_new_ami.html
>
> Also, do you still have the 'crash report' that was generated when
> you got this error? It would be useful to take a look at this as
> well if it's still around....
>
> ~Justin
>
> On 02/20/2012 02:57 PM, Subbarao Kota wrote:
>>>> Hello, I received the below error when attempted to run the
>>>> mpich2 plugin on a 2-node cluster of t1.micro instance via
>>>> starcluster. Can you please let me know what needs to be
>>>> fixed or corrected? what additional information you will need
>>>> to help.
>>>>
>>>> Please advise. Thanks.
>>>>
>>>> ====
>>>>
>>>> StarCluster - (http://web.mit.edu/starcluster) (v. 0.93.1)
>>>> Software Tools for Academics and Researchers (STAR) Please
>>>> submit bug reports to starcluster_at_mit.edu
>>>>
>>>>>>> Running plugin mpich2 Creating MPICH2 hosts file
>>>> !!! ERROR - Error occurred while running plugin 'mpich2':
>>>> Traceback (most recent call last): File
>>>>
>> "/Library/Python/2.7/site-packages/StarCluster-0.93.1-py2.7.egg/starcluster/cluster.py",
>>>>
>>
line 1482, in run_plugin func(*args) File
>>>>
>> "/Library/Python/2.7/site-packages/StarCluster-0.93.1-py2.7.egg/starcluster/plugins/mpich2.py",
>>>>
>>
line 33, in run mpich2_hosts =
>>>> master.ssh.remote_file(self.MPICH2_HOSTS, 'w') File
>>>>
>> "/Library/Python/2.7/site-packages/StarCluster-0.93.1-py2.7.egg/starcluster/ssh.py",
>>>>
>>
line 290, in remote_file rfile = self.sftp.open(file, mode) File
>>>>
>> "/Library/Python/2.7/site-packages/StarCluster-0.93.1-py2.7.egg/starcluster/ssh.py",
>>>>
>>
line 180, in sftp self._sftp =
>>>> paramiko.SFTPClient.from_transport(self.transport) File
>>>> "build/bdist.macosx-10.7-intel/egg/paramiko/sftp_client.py",
>>>> line 106, in from_transport return cls(chan) File
>>>> "build/bdist.macosx-10.7-intel/egg/paramiko/sftp_client.py",
>>>> line 87, in __init__ server_version = self._send_version()
>>>> File "build/bdist.macosx-10.7-intel/egg/paramiko/sftp.py",
>>>> line 108, in _send_version t, data = self._read_packet()
>>>> File "build/bdist.macosx-10.7-intel/egg/paramiko/sftp.py",
>>>> line 179, in _read_packet raise SFTPError('Garbage packet
>>>> received') SFTPError: Garbage packet received
>>>> _______________________________________________ StarCluster
>>>> mailing list StarCluster_at_mit.edu
>>>> http://mailman.mit.edu/mailman/listinfo/starcluster
>
>

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Received on Mon Feb 27 2012 - 16:58:34 EST