Re: [OMPI users] error with mrmpi and openmpi

[Ralph Castain]

Ah, thanks - I was curious as Greenplum is about to release the full port of 
Hadoop to OpenMPI so it can be run anywhere and support MPI as well. I'm at 
least a little familiar with this one, but didn't realize it had been 
distributed.


On Nov 29, 2012, at 8:00 AM, Howard Pritchard  wrote:

> Hi Ralph,
> 
> mrmpi is an mpi based map reduce implementation developed at sandia labs.
> 
> Howard
> 
> 
> On 11/28/2012 09:20 PM, Ralph Castain wrote:
>> On Nov 28, 2012, at 12:21 PM, Mariana Vargas Magana  
>> wrote:
>> 
>>> Hi openmpi'users
>>> 
>>> I now trying to install mrmpi in a cluster to use it with openmpi, I 
>>> installed locally openmpi with the option --disable-dlopen , I install also 
>>> mrmpi without apparent problems but when testing with the basic commands in 
>>> a python27 shell
>> What is mrmpi?
>> 
>>> from mrmpi import mrmpi
>>> mr=mrmpi()
>>> 
>>> I get the following warning, and shell stays waiting without response….
>>> 
>>> libibverbs: Warning: no userspace device-specific driver found for 
>>> /sys/class/infiniband_verbs/uverbs0
>> Looks like OMPI was built with Infiniband support, but we aren't finding the 
>> required support libraries wherever the process is running. They were 
>> probably present on the machine where you built OMPI. You should check the 
>> remote node, and either install the libraries there or re-configure OMPI to 
>> ignore inifiniband. See "./configure -h" to find the relevant IB option - I 
>> think it is --without-openib
>> 
>> 
>>> Help please!
>>> Dr. Mariana Vargas-Magaña
>>> Post-Doctoral Researcher
>>> Carnegie Mellon University
>>> ___
>>> users mailing list
>>> us...@open-mpi.org
>>> http://www.open-mpi.org/mailman/listinfo.cgi/users
>> 
>> ___
>> users mailing list
>> us...@open-mpi.org
>> http://www.open-mpi.org/mailman/listinfo.cgi/users
> 
> 
> -- 
> Howard Pritchard
> Software Engineering
> Cray, Inc.
> 
> ___
> users mailing list
> us...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users

Re: [OMPI users] error with mrmpi and openmpi

[Howard Pritchard]

Hi Ralph,

mrmpi is an mpi based map reduce implementation developed at sandia labs.

Howard


On 11/28/2012 09:20 PM, Ralph Castain wrote:

On Nov 28, 2012, at 12:21 PM, Mariana Vargas Magana  
wrote:


Hi openmpi'users

I now trying to install mrmpi in a cluster to use it with openmpi, I installed 
locally openmpi with the option --disable-dlopen , I install also mrmpi without 
apparent problems but when testing with the basic commands in a python27 shell

What is mrmpi?


from mrmpi import mrmpi
mr=mrmpi()

I get the following warning, and shell stays waiting without response….

libibverbs: Warning: no userspace device-specific driver found for 
/sys/class/infiniband_verbs/uverbs0

Looks like OMPI was built with Infiniband support, but we aren't finding the required 
support libraries wherever the process is running. They were probably present on the 
machine where you built OMPI. You should check the remote node, and either install the 
libraries there or re-configure OMPI to ignore inifiniband. See "./configure 
-h" to find the relevant IB option - I think it is --without-openib



Help please!
Dr. Mariana Vargas-Magaña
Post-Doctoral Researcher
Carnegie Mellon University
___
users mailing list
us...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users


___
users mailing list
us...@open-mpi.org
http://www.open-mpi.org/mailman/listinfo.cgi/users



--
Howard Pritchard
Software Engineering
Cray, Inc.

Re: [OMPI users] error with mrmpi and openmpi

[Jeff Squyres]

On Nov 28, 2012, at 11:20 PM, Ralph Castain wrote:

>> libibverbs: Warning: no userspace device-specific driver found for 
>> /sys/class/infiniband_verbs/uverbs0
> 
> Looks like OMPI was built with Infiniband support, but we aren't finding the 
> required support libraries wherever the process is running. 


Just to clarify, this message means that *verbs* didn't find the right driver 
for the OpenFabrics NIC in your machine.

Specifically, your Open MPI build includes support for OpenFabrics types of 
devices, but when it goes to use that support on your machine, the OpenFabrics 
"verbs" library is failing to find a driver for your specific NIC device.

This usually means that your OpenFabrics installation is borked.  You should 
probably contact your system administrator to have them fix it.

-- 
Jeff Squyres
jsquy...@cisco.com
For corporate legal information go to: 
http://www.cisco.com/web/about/doing_business/legal/cri/

Re: [OMPI users] error with mrmpi and openmpi

[Ralph Castain]

On Nov 28, 2012, at 12:21 PM, Mariana Vargas Magana  
wrote:

> Hi openmpi'users
> 
> I now trying to install mrmpi in a cluster to use it with openmpi, I 
> installed locally openmpi with the option --disable-dlopen , I install also 
> mrmpi without apparent problems but when testing with the basic commands in a 
> python27 shell 

What is mrmpi?

> from mrmpi import mrmpi
> mr=mrmpi()
> 
> I get the following warning, and shell stays waiting without response….
> 
> libibverbs: Warning: no userspace device-specific driver found for 
> /sys/class/infiniband_verbs/uverbs0

Looks like OMPI was built with Infiniband support, but we aren't finding the 
required support libraries wherever the process is running. They were probably 
present on the machine where you built OMPI. You should check the remote node, 
and either install the libraries there or re-configure OMPI to ignore 
inifiniband. See "./configure -h" to find the relevant IB option - I think it 
is --without-openib


> 
> Help please!
> Dr. Mariana Vargas-Magaña
> Post-Doctoral Researcher 
> Carnegie Mellon University
> ___
> users mailing list
> us...@open-mpi.org
> http://www.open-mpi.org/mailman/listinfo.cgi/users

[OMPI users] error with mrmpi and openmpi

[Mariana Vargas Magana]

Hi openmpi'users

I now trying to install mrmpi in a cluster to use it with openmpi, I installed 
locally openmpi with the option --disable-dlopen , I install also mrmpi without 
apparent problems but when testing with the basic commands in a python27 shell 
from mrmpi import mrmpi
mr=mrmpi()

I get the following warning, and shell stays waiting without response….

libibverbs: Warning: no userspace device-specific driver found for 
/sys/class/infiniband_verbs/uverbs0

Help please!
Dr. Mariana Vargas-Magaña
Post-Doctoral Researcher 
Carnegie Mellon University