Thanks. I found a possible problem with the way I built Moses with IRSTLM.
So, I started from scratch and I'm rebuilding phrase tables and language
models. Should be ready for further testing tomorrow. I'll pass my results
when it's done. Stand by...

Tom

On Tue, 1 Jun 2010 13:40:35 +0100, Barry Haddow <[email protected]>
wrote:
> Hi Tom
> 
> I think 4G ram should be enough for the model you describe, so I don't
> know 
> why moses is getting killled. How much memory does it use? Is moses
using
> the 
> binarised models? Note that there needs to be a 1 at the start of the
> ttable 
> specification for this to happen. eg
> [ttable-file]
> 1 0 0 5 /afs/inf.ed.ac.uk/group/bhaddow/models/fr-en-nc/phrase-table.1
> 
> If you run with '-v 1' then you should be able to see which table is
being 
> loaded when the memory exhaustion occurred.
> 
> regards
> Barry
> 
> On Saturday 29 May 2010 19:23, [email protected]
wrote:
>> I'm troubleshooting a new moses system with these components:
>>   1) GIZA++ (SVN rev 8, v 1.0.3)
>>   2) IRSTLM (SVN rev 38, v 5.40.01)
>>   3) Moses (SVN rev 3210, dated 4-26-2010)
>>   4) Ubuntu-server 10.04 LTS 64-bit.
>>   5) 3.4 Ghz Pentium-D with 4gb ram.
>>
>> Using a 3-gram lm, the system works as expected. Training, tuning and
>> evaluation a small (135K pairs) en-nl subset of europarl.v5 work fine.
>> BLEU
>> score was 23.
>>
>> I then built a 5-gram model, edited the moses.ini config and started
>> mert-moses-new. It creates a filtered model, and then launches moses.
The
>> memory usage grows and within 10 minutes, the system kills moses.
>>
>> In both cases, the lm is only the target half of the bitext corpus,
about
>> 135K lines.
>>
>> The moses.ini files:
>>
>> [lmodel-file]
>> 1 0 3 /media/models/irstlm/europarl.v5.mini/3-gram.nl.blm
>>
>> [lmodel-file]
>> 1 0 5 /media/models/irstlm/europarl.v5.mini/5-gram.nl.blm
>>
>> I know of one other who has anyone the same problem with the 4-1-2010
>> moses build and irstlm from March/April last year.
>>
>> Any suggestions? Could it be the new Ubuntu or the g++-4.4.1 compiler?
>>
>> Thanks,
>> Tom
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