Hi Hieu,

My latest tests on a netbook (dual core 1.6 Ghz, 2GB Ram, 320 GB 5400 rpm):

- test sets had a size of 1000 to 2000 sentences and the complete parallel
corpus was around 1.8 mil words (~950 sentences each)
- I performed several training steps for chart and pb-decoding using an
unfactored model and a tree-based one
- phrase, rule and reodering tables were binarized and/or filtered
- training pipeline using the chart-decoder took up almost twice as much
time compared to the pb decoder ranging from 5 to 12hrs per run-through
- step 2 and 3 took up the most time (grow-diag-final-and)
- during the alignment GIZA stopped from time to time (probably due to the
IO waits you mentioned)
- moses git rev cb5213a, GIZA++, IRSTLM 5.70.04, Ubuntu 10.4

As Tom already mentioned, tests on desktops run much smoother.

Hope this might help, too.
-Daniel

-----Ursprüngliche Nachricht-----
Von: [email protected] [mailto:[email protected]] Im
Auftrag von Tom Hoar
Gesendet: Mittwoch, 22. Februar 2012 15:48
An: Hieu Hoang
Cc: moses-support
Betreff: Re: [Moses-support] MT training on a laptop

 I don't like to admit it, but I run some tests on a Samsung netbook  with a
dual-core Atom 1.6 Ghz, 2 GB Ram and 300 GB 5400 rpm hard disk. 
 typically only use a small ~40K pair test corpus. Only use MGIZA++ and
snt2cooc slows to slower-than a crawl on one core.

 Have several desktops we draft into action sometimes. 4 GB w/ 3 Ghz
Pentium Dual-cores. They run much smoother and faster than on the 2 GB
netbook.

 We're running SVN rev 4153 from mid-August last year on Ubuntu 10.04. 
 Plan to update our binaries to the GITHUB version 2-3 months after the
Ubuntu 12.04 LTS is launched in the spring.

 Hope this helps.
 Tom


 On Wed, 22 Feb 2012 12:54:36 +0000, Hieu Hoang <[email protected]>
 wrote:
> hi all
>
> does anyone have experience running the training pipeline on a laptop?
> It seem very slow to me, especially some parts of the GIZA++ alignment 
> (and possibly later stages too). Seems to be crawling due to IO waits 
> on a GIZA process called snt2cooc.out. This doesn't happens when 
> running on larger servers. Has anyone else encounter this problem?
>
> I'm using a MacBook 2.4Ghz dual core, OSX 10.7.3, 240GB disk (5400 
> spin), 4GB ram.
>
>
> _______________________________________________
> Moses-support mailing list
> [email protected]
> http://mailman.mit.edu/mailman/listinfo/moses-support

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