Hi, I agree with Nick. I am using a 64-core machine. "-threads all" will 
grind to a still-stand. I am however fine with a few more threads, say 16.
Best,
Marcin

On 01.08.2015 00:35, Nikolay Bogoychev wrote:
>
> Hey,
>
> I have opposed this change in the past for two reasons:
>
> Using more than 4 threads doesn't help unless the user is using 
> PhraseDictionaryCompact. See this issue 
> https://github.com/moses-smt/mosesdecoder/issues/39 in fact on most 
> machines you rarely want to run moses on all available threads.
>
> Also - threads all picks up virtual (hyper) threads which are in fact 
> harmful to performance.
>
> If you want to change the default I think it would be better to have a 
> sane default like 4.. It would boost performance for most people and 
> if you run it on machines with less available cores it would be not 
> too bad.
>
> Cheers,
>
> Nick
>
> On 31 Jul 2015 7:31 pm, "Hieu Hoang" <hieuho...@gmail.com 
> <mailto:hieuho...@gmail.com>> wrote:
>
>     good suggestion. Changed:
>     
> https://github.com/moses-smt/mosesdecoder/commit/f894dec0fd8d5b15eb16c35d3d2599338894ee9d
>     if you have any more suggestions, it's best if you can just me a
>     patch and I'll check it in
>
>     On 31/07/2015 15:59, Vincent Nguyen wrote:
>>
>>     for inexperienced people like me :)
>>     Add |--decoder-flags="-threads 4"|  is key
>>
>>     if EMS config.basic had "-threads all" by default we would gain A
>>     LOT of time.
>>
>>     cheers,
>>
>>     Vincent
>>
>>
>>     Le 29/07/2015 22:05, Vincent Nguyen a écrit :
>>>     Hi,
>>>
>>>     I am wondering what tasks of the EMS are really parallelized.
>>>     I activated the script line + 8 cores.
>>>
>>>     Training / binarizing / Tuning all make only one core to actually work.
>>>
>>>     Am I correct ?
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>>>     http://mailman.mit.edu/mailman/listinfo/moses-support
>>
>>
>>
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>
>     -- 
>     Hieu Hoang
>     Researcher
>     New York University, Abu Dhabi
>     http://www.hoang.co.uk/hieu
>
>
>     _______________________________________________
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>     Moses-support@mit.edu <mailto:Moses-support@mit.edu>
>     http://mailman.mit.edu/mailman/listinfo/moses-support
>
>
>
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