[Swift-devel] Swift data distribution strategy

Zhao Zhang zhaozhang at uchicago.edu
Thu Feb 12 13:46:15 CST 2009


ok, got it.

zhao

Mihael Hategan wrote:
> ----- Zhao Zhang <zhaozhang at uchicago.edu> wrote:
>   
>> Hi,
>>
>> I got a problem when I do a 512-compute node scale test.
>> There are 15351 input files for this computation, and there are 8 sites.
>> The question is: when I start swift, are all 15351 input files be copied 
>> to each of the 8 sites?
>>
>> By by test, it is yes.
>>     
>
> It's more like "no" actually. Swift first selects a site for each job 
> that can be run. After that, it stages each job's files to the site 
> that was selected for that job.
>
>   
>> Does swift has an option so that only on demand 
>> input files are copied?
>>
>> best wishes
>> zhangzhao
>> _______________________________________________
>> Swift-devel mailing list
>> Swift-devel at ci.uchicago.edu
>> http://mail.ci.uchicago.edu/mailman/listinfo/swift-devel
>>     
>
>
>   



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