taskGNU Astronomy Utilities - Tasks: task #14882, Optional weights for distributing...

 
 

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task #14882: Optional weights for distributing jobs in threads

Submitted by:  Mohammad Akhlaghi <makhlaghi>
Submitted on:  Mon 05 Mar 2018 11:38:01 PM UTC  
 
Should Start On:  Mon 05 Mar 2018 11:00:00 PM UTC Should be Finished on:  Mon 05 Mar 2018 11:00:00 PM UTC
Category:  Libraries Priority:  5 - Normal
Item Group:  Enhancement Status:  Postponed
Privacy:  Public Percent Complete:  0%
Assigned to:  None Open/Closed:  Open
Effort:  0.00

Mon 05 Mar 2018 11:38:01 PM UTC, original submission:

The function gal_threads_dist_in_threads is in charge of distributing the input jobs between different threads in Gnuastro's programs which benefit from threads.

Currently this function just takes the total number of jobs and divides them into the given number of threads evenly. However, in many cases, the "weight" of each job (for example area of region to be sorted) is clear before the distribution in threads.

We can use this information to make a non-even distribution, such that if too many large "weight" jobs are given to a thread, the smaller "weight" jobs are given to other threads and the processing can be done faster.

Mohammad Akhlaghi <makhlaghi>
Project Administrator

 

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