taskGNU Astronomy Utilities - Tasks: task #15198, Specificifying directory for...


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task #15198: Specificifying directory for memory-mapped files

Submitted by:  Mohammad Akhlaghi <makhlaghi>
Submitted on:  Thu 28 Feb 2019 03:11:38 PM UTC  
Should Start On:  Thu 28 Feb 2019 12:00:00 AM UTC Should be Finished on:  Thu 28 Feb 2019 12:00:00 AM UTC
Category:  All Gnuastro Priority:  5 - Normal
Item Group:  Enhancement Status:  Postponed
Privacy:  Public Percent Complete:  0%
Assigned to:  None Open/Closed:  Open
Effort:  0.00

Thu 28 Feb 2019 03:11:38 PM UTC, original submission:  

Currently Gnuastro stores memory-mapped files in the `.gnuastro' directory. Since this directory can also host (important) configuration files, it is best that the memory-mapped files are stored separately.

But unlike the fixed `.gnuastro' directory, since memory-mapped files are usually large (and are temporary), the user might have a good scratch place for them on their system. So the user must be able to specify the directory where the memory-mapped file will be kept.

We can add a general option like `--mmapdir' to let the user specify this directory and add an argument to the dataset allocation function in Gnuastro's library (which will decide if the array should be allocated in RAM or on HDD/SSD.

Mohammad Akhlaghi <makhlaghi>
Project Administrator


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