[gnuastro-devel] [task #13986] Determine the number of threads at runtime

[Mohammad Akhlaghi]

Update of task #13986 (project gnuastro):

                Category:             Development => All Gnuastro           
              Item Group:                    None => Configuration file     
                  Status:                    None => Done                   
        Percent Complete:                     10% => 100%                   

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Follow-up Comment #2:

This task is done and pushed to master.

However, the _SC_NPROCESSORS_ONLN or get_nprocs() were not used. In the Gnulib
manual it is said that they are not portable. Gnulib has suggested using
Gnulib's own `num_processors' function (in nproc.h) for portability which
operates really nicely. In the utilities I just had to change the config.h
macro name to a call of this function.

Therefore the `--with-numthreads' option to configure is no longer necessary.
If someone wants to configure all the programs to use a fixed number of
threads, they can easily specify it in the system-wide configuration file of
each program (before installation for example).

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