Some programs, like 'msgmerge' from GNU gettext, already pay
attention to the OMP_NUM_THREADS variable - a convention shared
by all programs that rely on OpenMP. Can you make the 'sort'
program use the same convention?
I am not working on the multi-threaded sort, but if somebody asks I can
make it read OMP_NUM_THREADS.
If is is already used by other GNU programs, then it seems a good idea
to use this value when --threads is not specified on the command line.
I agree. This also implies that no OMP_NUM_THREADS and no --threads
_will_ activate threading by default.
Of course this should only apply if its effect is not externally
observable; if I have a very small file B and a very large file A, and I
can get
$ md5sum --threads A B
abcdabcdabcdabcdabcdabcdabcdabcd B
12341234123412341234123412341234 A
Then the option would be necessary.
Paolo
