mirror of
https://git.savannah.gnu.org/git/parallel.git
synced 2024-12-22 20:57:53 +00:00
72 lines
2 KiB
Plaintext
72 lines
2 KiB
Plaintext
=head1 IDEAS
|
|
|
|
Kan vi lave flere ssh'er, hvis vi venter lidt?
|
|
En ssh med 20% loss og 900 ms delay, så kan login nås på 15 sek.
|
|
|
|
Test if -0 works on filenames ending in '\n'
|
|
|
|
Transfer scriptfile before first job. Remove it when last job done.
|
|
|
|
monitor to see which jobs are currently running
|
|
http://code.google.com/p/ppss/
|
|
|
|
If there are nomore jobs (STDIN is closed) then make sure to
|
|
distribute the arguments evenly if running -X.
|
|
|
|
=head1 options
|
|
|
|
One char options not used: F G J K P Q Y
|
|
|
|
Skilletegn i sshlogin:
|
|
#=item B<--sshlogin> I<[ncpu/]sshlogin[,[ncpu/]sshlogin[,...]]> (beta testing)
|
|
# Skilletegn:
|
|
# No: "#!&()?\<>|;*'~ shellspecial
|
|
# No: @.- part of user@i.p.n.r i.p.n.r host-name
|
|
# No: , separates different sshlogins
|
|
# No: space Will make it hard to do: 8/server1,server2
|
|
# Maybe: / 8//usr/bin/myssh,//usr/bin/ssh
|
|
# %/=:_^
|
|
|
|
|
|
|
|
=head2 mutex
|
|
|
|
mutex -b -n -l lockid -m max_locks [command]
|
|
mutex -u lockid
|
|
|
|
-b run command in background
|
|
-l lockfile will lock using the lockid
|
|
-n nonblocking
|
|
-m maximal number of locks (default 1)
|
|
-u unlock
|
|
|
|
If command given works like: mutex -l lockfile -n number_of_locks ; command; mutex -u lockfile
|
|
If -b given works like: mutex -l lockfile -n number_of_locks ; (command; mutex -u lockfile)&
|
|
|
|
Kan vi finde på lockid som giver mening?
|
|
|
|
Parallelize so this can be done:
|
|
mdm.screen find dir -execdir mdm-run cmd {} \;
|
|
Maybe:
|
|
find dir -execdir par$ --communication-file /tmp/comfile cmd {} \;
|
|
|
|
find dir -execdir mutex -j4 -b cmd {} \;
|
|
|
|
=head2 Comfile
|
|
|
|
This will put a lock on /tmp/comfile. The number of locks is the number of running commands.
|
|
If the number is smaller than -j then it will start a process in the background ( cmd & ),
|
|
otherwise wait.
|
|
|
|
par$ --wait /tmp/comfile will wait until no more locks on the file
|
|
|
|
|
|
|
|
=head1 Unlikely
|
|
|
|
Accept signal INT instead of TERM to complete current running jobs but
|
|
do not start new jobs. Print out the number of jobs waiting to
|
|
complete on STDERR. Accept sig INT again to kill now. This seems to be
|
|
hard, as all foreground processes get the INT from the shell.
|
|
|