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parallel: implemented --minversion
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Ole Tange
parent
7ed9090560
commit
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276
doc/FUTURE_IDEAS
276
doc/FUTURE_IDEAS
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@ -1,11 +1,138 @@
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Til QUOTING:
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FN="two spaces"
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echo 1 | parallel -q echo {} "$FN"
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# Prints 2 spaces between 'two' and 'spaces'
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-q will not work with composed commands as it will quote the ; as
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well. So composed commands have to be quoted by hand:
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# Using export:
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FN2="two spaces"
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export FN2
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echo 1 | parallel echo {} \"\$FN2\" \; echo \"\$FN2\" {}
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# Prints 2 spaces between 'two' and 'spaces'
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# Without export:
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FN3="two spaces"
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echo 1 | parallel echo {} \""$FN3"\" \; echo \'"$FN3"\' {}
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# By quoting the space in the variable
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FN4='two\ \ spaces'
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echo 1 | parallel echo {} $FN4 \; echo $FN4 {}
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= Bug? ==
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locate .gz | parallel -X find {} -size +1000 -size -2000 | parallel --workdir ... -S .. --trc {/}.bz2 'zcat {} | bzip2 > {/}.bz2'
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== Compare ==
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http://code.google.com/p/spawntool/
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http://code.google.com/p/push/
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== Bug? ==
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.parallel/config with --long-options
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== SQL ==
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Example with %0a as newline
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sql :my_postgres?'\dt %0a SELECT * FROM users'
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cat ~/.sql/aliases | parallel --colsep '\s' sql {1} '"select 0.14+3;" | grep -q 3.14 || (echo dead: {1}; exit 1)'
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== FEX ==
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fex syntax for splitting fields
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http://www.semicomplete.com/projects/fex/
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sql :foo 'select * from bar' | parallel --fex '|{1,2}' do_stuff {2} {1}
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--autocolsep: Læs alle linjer.
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Prøv fastlængde: Find tegn, som står i alle linjer på de samme pladser. Risiko for falske pos
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Prøv fieldsep: Find eet tegn, som optræder det samme antal gange i alle linjer (tab sep)
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Prøv klyngesep: Find den samme klynge tegn, som står samme antal gange i alle linjer (' | ' sep)
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Fjern whitespace før og efter colonne
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hvis der er n af tegn A og 2n af tegn B, så
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a | b | c
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Simpleste: tab sep
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for hver linje
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max,min count for hver char
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for hver char
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if max == min :
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potentiel
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min_potentiel = min(min_potentiel,min)
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for potentiel:
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if min % min_potentiel = 0: sepchars += potentiel,no of sepchars += min / min_potentiel
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colsep = [sepchars]{no_of_sepchars}
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# TODO max_line_length on remote
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# TODO compute how many can be transferred within max_line_length
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Postkort:
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- Forside kun figur
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- Bagside:
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- Logo med figur - evt gnu.org/s/parallel
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- kort grå tekst, der forklarer hvad det er.
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- Eet eksempel: parallel gzip ::: *
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- Link til video. http://nd.gd/0s
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GNU parallel is a UNIX-tool for running commands in parallel.
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To gzip all files running one job per CPU write:
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parallel gzip ::: *
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Watch the intro video to learn more: http://nd.gd/0s
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Or read more about GNU parallel: www.gnu.org/s/parallel
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job->start():
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$jobslot = Global::jobslot->$sshlogin
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sub get_jobslot {
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my $sshlogin = shift;
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my $jobslot_id = pop @Global::jobslots{$sshlogin};
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if not defined $jobslot_id {
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$jobslot_id = ++$Global::max_jobslot_id;
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}
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return $jobslot_id;
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}
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sub release_jobslot {
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my $sshlogin = shift;
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my $jobslot_id = shift;
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push @Global::jobslots{$sshlogin}, $jobslot_id;
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}
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Test sshlogins in parallel. Assume parallel is in path
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seq 1 10 | parallel -I {o} 'seq 1 255 | parallel echo ssh -oNoHostAuthenticationForLocalhost=true 127.0.{o}.{}' >/tmp/sshloginfile
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seq 1 1000 | parallel --sshloginfile /tmp/sshloginfile echo
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ssh -F /tmp/
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Example:
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Chop mbox into emails
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Parallel sort
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codecoverage
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Testsuite: sem without ~/.parallel
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Dont start:
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* load
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* memory free | head -n 2 | awk \{print\ \$4+\$6+\$7\}
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* swap
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* seek
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vmstat\ 1\ 2\ \|\ tail\ -n1\ \|\ awk\ \{print\\\ \\\$7*\\\$8\}
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Video 30. 36. 41. 48
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@ -113,137 +240,6 @@ parallel convert -resize {3} -quality {2} {1} {1.}_{3}_q{2}.jpg :::: - ::: 25 50
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# Find GNU Parallel at http://www.gnu.org/software/parallel/
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Postkort:
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- Forside kun figur
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- Bagside:
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- Logo med figur - evt gnu.org/s/parallel
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- kort grå tekst, der forklarer hvad det er.
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- Eet eksempel: parallel gzip ::: *
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- Link til video. http://nd.gd/0s
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GNU parallel is a UNIX-tool for running commands in parallel.
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To gzip all files running one job per CPU write:
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parallel gzip ::: *
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Watch the intro video to learn more: http://nd.gd/0s
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Or read more about GNU parallel: www.gnu.org/s/parallel
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job->start():
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$jobslot = Global::jobslot->$sshlogin
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sub get_jobslot {
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my $sshlogin = shift;
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my $jobslot_id = pop @Global::jobslots{$sshlogin};
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if not defined $jobslot_id {
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$jobslot_id = ++$Global::max_jobslot_id;
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}
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return $jobslot_id;
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}
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sub release_jobslot {
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my $sshlogin = shift;
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my $jobslot_id = shift;
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push @Global::jobslots{$sshlogin}, $jobslot_id;
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}
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Test sshlogins in parallel. Assume parallel is in path
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seq 1 10 | parallel -I {o} 'seq 1 255 | parallel echo ssh -oNoHostAuthenticationForLocalhost=true 127.0.{o}.{}' >/tmp/sshloginfile
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seq 1 1000 | parallel --sshloginfile /tmp/sshloginfile echo
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ssh -F /tmp/
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Example:
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Chop mbox into emails
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Parallel sort
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codecoverage
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Testsuite: sem without ~/.parallel
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Til QUOTING:
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FN="two spaces"
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echo 1 | parallel -q echo {} "$FN"
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# Prints 2 spaces between 'two' and 'spaces'
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-q will not work with composed commands as it will quote the ; as
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well. So composed commands have to be quoted by hand:
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# Using export:
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FN2="two spaces"
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export FN2
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echo 1 | parallel echo {} \"\$FN2\" \; echo \"\$FN2\" {}
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# Prints 2 spaces between 'two' and 'spaces'
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# Without export:
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FN3="two spaces"
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echo 1 | parallel echo {} \""$FN3"\" \; echo \'"$FN3"\' {}
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# By quoting the space in the variable
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FN4='two\ \ spaces'
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echo 1 | parallel echo {} $FN4 \; echo $FN4 {}
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= Bug? ==
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locate .gz | parallel -X find {} -size +1000 -size -2000 | parallel --workdir ... -S .. --trc {/}.bz2 'zcat {} | bzip2 > {/}.bz2'
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== Compare ==
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http://code.google.com/p/spawntool/
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http://code.google.com/p/push/
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== Bug? ==
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.parallel/config with --long-options
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time find . -type f | parallel -j+0 --eta -S..,: --progress --trc {}.gz gzip {}
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== SQL ==
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Example with %0a as newline
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sql :my_postgres?'\dt %0a SELECT * FROM users'
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cat ~/.sql/aliases | parallel --colsep '\s' sql {1} '"select 0.14+3;" | grep -q 3.14 || (echo dead: {1}; exit 1)'
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== FEX ==
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fex syntax for splitting fields
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http://www.semicomplete.com/projects/fex/
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sql :foo 'select * from bar' | parallel --fex '|{1,2}' do_stuff {2} {1}
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--autocolsep: Læs alle linjer.
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Prøv fastlængde: Find tegn, som står i alle linjer på de samme pladser. Risiko for falske pos
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Prøv fieldsep: Find eet tegn, som optræder det samme antal gange i alle linjer (tab sep)
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Prøv klyngesep: Find den samme klynge tegn, som står samme antal gange i alle linjer (' | ' sep)
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Fjern whitespace før og efter colonne
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hvis der er n af tegn A og 2n af tegn B, så
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a | b | c
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Simpleste: tab sep
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for hver linje
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max,min count for hver char
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for hver char
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if max == min :
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potentiel
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min_potentiel = min(min_potentiel,min)
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for potentiel:
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if min % min_potentiel = 0: sepchars += potentiel,no of sepchars += min / min_potentiel
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colsep = [sepchars]{no_of_sepchars}
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# TODO max_line_length on remote
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# TODO compute how many can be transferred within max_line_length
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=head1 YouTube video --pipe
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cp parallel.fasta parallel.mbox lucene.tar
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@ -615,16 +611,6 @@ Test if -0 works on filenames ending in '\n'
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One char options not used: A F G K O Q R Z c f
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=head1 sem
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Parallelize so this can be done:
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mdm.screen find dir -execdir mdm-run cmd {} \;
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Maybe:
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find dir -execdir par$ --communication-file /tmp/comfile cmd {} \;
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find dir -execdir mutex -j4 -b cmd {} \;
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=head1 Unlikely
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Accept signal INT instead of TERM to complete current running jobs but
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@ -403,6 +403,7 @@ sub options_hash {
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"interactive|p" => \$::opt_p,
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"verbose|t" => \$::opt_verbose,
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"version|V" => \$::opt_version,
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"minversion|min-version=i" => \$::opt_minversion,
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"show-limits|showlimits" => \$::opt_show_limits,
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"exit|x" => \$::opt_x,
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# Semaphore
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@ -530,6 +531,14 @@ sub parse_options {
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if(defined $::opt_fg) { $Global::semaphore = 1; }
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if(defined $::opt_bg) { $Global::semaphore = 1; }
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if(defined $::opt_wait) { $Global::semaphore = 1; }
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if(defined $::opt_minversion) {
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version();
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if($Global::version < $::opt_minversion) {
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wait_and_exit(255);
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} else {
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wait_and_exit(0);
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}
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}
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if(defined $::opt_nonall) {
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# Append a dummy empty argument
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push @ARGV, ":::", "";
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@ -621,6 +621,16 @@ See also B<-X> for context replace. If in doubt use B<-X> as that will
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most likely do what is needed.
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=item B<--minversion> I<version> (alpha testing)
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Print the version GNU B<parallel> and exit. If the current version of
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GNU B<parallel> is less than I<version> the exit code is
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255. Otherwise it is 0.
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This is useful for scripts that depend on features only available from
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a certain version of GNU B<parallel>.
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=item B<--onall> (alpha testing)
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Run all the jobs on all computers given with B<--sshlogin>. GNU
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