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parallel: {0%}/{0#} zero-padded jobslot/sequence number.
This commit is contained in:
Ole Tange
parent
fff769f675
commit
b46e90b7c5
11
src/parallel
11
src/parallel
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@ -2212,6 +2212,12 @@ sub init_globals() {
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'{choose_k}' => 'for $t (2..$#arg){ if($arg[$t-1] ge $arg[$t]) { skip() } }',
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# {##} = number of jobs
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'{##}' => '$_=total_jobs()',
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# {0%} = 0-padded jobslot
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'{0%}' => '$f=1+int((log($Global::max_jobs_running||1)/log(10))); $_=sprintf("%0${f}d",slot())',
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# {0%} = 0-padded seq
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'{0#}' => '$f=1+int((log(total_jobs())/log(10))); $_=sprintf("%0${f}d",seq())',
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## Bash inspired replacement strings
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# Bash ${a:-myval}
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'{:-([^}]+?)}' => '$_ ||= $$1',
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# Bash ${a:2}
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@ -6301,6 +6307,7 @@ sub set_max_jobs_running($$) {
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$Global::max_jobs_running -= $self->{'max_jobs_running'};
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}
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$self->{'max_jobs_running'} = shift;
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if(defined $self->{'max_jobs_running'}) {
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# max_jobs_running could be resat if -j is a changed file
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$Global::max_jobs_running += $self->{'max_jobs_running'};
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@ -10811,12 +10818,13 @@ sub new($) {
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sub flush_cache() {
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my $self = shift;
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for my $arglist (@{$self->{'arglist'}}) {
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for my $arglist (@{$self->{'arg_list'}}) {
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for my $arg (@$arglist) {
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$arg->flush_cache();
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}
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}
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$self->{'arg_queue'}->flush_cache();
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$self->{'replaced'} = undef;
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}
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sub seq($) {
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@ -13657,6 +13665,7 @@ sub main() {
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# Compute $Global::max_jobs_running
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# Must be done after ungetting any --pipepart jobs.
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max_jobs_running();
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init_run_jobs();
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my $sem;
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if($Global::semaphore) {
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@ -299,14 +299,20 @@ directory (if any) and extension removed.
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To understand positional replacement strings see B<{>I<n>B<}>.
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=item B<{=>I<perl expression>B<=}>
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=item B<{=>I<perl expression>B<=}> (alpha testing)
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Replace with calculated I<perl expression>. B<$_> will contain the
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same as B<{}>. After evaluating I<perl expression> B<$_> will be used
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as the value. It is recommended to only change $_ but you have full
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access to all of GNU B<parallel>'s internal functions and data
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structures. A few convenience functions and data structures have been
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made:
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structures.
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The expression must give the same result if evaluated twice -
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otherwise the behaviour is undefined. E.g. this will not work as expected:
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parallel echo '{= $_= ++$wrong_counter =}' ::: a b c
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A few convenience functions and data structures have been made:
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=over 15
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@ -870,7 +876,7 @@ replacement strings and Perl code. Example:
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parallel --filter '{1} < {2}+1' echo ::: {1..3} ::: {1..3}
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Runs: 1,1 1,2 1,3 2,2 2,3 3,3
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Outputs: 1,1 1,2 1,3 2,2 2,3 3,3
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=item B<--filter-hosts>
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@ -1625,11 +1631,9 @@ Activate additional replacement strings: {+/} {+.} {+..} {+...} {..}
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B<{##}> is the total number of jobs to be run. It is incompatible with
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B<-X>/B<-m>/B<--xargs>.
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B<{0%}>, B<{00%}>, B<{000%}>, ... B<{0..0%}> prefix jobslot with
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zeros. (alpha testing)
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B<{0%}> zero-padded jobslot. (alpha testing)
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B<{0#}>, B<{00#}>, B<{000#}>, ... B<{0..0#}> prefix sequence numbers
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with zeros. (alpha testing)
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B<{0#}> zero-padded sequence number. (alpha testing)
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B<{choose_k}> is inspired by n choose k: Given a list of n elements,
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choose k. k is the number of input sources and n is the number of
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@ -2640,6 +2644,23 @@ will be replaced.
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With B<--cleanup> the new file will be removed when the job is done.
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If I<my.tmpl> contains this:
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Xval: {x}
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Yval: {y}
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FixedValue: 9
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# x with 2 decimals
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DecimalX: {=x $_=sprintf("%.2f",$_) =}
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TenX: {=x $_=$_*10 =}
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RandomVal: {=1 $_=rand() =}
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it can be used like this:
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myprog() { echo Using "$@"; cat "$@"; }
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export -f myprog
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parallel --cleanup --header : --tmpl my.tmpl={#}.t myprog {#}.t \
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::: x 1.234 2.345 3.45678 ::: y 1 2 3
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=item B<--tty>
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@ -2862,10 +2862,8 @@ Distributed Resource Management Application API to make jobs run with
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different cluster software.
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=head3 Future support in GNU Parallel
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B<Future> versions of GNU B<parallel> may support templates
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with replacement strings. Such as:
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GNU B<parallel> B<--tmpl> supports templates with replacement
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strings. Such as:
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Xval: {x}
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Yval: {y}
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@ -2873,21 +2871,17 @@ with replacement strings. Such as:
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# x with 2 decimals
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DecimalX: {=x $_=sprintf("%.2f",$_) =}
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TenX: {=x $_=$_*10 =}
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RandomVal: {= $_=rand() =}
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RandomVal: {=1 $_=rand() =}
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that can be used like:
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parallel --header : --tmpl my.tmpl={#}.t myprog {#}.t \
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::: x 1 2 3 ::: y 1 2 3
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Filtering may also be supported as:
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Filtering is supported as:
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parallel --filter '{1} > {2}' echo ::: 1 2 3 ::: 1 2 3
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which will basically do:
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parallel echo '{= $arg[1] > $arg[2] and skip() =}' ::: 1 2 3 ::: 1 2 3
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https://github.com/eviatarbach/parasweep (Last checked: 2021-01)
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@ -2936,6 +2930,28 @@ https://reposhub.com/python/command-line-tools/Akianonymus-parallel-bash.html
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(Last checked: 2021-02)
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=head2 DIFFERENCES BETWEEN bash-concurrent AND GNU Parallel
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B<bash-concurrent> is more an alternative to B<make> than to GNU
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B<parallel>. Its input is very similar to a Makefile, where jobs
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depend on other jobs.
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It has a nice progress indicator where you can see which jobs
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completed successfully, which jobs are currently running, which jobs
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failed, and which jobs were skipped due to a depending job failed.
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The indicator does not deal well with resizing the window.
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Output is cached in tempfiles on disk, but is only shown if there is
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an error, so it is not meant to be part of a UNIX pipeline. If
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B<bash-concurrent> crashes these tempfiles are not removed.
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It uses an O(n*n) algorithm, so if you have 1000 independent jobs it
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takes 22 seconds to start it.
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https://github.com/themattrix/bash-concurrent
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(Last checked: 2021-02)
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=head2 Todo
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https://github.com/Nukesor/pueue
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@ -69,12 +69,12 @@ EOF
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cat <<'EOF' > "$tmp2"
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2: Job:{#} Slot:{%} All:{} Arg[1]:{1} Arg[-1]:{-1} Perl({}+4):{=$_+=4=}
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EOF
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parallel -j2 --cleanup --tmpl $tmp1=t1.{#} --tmpl $tmp2=t2.{%} \
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'cat t1.{#} t2.{%}' ::: 1 2 ::: a b
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parallel --colsep , -j2 --cleanup --tmpl $tmp1=t1.{#} --tmpl $tmp2=t2.{%} \
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'sleep 0.{#}; cat t1.{#} t2.{%}' ::: 1,a 1,b 2,a 2,b
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echo should give no files
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ls t[12].*
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parallel --cleanup --colsep , -j2 --tmpl $tmp1=t1.{#} --tmpl $tmp2=t2.{%} \
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'cat t1.{#} t2.{%}' ::: 1,a 1,b 2,a 2,b
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parallel -j2 --cleanup --tmpl $tmp1=t1.{#} --tmpl $tmp2=t2.{%} \
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'sleep 0.{#}; cat t1.{#} t2.{%}' ::: 1 2 ::: a b
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echo should give no files
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ls t[12].*
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}
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@ -282,6 +282,10 @@ par_open_files_blocks 9 of 21
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par_open_files_blocks 10 of 21
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par_open_files_blocks 11 of 21
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par_open_files_blocks 12 of 21
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par_open_files_blocks parallel: Warning: Try running 'parallel -j0 -N 100 --pipe parallel -j0'
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par_open_files_blocks parallel: Warning: or increasing 'ulimit -n' (try: ulimit -n `ulimit -Hn`)
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par_open_files_blocks parallel: Warning: or increasing 'nofile' in /etc/security/limits.conf
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par_open_files_blocks parallel: Warning: or increasing /proc/sys/fs/file-max
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par_open_files_blocks 13 of 21
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par_open_files_blocks 14 of 21
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par_open_files_blocks 15 of 21
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@ -479,21 +483,21 @@ par_plus_slot_replacement Seq: 097 97
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par_plus_slot_replacement Seq: 098 98
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par_plus_slot_replacement Seq: 099 99
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par_plus_slot_replacement Seq: 100 100
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par_plus_slot_replacement Slot: 1 1
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par_plus_slot_replacement Slot: 01 1
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par_plus_slot_replacement Slot: 02 2
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par_plus_slot_replacement Slot: 03 3
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par_plus_slot_replacement Slot: 04 4
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par_plus_slot_replacement Slot: 05 5
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par_plus_slot_replacement Slot: 06 6
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par_plus_slot_replacement Slot: 07 7
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par_plus_slot_replacement Slot: 08 8
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par_plus_slot_replacement Slot: 09 9
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par_plus_slot_replacement Slot: 10 10
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par_plus_slot_replacement Slot: 11 11
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par_plus_slot_replacement Slot: 12 12
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par_plus_slot_replacement Slot: 13 13
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par_plus_slot_replacement Slot: 14 14
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par_plus_slot_replacement Slot: 15 15
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par_plus_slot_replacement Slot: 2 2
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par_plus_slot_replacement Slot: 3 3
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par_plus_slot_replacement Slot: 4 4
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par_plus_slot_replacement Slot: 5 5
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par_plus_slot_replacement Slot: 6 6
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par_plus_slot_replacement Slot: 7 7
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par_plus_slot_replacement Slot: 8 8
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par_plus_slot_replacement Slot: 9 9
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par_profiles_with_space ### bug #42902: profiles containing arguments with space
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par_profiles_with_space /bin/bash=/bin/bash
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par_profiles_with_space echo '/bin/bash=/bin/bash'
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