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parallel: Shell detection with rosetta ("busybox" for Docker/arm64).
This commit is contained in:
Ole Tange
parent
56b5e8cb05
commit
9321ac863a
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@ -284,6 +284,16 @@ New in this release:
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News about GNU Parallel:
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https://v2thegreat.com/2024/06/19/lessons-learned-from-scaling-to-multi-terabyte-datasets/
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https://medium.com/@nfrozi/efisiensi-maksimal-cara-paralelisasi-perintah-di-cli-linux-f4fda3afe2a0
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https://usercomp.com/news/1295687/parallel-ssh-file-transfer-with-gnuparallel
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https://usercomp.com/news/1300817/gnu-parallel-process-one-line-with-pipe
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https://datascience.101workbook.org/06-hpc/06-parallel/01-intro-to-gnu-parallel/#gsc.tab=0
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https://www.cyberciti.biz/faq/linux-unix-copy-a-file-to-multiple-directories-using-cp-command/
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<<>>
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GNU Parallel - For people who live life in the parallel lane.
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20
src/parallel
20
src/parallel
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@ -2603,6 +2603,10 @@ sub parse_options(@) {
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# list. Ideas that will cost work and which have not been tested
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# are, however, unlikely to be prioritized.
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#
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# *YOU* will be harming free software by removing the notice. You
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# accept to be added to a public hall of shame by removing the
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# line. That includes you, George and Andreas.
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#
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# Please note that GPL version 3 gives you the right to fork GNU
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# Parallel under a new name, but it does not give you the right to
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# distribute modified copies with the citation notice disabled in
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@ -2636,11 +2640,6 @@ sub parse_options(@) {
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# If you disagree, please read (especially 77-):
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# https://www.fordfoundation.org/media/2976/roads-and-bridges-the-unseen-labor-behind-our-digital-infrastructure.pdf
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# *YOU* will be harming free software by removing the notice. You
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# accept to be added to a public hall of shame by removing the
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# line. That includes you, George and Andreas.
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parse_halt();
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if($ENV{'PARALLEL_ENV'}) {
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@ -6731,10 +6730,10 @@ sub which(@) {
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if(not $regexp) {
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# All shells known to mankind
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#
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# ash bash csh dash fdsh fish fizsh ksh ksh93 mksh pdksh
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# ash bash csh dash fdsh fish fizsh ion ksh ksh93 mksh pdksh
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# posh rbash rc rush rzsh sash sh static-sh tcsh yash zsh
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my @shells = (qw(ash bash bsd-csh csh dash fdsh fish fizsh ksh
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my @shells = (qw(ash bash bsd-csh csh dash fdsh fish fizsh ion ksh
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ksh93 lksh mksh pdksh posh rbash rc rush rzsh sash sh
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static-sh tcsh yash zsh -sh -csh -bash),
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'-sh (sh)' # sh on FreeBSD
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@ -6744,7 +6743,7 @@ sub which(@) {
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# /bin/sh /sbin/sh /opt/csw/sh
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# But not: foo.sh sshd crash flush pdflush scosh fsflush ssh
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$shell = "(?:".join("|",map { "\Q$_\E" } @shells).")";
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$regexp = '^((\[)(-?)('. $shell. ')(\])|(|\S+/|busybox )'.
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$regexp = '^((\[)(-?)('. $shell. ')(\])|(|\S+/|\S*busybox |\S*rosetta )'.
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'(-?)('. $shell. '))( *$| [^(])';
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%fakename = (
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# sh disguises itself as -sh (sh) on FreeBSD
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@ -6776,6 +6775,11 @@ sub which(@) {
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if(open(my $fd, "<", "/proc/$testpid/cmdline")) {
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local $/="\0";
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chomp($shellline = <$fd>);
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if($shellline =~ /busybox$|rosetta$/) {
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# Possibly: busybox \0 sh or .../rosetta \0 /bin/bash
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# Skip busybox/rosetta
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chomp($shellline = <$fd>);
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}
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if($shellline =~ /$regexp/o) {
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my $shellname = $4 || $8;
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my $dash = $3 || $7;
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@ -118,6 +118,10 @@ The following features are in some of the comparable tools:
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=item E7. Only spawn new jobs if load is less than a limit
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=item E8. Full command has non-zero exit value if one job has non-zero exit value
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=item E9. Jobs can be started without reading all input first
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=back
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@ -183,7 +187,7 @@ parallel:
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=item O1 O2 O3 O4 O5 O6 O7 O8 O9 O10
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=item E1 E2 E3 E4 E5 E6 E7
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=item E1 E2 E3 E4 E5 E6 E7 E8 E9
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=item R1 R2 R3 R4 R5 R6 R7 R8 R9
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@ -204,7 +208,7 @@ Summary (see legend above):
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=item - O2 O3 - O5 O6
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=item E1 - - - - - -
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=item E1 - - - - - - E8 E9
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=item - - - - - x - - -
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@ -541,7 +545,7 @@ using GNU B<parallel>:
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'pnmscale 0.5 | pnmtojpeg | sem --id diskio cat > th_{}'
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https://www.gnu.org/software/pexec/
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(Last checked: 2010-12)
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(Last checked: 2024-06)
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=head2 DIFFERENCES BETWEEN xjobs AND GNU Parallel
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@ -614,7 +618,7 @@ using GNU B<parallel>:
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1$ parallel mogrify -flip ::: *.jpg
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https://github.com/exzombie/prll
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(Last checked: 2019-01)
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(Last checked: 2024-06)
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=head2 DIFFERENCES BETWEEN dxargs AND GNU Parallel
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@ -645,7 +649,7 @@ berlios.de/usage.html ported to GNU B<parallel>:
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find dir -execdir sem cmd {} \;
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https://github.com/cklin/mdm
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(Last checked: 2019-01)
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(Last checked: 2014-06)
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=head2 DIFFERENCES BETWEEN xapply AND GNU Parallel
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@ -708,8 +712,8 @@ using GNU B<parallel>:
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11$ parallel '[ -f {} ] && echo {}' < List | ...
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https://www.databits.net/~ksb/msrc/local/bin/xapply/xapply.html (Last
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checked: 2010-12)
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https://www.databits.net/~ksb/msrc/local/bin/xapply/xapply.html
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(Last checked: 2010-12)
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=head2 DIFFERENCES BETWEEN AIX apply AND GNU Parallel
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@ -753,55 +757,358 @@ ssw_aix_71/com.ibm.aix.cmds1/apply.htm
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=head2 DIFFERENCES BETWEEN paexec AND GNU Parallel
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Summary (see legend above):
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=over
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=item I1 - - - - - I7
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=item - - M3 - - -
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=item (O1) O2 O3 (O4) (O5) O6 - O8 x -
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=item E1 - - - (E5) - - -
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=item R1 - - - x R6 - R8 R9
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=item - -
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=back
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B<paexec> can run jobs in parallel on both the local and remote computers.
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B<paexec> requires commands to print a blank line as the last
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output. This means you will have to write a wrapper for most programs.
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B<paexec> has a job dependency facility so a job can depend on another
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job to be executed successfully. Sort of a poor-man's B<make>.
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job to be executed successfully. Sort of a poor-man's B<make>. This
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can partly be emulated in GNU B<parallel> with B<tsort>.
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=head3 EXAMPLES FROM paexec's EXAMPLE CATALOG
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B<paexec> fails if output of a single line is > 2 GB. Output of a 2 GB
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line requires 6 GB RAM. Lines of standard output is interleaved (but
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there is no half line mixing), and output of standard error
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mixes. Combined with B<paexec_reorder> output order can be the same as
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input order. In certain situations B<paexec> will eat the last newline
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of standard output.
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Here are the examples from B<paexec>'s example catalog with the equivalent
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There seems to be no way to make 4 jobs run on a remote server with 4
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cores and 16 jobs on a remote server with 16 cores.
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=head3 EXAMPLES FROM man paexec
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Here are the examples from B<man paexec> with the equivalent using GNU
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B<parallel>.
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1$ paexec -t '/usr/bin/ssh -x' -n 'host1 host2 host3' \
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-le -g -c calculate-me < tasks.txt |
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paexec_reorder -Mf -Sl
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# GNU Parallel cannot stop processing jobs that depend on another.
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# It can either try all:
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1$ tsort tasks.txt |
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parallel --ssh '/usr/bin/ssh -x' -S "host1,host2,host3" \
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--tagstring {#} --pipe -N1 --log my.log calculate-me
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# Or it can stop at the first failing:
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1$ tsort tasks.txt |
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parallel --ssh '/usr/bin/ssh -x' -S "host1,host2,host3" \
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--tagstring {#} --halt now,fail=1 --pipe -N1 --log my.log calculate-me
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# To retry the the failed and missing tasks:
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1$ tsort tasks.txt |
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parallel --ssh '/usr/bin/ssh -x' -S "host1,host2,host3" \
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--tagstring {#} --halt now,fail=1 --pipe -N1 --joblog my.log \
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--resume-failed calculate-me
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2$ ls -1 *.wav | paexec -x -n +4 -c 'oggenc -Q'
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2$ ls -1 *.wav | parallel -j4 oggenc -Q
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3$ ls -1 *.wav | paexec -xCil -n+4 flac -f --silent
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3$ ls -1 *.wav | parallel --tagstring {#} -j4 'echo {}; flac -f --silent {}'
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4$ { uname -s; uname -r; uname -m; } |
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paexec -x -lp -n+2 -c banner |
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paexec_reorder -l
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4$ { uname -s; uname -r; uname -m; } |
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parallel --tagstring '{#}' -k \
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'banner {} | perl -pe "s/^/getppid().\" \"/e"'
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5$ find . -name '*.dat' -print0 |
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paexec -0 -n+10 -C -J// scp // remoteserver:/remote/path
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5$ find . -name '*.dat' -print0 |
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parallel -0 -j10 -I// scp // remoteserver:/remote/path
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6$ ls -1 *.txt | paexec -n+10 -J%% -c 'awk "BEGIN {print toupper(\"%%\")}"'
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6$ ls -1 *.txt | parallel -j10 -I%% 'awk "BEGIN {print toupper(\"%%\")}"'
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=head3 EXAMPLES FROM presentation/paexec.tex
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7$ ls -1 *.wav | \
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paexec -x -c 'flac -s' -n +4 > /dev/null
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7$ ls -1 *.wav | \
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parallel -j4 flac -s > /dev/null
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8$ cat ~/bin/toupper
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#!/usr/bin/awk -f
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{
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print " ", toupper($0)
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print "" # empty line -- end-of-task marker!
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fflush() # We must flush stdout!
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}
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cat tasks
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apple
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bananas
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orange
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paexec -t ssh -c ~/bin/toupper -n 'server1 server2' < tasks
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8$ parallel --pipe -n1 -S server1,server2 ~/bin/toupper < tasks
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9$ paexec -lr -t ssh -c ~/bin/toupper -n 'server1 server2' < tasks
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9$ # GNU Parallel has no easy way to prepend the server
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parallel --tagstring {#} --pipe -n1 -S server1,server2 ~/bin/toupper < tasks
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cat tasks | parallel --tagstring {#} --pipe -n1 -S server1,server2 --plus \
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~/bin/toupper '| perl -pe "s/^/{sshlogin}/"' < tasks
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10$ paexec -n +4 -c ~/bin/toupper < tasks
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10$ parallel -j4 --pipe -n1 ~/bin/toupper < tasks
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11$ paexec -x -t ssh -n 'server1 server2' \
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-c "awk 'BEGIN {print toupper(ARGV[1])}' " < tasks
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11$ parallel -S 'server1,server2' \
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"awk 'BEGIN {print toupper(ARGV[1])}'" < tasks
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12$ paexec -x -C -t ssh -n 'server1 server2' \
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awk 'BEGIN {print toupper(ARGV[1])}' < tasks
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12$ parallel -S 'server1,server2' -q \
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awk 'BEGIN {print toupper(ARGV[1])}' < tasks
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13$ paexec -Z240 -x -t ssh -n 'server1 badhostname server2' \
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-c "awk 'BEGIN {print toupper(ARGV[1])}' " < tasks
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13$ parallel --filter-hosts -S 'server1,badhostname,server2' \
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"awk 'BEGIN {print toupper(ARGV[1])}' " < tasks
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14$ cat ~/bin/pbanner
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#!/usr/bin/env sh
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while read task; do
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banner -f M "$task" | pv -qL 300
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echo "$PAEXEC_EOT" # end-of-task marker
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done
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cat tasks
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pae
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xec
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paexec -l -mt='SE@X-L0S0!&' -c ~/bin/pbanner -n +2 < tasks |
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paexec_reorder -mt='SE@X-L0S0!&'
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14$ paexec -y -lc ~/bin/pbanner -n+2 < tasks | paexec_reorder -y
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14$ paexec -l -x -c banner -n+2 < tasks
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14$ parallel --pipe -n1 -j2 ~/bin/pbanner < tasks
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16$ cat ~/tmp/packages_to_build
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audio/cd-discid audio/abcde
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textproc/gsed audio/abcde
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audio/cdparanoia audio/abcde
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audio/id3v2 audio/abcde
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audio/id3 audio/abcde
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misc/mkcue audio/abcde
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shells/bash audio/abcde
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devel/libtool-base audio/cdparanoia
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devel/gmake audio/cdparanoia
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devel/libtool-base audio/id3lib
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devel/gmake audio/id3v2
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audio/id3lib audio/id3v2
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devel/m4 devel/bison
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lang/f2c devel/libtool-base
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devel/gmake misc/mkcue
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devel/bison shells/bash
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cat ~/bin/pkg_builder
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#!/usr/bin/awk -f
|
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|
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{
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print "build " $0
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print "success" # build succeeded! (paexec -ms=)
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print "" # end-of-task marker
|
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fflush() # we must flush stdout
|
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}
|
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|
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paexec -g -l -c ~/bin/pkg_builder -n 'server2 server1' \
|
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-t ssh < ~/tmp/packages_to_build | paexec_reorder
|
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|
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# GNU Parallel cannot postpone jobs that depend on another.
|
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# In some cases this will work
|
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16$ tsort ~/tmp/packages_to_build | parallel -S server2,server1 \
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--pipe -n1 ~/bin/pkg_builder
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|
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17$ cat ~/bin/pkg_builder
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#!/usr/bin/awk -f
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||||
|
||||
{
|
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print "build " $0
|
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if ($0 == "devel/gmake")
|
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print "failure" # Oh no...
|
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exit 255 # Exit value needed for GNU Parallel
|
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else
|
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print "success" # build succeeded!
|
||||
|
||||
print "" # end-of-task marker
|
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fflush() # we must flush stdout
|
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}
|
||||
|
||||
paexec -gl -c ~/bin/pkg_builder -n 'server2 server1' \
|
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-t ssh < ~/tmp/packages_to_build | paexec_reorder
|
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|
||||
# GNU Parallel cannot refrain from starting jobs, that depend on others
|
||||
# In some cases this will work
|
||||
17$ tsort ~/tmp/packages_to_build | parallel -S server2,server1 \
|
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--halt now,fail=1 --pipe -n1 ~/bin/pkg_builder
|
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|
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18$ cat ~/bin/pkg_builder
|
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#!/usr/bin/awk -f
|
||||
|
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{
|
||||
"hostname -s" | getline hostname
|
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print "build " $0 " on " hostname
|
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|
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if (hostname == "server1" && $0 == "textproc/gsed")
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exit 139
|
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# Damn it, I'm dying...
|
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# Exit value is needed by GNU Parallel
|
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else
|
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print "success" # Yes! :-)
|
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|
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print "" # end-of-task marker
|
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fflush() # we must flush stdout
|
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}
|
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|
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paexec -gl -Z300 -t ssh -c ~/bin/pkg_builder \
|
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-n 'server2 server1' < ~/tmp/packages_to_build |
|
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paexec_reorder > result
|
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|
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# GNU Parallel retries a job on another server, if --retries > 1
|
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17$ tsort ~/tmp/packages_to_build | parallel -S server2,server1 \
|
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--halt now,fail=1 --retries 2 --pipe -n1 ~/bin/pkg_builder
|
||||
|
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18$ ls -1 *.wav | paexec -x -c 'flac -s' -n+3 >/dev/null
|
||||
|
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18$ ls -1 *.wav | parallel -j3 flac -s >/dev/null
|
||||
|
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19$ ls -1 *.wav | paexec -ixC -n+3 oggenc -Q | grep .
|
||||
|
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19$ ls -1 *.wav | parallel -j3 'echo {}; oggenc -Q {}' | grep .
|
||||
|
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20$ cat calc
|
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#!/bin/sh
|
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# $1 -- task given on input
|
||||
if test $1 = huge; then
|
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sleep 6
|
||||
else
|
||||
sleep 1
|
||||
fi
|
||||
echo "task $1 done"
|
||||
|
||||
printf 'small1\nsmall2\nsmall3\nsmall4\nsmall5\nhuge\n' |
|
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time -p paexec -c ~/bin/calc -n +2 -xg | grep -v success
|
||||
|
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20$ printf 'small1\nsmall2\nsmall3\nsmall4\nsmall5\nhuge\n' |
|
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time -p parallel -j2 ~/bin/calc | grep -v success
|
||||
|
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21$ printf 'small1\nsmall2\nsmall3\nsmall4\nweight: huge 6\n' |
|
||||
time -p paexec -c ~/bin/calc -n +2 -x -W1 | grep -v success
|
||||
|
||||
21$ # GNU Parallel does not support weighted jobs.
|
||||
# It can be simulated by sorting:
|
||||
printf 'small1\nsmall2\nsmall3\nsmall4\nweight: huge 6\n' |
|
||||
perl -pe 's/^weight: (.*) (\d+)/$2 $1/ or s/^/1 /' |
|
||||
sort -nr | time parallel ~/bin/calc '{=s/^\d* //=}' |
|
||||
grep -v success
|
||||
|
||||
=head3 EXAMPLES FROM paexec's example dir
|
||||
|
||||
Here are the examples from B<paexec>'s example dir with the equivalent
|
||||
using GNU B<parallel>:
|
||||
|
||||
=head4 1_div_X_run
|
||||
=head4 all_substr
|
||||
|
||||
1$ ../../paexec -s -l -c "`pwd`/1_div_X_cmd" -n +1 <<EOF [...]
|
||||
$ paexec -lpe -c "`pwd`/cmd" -n +3 <<EOF
|
||||
|
||||
1$ parallel echo {} '|' `pwd`/1_div_X_cmd <<EOF [...]
|
||||
$ parallel -j3 --pipe -n1 --tagstring {#} \
|
||||
'./cmd | perl -pe "s/^/getppid().\" \"/e"' <<EOF
|
||||
|
||||
=head4 all_substr_run
|
||||
=head4 cc_wrapper
|
||||
|
||||
2$ ../../paexec -lp -c "`pwd`/all_substr_cmd" -n +3 <<EOF [...]
|
||||
|
||||
2$ parallel echo {} '|' `pwd`/all_substr_cmd <<EOF [...]
|
||||
|
||||
=head4 cc_wrapper_run
|
||||
|
||||
3$ ../../paexec -c "env CC=gcc CFLAGS=-O2 `pwd`/cc_wrapper_cmd" \
|
||||
$ paexec -c "env CC=gcc CFLAGS=-O2 `pwd`/cmd" \
|
||||
-n 'host1 host2' \
|
||||
-t '/usr/bin/ssh -x' <<EOF [...]
|
||||
-t '/usr/bin/ssh -x' <<EOF
|
||||
|
||||
3$ parallel echo {} '|' "env CC=gcc CFLAGS=-O2 `pwd`/cc_wrapper_cmd" \
|
||||
-S host1,host2 <<EOF [...]
|
||||
$ parallel --pipe -n1 -S 'host1,host2' \
|
||||
"env CC=gcc CFLAGS=-O2 `pwd`/cmd" <<EOF
|
||||
|
||||
# This is not exactly the same, but avoids the wrapper
|
||||
parallel gcc -O2 -c -o {.}.o {} \
|
||||
-S host1,host2 <<EOF [...]
|
||||
# This is not exactly the same, but avoids the wrapper
|
||||
$ parallel -S host1,host2 gcc -O2 -c -o {.}.o {} <<EOF
|
||||
|
||||
=head4 toupper_run
|
||||
=head4 cc_wrapper2
|
||||
|
||||
4$ ../../paexec -lp -c "`pwd`/toupper_cmd" -n +10 <<EOF [...]
|
||||
$ ls -1 $PWD/*.c | paexec -c "env $CC $CFLAGS -c " -n +4 -x
|
||||
|
||||
4$ parallel echo {} '|' ./toupper_cmd <<EOF [...]
|
||||
$ ls -1 $PWD/*.c | parallel -j4 "env $CC $CFLAGS -c"
|
||||
|
||||
# Without the wrapper:
|
||||
parallel echo {} '| awk {print\ toupper\(\$0\)}' <<EOF [...]
|
||||
=head4 dirtest
|
||||
|
||||
$ paexec -gx -l -c 'test -d' -md=';' -n +3 < tasks
|
||||
|
||||
# GNU Parallel cannot refrain from starting jobs, that depend on others
|
||||
$ parallel -j3 --tag test -d '{= s/.*;// =}; echo $?' < tasks
|
||||
|
||||
=head4 divide
|
||||
|
||||
$ paexec -s -l -c cmd_divide -n +3 <<EOF
|
||||
|
||||
# GNU Parallel cannot refrain from starting jobs, that depend on others
|
||||
$ parallel -j3 --pipe -n1 cmd_divide <<EOF
|
||||
|
||||
=head4 make_package
|
||||
|
||||
1$ paexec -g -le -c "`pwd`/cmd" -n +3 < tasks | paexec_reorder -g -Ms
|
||||
|
||||
# GNU Parallel cannot refrain from starting jobs, that depend on others
|
||||
1$ cat < tasks | parallel --pipe -n1 -j3 "`pwd`/cmd"
|
||||
|
||||
2$ paexec -g -le -c "`pwd`/cmd" -n +3 < tasks_cycle
|
||||
|
||||
2$ tsort < tasks_cycle | parallel --pipe -n1 -j3 "`pwd`/cmd"
|
||||
|
||||
=head4 toupper
|
||||
|
||||
$ input | paexec -c "`pwd`/cmd" -n +2 | cut -b 2-
|
||||
|
||||
$ input | parallel --pipe -n1 -j2 "`pwd`/cmd" | cut -b 2-
|
||||
|
||||
$ # Without the wrapper:
|
||||
input | parallel --pipe -n1 -j2 'awk {print\ toupper\(\$0\)}'
|
||||
|
||||
=head4 wav2flac
|
||||
|
||||
$ ls -1 "$dir"/*.wav | paexec -x -c 'flac --silent' -n +"$num"
|
||||
|
||||
$ ls -1 "$dir"/*.wav | parallel -j $num flac --silent
|
||||
|
||||
https://github.com/cheusov/paexec
|
||||
(Last checked: 2010-12)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN map(sitaramc) AND GNU Parallel
|
||||
|
|
@ -989,7 +1296,7 @@ and that it is run under a shell that supports '**' globbing (such as B<zsh>):
|
|||
4$ parallel lame -V 2 FULLPATH DIRNAME/BASENAME.mp3 ::: ~/Music/*.wav
|
||||
|
||||
https://github.com/danielgtaylor/ladon
|
||||
(Last checked: 2019-01)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN jobflow AND GNU Parallel
|
||||
|
|
@ -1067,7 +1374,7 @@ jobs. This can be emulated by GNU B<parallel> using B<bash>'s B<ulimit>:
|
|||
5$ seq 100 | parallel echo '{= $_>10 and $_<=20 or skip() =}'
|
||||
|
||||
https://github.com/rofl0r/jobflow
|
||||
(Last checked: 2022-05)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN gargs AND GNU Parallel
|
||||
|
|
@ -1641,10 +1948,10 @@ computer has 8 cores).
|
|||
|
||||
GNU B<parallel> can be used as a poor-man's version of ClusterSSH:
|
||||
|
||||
B<parallel --nonall -S server-a,server-b do_stuff foo bar>
|
||||
parallel --nonall -S server-a,server-b do_stuff foo bar
|
||||
|
||||
https://github.com/duncs/clusterssh
|
||||
(Last checked: 2010-12)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN coshell AND GNU Parallel
|
||||
|
|
@ -1693,7 +2000,7 @@ It can be emulated with GNU B<parallel> using this Bash function:
|
|||
}
|
||||
|
||||
https://github.com/tfogo/spread
|
||||
(Last checked: 2024-04)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN pyargs AND GNU Parallel
|
||||
|
|
@ -1737,7 +2044,7 @@ and fails on B<pyargs traceroute gnu.org fsf.org>.
|
|||
parallel seq ::: 1 2 3 4 5 6
|
||||
|
||||
https://github.com/robertblackwell/pyargs
|
||||
(Last checked: 2019-01)
|
||||
(Last checked: 2024-01)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN concurrently AND GNU Parallel
|
||||
|
|
@ -2022,7 +2329,7 @@ template to generate the jobs, but requires jobs to be in a
|
|||
file. Output from the jobs mix.
|
||||
|
||||
https://github.com/john01dav/spp
|
||||
(Last checked: 2019-01)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN paral AND GNU Parallel
|
||||
|
|
@ -2092,7 +2399,7 @@ the GNU B<parallel> command):
|
|||
echo g && sleep 0.5 && echo h"
|
||||
|
||||
https://github.com/amattn/paral
|
||||
(Last checked: 2019-01)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN concurr AND GNU Parallel
|
||||
|
|
@ -2120,7 +2427,7 @@ B<concurr> deals badly empty input files and with output larger than
|
|||
64 KB.
|
||||
|
||||
https://github.com/mmstick/concurr
|
||||
(Last checked: 2019-01)
|
||||
(Last checked: 2024-01)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN lesser-parallel AND GNU Parallel
|
||||
|
|
@ -2134,7 +2441,7 @@ hardly any options, whereas B<parallel --embed> gives you the full
|
|||
GNU B<parallel> experience.
|
||||
|
||||
https://github.com/kou1okada/lesser-parallel
|
||||
(Last checked: 2019-01)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN npm-parallel AND GNU Parallel
|
||||
|
|
@ -2145,7 +2452,7 @@ There are no examples and very little documentation, so it is hard to
|
|||
compare to GNU B<parallel>.
|
||||
|
||||
https://github.com/spion/npm-parallel
|
||||
(Last checked: 2019-01)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN machma AND GNU Parallel
|
||||
|
|
@ -2359,7 +2666,7 @@ https://github.com/codingo/Interlace
|
|||
I have been unable to get the code to run at all. It seems unfinished.
|
||||
|
||||
https://github.com/otonvm/Parallel
|
||||
(Last checked: 2019-02)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN k-bx par AND GNU Parallel
|
||||
|
|
@ -2434,7 +2741,7 @@ will cause the system to freeze if there are so many jobs that there
|
|||
is not enough memory to run them all at the same time.
|
||||
|
||||
https://github.com/royriojas/shell-executor
|
||||
(Last checked: 2019-02)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN non-GNU par AND GNU Parallel
|
||||
|
|
@ -2555,7 +2862,7 @@ corresponding GNU B<sem> and GNU B<parallel> commands:
|
|||
wait
|
||||
|
||||
https://github.com/akramer/lateral
|
||||
(Last checked: 2019-03)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN with-this AND GNU Parallel
|
||||
|
|
@ -2589,7 +2896,7 @@ B<with-this> gives some additional information, so the output has to
|
|||
be cleaned before piping it to the next command.
|
||||
|
||||
https://github.com/amritb/with-this.git
|
||||
(Last checked: 2019-03)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN Tollef's parallel (moreutils) AND GNU Parallel
|
||||
|
|
@ -2736,7 +3043,7 @@ lost. B<threader> buffers in RAM, so output bigger than the machine's
|
|||
virtual memory will cause the machine to crash.
|
||||
|
||||
https://github.com/voodooEntity/threader
|
||||
(Last checked: 2020-04)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN runp AND GNU Parallel
|
||||
|
|
@ -3020,7 +3327,7 @@ composed commands.
|
|||
|
||||
|
||||
https://github.com/ctbur/async/
|
||||
(Last checked: 2023-01)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN pardi AND GNU Parallel
|
||||
|
|
@ -3121,7 +3428,7 @@ You cannot quote space in the command, so you cannot run composed
|
|||
commands like B<sh -c "echo a; echo b">.
|
||||
|
||||
https://gitlab.com/netikras/bthread
|
||||
(Last checked: 2021-01)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN simple_gpu_scheduler AND GNU Parallel
|
||||
|
|
@ -3187,7 +3494,7 @@ Summary (see legend above):
|
|||
seq 3 | parallel echo true >> gpu.queue
|
||||
|
||||
https://github.com/ExpectationMax/simple_gpu_scheduler
|
||||
(Last checked: 2021-01)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN parasweep AND GNU Parallel
|
||||
|
|
@ -3250,7 +3557,7 @@ https://github.com/eviatarbach/parasweep
|
|||
(Last checked: 2021-01)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN parallel-bash AND GNU Parallel
|
||||
=head2 DIFFERENCES BETWEEN parallel-bash(2021) AND GNU Parallel
|
||||
|
||||
Summary (see legend above):
|
||||
|
||||
|
|
@ -3313,8 +3620,99 @@ running jobs.
|
|||
|
||||
4$ something | parallel -j 5 echo {} {}
|
||||
|
||||
https://reposhub.com/python/command-line-tools/Akianonymus-parallel-bash.html
|
||||
(Last checked: 2021-06)
|
||||
https://github.com/Akianonymus/parallel-bash/
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN parallel-bash(2024) AND GNU Parallel
|
||||
|
||||
Summary (see legend above):
|
||||
|
||||
=over
|
||||
|
||||
=item I1 I2 - - - - -
|
||||
|
||||
=item - - M3 - - M6
|
||||
|
||||
=item - O2 O3 - O5 O6 - O8 x O10
|
||||
|
||||
=item E1 - - - - - -
|
||||
|
||||
=item - - - - - - - - -
|
||||
|
||||
=item - -
|
||||
|
||||
=back
|
||||
|
||||
B<parallel-bash> is written in pure bash. It is really fast (overhead
|
||||
of ~0.05 ms/job compared to GNU B<parallel>'s 3-10 ms/job). So if your
|
||||
jobs are extremely short lived, and you can live with the quite
|
||||
limited command, this may be useful.
|
||||
|
||||
It seems the number of jobs must be divisible by B<-p>, so it
|
||||
sometimes does not run the jobs:
|
||||
|
||||
# Does nothing
|
||||
$ seq 3 | parallel-bash -p 4 bash -c 'touch myfile-{}'
|
||||
|
||||
This should create myfile-1..3, but creates nothing.
|
||||
|
||||
It splits the input into queues. Each queue is of length B<-p>. So
|
||||
this will make 250 queues and run all 250 processes in parallel:
|
||||
|
||||
$ seq 1000 | parallel-bash -p 4 bash -c 'sleep {}'
|
||||
|
||||
This is quite different from B<parallel-bash>(2021) where B<-p> is the
|
||||
number of workers - similar to B<--jobs> in GNU B<parallel>.
|
||||
|
||||
In other words: B<parallel-bash> does I<not> quarantee that only 4 jobs
|
||||
will be run in parallel. This can overload your machine:
|
||||
|
||||
# Warning: This will start 25000 processes - not just 4
|
||||
$ seq 100000 | parallel-bash -p 4 sleep {}
|
||||
|
||||
If you are unlucky all long jobs may end up in the same queue:
|
||||
|
||||
$ printf "%b\n" 1 1 1 1 5 5 5 5 1 1 1 1 |
|
||||
time parallel -P4 sleep {}
|
||||
(7 seconds)
|
||||
$ printf "%b\n" 1 1 1 1 5 5 5 5 1 1 1 1 |
|
||||
time ./parallel-bash.bash -p 4 -c sleep {}
|
||||
(20 seconds)
|
||||
|
||||
Ctrl-C kills the jobs (as expected). Ctrl-Z does not suspend running jobs.
|
||||
|
||||
|
||||
=head3 EXAMPLES FROM parallel-bash
|
||||
|
||||
1$ main() { echo "${1}" ;}
|
||||
export -f main
|
||||
|
||||
1$ printf "%b\n" {1..1000} | ./parallel-bash -p 10 main {}
|
||||
|
||||
1$ printf "%b\n" {1..1000} | parallel -j 100 main {}
|
||||
|
||||
2$ # Number of inputs must be divisible by 5
|
||||
some_input | parallel-bash -p 5 echo
|
||||
|
||||
2$ some_input | parallel -j 5 echo
|
||||
|
||||
3$ # Number of inputs must be divisible by 5
|
||||
parallel-bash -p 5 echo < some_file
|
||||
|
||||
3$ parallel -j 5 echo < some_file
|
||||
|
||||
4$ # Number of lines in 'some string' must be divisible by 5
|
||||
parallel-bash -p 5 echo <<< 'some string'
|
||||
|
||||
4$ parallel -j 5 -c echo <<< 'some string'
|
||||
|
||||
5$ something | parallel-bash -p 5 echo {}
|
||||
|
||||
5$ something | parallel -j 5 echo {}
|
||||
|
||||
https://github.com/Akianonymus/parallel-bash/
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN bash-concurrent AND GNU Parallel
|
||||
|
|
@ -3336,7 +3734,7 @@ It uses an O(n*n) algorithm, so if you have 1000 independent jobs it
|
|||
takes 22 seconds to start it.
|
||||
|
||||
https://github.com/themattrix/bash-concurrent
|
||||
(Last checked: 2021-02)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN spawntool AND GNU Parallel
|
||||
|
|
@ -3362,7 +3760,6 @@ Summary (see legend above):
|
|||
B<spawn> reads a full command line from stdin which it executes in
|
||||
parallel.
|
||||
|
||||
|
||||
http://code.google.com/p/spawntool/
|
||||
(Last checked: 2021-07)
|
||||
|
||||
|
|
@ -3426,7 +3823,7 @@ Summary (see legend above):
|
|||
|
||||
=over
|
||||
|
||||
=item I1 I2 - - - - I7
|
||||
=item I1 I2 - - - - (I7)
|
||||
|
||||
=item - - M3 - - M6
|
||||
|
||||
|
|
@ -3443,6 +3840,34 @@ Summary (see legend above):
|
|||
B<go-parallel> uses Go templates for replacement strings. Quite
|
||||
similar to the I<{= perl expr =}> replacement string.
|
||||
|
||||
The basic replacement strings can be emulated by putting this into
|
||||
B<~/.parallel/config>:
|
||||
|
||||
--rpl '{{.Input}} '
|
||||
--rpl '{{.Time}} use DateTime; $_= DateTime->from_epoch(time);'
|
||||
--rpl '{{.Start}} use DateTime; $_= DateTime->from_epoch($^T);'
|
||||
|
||||
Then you can do:
|
||||
|
||||
seq 10 | parallel sleep {{.Input}}';' echo {{.Start}} {{.Time}}
|
||||
seq 10 | go-parallel -t 'bash -c "sleep {{.Input}}; echo \"{{.Start}}\" \"{{.Time}}\""'
|
||||
|
||||
If the input is too long (64K), you get no error:
|
||||
|
||||
perl -e 'print "works."."x"x100' | parallel.go -t 'echo {{noExt .Input}} '
|
||||
perl -e 'print "fails."."x"x100_000_000' | parallel.go -t 'echo {{noExt .Input}} '
|
||||
|
||||
Special chars are quoted:
|
||||
|
||||
echo '"&+<>' | go-parallel echo
|
||||
"&+<>
|
||||
|
||||
but not shell quoted when using replacement strings:
|
||||
|
||||
echo '"&+<>' | go-parallel -t 'echo {{.Input}}'
|
||||
"&+<>
|
||||
|
||||
|
||||
=head3 EXAMPLES FROM go-parallel
|
||||
|
||||
1$ go-parallel -a ./files.txt -t 'cp {{.Input}} {{.Input | dirname | dirname}}'
|
||||
|
|
@ -3457,8 +3882,14 @@ similar to the I<{= perl expr =}> replacement string.
|
|||
|
||||
3$ parallel -a ./files.txt echo mkdir -p {} {/.}
|
||||
|
||||
4$ time find ~/src/go -type f | go-parallel md5sum > /dev/null
|
||||
|
||||
4$ time find ~/src/go -type f | parallel md5sum > /dev/null
|
||||
# Though you would probably do this instead:
|
||||
time find ~/src/go -type f | parallel -X md5sum > /dev/null
|
||||
|
||||
https://github.com/mylanconnolly/parallel
|
||||
(Last checked: 2021-07)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN p AND GNU Parallel
|
||||
|
|
@ -4067,7 +4498,7 @@ jobs to run in parallel.
|
|||
It is half as fast as GNU B<parallel> for short jobs.
|
||||
|
||||
https://github.com/thilinaba/bash-parallel
|
||||
(Last checked: 2023-05)
|
||||
(Last checked: 2024-06)
|
||||
|
||||
|
||||
=head2 DIFFERENCES BETWEEN PaSH AND GNU Parallel
|
||||
|
|
@ -4305,7 +4736,7 @@ Summary (see legend above):
|
|||
|
||||
=item - - - - - -
|
||||
|
||||
=item - O2 O3 N/A - O6 - x x ?O10
|
||||
=item - O2 O3 x - O6 - x x ?O10
|
||||
|
||||
=item E1 - - - E5 - -
|
||||
|
||||
|
|
@ -4421,6 +4852,7 @@ cause segfault.
|
|||
https://github.com/simonjwright/parallelize
|
||||
(Last checked: 2024-04)
|
||||
|
||||
|
||||
=head2 Todo
|
||||
|
||||
https://github.com/justanhduc/task-spooler
|
||||
|
|
@ -4477,7 +4909,7 @@ This test stresses whether output mixes.
|
|||
|
||||
paralleltool="parallel -j 30"
|
||||
|
||||
cat <<-EOF > mycommand
|
||||
cat <<-'EOF' > mycommand
|
||||
#!/bin/bash
|
||||
|
||||
# If a, b, c, d, e, and f mix: Very bad
|
||||
|
|
@ -4487,18 +4919,26 @@ This test stresses whether output mixes.
|
|||
perl -e 'print STDERR "d"x3000_000," "'
|
||||
perl -e 'print STDOUT "e"x3000_000," "'
|
||||
perl -e 'print STDERR "f"x3000_000," "'
|
||||
echo
|
||||
echo >&2
|
||||
echo "stdout line 1 of id $@"
|
||||
echo "stderr line 1 of id $@" >&2
|
||||
perl -e 'print STDOUT "A"x3000_000," "'
|
||||
perl -e 'print STDERR "B"x3000_000," "'
|
||||
perl -e 'print STDOUT "C"x3000_000," "'
|
||||
perl -e 'print STDERR "D"x3000_000," "'
|
||||
perl -e 'print STDOUT "E"x3000_000," "'
|
||||
perl -e 'print STDERR "F"x3000_000," "'
|
||||
echo "stdout line 2 of id $@"
|
||||
echo "stderr line 2 of id $@" >&2
|
||||
EOF
|
||||
chmod +x mycommand
|
||||
|
||||
# Run 30 jobs in parallel
|
||||
seq 30 |
|
||||
$paralleltool ./mycommand > >(tr -s abcdef) 2> >(tr -s abcdef >&2)
|
||||
$paralleltool -j 30 ./mycommand > >(tr -s a-zA-Z) 2> >(tr -s a-zA-Z >&2)
|
||||
|
||||
# 'a c e' and 'b d f' should always stay together
|
||||
# and there should only be a single line per job
|
||||
|
||||
# For each job there be 2 lines of standard output and standard error
|
||||
# They should not be interleaved with other id's
|
||||
|
||||
=head2 STDERRMERGE: Stderr is merged with stdout
|
||||
|
||||
|
|
@ -4674,7 +5114,12 @@ Some tools become very slow if output lines have many words.
|
|||
#!/bin/bash
|
||||
|
||||
paralleltool="parallel -j0"
|
||||
|
||||
|
||||
wcc() {
|
||||
parallel --recend '' --block 100M --pipe 'LC_ALL=C wc' |
|
||||
datamash -W sum 1 sum 2 sum 3
|
||||
}
|
||||
|
||||
cat <<-EOF > mycommand
|
||||
#!/bin/bash
|
||||
|
||||
|
|
@ -4683,7 +5128,7 @@ Some tools become very slow if output lines have many words.
|
|||
chmod +x mycommand
|
||||
|
||||
# Run 1 job
|
||||
seq 1 | $paralleltool ./mycommand | LC_ALL=C wc
|
||||
seq 1 | $paralleltool ./mycommand | wcc
|
||||
|
||||
|
||||
=head1 AUTHOR
|
||||
|
|
|
|||
|
|
@ -905,6 +905,24 @@ combined in the correct order.
|
|||
{}0000000-{}9999999 https://example.com/the/big/file > file
|
||||
|
||||
|
||||
=head2 EXAMPLE: Keep order, but make job 1 output fast
|
||||
|
||||
If you want the output of job 1 unbuffered, but otherwise keep the
|
||||
order, you can do this:
|
||||
|
||||
doit() {
|
||||
echo "$@" ERR >&2
|
||||
echo "$@" out
|
||||
sleep 0.$1
|
||||
echo "$@" ERR >&2
|
||||
echo "$@" out
|
||||
}
|
||||
export -f doit
|
||||
parallel -k -u doit {= 'seq() > 1 and $opt::ungroup = 0' =} ::: 9 1 2 3
|
||||
|
||||
It will output job 1 with less overhead.
|
||||
|
||||
|
||||
=head2 EXAMPLE: Parallel grep
|
||||
|
||||
B<grep -r> greps recursively through directories. GNU B<parallel> can
|
||||
|
|
|
|||
Loading…
Reference in a new issue