mirror of
https://git.savannah.gnu.org/git/parallel.git
synced 2024-11-22 14:07:55 +00:00
niceload: --battery: Run when not on battery.
parallel: Code cleanup.
This commit is contained in:
Ole Tange
parent
ba267c7a07
commit
c0b26cdea7
|
|
@ -235,6 +235,23 @@ Haiku of the month:
|
|||
|
||||
New in this release:
|
||||
|
||||
* GNU Parallel was cited in: Exclusion of cosmic rays in protoplanetary disks. II. Chemical gradients and observational signatures http://iopscience.iop.org/0004-637X/794/2/123/article
|
||||
|
||||
* GNU Parallel was cited in: Application of Machine Learning to Algorithm Selection for TSP http://www.dbai.tuwien.ac.at/staff/musliu/art_ictai_cam.pdf
|
||||
|
||||
* GNU Parallel was used (unfortunately without citation) in: De Novo Insertions and Deletions of Predominantly Paternal Origin Are Associated with Autism Spectrum Disorder http://www.cell.com/cms/attachment/2019079667/2039310868/mmc1.pdf
|
||||
|
||||
* GNU Parallel is demonstrated in: Data Science at the Command Line: Facing the Future with Time-Tested Tools
|
||||
|
||||
* GNU Parallel and how to get started with it http://www.jduck.net/blog/2014/09/30/gnu-paralell/
|
||||
|
||||
* Comparing Golang, Scala, Elixir and Ruby for ETL http://www.dimroc.com/2014/09/29/etl-language-showdown/
|
||||
|
||||
* Ubuntu 13.04でGNU ParallelをGNUモードで動かす http://qiita.com/YusukeSuzuki@github/items/7b96b5876bf980f21e85
|
||||
|
||||
* Parallelizing Batch Jobs for Fun and Profit http://mikeseidle.com/tech/programming/2013/03/parallelizing-batch-jobs
|
||||
|
||||
* Bug fixes and man page updates.
|
||||
|
||||
GNU Parallel - For people who live life in the parallel lane.
|
||||
|
||||
|
|
@ -259,6 +276,23 @@ When using programs that use GNU Parallel to process data for publication please
|
|||
|
||||
O. Tange (2011): GNU Parallel - The Command-Line Power Tool, ;login: The USENIX Magazine, February 2011:42-47.
|
||||
|
||||
If you like GNU Parallel:
|
||||
|
||||
* Give a demo at your local user group/team/colleagues
|
||||
* Post the intro videos on Reddit/Diaspora*/forums/blogs/ Identi.ca/Google+/Twitter/Facebook/Linkedin/mailing lists
|
||||
* Get the merchandise https://www.gnu.org/s/parallel/merchandise.html
|
||||
* Request or write a review for your favourite blog or magazine
|
||||
* Request or build a package for your favourite distribution (if it is not already there)
|
||||
* Invite me for your next conference
|
||||
|
||||
If you use GNU Parallel for research:
|
||||
|
||||
* Please cite GNU Parallel in you publications (use --bibtex)
|
||||
|
||||
If GNU Parallel saves you money:
|
||||
|
||||
* (Have your company) donate to FSF https://my.fsf.org/donate/
|
||||
|
||||
|
||||
= About GNU SQL =
|
||||
|
||||
|
|
|
|||
20
src/niceload
20
src/niceload
|
|
@ -3,8 +3,8 @@
|
|||
# Copyright (C) 2004,2005,2006,2006,2008,2009,2010 Ole Tange,
|
||||
# http://ole.tange.dk
|
||||
#
|
||||
# Copyright (C) 2010,2011 Ole Tange, http://ole.tange.dk and Free
|
||||
# Software Foundation, Inc.
|
||||
# Copyright (C) 2010,2011,2012,2013,2014 Ole Tange,
|
||||
# http://ole.tange.dk and Free Software Foundation, Inc.
|
||||
#
|
||||
# This program is free software; you can redistribute it and/or modify
|
||||
# it under the terms of the GNU General Public License as published by
|
||||
|
|
@ -180,6 +180,9 @@ sub get_options_from_array {
|
|||
"rn|runnoswap|run-noswap|run-no-swap" => \$opt::run_noswap,
|
||||
"noswap|N" => \$opt::noswap,
|
||||
|
||||
# niceload -l -1 --sensor 'cat /sys/class/power_supply/BAT0/status /proc/acpi/battery/BAT0/state 2>/dev/null |grep -i -q discharging; echo $?'
|
||||
"battery|B" => \$opt::battery,
|
||||
|
||||
"nice|n=i" => \$opt::nice,
|
||||
"program|prg=s" => \@opt::prg,
|
||||
"process|pid|p=s" => \@opt::pid,
|
||||
|
|
@ -236,6 +239,13 @@ sub usleep {
|
|||
select(undef, undef, undef, $secs/1000);
|
||||
}
|
||||
|
||||
sub deepusleep {
|
||||
# Sleep this many milliseconds. Dont let children wake us up
|
||||
my $sigchld = $SIG{'CHLD'};
|
||||
$SIG{'CHLD'} = undef;
|
||||
usleep(@_);
|
||||
$SIG{'CHLD'} = $sigchld;
|
||||
}
|
||||
|
||||
sub debug {
|
||||
if($opt::debug) {
|
||||
|
|
@ -606,8 +616,7 @@ sub sleep_for_recheck {
|
|||
print STDERR "Sleeping $self->{'recheck'}s\n";
|
||||
}
|
||||
::debug("recheck in $self->{'recheck'}s\n");
|
||||
::usleep(1); # For some reason this gets interrupted
|
||||
::usleep(1000*$self->{'recheck'});
|
||||
::deepusleep(1000*$self->{'recheck'});
|
||||
}
|
||||
|
||||
|
||||
|
|
@ -618,8 +627,7 @@ sub sleep_while_running {
|
|||
$self->{'runtime'} = int($self->{'runtime'}*100)/100;
|
||||
print STDERR "Running $self->{'runtime'}s\n";
|
||||
}
|
||||
::usleep(1); # For some reason this gets interrupted
|
||||
::usleep(1000*$self->{'runtime'});
|
||||
::deepusleep(1000*$self->{'runtime'});
|
||||
}
|
||||
|
||||
|
||||
|
|
|
|||
216
src/parallel
216
src/parallel
|
|
@ -200,6 +200,14 @@ sub pipe_part_files {
|
|||
}
|
||||
|
||||
sub find_header {
|
||||
# Input:
|
||||
# $buf_ref = reference to read-in buffer
|
||||
# $fh = filehandle to read from
|
||||
# Uses:
|
||||
# $opt::header
|
||||
# $opt::blocksize
|
||||
# Returns:
|
||||
# $header string
|
||||
my ($buf_ref, $fh) = @_;
|
||||
my $header = "";
|
||||
if($opt::header) {
|
||||
|
|
@ -285,6 +293,17 @@ sub cat_partial {
|
|||
sub spreadstdin {
|
||||
# read a record
|
||||
# Spawn a job and print the record to it.
|
||||
# Uses:
|
||||
# $opt::blocksize
|
||||
# STDIN
|
||||
# $opr::r
|
||||
# $Global::max_lines
|
||||
# $Global::max_number_of_args
|
||||
# $opt::regexp
|
||||
# $Global::start_no_new_jobs
|
||||
# $opt::roundrobin
|
||||
# %Global::running
|
||||
|
||||
my $buf = "";
|
||||
my ($recstart,$recend) = recstartrecend();
|
||||
my $recendrecstart = $recend.$recstart;
|
||||
|
|
@ -453,10 +472,20 @@ sub nindex {
|
|||
}
|
||||
|
||||
sub round_robin_write {
|
||||
# Input:
|
||||
# $header_ref = ref to $header string
|
||||
# $block_ref = ref to $block to be written
|
||||
# $recstart = record start string
|
||||
# $recend = record end string
|
||||
# $endpos = end position of $block
|
||||
# Uses:
|
||||
# %Global::running
|
||||
my ($header_ref,$block_ref,$recstart,$recend,$endpos) = @_;
|
||||
my $something_written = 0;
|
||||
my $block_passed = 0;
|
||||
while(not $block_passed) {
|
||||
# Continue flushing existing buffers
|
||||
# until one is empty and a new block is passed
|
||||
while(my ($pid,$job) = each %Global::running) {
|
||||
if($job->stdin_buffer_length() > 0) {
|
||||
$something_written += $job->non_block_write();
|
||||
|
|
@ -469,8 +498,6 @@ sub round_robin_write {
|
|||
}
|
||||
}
|
||||
}
|
||||
|
||||
# http://docstore.mik.ua/orelly/perl/cookbook/ch07_15.htm
|
||||
start_more_jobs();
|
||||
return $something_written;
|
||||
}
|
||||
|
|
@ -479,6 +506,19 @@ sub round_robin_write {
|
|||
sub write_record_to_pipe {
|
||||
# Fork then
|
||||
# Write record from pos 0 .. $endpos to pipe
|
||||
# Input:
|
||||
# $chunk_number = sequence number - to see if already run
|
||||
# $header_ref = reference to header string to prepend
|
||||
# $record_ref = reference to record to write
|
||||
# $recstart = start string of record
|
||||
# $recend = end string of record
|
||||
# $endpos = position in $record_ref where record ends
|
||||
# Uses:
|
||||
# $Global::job_already_run
|
||||
# $opt::roundrobin
|
||||
# @Global::virgin_jobs
|
||||
# Returns:
|
||||
# Number of chunks written (0 or 1)
|
||||
my ($chunk_number,$header_ref,$record_ref,$recstart,$recend,$endpos) = @_;
|
||||
if($endpos == 0) { return 0; }
|
||||
if(vec($Global::job_already_run,$chunk_number,1)) { return 1; }
|
||||
|
|
@ -520,6 +560,8 @@ sub __SEM_MODE__ {}
|
|||
|
||||
sub acquire_semaphore {
|
||||
# Acquires semaphore. If needed: spawns to the background
|
||||
# Uses:
|
||||
# @Global::host
|
||||
# Returns:
|
||||
# The semaphore to be released when jobs is complete
|
||||
$Global::host{':'} = SSHLogin->new(":");
|
||||
|
|
@ -547,7 +589,8 @@ sub acquire_semaphore {
|
|||
sub __PARSE_OPTIONS__ {}
|
||||
|
||||
sub options_hash {
|
||||
# Returns a hash of the GetOptions config
|
||||
# Returns:
|
||||
# %hash = the GetOptions config
|
||||
return
|
||||
("debug|D=s" => \$opt::D,
|
||||
"xargs" => \$opt::xargs,
|
||||
|
|
@ -686,10 +729,15 @@ sub options_hash {
|
|||
|
||||
sub get_options_from_array {
|
||||
# Run GetOptions on @array
|
||||
# Input:
|
||||
# $array_ref = ref to @ARGV to parse
|
||||
# @keep_only = Keep only these options
|
||||
# Uses:
|
||||
# @ARGV
|
||||
# Returns:
|
||||
# true if parsing worked
|
||||
# false if parsing failed
|
||||
# @array is changed
|
||||
# @$array_ref is changed
|
||||
my ($array_ref, @keep_only) = @_;
|
||||
if(not @$array_ref) {
|
||||
# Empty array: No need to look more at that
|
||||
|
|
@ -1013,6 +1061,10 @@ sub parse_options {
|
|||
}
|
||||
|
||||
sub env_quote {
|
||||
# Input:
|
||||
# $v = value to quote
|
||||
# Returns:
|
||||
# $v = value quoted as environment variable
|
||||
my $v = $_[0];
|
||||
$v =~ s/([\\])/\\$1/g;
|
||||
$v =~ s/([\[\] \#\'\&\<\>\(\)\;\{\}\t\"\$\`\*\174\!\?\~])/\\$1/g;
|
||||
|
|
@ -1033,7 +1085,14 @@ sub record_env {
|
|||
}
|
||||
|
||||
sub parse_env_var {
|
||||
# Parse --env and set $Global::envvar
|
||||
# Parse --env and set $Global::envvar, $Global::envwarn and $Global::envvarlen
|
||||
# Uses:
|
||||
# $Global::envvar = eval string that will set variables in both bash and csh
|
||||
# $Global::envwarn = If functions are used: Give warning in csh
|
||||
# $Global::envvarlen = length of $Global::envvar
|
||||
# @opt::env
|
||||
# $Global::shell
|
||||
# %ENV
|
||||
# Returns: N/A
|
||||
$Global::envvar = "";
|
||||
$Global::envwarn = "";
|
||||
|
|
@ -1043,6 +1102,7 @@ sub parse_env_var {
|
|||
push @vars, split /,/, $varstring;
|
||||
}
|
||||
if(grep { /^_$/ } @vars) {
|
||||
# --env _
|
||||
# Include all vars that are not in a clean environment
|
||||
if(open(my $vars_fh, "<", $ENV{'HOME'} . "/.parallel/ignored_vars")) {
|
||||
my @ignore = <$vars_fh>;
|
||||
|
|
@ -1096,6 +1156,14 @@ sub parse_env_var {
|
|||
}
|
||||
|
||||
sub open_joblog {
|
||||
# Open joblog as specified by --joblog
|
||||
# Uses:
|
||||
# $opt::resume
|
||||
# $opt::resume_failed
|
||||
# $opt::joblog
|
||||
# $opt::results
|
||||
# $Global::job_already_run
|
||||
# %Global::fd
|
||||
my $append = 0;
|
||||
if(($opt::resume or $opt::resume_failed)
|
||||
and
|
||||
|
|
@ -1159,7 +1227,7 @@ sub find_compression_program {
|
|||
# $decompress_program = decompress program with options
|
||||
|
||||
# Search for these. Sorted by speed
|
||||
my @prg = qw(lzop pigz gzip pbzip2 plzip bzip2 lzma lzip xz);
|
||||
my @prg = qw(lzop pigz pxz gzip plzip pbzip2 lzma xz lzip bzip2);
|
||||
for my $p (@prg) {
|
||||
if(which($p)) {
|
||||
return ("$p -c -1","$p -dc");
|
||||
|
|
@ -1172,8 +1240,17 @@ sub find_compression_program {
|
|||
|
||||
sub read_options {
|
||||
# Read options from command line, profile and $PARALLEL
|
||||
# Uses:
|
||||
# $opt::shebang_wrap
|
||||
# $opt::shebang
|
||||
# @ARGV
|
||||
# $opt::plain
|
||||
# @opt::profile
|
||||
# $ENV{'HOME'}
|
||||
# $ENV{'PARALLEL'}
|
||||
# Returns:
|
||||
# @ARGV_no_opt = @ARGV without --options
|
||||
|
||||
# This must be done first as this may exec myself
|
||||
if(defined $ARGV[0] and ($ARGV[0] =~ /^--shebang/ or
|
||||
$ARGV[0] =~ /^--shebang-?wrap/ or
|
||||
|
|
@ -1281,6 +1358,12 @@ sub read_args_from_command_line {
|
|||
# - puts arguments into files and add the files to -a
|
||||
# Input:
|
||||
# @::ARGV = command option ::: arg arg arg :::: argfiles
|
||||
# Uses:
|
||||
# $Global::arg_sep
|
||||
# $Global::arg_file_sep
|
||||
# $opt::internal_pipe_means_argfiles
|
||||
# $opt::pipe
|
||||
# @opt::a
|
||||
# Returns:
|
||||
# @argv_no_argsep = @::ARGV without ::: and :::: and following args
|
||||
my @new_argv = ();
|
||||
|
|
@ -1345,6 +1428,10 @@ sub cleanup {
|
|||
sub __QUOTING_ARGUMENTS_FOR_SHELL__ {}
|
||||
|
||||
sub shell_quote {
|
||||
# Input:
|
||||
# @strings = strings to be quoted
|
||||
# Output:
|
||||
# @shell_quoted_strings = string quoted with \ as needed by the shell
|
||||
my @strings = (@_);
|
||||
for my $a (@strings) {
|
||||
$a =~ s/([\002-\011\013-\032\\\#\?\`\(\)\{\}\[\]\*\>\<\~\|\; \"\!\$\&\'\202-\377])/\\$1/g;
|
||||
|
|
@ -1401,34 +1488,6 @@ sub shell_quote_file {
|
|||
return $a;
|
||||
}
|
||||
|
||||
sub _maybe_quote {
|
||||
# If $Global::quoting is set then quote the string so shell will not expand any special chars
|
||||
# Else do not quote
|
||||
# Inputs:
|
||||
# $string = string to be quoted
|
||||
# Returns:
|
||||
# $maybe_quoted_string = $string quoted if needed
|
||||
if($Global::quoting) {
|
||||
return shell_quote_scalar(@_);
|
||||
} else {
|
||||
return "@_";
|
||||
}
|
||||
}
|
||||
|
||||
sub _maybe_unquote {
|
||||
# If $Global::quoting then unquote the string as shell would
|
||||
# Else do not unquote
|
||||
# Inputs:
|
||||
# $maybe_quoted_string = string to be maybe unquoted
|
||||
# Returns:
|
||||
# $string = $maybe_quoted_string unquoted if needed
|
||||
if($Global::quoting) {
|
||||
return shell_unquote(@_);
|
||||
} else {
|
||||
return "@_";
|
||||
}
|
||||
}
|
||||
|
||||
sub _shellwords {
|
||||
# '"'"'\""'"' foo\ bar\" '\" '\ quux => (q("'""), 'foo bar"', '\" quux');
|
||||
my $s = shift;
|
||||
|
|
@ -1490,33 +1549,14 @@ sub _shellwords {
|
|||
}
|
||||
|
||||
sub shellwords {
|
||||
# Input:
|
||||
# $string = shell line
|
||||
# Returns:
|
||||
# @shell_words = $string split into words as shell would do
|
||||
$Global::use{"Text::ParseWords"} ||= eval "use Text::ParseWords; 1;";
|
||||
return Text::ParseWords::shellwords(@_);
|
||||
}
|
||||
|
||||
sub _shell_unquote {
|
||||
# Unquote strings from shell_quote
|
||||
# Inputs:
|
||||
# @strings = strings to be unquoted
|
||||
# Returns:
|
||||
# @unquoted_strings = @strings with shell quoting removed
|
||||
my @strings = (@_);
|
||||
my $arg;
|
||||
for my $arg (@strings) {
|
||||
if(not defined $arg) {
|
||||
$arg = "";
|
||||
}
|
||||
# filenames with '\n' is quoted using \'\n\'
|
||||
$arg =~ s/'\n'/\n/g;
|
||||
# Non-printables
|
||||
$arg =~ s/\\([\002-\011\013-\032])/$1/g;
|
||||
# Shell special chars
|
||||
$arg =~ s/\\([\#\?\`\(\)\{\}\*\>\<\~\|\; \"\!\$\&\'])/$1/g;
|
||||
# Backslash
|
||||
$arg =~ s/\\\\/\\/g;
|
||||
}
|
||||
return wantarray ? @strings : "@strings";
|
||||
}
|
||||
|
||||
sub __FILEHANDLES__ {}
|
||||
|
||||
|
|
@ -1524,6 +1564,10 @@ sub __FILEHANDLES__ {}
|
|||
sub save_stdin_stdout_stderr {
|
||||
# Remember the original STDIN, STDOUT and STDERR
|
||||
# and file descriptors opened by the shell (e.g. 3>/tmp/foo)
|
||||
# Uses:
|
||||
# %Global::fd
|
||||
# $Global::original_stderr
|
||||
# $Global::original_stdin
|
||||
# Returns: N/A
|
||||
|
||||
# Find file descriptors that are already opened (by the shell)
|
||||
|
|
@ -1543,6 +1587,9 @@ sub save_stdin_stdout_stderr {
|
|||
sub enough_file_handles {
|
||||
# Check that we have enough filehandles available for starting
|
||||
# another job
|
||||
# Uses:
|
||||
# $Global::grouped
|
||||
# %Global::fd
|
||||
# Returns:
|
||||
# 1 if ungrouped (thus not needing extra filehandles)
|
||||
# 0 if too few filehandles
|
||||
|
|
@ -1569,6 +1616,9 @@ sub open_or_exit {
|
|||
# Open a file name or exit if the file cannot be opened
|
||||
# Inputs:
|
||||
# $file = filehandle or filename to open
|
||||
# Uses:
|
||||
# $Global::stdin_in_opt_a
|
||||
# $Global::original_stdin
|
||||
# Returns:
|
||||
# $fh = file handle to read-opened file
|
||||
my $file = shift;
|
||||
|
|
@ -1618,6 +1668,19 @@ sub start_more_jobs {
|
|||
# * not load on server is too high
|
||||
# * not server swapping
|
||||
# * not too short time since last remote login
|
||||
# Uses:
|
||||
# $Global::max_procs_file
|
||||
# $Global::max_procs_file_last_mod
|
||||
# %Global::host
|
||||
# @opt::sshloginfile
|
||||
# $Global::start_no_new_jobs
|
||||
# $opt::filter_hosts
|
||||
# $Global::JobQueue
|
||||
# $opt::pipe
|
||||
# $opt::load
|
||||
# $opt::noswap
|
||||
# $opt::delay
|
||||
# $Global::newest_starttime
|
||||
# Returns:
|
||||
# $jobs_started = number of jobs started
|
||||
my $jobs_started = 0;
|
||||
|
|
@ -1716,6 +1779,9 @@ sub start_more_jobs {
|
|||
}
|
||||
}
|
||||
|
||||
{
|
||||
my $no_more_file_handles_warned;
|
||||
|
||||
sub start_another_job {
|
||||
# If there are enough filehandles
|
||||
# and JobQueue not empty
|
||||
|
|
@ -1725,6 +1791,12 @@ sub start_another_job {
|
|||
# mark it as virgin_job
|
||||
# Inputs:
|
||||
# $sshlogin = the SSHLogin to start the job on
|
||||
# Uses:
|
||||
# $Global::JobQueue
|
||||
# $opt::pipe
|
||||
# $opt::results
|
||||
# $opt::resume
|
||||
# @Global::virgin_jobs
|
||||
# Returns:
|
||||
# 1 if another jobs was started
|
||||
# 0 otherwise
|
||||
|
|
@ -1780,14 +1852,17 @@ sub start_another_job {
|
|||
}
|
||||
} else {
|
||||
# No more file handles
|
||||
$Global::no_more_file_handles_warned++ or
|
||||
$no_more_file_handles_warned++ or
|
||||
::warning("No more file handles. ",
|
||||
"Raising ulimit -n or /etc/security/limits.conf may help.\n");
|
||||
return 0;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
sub init_progress {
|
||||
# Uses:
|
||||
# $opt::bar
|
||||
# Returns:
|
||||
# list of computers for progress output
|
||||
$|=1;
|
||||
|
|
@ -1800,6 +1875,15 @@ sub init_progress {
|
|||
}
|
||||
|
||||
sub drain_job_queue {
|
||||
# Uses:
|
||||
# $opt::progress
|
||||
# $Global::original_stderr
|
||||
# $Global::total_running
|
||||
# $Global::max_jobs_running
|
||||
# %Global::running
|
||||
# $Global::JobQueue
|
||||
# %Global::host
|
||||
# $Global::start_no_new_jobs
|
||||
# Returns: N/A
|
||||
if($opt::progress) {
|
||||
print $Global::original_stderr init_progress();
|
||||
|
|
@ -1864,6 +1948,9 @@ sub drain_job_queue {
|
|||
|
||||
sub toggle_progress {
|
||||
# Turn on/off progress view
|
||||
# Uses:
|
||||
# $opt::progress
|
||||
# $Global::original_stderr
|
||||
# Returns: N/A
|
||||
$opt::progress = not $opt::progress;
|
||||
if($opt::progress) {
|
||||
|
|
@ -1872,6 +1959,11 @@ sub toggle_progress {
|
|||
}
|
||||
|
||||
sub progress {
|
||||
# Uses:
|
||||
# $opt::bar
|
||||
# $opt::eta
|
||||
# %Global::host
|
||||
# $Global::total_started
|
||||
# Returns:
|
||||
# $workerlist = list of workers
|
||||
# $header = that will fit on the screen
|
||||
|
|
@ -2731,6 +2823,8 @@ sub usage {
|
|||
"",
|
||||
"O. Tange (2011): GNU Parallel - The Command-Line Power Tool,",
|
||||
";login: The USENIX Magazine, February 2011:42-47.",
|
||||
"",
|
||||
"Alternatively you can get GNU Parallel without this requirement by paying 10000 EUR.",
|
||||
"");
|
||||
}
|
||||
|
||||
|
|
@ -2756,6 +2850,7 @@ sub citation_notice {
|
|||
" ;login: The USENIX Magazine, February 2011:42-47.\n",
|
||||
"\n",
|
||||
"This helps funding further development; and it won't cost you a cent.\n",
|
||||
"Alternatively you can get GNU Parallel without this requirement by paying 10000 EUR.\n",
|
||||
"\n",
|
||||
"To silence this citation notice run 'parallel --bibtex' once or use '--no-notice'.\n\n",
|
||||
);
|
||||
|
|
@ -2810,6 +2905,7 @@ sub version {
|
|||
"When using programs that use GNU Parallel to process data for publication please cite:\n",
|
||||
"O. Tange (2011): GNU Parallel - The Command-Line Power Tool, ",
|
||||
";login: The USENIX Magazine, February 2011:42-47.\n",
|
||||
"Alternatively you can get GNU Parallel without this requirement by paying 10000 EUR.\n",
|
||||
);
|
||||
}
|
||||
|
||||
|
|
@ -2837,6 +2933,8 @@ sub bibtex {
|
|||
"(Feel free to use \\nocite{Tange2011a})",
|
||||
"",
|
||||
"This helps funding further development.",
|
||||
"",
|
||||
"Alternatively you can get GNU Parallel without this requirement by paying 10000 EUR.",
|
||||
""
|
||||
);
|
||||
while(not -e $ENV{'HOME'}."/.parallel/will-cite") {
|
||||
|
|
@ -7643,5 +7741,5 @@ sub mkdir_or_die {
|
|||
}
|
||||
|
||||
# Keep perl -w happy
|
||||
$opt::x = $Semaphore::timeout = $Semaphore::wait = $Global::no_more_file_handles_warned =
|
||||
$opt::x = $Semaphore::timeout = $Semaphore::wait =
|
||||
$Job::file_descriptor_warning_printed = $Global::max_slot_number = 0;
|
||||
|
|
|
|||
|
|
@ -2165,6 +2165,11 @@ B<$(date -d "today -{1} days" +%Y%m%d)> will give the dates in
|
|||
YYYYMMDD with {1} days subtracted.
|
||||
|
||||
|
||||
=head1 EXAMPLE: Copy files as last modified date (ISO8601) with added random digits
|
||||
|
||||
B<find . | parallel 'cp {} ../destdir/{= $a = int(10000*rand); $_ = `date -r "$_" +%FT%T"$a"`; chomp; =}'>
|
||||
|
||||
|
||||
=head1 EXAMPLE: Digtal clock with "blinking" :
|
||||
|
||||
The : in a digital clock blinks. To make every other line have a ':'
|
||||
|
|
@ -2173,6 +2178,7 @@ source. If the value modudo 2 is 1: Use ":" otherwise use " ":
|
|||
|
||||
B<parallel -k echo {1}'{=3 $_=$_%2?":":" "=}'{2}{3} ::: {0..12} ::: {0..5} ::: {0..9}>
|
||||
|
||||
|
||||
=head1 EXAMPLE: Aggregating content of files
|
||||
|
||||
This:
|
||||
|
|
@ -2520,7 +2526,8 @@ If the CPU is the limiting factor parallelization should be done on the regexps:
|
|||
|
||||
cat regexp.txt | parallel --pipe -L1000 --round-robin grep -f - bigfile
|
||||
|
||||
This will start one grep per CPU and read bigfile one time per CPU,
|
||||
If a line matches multiple regexps, the line may be duplicated. The command
|
||||
will start one grep per CPU and read bigfile one time per CPU,
|
||||
but as that is done in parallel, all reads except the first will be
|
||||
cached in RAM. Depending on the size of regexp.txt it may be faster to
|
||||
use --block 10m instead of -L1000. If regexp.txt is too big to fit in
|
||||
|
|
@ -2531,7 +2538,7 @@ Some storage systems perform better when reading multiple chunks in
|
|||
parallel. This is true for some RAID systems and for some network file
|
||||
systems. To parallelize the reading of bigfile:
|
||||
|
||||
parallel --pipepart --block 100M -a bigfile grep -f regexp.txt
|
||||
parallel --pipepart --block 100M -a bigfile -k grep -f regexp.txt
|
||||
|
||||
This will split bigfile into 100MB chunks and run grep on each of
|
||||
these chunks. To parallelize both reading of bigfile and regexp.txt
|
||||
|
|
@ -2540,6 +2547,8 @@ combine the two using --fifo:
|
|||
parallel --pipepart --block 100M -a bigfile --fifo cat regexp.txt \
|
||||
\| parallel --pipe -L1000 --round-robin grep -f - {}
|
||||
|
||||
If a line matches multiple regexps, the line may be duplicated.
|
||||
|
||||
|
||||
=head1 EXAMPLE: Using remote computers
|
||||
|
||||
|
|
@ -4149,6 +4158,9 @@ When using GNU B<parallel> for a publication please cite:
|
|||
O. Tange (2011): GNU Parallel - The Command-Line Power Tool, ;login:
|
||||
The USENIX Magazine, February 2011:42-47.
|
||||
|
||||
Alternatively you can get GNU Parallel without this requirement by
|
||||
paying 10000 EUR.
|
||||
|
||||
Copyright (C) 2007-10-18 Ole Tange, http://ole.tange.dk
|
||||
|
||||
Copyright (C) 2008,2009,2010 Ole Tange, http://ole.tange.dk
|
||||
|
|
|
|||
Loading…
Reference in a new issue