mirror of
https://git.savannah.gnu.org/git/parallel.git
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Easier calc of max_command_length.
Convert Global:: to Private::. Bugfix: ETA for args given on command line.
This commit is contained in:
Ole Tange
parent
c4678b726d
commit
ff229d0bd4
187
src/parallel
187
src/parallel
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@ -671,6 +671,20 @@ To compress all html files using B<gzip> run:
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B<find . -name '*.html' | parallel gzip>
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=head1 EXAMPLE: Reading arguments from command line
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GNU B<parallel> can take the arguments from command line instead of
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stdin (standard input). To compress all html files in the current dir
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using B<gzip> run:
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B<parallel gzip ::: *.html>
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To convert *.wav to *.mp3 using LAME running one process per CPU core
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run:
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B<parallel -j+0 lame {} -o {.}.mp3 ::: *.wav>
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=head1 EXAMPLE: Inserting multiple arguments
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When moving a lot of files like this: B<mv * destdir> you will
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@ -1677,7 +1691,7 @@ if($::opt_halt_on_error) {
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sub parse_options {
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# Returns: N/A
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# Defaults:
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$Global::version = 20100707;
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$Global::version = 20100708;
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$Global::progname = 'parallel';
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$Global::debug = 0;
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$Global::verbose = 0;
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@ -1695,7 +1709,6 @@ sub parse_options {
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$Global::exitstatus = 0;
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$Global::halt_on_error_exitstatus = 0;
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$Global::total_jobs = 0;
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$Global::eta = 0;
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$Global::arg_sep = ":::";
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Getopt::Long::Configure ("bundling","require_order");
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@ -1821,8 +1834,9 @@ sub parse_options {
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my @new_argv = ();
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while(@ARGV) {
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my $arg = shift @ARGV;
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if($arg =~ /^$Global::arg_sep$/o) {
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if($arg eq $Global::arg_sep) {
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unget_arg(@ARGV);
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$Global::total_jobs += @ARGV;
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@ARGV=();
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} else {
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push @new_argv, $arg;
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@ -1880,7 +1894,6 @@ sub parse_options {
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$Global::default_simultaneous_sshlogins;
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}
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}
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$Global::job_end_sequence=1;
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}
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sub cleanup {
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@ -2126,25 +2139,23 @@ sub max_length_of_command_line {
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# Find the max_length of a command line
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# Returns:
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# number of chars on the longest command line allowed
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# First find an upper bound
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if(not $Global::command_line_max_len) {
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$Global::command_line_max_len = limited_max_length();
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if(not $Private::command_line_max_len) {
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$Private::command_line_max_len = limited_max_length();
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if($::opt_s) {
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if($::opt_s <= $Global::command_line_max_len) {
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$Global::command_line_max_len = $::opt_s;
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if($::opt_s <= $Private::command_line_max_len) {
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$Private::command_line_max_len = $::opt_s;
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} else {
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print STDERR "$Global::progname: ",
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"value for -s option should be < $Global::command_line_max_len\n";
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"value for -s option should be < $Private::command_line_max_len\n";
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}
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}
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}
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return $Global::command_line_max_len;
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return $Private::command_line_max_len;
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}
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sub limited_max_length {
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sub max_length_limited_by_opt_s {
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# Returns:
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# min(opt_s, number of chars on the longest command line allowed)
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if($::opt_s) {
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if(is_acceptable_command_line_length($::opt_s)) {
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debug("-s is OK: $::opt_s\n");
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return $::opt_s;
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@ -2153,48 +2164,26 @@ sub limited_max_length {
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return binary_find_max_length(0,$::opt_s);
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}
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#TODO
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# Running is_acceptable_command_line_length is expensive
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# Try to run as few times as possible.
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# If all arguments fit on the line now, don't try a longer length
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my ($quoted_args,$quoted_args_no_ext);
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my $more = more_arguments();
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my $len = 8;
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my $is_acceptable;
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do {
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$len *= 16;
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$is_acceptable = is_acceptable_command_line_length($len);
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($quoted_args,$quoted_args_no_ext) =
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get_multiple_args($Global::command,$len,1);
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$more = more_arguments();
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debug("Test len: $len\n");
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# Reset the getting of args
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my $next = get_next_arg();
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if($next) {
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push @$quoted_args, $next;
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}
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if (@$quoted_args) {
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unget_arg(@$quoted_args);
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}
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} while ($more and $is_acceptable);
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sub limited_max_length {
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# Returns:
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# min(opt_s, number of chars on the longest command line allowed)
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if($::opt_s) { return max_length_limited_by_opt_s() }
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if(not $is_acceptable) {
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# There are more arguments than will fit on one line
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# Then search for the actual max length between 0 and upper bound
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return binary_find_max_length(int(($len)/16),$len);
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} else {
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# The arguments will fit on one line of length $len
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return $len;
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}
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return real_max_length();
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}
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sub real_max_length {
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# Returns:
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# The maximal command line length
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# Use an upper bound of 8 MB if the shell allows for for infinite long lengths
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my $upper = 8_000_000;
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my $len = 8;
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do {
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if($len > $upper) { return $len };
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$len *= 16;
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} while (is_acceptable_command_line_length($len));
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# Then search for the actual max length between 0 and upper bound
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return binary_find_max_length(int(($len)/16),$len);
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return binary_find_max_length(int($len/16),$len);
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}
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sub binary_find_max_length {
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@ -2218,8 +2207,9 @@ sub is_acceptable_command_line_length {
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# 0 if the command line length is too long
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# 1 otherwise
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my $len = shift;
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$Global::is_acceptable_command_line_length++;
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debug("$Global::is_acceptable_command_line_length $len\n");
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$Private::is_acceptable_command_line_length++;
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debug("$Private::is_acceptable_command_line_length $len\n");
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local *STDERR;
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open (STDERR,">/dev/null");
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system "true "."x"x$len;
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@ -2484,7 +2474,7 @@ sub no_of_processing_units_sshlogin {
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sub no_of_cpus {
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# Returns:
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# Number of physical CPUs
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if(not $Global::no_of_cpus) {
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if(not $Private::no_of_cpus) {
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local $/="\n"; # If delimiter is set, then $/ will be wrong
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my $no_of_cpus = (no_of_cpus_freebsd()
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|| no_of_cpus_darwin()
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@ -2492,19 +2482,19 @@ sub no_of_cpus {
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|| no_of_cpus_gnu_linux()
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);
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if($no_of_cpus) {
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$Global::no_of_cpus = $no_of_cpus;
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$Private::no_of_cpus = $no_of_cpus;
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} else {
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warn("Cannot figure out number of cpus. Using 1");
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$Global::no_of_cpus = 1;
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$Private::no_of_cpus = 1;
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}
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}
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return $Global::no_of_cpus;
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return $Private::no_of_cpus;
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}
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sub no_of_cores {
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# Returns:
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# Number of CPU cores
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if(not $Global::no_of_cores) {
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if(not $Private::no_of_cores) {
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local $/="\n"; # If delimiter is set, then $/ will be wrong
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my $no_of_cores = (no_of_cores_freebsd()
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|| no_of_cores_darwin()
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@ -2512,13 +2502,13 @@ sub no_of_cores {
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|| no_of_cores_gnu_linux()
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);
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if($no_of_cores) {
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$Global::no_of_cores = $no_of_cores;
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$Private::no_of_cores = $no_of_cores;
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} else {
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warn("Cannot figure out number of CPU cores. Using 1");
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$Global::no_of_cores = 1;
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$Private::no_of_cores = 1;
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}
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}
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return $Global::no_of_cores;
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return $Private::no_of_cores;
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}
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sub no_of_cpus_gnu_linux {
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@ -2633,6 +2623,17 @@ sub min {
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return $min;
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}
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sub max {
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# Returns:
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# Maximum value of array
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my $max = shift;
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my @args = @_;
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for my $a (@args) {
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$max = ($max > $a) ? $max : $a;
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}
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return $max;
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}
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#
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# Running and printing the jobs
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@ -2851,13 +2852,13 @@ sub progress {
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my $completed = 0;
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for(@workers) { $completed += ($Global::host{$_}{'completed'}||0) }
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if($completed) {
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$Global::first_completed ||= time;
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my $avgtime = (time-$Global::first_completed)/$completed;
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$Private::first_completed ||= time;
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my $avgtime = (time-$Private::first_completed)/$completed;
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my $this_eta = ($Global::total_jobs - $completed) * $avgtime;
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$Global::eta ||= $this_eta;
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$Private::eta ||= $this_eta;
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# Smooth the eta so it does not jump wildly
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$Global::eta = 0.9 * $Global::eta + 0.1 * $this_eta;
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$eta = sprintf("ETA: %ds ", $Global::eta);
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$Private::eta = 0.9 * $Private::eta + 0.1 * $this_eta;
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$eta = sprintf("ETA: %ds ", $Private::eta);
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}
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}
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@ -2974,15 +2975,15 @@ sub columns {
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# Get the number of columns of the display
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# Returns:
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# number of columns of the screen
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if(not $Global::columns) {
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$Global::columns = $ENV{'COLUMNS'};
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if(not $Global::columns) {
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if(not $Private::columns) {
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$Private::columns = $ENV{'COLUMNS'};
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if(not $Private::columns) {
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my $resize = qx{ resize 2>/dev/null };
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$resize =~ /COLUMNS=(\d+);/ and do { $Global::columns = $1; };
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$resize =~ /COLUMNS=(\d+);/ and do { $Private::columns = $1; };
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}
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$Global::columns ||= 80;
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$Private::columns ||= 80;
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}
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return $Global::columns;
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return $Private::columns;
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}
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sub start_more_jobs {
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@ -3051,12 +3052,11 @@ sub start_job {
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my ($pid,$out,$err,%out,%err,$outname,$errname,$name);
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if($Global::grouped) {
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# To group we create temporary files for STDOUT and STDERR
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# Filehandles are global, so to not overwrite the filehandles use a hash with new keys
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# To avoid the cleanup unlink the files immediately (but keep them open)
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$outname = ++$Global::TmpFilename;
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$outname = ++$Private::TmpFilename;
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($out{$outname},$name) = tempfile(SUFFIX => ".par");
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unlink $name;
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$errname = ++$Global::TmpFilename;
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$errname = ++$Private::TmpFilename;
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($err{$errname},$name) = tempfile(SUFFIX => ".par");
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unlink $name;
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@ -3089,9 +3089,9 @@ sub start_job {
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$Global::total_started++;
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debug("$Global::total_running processes. Starting: $command\n");
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#print STDERR "LEN".length($command)."\n";
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$Global::job_start_sequence++;
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$Private::job_start_sequence++;
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if($::opt_a and $Global::job_start_sequence == 1) {
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if($::opt_a and $Private::job_start_sequence == 1) {
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# Give STDIN to the first job if using -a
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$pid = open3("<&STDIN", ">&STDOUT", ">&STDERR", $command) ||
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die("open3 failed. Report a bug to <bug-parallel\@gnu.org>\n");
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@ -3109,14 +3109,14 @@ sub start_job {
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or die "Can't dup \$Global::original_stderr: $!";
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if($Global::grouped) {
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return ("seq" => $Global::job_start_sequence,
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return ("seq" => $Private::job_start_sequence,
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"pid" => $pid,
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"out" => $out{$outname},
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"err" => $err{$errname},
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"sshlogin" => $sshlogin,
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"command" => $command);
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} else {
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return ("seq" => $Global::job_start_sequence,
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return ("seq" => $Private::job_start_sequence,
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"pid" => $pid,
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"sshlogin" => $sshlogin,
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"command" => $command);
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@ -3244,7 +3244,9 @@ sub sshcommand_of_sshlogin {
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$serverlogin = $sshlogin;
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#my $master = "ssh -MTS ".control_path_dir()."/ssh-%r@%h:%p ".$serverlogin;
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my $master = "ssh -MTS ".control_path_dir()."/ssh-%r@%h:%p ".$serverlogin." sleep 1";
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if(not $Global::control_path{$control_path}++) {
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if(not $Private::control_path{$control_path}++) {
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# Master is not running for this control_path
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# Start it
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my $pid = fork();
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if($pid) {
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$Global::sshmaster{$pid}++;
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@ -3264,10 +3266,10 @@ sub sshcommand_of_sshlogin {
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sub control_path_dir {
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# Returns:
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# path to directory
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if(not $Global::control_path_dir) {
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$Global::control_path_dir = tempdir("/tmp/parallel-ssh-XXXX", CLEANUP => 1 );
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if(not $Private::control_path_dir) {
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$Private::control_path_dir = tempdir("/tmp/parallel-ssh-XXXX", CLEANUP => 1 );
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}
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return $Global::control_path_dir;
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return $Private::control_path_dir;
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}
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sub sshtransfer {
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@ -3426,9 +3428,9 @@ sub reaper {
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# Start another job
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# Returns: N/A
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do_not_reap();
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$Global::reaperlevel++;
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$Private::reaperlevel++;
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my $stiff;
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debug("Reaper called $Global::reaperlevel\n");
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debug("Reaper called $Private::reaperlevel\n");
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while (($stiff = waitpid(-1, &WNOHANG)) > 0) {
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if($Global::sshmaster{$stiff}) {
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# This is one of the ssh -M: ignore
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@ -3444,11 +3446,12 @@ sub reaper {
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if($Global::keeporder and not $print_now) {
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$Global::print_later{$Global::running{$stiff}{"seq"}} =
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$Global::running{$stiff};
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while($Global::print_later{$Global::job_end_sequence}) {
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debug("Found job end $Global::job_end_sequence");
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print_job($Global::print_later{$Global::job_end_sequence});
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delete $Global::print_later{$Global::job_end_sequence};
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$Global::job_end_sequence++;
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$Private::job_end_sequence ||= 1;
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while($Global::print_later{$Private::job_end_sequence}) {
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debug("Found job end $Private::job_end_sequence");
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print_job($Global::print_later{$Private::job_end_sequence});
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delete $Global::print_later{$Private::job_end_sequence};
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$Private::job_end_sequence++;
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}
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} else {
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print_job ($Global::running{$stiff});
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@ -3482,8 +3485,8 @@ sub reaper {
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start_more_jobs();
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}
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reap_if_needed();
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debug("Reaper exit $Global::reaperlevel\n");
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$Global::reaperlevel--;
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debug("Reaper exit $Private::reaperlevel\n");
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$Private::reaperlevel--;
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}
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#
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@ -3604,12 +3607,4 @@ sub my_dump {
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}
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# Keep perl -w happy
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$main::opt_u = $main::opt_e = $main::opt_c = $main::opt_f =
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$main::opt_q = $main::opt_0 = $main::opt_s = $main::opt_v =
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$main::opt_g = $main::opt_P = $main::opt_D = $main::opt_m =
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$main::opt_X = $main::opt_x = $main::opt_k = $main::opt_d =
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$main::opt_P = $main::opt_i = $main::opt_p = $main::opt_a =
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$main::opt_version = $main::opt_L = $main::opt_l =
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$main::opt_show_limits = $main::opt_n = $main::opt_e = $main::opt_verbose =
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$main::opt_E = $main::opt_r = $Global::xargs = $Global::keeporder =
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$Global::control_path = 0;
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$Private::control_path = 0;
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|
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@ -30,3 +30,13 @@ b
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echo a
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a
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cat
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### Bug made 4 5 go before 1 2 3
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1
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2
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3
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4
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5
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### Bug made 3 go before 1 2
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1
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2
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3
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|
|
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@ -12,3 +12,8 @@ echo via first cat |parallel -kv cat ::: - -
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echo via cat |parallel --arg-sep .--- -kv .--- 'cat' 'echo b'
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echo via cat |parallel -kv ::: 'cat' 'echo b'
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echo no output |parallel -kv ::: 'echo a' 'cat'
|
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echo '### Bug made 4 5 go before 1 2 3'
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parallel -k ::: "sleep 1; echo 1" "echo 2" "echo 3" "echo 4" "echo 5"
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||||
echo '### Bug made 3 go before 1 2'
|
||||
parallel -kj 1 ::: "sleep 1; echo 1" "echo 2" "echo 3"
|
||||
|
|
|
|||
|
|
@ -63,8 +63,8 @@ rm -- 中国\ \(Zhōngguó\)/abc-中国\ \(Zhōngguó\)-中国\ \(Zhōngguó\)
|
|||
a1.gif 2.gif 3.gif 4.gif 5.gif 6.gifb1 2 3 4 5 6c1 2 3 4 5 6
|
||||
a1.gifb1c1 a2.gifb2c2 a3.gifb3c3 a4.gifb4c4 a5.gifb5c5 a6.gifb6c6
|
||||
### Test -m with 60000 args
|
||||
98c94dcab1efedab3f820935d230bc77 -
|
||||
12 180011 1286837
|
||||
cded9cd15e00550b08e57afc0172caa8 -
|
||||
12 180000 1286718
|
||||
### Test -X with 60000 args
|
||||
12de4813eda45d364a51bef697eee299 -
|
||||
13 120000 1586682
|
||||
|
|
@ -79,15 +79,15 @@ a1.gifb1c1 abc a2.gifb2c2 abc a3.gifb3c3 abc a4.gifb4c4 abc a5.gifb5c5 abc
|
|||
a6.gifb6c6 abc a7.gifb7c7 abc a8.gifb8c8 abc a9.gifb9c9 abc a10.gifb10c10
|
||||
abc a11.gifb11c11 abc a12.gifb12c12 abc a13.gifb13c13 abc a14.gifb14c14
|
||||
abc a15.gifb15c15 abc
|
||||
a1.gif 2.gif 3.gif 4.gif 5.gif b1 2 3 4 5 6c1 2 3 4 5 6
|
||||
a6.gif 7.gif 8.gif 9.gif 10.gif b6 7 8 9 10 11c6 7 8 9 10 11
|
||||
a11.gif 12.gif 13.gif 14.gif b11 12 13 14 15c11 12 13 14 15
|
||||
a1.gif 2.gif 3.gif 4.gif 5.gif b1 2 3 4 5 c1 2 3 4 5
|
||||
a6.gif 7.gif 8.gif 9.gif 10.gif b6 7 8 9 10 c6 7 8 9 10
|
||||
a11.gif 12.gif 13.gif 14.gif b11 12 13 14 c11 12 13 14
|
||||
a15.gif b15 c15
|
||||
a1.gifb1c1 a2.gifb2c2 a3.gifb3c3 a4.gifb4c4 a5.gifb5c5 a6.gifb6c6
|
||||
a7.gifb7c7 a8.gifb8c8 a9.gifb9c9 a10.gifb10c10 a11.gifb11c11 a12.gifb12c12
|
||||
a13.gifb13c13 a14.gifb14c14 a15.gifb15c15
|
||||
a1.gif 2.gif 3.gif 4.gif 5.gif 6.gif 7.gifb1 2 3 4 5 6 7 8c1 2 3 4 5 6 7 8
|
||||
a8.gif 9.gif 10.gif 11.gif 12.gif 13.gifb8 9 10 11 12 13 14c8 9 10 11 12 13 14
|
||||
a1.gif 2.gif 3.gif 4.gif 5.gif 6.gif 7.gifb1 2 3 4 5 6 7c1 2 3 4 5 6 7
|
||||
a8.gif 9.gif 10.gif 11.gif 12.gif 13.gifb8 9 10 11 12 13c8 9 10 11 12 13
|
||||
a14.gif 15.gifb14 15c14 15
|
||||
### Test -I with shell meta chars
|
||||
9
|
||||
|
|
|
|||
|
|
@ -30,3 +30,13 @@ b
|
|||
echo a
|
||||
a
|
||||
cat
|
||||
### Bug made 4 5 go before 1 2 3
|
||||
1
|
||||
2
|
||||
3
|
||||
4
|
||||
5
|
||||
### Bug made 3 go before 1 2
|
||||
1
|
||||
2
|
||||
3
|
||||
|
|
|
|||
Loading…
Reference in a new issue