/usr/bin/parkill is in mpich 3.2-7+b1.
This file is owned by root:root, with mode 0o755.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 | #! /usr/bin/perl
# -*- Mode: perl; -*-
#
# Kill all processes running a specified command
#
# Many systems also have the "killall" command; this should be used instead
# if it is available.
#
# This script relies on the ps command; where possible, it uses the
# /proc/<pid>/cmdline interface to more reliably access the commandline
# (to avoid matching command line parameters as if they were functions).
#
$user = $ENV{'LOGNAME'};
$progname = "";
$noaddresses = 1;
$debug = 0;
$verbose = 0;
$testing = 0;
foreach $_ (@ARGV) {
if (/-debug/) {
$debug = 1;
}
elsif (/-verbose/) {
$verbose = 1;
}
elsif (/-user=(.*)/) {
$user = $1;
}
elsif (/-help/ || /-usage/) {
print STDOUT "$0 [ -debug ] [ -verbose ] [ -user=name ] program\n";
print STDOUT "Kill all processes running \"program\". To use the -user option
you must have superuser privilege.\n";
exit(1);
}
$progname = $_;
}
if ( $progname eq "" ) {
print STDERR "You must specify a program name\n";
exit(1);
}
print "user is $user\n" if $debug;
#
# Get pids
$remoteps = "ps";
$sysname=`uname -s`;
chop $sysname;
# Try to get nicer behavior from GNU ps.
$ENV{'COLUMNS'} = 200;
$ENV{'PS_PERSONALITY'} = "linux";
if ($sysname eq "Linux") {
print "linux style ps\n" if $debug;
# The -width option can cause trouble, even with GNU ps, if the ps
# program either doesn't support it or
#$psopts = "-width 200 -lfu"; # LINUX
$psopts = "-lfu"; # LINUX
$pidloc = 3; # 4 sometimes?
}
elsif ($sysname eq "SunOS" || $sysname eq "IRIX64") {
print "solaris style ps\n" if $debug;
$psopts = "-fu"; # Solaris
$pidloc = 2;
}
elsif ($sysname eq "OSF1" ) {
$psopts = "-fu";
$pidloc = 1;
}
elsif ($sysname eq "Darwin") {
$psopts = "-aux -U";
$pidloc = 1;
}
else {
print STDERR "Unsupported system \"$sysname\"\n";
exit(1);
}
open( FD, "$remoteps $psopts $user |" ) || die "Cannot execute ps\n";
while (<FD>) {
print $_ if $verbose;
# Skip lines that may match this command
if (/tcsh/) { next; }
if (/grep/) { next; }
if (/perl/) { next; }
if (/\/bin\/sh /) { next; }
if ($progname ne "mpiexec" && /mpiexec/) { next; }
print $_ if $debug;
my @items = split(/\s+/);
my $pid = $items[$pidloc];
print "PID for this job is $pid\n" if $debug;
my $procfile = "/proc/$pid/cmdline";
print "Looking for $procfile\n" if $debug;
# We *CANNOT USE* -s with a file in /proc because -s filename returns
# false alwyas ! (BUG BUG BUG). Instead, we try to open and read from it
$rc = open PFD, "<$procfile";
if ($rc) {
my $cmdline = <PFD>;
$cmdline =~ s/\r?\n//;
print "Cmdline in /proc/$pid is $cmdline\n" if $debug;
if ($cmdline =~ /^$progname/ || $cmdline =~ /^\.\/$progname/) {
print "Found $progname in /proc/$pid/cmdline\n" if $debug;
$pids[$#pids+1] = @items[$pidloc];
}
close PFD;
}
else {
# Just try to match the commandline to the entire ps output.
if (/$progname/) {
$pids[$#pids+1] = @items[$pidloc];
}
}
}
close FD;
if ($#pids >= 0) {
print "Processes to kill are " . join(',',@pids) . "\n" if $debug;
if ($testing) { exit 0; }
foreach my $sig ("INT","QUIT","KILL") {
my $cnt = kill $sig, @pids;
print "Signaled (SIG$sig) $cnt processes\n" if ($debug || $verbose);
}
}
else {
print "No processes matched $progname for user $user\n" if $verbose;
}
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