parallel: Calculate #CPU as either #threads, #cores, or #sockets.

src/parallel.pod

@@ -975,7 +975,7 @@ See also B<--resume> B<--resume-failed>.
 
 Number of jobslots on each machine. Run up to N jobs in parallel.  0
 means as many as possible. Default is 100% which will run one job per
-CPU core on each machine.
+CPU on each machine.
 
 If B<--semaphore> is set, the default is 1 thus making a mutex.
 
@@ -988,8 +988,9 @@ If B<--semaphore> is set, the default is 1 thus making a mutex.
 
 =item B<-P> I<+N>
 
-Add N to the number of CPU cores.  Run this many jobs in parallel.
+Add N to the number of CPUs.  Run this many jobs in parallel.  See
-See also B<--use-cpus-instead-of-cores>.
+also B<--use-cores-instead-of-threads> and
+B<--use-sockets-instead-of-threads>.
 
 
 =item B<--jobs> I<-N>
@@ -1000,9 +1001,10 @@ See also B<--use-cpus-instead-of-cores>.
 
 =item B<-P> I<-N>
 
-Subtract N from the number of CPU cores.  Run this many jobs in parallel.
+Subtract N from the number of CPUs.  Run this many jobs in parallel.
 If the evaluated number is less than 1 then 1 will be used.  See also
-B<--use-cpus-instead-of-cores>.
+B<--use-cores-instead-of-threads> and
+B<--use-sockets-instead-of-threads>.
 
 
 =item B<--jobs> I<N>%
@@ -1013,8 +1015,9 @@ B<--use-cpus-instead-of-cores>.
 
 =item B<-P> I<N>%
 
-Multiply N% with the number of CPU cores.  Run this many jobs in
+Multiply N% with the number of CPUs.  Run this many jobs in
-parallel. See also B<--use-cpus-instead-of-cores>.
+parallel. See also B<--use-cores-instead-of-threads> and
+B<--use-sockets-instead-of-threads>.
 
 
 =item B<--jobs> I<procfile>
@@ -1392,13 +1395,13 @@ inspired by bash's parameter expansion:
 =item B<--progress>
 
 Show progress of computations. List the computers involved in the task
-with number of CPU cores detected and the max number of jobs to
+with number of CPUs detected and the max number of jobs to run. After
-run. After that show progress for each computer: number of running
+that show progress for each computer: number of running jobs, number
-jobs, number of completed jobs, and percentage of all jobs done by
+of completed jobs, and percentage of all jobs done by this
-this computer. The percentage will only be available after all jobs
+computer. The percentage will only be available after all jobs have
-have been scheduled as GNU B<parallel> only read the next job when
+been scheduled as GNU B<parallel> only read the next job when ready to
-ready to schedule it - this is to avoid wasting time and memory by
+schedule it - this is to avoid wasting time and memory by reading
-reading everything at startup.
+everything at startup.
 
 By sending GNU B<parallel> SIGUSR2 you can toggle turning on/off
 B<--progress> on a running GNU B<parallel> process.
@@ -1450,16 +1453,29 @@ exit (used by GNU B<parallel> itself to determine the line length
 on remote computers).
 
 
-=item B<--number-of-cpus>
+=item B<--number-of-cpus> (obsolete)
 
-Print the number of physical CPUs and exit (used by GNU B<parallel>
+Print the number of physical CPU cores and exit.
-itself to determine the number of physical CPUs on remote computers).
 
 
-=item B<--number-of-cores>
+=item B<--number-of-cores> (alpha testing)
 
-Print the number of CPU cores and exit (used by GNU B<parallel> itself
+Print the number of physical CPU cores and exit (used by GNU B<parallel> itself
-to determine the number of CPU cores on remote computers).
+to determine the number of physical CPU cores on remote computers).
+
+
+=item B<--number-of-sockets> (alpha testing)
+
+Print the number of filled CPU sockets and exit (used by GNU
+B<parallel> itself to determine the number of filled CPU sockets on
+remote computers).
+
+
+=item B<--number-of-threads> (alpha testing)
+
+Print the number of hyperthreaded CPU cores and exit (used by GNU
+B<parallel> itself to determine the number of hyperthreaded CPU cores
+on remote computers).
 
 
 =item B<--no-keep-order>
@@ -2206,11 +2222,11 @@ I<secs> seconds after starting each ssh. I<secs> can be less than 1
 seconds.
 
 
-=item B<-S> I<[@hostgroups/][ncores/]sshlogin[,[@hostgroups/][ncores/]sshlogin[,...]]>
+=item B<-S> I<[@hostgroups/][ncpus/]sshlogin[,[@hostgroups/][ncpus/]sshlogin[,...]]>
 
 =item B<-S> I<@hostgroup>
 
-=item B<--sshlogin> I<[@hostgroups/][ncores/]sshlogin[,[@hostgroups/][ncores/]sshlogin[,...]]>
+=item B<--sshlogin> I<[@hostgroups/][ncpus/]sshlogin[,[@hostgroups/][ncpus/]sshlogin[,...]]>
 
 =item B<--sshlogin> I<@hostgroup>
 
@@ -2224,10 +2240,10 @@ will always be added to a hostgroup named the same as I<sshlogin>.
 If only the I<@hostgroup> is given, only the sshlogins in that
 hostgroup will be used. Multiple I<@hostgroup> can be given.
 
-GNU B<parallel> will determine the number of CPU cores on the remote
+GNU B<parallel> will determine the number of CPUs on the remote
 computers and run the number of jobs as specified by B<-j>.  If the
-number I<ncores> is given GNU B<parallel> will use this number for
+number I<ncpus> is given GNU B<parallel> will use this number for
-number of CPU cores on the host. Normally I<ncores> will not be
+number of CPUs on the host. Normally I<ncpus> will not be
 needed.
 
 An I<sshlogin> is of the form:
@@ -2268,24 +2284,24 @@ lines. Empty lines and lines starting with '#' are ignored. Example:
 
   server.example.com
   username@server2.example.com
-  8/my-8-core-server.example.com
+  8/my-8-cpu-server.example.com
   2/my_other_username@my-dualcore.example.net
   # This server has SSH running on port 2222
   ssh -p 2222 server.example.net
   4/ssh -p 2222 quadserver.example.net
   # Use a different ssh program
   myssh -p 2222 -l myusername hexacpu.example.net
-  # Use a different ssh program with default number of cores
+  # Use a different ssh program with default number of CPUs
   //usr/local/bin/myssh -p 2222 -l myusername hexacpu
-  # Use a different ssh program with 6 cores
+  # Use a different ssh program with 6 CPUs
   6//usr/local/bin/myssh -p 2222 -l myusername hexacpu
-  # Assume 16 cores on the local computer
+  # Assume 16 CPUs on the local computer
   16/:
   # Put server1 in hostgroup1
   @hostgroup1/server1
   # Put myusername@server2 in hostgroup1+hostgroup2
   @hostgroup1+hostgroup2/myusername@server2
-  # Force 4 cores and put 'ssh -p 2222 server3' in hostgroup1
+  # Force 4 CPUs and put 'ssh -p 2222 server3' in hostgroup1
   @hostgroup1/4/ssh -p 2222 server3
 
 When using a different ssh program the last argument must be the hostname.
@@ -2553,16 +2569,46 @@ Use the replacement string I<replace-str> instead of B<{.}> for input
 line without extension.
 
 
-=item B<--use-cpus-instead-of-cores>
+=item B<--use-sockets-instead-of-threads> (alpha testing)
 
-Count the number of physical CPUs instead of CPU cores. When computing
+=item B<--use-cores-instead-of-threads> (alpha testing)
-how many jobs to run simultaneously relative to the number of CPU cores
+
-you can ask GNU B<parallel> to instead look at the number of physical
+=item B<--use-cpus-instead-of-cores> (obsolete)
-CPUs. This will make sense for computers that have hyperthreading as
+
-two jobs running on one CPU with hyperthreading will run slower than
+Determine how GNU B<parallel> counts the number of CPUs. GNU
-two jobs running on two physical CPUs. Some multi-core CPUs can run
+B<parallel> uses this number when the number of jobslots is computed
-faster if only one thread is running per physical CPU. Most users will
+relative to the number of CPUs (e.g. 100% or +1).
-not need this option.
+
+CPUs can be counted in three different ways:
+
+=over 8
+
+=item sockets
+
+The number of filled CPU sockets (i.e. the number of physical chips).
+
+=item cores
+
+The number of physical cores (i.e. the number of physical compute
+cores).
+
+=item threads
+
+The number of hyperthreaded cores (i.e. the number of virtual
+cores - with some of them possibly being hyperthreaded)
+
+=back
+
+Normally the number of CPUs is computed as the number of CPU
+threads. With B<--use-sockets-instead-of-threads> or
+B<--use-cores-instead-of-threads> you can force it to be computed as
+the number of filled sockets or number of cores instead.
+
+Most users will not need these options.
+
+B<--use-cpus-instead-of-cores> is a (misleading) alias for
+B<--use-sockets-instead-of-threads> and is kept for backwards
+compatibility.
 
 
 =item B<-v>
@@ -2669,8 +2715,7 @@ using B<gzip> run:
 
   parallel gzip --best ::: *.html
 
-To convert *.wav to *.mp3 using LAME running one process per CPU core
+To convert *.wav to *.mp3 using LAME running one process per CPU run:
-run:
 
   parallel lame {} -o {.}.mp3 ::: *.wav
 
@@ -2725,8 +2770,8 @@ file:
 
   convert -geometry 120 foo.jpg thumb_foo.jpg
 
-This will run with number-of-cpu-cores jobs in parallel for all jpg
+This will run with number-of-cpus jobs in parallel for all jpg files
-files in a directory:
+in a directory:
 
   ls *.jpg | parallel convert -geometry 120 {} thumb_{}
 
@@ -2879,7 +2924,7 @@ Create a directory for each zip-file and unzip it in that dir:
   parallel 'mkdir {.}; cd {.}; unzip ../{}' ::: *.zip
 
 Recompress all .gz files in current directory using B<bzip2> running 1
-job per CPU core in parallel:
+job per CPU in parallel:
 
   parallel "zcat {} | bzip2 >{.}.bz2 && rm {}" ::: *.gz
 
@@ -3430,7 +3475,7 @@ GNU B<parallel> can often speed this up.
 
   find . -type f | parallel -k -j150% -n 1000 -m grep -H -n STRING {}
 
-This will run 1.5 job per core, and give 1000 arguments to B<grep>.
+This will run 1.5 job per CPU, and give 1000 arguments to B<grep>.
 
 
 =head1 EXAMPLE: Grepping n lines for m regular expressions.
@@ -3491,13 +3536,13 @@ If it still does not fit in memory you can do this:
   parallel --pipepart -a regexps.txt --block 1M grep -Ff - -n bigfile |
     sort -un | perl -pe 's/^\d+://'
 
-The 1M should be your free memory divided by the number of cores and
+The 1M should be your free memory divided by the number of CPU threads and
 divided by 200 for B<grep -F> and by 1000 for normal B<grep>. On
 GNU/Linux you can do:
 
   free=$(awk '/^((Swap)?Cached|MemFree|Buffers):/ { sum += $2 }
               END { print sum }' /proc/meminfo)
-  percpu=$((free / 200 / $(parallel --number-of-cores)))k
+  percpu=$((free / 200 / $(parallel --number-of-threads)))k
 
   parallel --pipepart -a regexps.txt --block $percpu --compress \
     grep -F -f - -n bigfile |
@@ -3607,13 +3652,13 @@ To include the local computer add the special sshlogin ':' to the list:
   server3.example.com
   :
 
-GNU B<parallel> will try to determine the number of CPU cores on each
+GNU B<parallel> will try to determine the number of CPUs on each of
-of the remote computers, and run one job per CPU core - even if the
+the remote computers, and run one job per CPU - even if the remote
-remote computers do not have the same number of CPU cores.
+computers do not have the same number of CPUs.
 
-If the number of CPU cores on the remote computers is not identified
+If the number of CPUs on the remote computers is not identified
-correctly the number of CPU cores can be added in front. Here the
+correctly the number of CPUs can be added in front. Here the computer
-computer has 8 CPU cores.
+has 8 CPUs.
 
   seq 10 | parallel --sshlogin 8/server.example.com echo
 
@@ -3691,7 +3736,8 @@ the special short hand I<-S ..> can be used:
 
 =head1 EXAMPLE: Distributing work to local and remote computers
 
-Convert *.mp3 to *.ogg running one process per CPU core on local computer and server2:
+Convert *.mp3 to *.ogg running one process per CPU on local computer
+and server2:
 
   parallel --trc {.}.ogg -S server2,: \
     'mpg321 -w - {} | oggenc -q0 - -o {.}.ogg' ::: *.mp3
@@ -3956,7 +4002,7 @@ To run 100 processes simultaneously do:
 As there is not a I<command> the jobs will be evaluated by the shell.
 
 
-=head1 EXAMPLE: Processing a big file using more cores
+=head1 EXAMPLE: Processing a big file using more CPUs
 
 To process a big file or some output you can use B<--pipe> to split up
 the data into blocks and pipe the blocks into the processing program.
@@ -3966,8 +4012,8 @@ If the program is B<gzip -9> you can do:
   cat bigfile | parallel --pipe --recend '' -k gzip -9 > bigfile.gz
 
 This will split B<bigfile> into blocks of 1 MB and pass that to B<gzip
--9> in parallel. One B<gzip> will be run per CPU core. The output of
+-9> in parallel. One B<gzip> will be run per CPU. The output of B<gzip
-B<gzip -9> will be kept in order and saved to B<bigfile.gz>
+-9> will be kept in order and saved to B<bigfile.gz>
 
 B<gzip> works fine if the output is appended, but some processing does
 not work like that - for example sorting. For this GNU B<parallel> can

src/parallel_design.pod

@@ -94,9 +94,11 @@ user having to know the location. So if the user's path includes
 dir that makes most sense for the sysadmin.
 
 
-=head3 env_parallel.bash / env_parallel.zsh / env_parallel.ksh / env_parallel.pdksh
+=head3 env_parallel.bash / env_parallel.sh / env_parallel.ash /
+env_parallel.dash / env_parallel.zsh / env_parallel.ksh /
+env_parallel.mksh
 
-B<env_parallel.(bash|ksh|pdksh|zsh)> defines the function
+B<env_parallel.(bash|sh|ash|dash|ksh|mksh|zsh)> defines the function
 B<env_parallel>. It uses B<alias> and B<typeset> to dump the
 configuration (with a few exceptions) into B<$PARALLEL_ENV> before
 running GNU B<parallel>.
@@ -145,7 +147,7 @@ This is then all saved in B<$PARALLEL_ENV>.
 GNU B<parallel> is called, and B<$PARALLEL_ENV> is deleted.
 
 
-=head2 parset
+=head2 parset (supported in sh, ash, dash, bash, zsh, ksh, mksh)
 
 B<parset> is a shell function. This is the reason why B<parset> can
 set variables: It runs in the shell which is calling it.
@@ -327,7 +329,9 @@ It is made this way to be compatible with B<*csh>/B<fish>.
   < $FILE perl -e 'while(@ARGV) {
       sysseek(STDIN,shift,0) || die;
       $left = shift;
-      while($read = sysread(STDIN,$buf, ($left > 131072 ? 131072 : $left))){
+      while($read =
+            sysread(STDIN,$buf,
+                    ($left > 131072 ? 131072 : $left))){
         $left -= $read;
         syswrite(STDOUT,$buf);
       }
@@ -343,7 +347,8 @@ and send it to STDOUT.
 =item --transfer
 
   ssh $SSHLOGIN mkdir -p ./$WORKDIR;
-  rsync --protocol 30 -rlDzR -essh ./{} $SSHLOGIN:./$WORKDIR;
+  rsync --protocol 30 -rlDzR \
+        -essh ./{} $SSHLOGIN:./$WORKDIR;
   ssh $SSHLOGIN "$COMMAND"
 
 Read about B<--protocol 30> in the section B<Rsync protocol version>.
@@ -359,8 +364,10 @@ Read about B<--protocol 30> in the section B<Rsync protocol version>.
 =item --return I<file>
 
   $COMMAND; _EXIT_status=$?; mkdir -p $WORKDIR;
-  rsync --protocol 30 --rsync-path=cd\ ./$WORKDIR\;\ rsync \
+  rsync --protocol 30 \
-    -rlDzR -essh $SSHLOGIN:./$FILE ./$WORKDIR; exit $_EXIT_status;
+    --rsync-path=cd\ ./$WORKDIR\;\ rsync \
+    -rlDzR -essh $SSHLOGIN:./$FILE ./$WORKDIR;
+  exit $_EXIT_status;
 
 The B<--rsync-path=cd ...> is needed because old versions of B<rsync>
 do not support B<--no-implied-dirs>.
@@ -374,7 +381,8 @@ wrapping 'sh -c' is enough?
 $RETURN is the wrapper from B<--return>
 
   $COMMAND; _EXIT_status=$?; $RETURN; 
-  ssh $SSHLOGIN \(rm\ -f\ ./$WORKDIR/{}\;\ rmdir\ ./$WORKDIR\ \>\&/dev/null\;\);
+  ssh $SSHLOGIN \(rm\ -f\ ./$WORKDIR/{}\;\
+                  rmdir\ ./$WORKDIR\ \>\&/dev/null\;\);
   exit $_EXIT_status;
 
 B<$_EXIT_status>: see B<--return> above.
@@ -496,7 +504,7 @@ And this will again work just fine, as long as you are running a
 single command. When you are running a composed command you need nice
 to apply to the whole command, and it gets harder still:
 
-  parallel -S server -q nice bash -c 'command1 ...; command2 | command3'
+  parallel -S server -q nice bash -c 'command1 ...; cmd2 | cmd3'
 
 It is not impossible, but by using B<--nice> GNU B<parallel> will do
 the right thing for you. Similarly when transferring files: It starts
@@ -824,7 +832,8 @@ B<parallel> had been in its normal mode. The script looks like this:
   < file perl -e 'while(@ARGV) { 
      sysseek(STDIN,shift,0) || die;
      $left = shift;
-     while($read = sysread(STDIN,$buf, ($left > 32768 ? 32768 : $left))){
+     while($read = sysread(STDIN,$buf,
+                           ($left > 131072 ? 131072 : $left))){
        $left -= $read; syswrite(STDOUT,$buf);
      }
   }' startbyte length_in_bytes
@@ -1135,6 +1144,23 @@ Unfortunately it is not always possible to predict the root cause of
 the error.
 
 
+=head2 Determine number of CPUs
+
+CPUs is an ambiguous term. It can mean the number of socket filled
+(i.e. the number of physical chips). It can mean the number of cores
+(i.e. the number of physical compute cores). It can mean the number of
+hyperthreaded cores (i.e. the number of virtual cores - with some of
+them possibly being hyperthreaded).
+
+On ark.intel.com Intel uses the terms I<cores> and I<threads> for
+number of physical cores and the number of hyperthreaded cores
+respectively.
+
+GNU B<parallel> uses uses I<CPUs> as the number of compute units and
+the terms I<sockets>, I<cores>, and I<threads> to specify how the
+number of compute units is calculated.
+
+
 =head2 Computation of load
 
 Contrary to the obvious B<--load> does not use load average. This is
@@ -1175,6 +1201,7 @@ respectively.
 The Signal column has been renamed to _Signal due to Signal being a
 reserved word in MySQL.
 
+
 =head2 Logo
 
 The logo is inspired by the Cafe Wall illusion. The font is DejaVu
@@ -1237,6 +1264,7 @@ Will that require 2x block size memory?
 These decisions were relevant for earlier versions of GNU B<parallel>,
 but not the current version. They are kept here as historical record.
 
+
 =head2 --tollef
 
 You can read about the history of GNU B<parallel> on

testsuite/tests-to-run/parallel-polarhome.sh

@@ -18,8 +18,8 @@ P="$P_WORKING"
 POLAR=`parallel -k echo {}.polarhome.com ::: $P`
 S_POLAR=`parallel -k echo -S 1/{}.polarhome.com ::: $P`
 
-# 2018-04-22 TIMEOUT=20
+# 2018-04-22 MAXTIME=20
-TIMEOUT=25
+MAXTIME=25
 RETRIES=4
 
 parallel --retries $RETRIES rsync -a /usr/local/bin/{parallel,env_parallel,env_parallel.*,parcat} ::: redhat.polarhome.com:bin/
@@ -28,9 +28,9 @@ doit() {
     # Avoid the stupid /etc/issue.net banner at Polarhome: -oLogLevel=quiet
     PARALLEL_SSH="ssh -oLogLevel=quiet"
     export PARALLEL_SSH
-    export TIMEOUT
+    export MAXTIME
     export RETRIES
-    echo TIMEOUT=$TIMEOUT RETRIES=$RETRIES
+    echo MAXTIME=$MAXTIME RETRIES=$RETRIES
 
     copy() {
 	# scp, but atomic (avoid half files if disconnected)
@@ -43,19 +43,19 @@ doit() {
     export -f copy
 
     par_nonall() {
-	parallel -j15 -k --retries $RETRIES --timeout $TIMEOUT --delay 0.1 --tag \
+	parallel -j15 -k --retries $RETRIES --timeout $MAXTIME --delay 0.1 --tag \
 		 --nonall $S_POLAR --argsep ,:- \
 		 'source setupenv >&/dev/null || . `pwd`/setupenv;' "$@"
     }
     export -f par_nonall
 
     echo '### Copy commands to servers'
-    parallel -vkj15 --retries $RETRIES --timeout $TIMEOUT --delay 0.03 --tag \
+    parallel -vkj15 --retries $RETRIES --timeout $MAXTIME --delay 0.03 --tag \
 	     copy {2} {1} {1/} \
 	     ::: bin/{parallel,env_parallel,env_parallel.*,parcat,stdout} \
 	     ::: $POLAR
     echo Done copying
-    
+
     # Test empty command
     test_empty_cmd() {
 	echo '### Test if empty command in process list causes problems'
@@ -65,11 +65,19 @@ doit() {
     export -f test_empty_cmd
     PARALLEL='--env test_empty_cmd' par_nonall test_empty_cmd 2>&1
 
-    
     par_nonall parallel echo Works on {} ::: '`hostname`' 2>&1
     par_nonall "stdout parallel --tmpdir / echo ::: test read-only tmp |" \
 	       "perl -pe '\$exit += s:/[a-z0-9_]+.arg:/XXXXXXXX.arg:gi; \$exit += s/[0-9][0-9][0-9][0-9]/0000/gi; END { exit not \$exit }' &&" \
 	       "echo OK readonly tmp" 2>&1
+
+    echo
+    echo '### --number-of-cores/--number-of-cpus should work with no error'
+    echo
+    par_nonall parallel --number-of-sockets 2>&1
+    par_nonall parallel --number-of-cores 2>&1
+    par_nonall parallel --number-of-threads 2>&1
+    par_nonall parallel --number-of-cpus 2>&1
+
     echo
     echo '### Does exporting a bash function kill parallel'
     echo

testsuite/wanted-results/parallel-polarhome

@@ -1,4 +1,4 @@
-TIMEOUT=25 RETRIES=4
+MAXTIME=25 RETRIES=4
 ### Copy commands to servers
 bin/parallel openbsd.polarhome.com	copy openbsd.polarhome.com bin/parallel parallel
 bin/parallel tru64.polarhome.com	copy tru64.polarhome.com bin/parallel parallel
@@ -184,6 +184,29 @@ bin/env_parallel.ksh hurd.polarhome.com	copy hurd.polarhome.com bin/env_parallel
 bin/env_parallel.ksh freebsd.polarhome.com	copy freebsd.polarhome.com bin/env_parallel.ksh env_parallel.ksh
 bin/env_parallel.ksh ubuntu.polarhome.com	copy ubuntu.polarhome.com bin/env_parallel.ksh env_parallel.ksh
 bin/env_parallel.ksh openindiana.polarhome.com	copy openindiana.polarhome.com bin/env_parallel.ksh env_parallel.ksh
+bin/env_parallel.mksh openbsd.polarhome.com	copy openbsd.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh tru64.polarhome.com	copy tru64.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh debian.polarhome.com	copy debian.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh redhat.polarhome.com	copy redhat.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh netbsd.polarhome.com	copy netbsd.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh macosx.polarhome.com	copy macosx.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh miros.polarhome.com	copy miros.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh centos.polarhome.com	copy centos.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh unixware.polarhome.com	copy unixware.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh pidora.polarhome.com	copy pidora.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh scosysv.polarhome.com	copy scosysv.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh raspbian.polarhome.com	copy raspbian.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh solaris-x86.polarhome.com	copy solaris-x86.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh aix.polarhome.com	copy aix.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh mandriva.polarhome.com	copy mandriva.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh debian-ppc.polarhome.com	copy debian-ppc.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh suse.polarhome.com	copy suse.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh solaris.polarhome.com	copy solaris.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh hpux.polarhome.com	copy hpux.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh hurd.polarhome.com	copy hurd.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh freebsd.polarhome.com	copy freebsd.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh ubuntu.polarhome.com	copy ubuntu.polarhome.com bin/env_parallel.mksh env_parallel.mksh
+bin/env_parallel.mksh openindiana.polarhome.com	copy openindiana.polarhome.com bin/env_parallel.mksh env_parallel.mksh
 bin/env_parallel.pdksh openbsd.polarhome.com	copy openbsd.polarhome.com bin/env_parallel.pdksh env_parallel.pdksh
 bin/env_parallel.pdksh tru64.polarhome.com	copy tru64.polarhome.com bin/env_parallel.pdksh env_parallel.pdksh
 bin/env_parallel.pdksh debian.polarhome.com	copy debian.polarhome.com bin/env_parallel.pdksh env_parallel.pdksh
@@ -388,52 +411,143 @@ ubuntu.polarhome.com	Works on ubuntu
 unixware.polarhome.com	Works on unixware.polarhome.com
 unixware.polarhome.com	UX:sh (/bin/sh): ERROR: source: Not found
 aix.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: The file access permissions do not allow the specified action. at /home/t/tange/bin/parallel line 0000
-aix.polarhome.com	OK
+aix.polarhome.com	OK readonly tmp
 centos.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Parent directory (/) is not writable
 centos.polarhome.com	 at /home/t/tange/bin/parallel line 0000
-centos.polarhome.com	OK
+centos.polarhome.com	OK readonly tmp
 debian-ppc.polarhome.com	Error in tempfile() using template /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000.
-debian-ppc.polarhome.com	OK
+debian-ppc.polarhome.com	OK readonly tmp
 debian.polarhome.com	Error in tempfile() using template /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000.
-debian.polarhome.com	OK
+debian.polarhome.com	OK readonly tmp
 freebsd.polarhome.com	Syntax error: Bad fd number
 hpux.polarhome.com	No such file or directory: bash
 macosx.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /Users/tange/bin/parallel line 0000
-macosx.polarhome.com	OK
+macosx.polarhome.com	OK readonly tmp
 mandriva.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000
-mandriva.polarhome.com	OK
+mandriva.polarhome.com	OK readonly tmp
 miros.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Parent directory (/) is not writable
 miros.polarhome.com	 at /home/t/tange/bin/parallel line 0000
-miros.polarhome.com	OK
+miros.polarhome.com	OK readonly tmp
 netbsd.polarhome.com	Error in tempfile() using template /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000.
 openbsd.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000
-openbsd.polarhome.com	OK
+openbsd.polarhome.com	OK readonly tmp
 openindiana.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /u/t/tange/bin/parallel line 0000
-openindiana.polarhome.com	OK
+openindiana.polarhome.com	OK readonly tmp
 pidora.polarhome.com	Error in tempfile() using template /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000.
-pidora.polarhome.com	OK
+pidora.polarhome.com	OK readonly tmp
 raspbian.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000
-raspbian.polarhome.com	OK
+raspbian.polarhome.com	OK readonly tmp
 redhat.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000
-redhat.polarhome.com	OK
+redhat.polarhome.com	OK readonly tmp
 scosysv.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Parent directory (/) is not writable
 scosysv.polarhome.com	 at /home/t/tange/bin/parallel line 0000
-scosysv.polarhome.com	OK
+scosysv.polarhome.com	OK readonly tmp
 solaris-x86.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at ~/bin/parallel line 0000
-solaris-x86.polarhome.com	OK
+solaris-x86.polarhome.com	OK readonly tmp
 solaris.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Parent directory (/) is not writable
 solaris.polarhome.com	 at /home/t/tange/bin/parallel line 0000
-solaris.polarhome.com	OK
+solaris.polarhome.com	OK readonly tmp
 suse.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000.
-suse.polarhome.com	OK
+suse.polarhome.com	OK readonly tmp
 tru64.polarhome.com	Error in tempfile() using /XXXXXXXX.arg: Parent directory (/) is not writable
 tru64.polarhome.com	 at /home/t/tange/bin/parallel line 0000
-tru64.polarhome.com	OK
+tru64.polarhome.com	OK readonly tmp
 ubuntu.polarhome.com	Error in tempfile() using template /XXXXXXXX.arg: Could not create temp file /XXXXXXXX.arg: Permission denied at /home/t/tange/bin/parallel line 0000.
-ubuntu.polarhome.com	OK
+ubuntu.polarhome.com	OK readonly tmp
 unixware.polarhome.com	UX:sh (/bin/sh): ERROR: source: Not found
 unixware.polarhome.com	UX:env: ERROR: No such file or directory: bash
 
+### --number-of-cores/--number-of-cpus should work with no error
+
+aix.polarhome.com	1
+centos.polarhome.com	1
+debian-ppc.polarhome.com	1
+debian.polarhome.com	1
+freebsd.polarhome.com	Syntax error: Bad fd number
+macosx.polarhome.com	2
+mandriva.polarhome.com	1
+miros.polarhome.com	1
+netbsd.polarhome.com	1
+openbsd.polarhome.com	1
+openindiana.polarhome.com	1
+pidora.polarhome.com	1
+raspbian.polarhome.com	1
+redhat.polarhome.com	1
+scosysv.polarhome.com	1
+solaris-x86.polarhome.com	
+solaris.polarhome.com	
+suse.polarhome.com	1
+tru64.polarhome.com	1
+ubuntu.polarhome.com	1
+unixware.polarhome.com	1
+unixware.polarhome.com	UX:sh (/bin/sh): ERROR: source: Not found
+aix.polarhome.com	1
+centos.polarhome.com	1
+debian-ppc.polarhome.com	1
+debian.polarhome.com	2
+freebsd.polarhome.com	Syntax error: Bad fd number
+macosx.polarhome.com	2
+mandriva.polarhome.com	1
+miros.polarhome.com	1
+netbsd.polarhome.com	1
+openbsd.polarhome.com	1
+openindiana.polarhome.com	1
+pidora.polarhome.com	1
+raspbian.polarhome.com	1
+redhat.polarhome.com	2
+scosysv.polarhome.com	1
+solaris-x86.polarhome.com	1
+solaris.polarhome.com	2
+suse.polarhome.com	1
+tru64.polarhome.com	1
+ubuntu.polarhome.com	2
+unixware.polarhome.com	1
+unixware.polarhome.com	UX:sh (/bin/sh): ERROR: source: Not found
+aix.polarhome.com	1
+centos.polarhome.com	1
+debian-ppc.polarhome.com	1
+debian.polarhome.com	2
+freebsd.polarhome.com	Syntax error: Bad fd number
+macosx.polarhome.com	2
+mandriva.polarhome.com	1
+miros.polarhome.com	1
+netbsd.polarhome.com	1
+openbsd.polarhome.com	1
+openindiana.polarhome.com	1
+pidora.polarhome.com	1
+raspbian.polarhome.com	1
+redhat.polarhome.com	2
+scosysv.polarhome.com	1
+solaris-x86.polarhome.com	1
+solaris.polarhome.com	2
+suse.polarhome.com	1
+tru64.polarhome.com	1
+ubuntu.polarhome.com	2
+unixware.polarhome.com	1
+unixware.polarhome.com	UX:sh (/bin/sh): ERROR: source: Not found
+aix.polarhome.com	1
+centos.polarhome.com	1
+debian-ppc.polarhome.com	1
+debian.polarhome.com	2
+freebsd.polarhome.com	Syntax error: Bad fd number
+macosx.polarhome.com	2
+mandriva.polarhome.com	1
+miros.polarhome.com	1
+netbsd.polarhome.com	1
+openbsd.polarhome.com	1
+openindiana.polarhome.com	1
+pidora.polarhome.com	1
+raspbian.polarhome.com	1
+redhat.polarhome.com	2
+scosysv.polarhome.com	1
+solaris-x86.polarhome.com	1
+solaris.polarhome.com	2
+suse.polarhome.com	1
+tru64.polarhome.com	1
+ubuntu.polarhome.com	2
+unixware.polarhome.com	1
+unixware.polarhome.com	UX:sh (/bin/sh): ERROR: source: Not found
+
 ### Does exporting a bash function kill parallel
 
 aix.polarhome.com	bash only A
@@ -491,6 +605,7 @@ aix.polarhome.com	     /home/t/tange/.shrc
 aix.polarhome.com	     /home/t/tange/.zshenv
 aix.polarhome.com	     /home/t/tange/.config/fish/config.fish
 aix.polarhome.com	     /home/t/tange/.kshrc
+aix.polarhome.com	     /home/t/tange/.mkshrc
 aix.polarhome.com	     /home/t/tange/.profile
 aix.polarhome.com	     /home/t/tange/.cshrc
 aix.polarhome.com	     /home/t/tange/.tcshrc
@@ -501,6 +616,7 @@ centos.polarhome.com	     /home/t/tange/.shrc
 centos.polarhome.com	     /home/t/tange/.zshenv
 centos.polarhome.com	     /home/t/tange/.config/fish/config.fish
 centos.polarhome.com	     /home/t/tange/.kshrc
+centos.polarhome.com	     /home/t/tange/.mkshrc
 centos.polarhome.com	     /home/t/tange/.profile
 centos.polarhome.com	     /home/t/tange/.cshrc
 centos.polarhome.com	     /home/t/tange/.tcshrc
@@ -511,6 +627,7 @@ debian-ppc.polarhome.com	     /home/t/tange/.shrc
 debian-ppc.polarhome.com	     /home/t/tange/.zshenv
 debian-ppc.polarhome.com	     /home/t/tange/.config/fish/config.fish
 debian-ppc.polarhome.com	     /home/t/tange/.kshrc
+debian-ppc.polarhome.com	     /home/t/tange/.mkshrc
 debian-ppc.polarhome.com	     /home/t/tange/.profile
 debian-ppc.polarhome.com	     /home/t/tange/.cshrc
 debian-ppc.polarhome.com	     /home/t/tange/.tcshrc
@@ -521,6 +638,7 @@ debian.polarhome.com	     /home/t/tange/.shrc
 debian.polarhome.com	     /home/t/tange/.zshenv
 debian.polarhome.com	     /home/t/tange/.config/fish/config.fish
 debian.polarhome.com	     /home/t/tange/.kshrc
+debian.polarhome.com	     /home/t/tange/.mkshrc
 debian.polarhome.com	     /home/t/tange/.profile
 debian.polarhome.com	     /home/t/tange/.cshrc
 debian.polarhome.com	     /home/t/tange/.tcshrc
@@ -532,6 +650,7 @@ macosx.polarhome.com	     /Users/tange/.shrc
 macosx.polarhome.com	     /Users/tange/.zshenv
 macosx.polarhome.com	     /Users/tange/.config/fish/config.fish
 macosx.polarhome.com	     /Users/tange/.kshrc
+macosx.polarhome.com	     /Users/tange/.mkshrc
 macosx.polarhome.com	     /Users/tange/.profile
 macosx.polarhome.com	     /Users/tange/.cshrc
 macosx.polarhome.com	     /Users/tange/.tcshrc
@@ -542,6 +661,7 @@ mandriva.polarhome.com	     /home/t/tange/.shrc
 mandriva.polarhome.com	     /home/t/tange/.zshenv
 mandriva.polarhome.com	     /home/t/tange/.config/fish/config.fish
 mandriva.polarhome.com	     /home/t/tange/.kshrc
+mandriva.polarhome.com	     /home/t/tange/.mkshrc
 mandriva.polarhome.com	     /home/t/tange/.profile
 mandriva.polarhome.com	     /home/t/tange/.cshrc
 mandriva.polarhome.com	     /home/t/tange/.tcshrc
@@ -552,6 +672,7 @@ miros.polarhome.com	     /home/t/tange/.shrc
 miros.polarhome.com	     /home/t/tange/.zshenv
 miros.polarhome.com	     /home/t/tange/.config/fish/config.fish
 miros.polarhome.com	     /home/t/tange/.kshrc
+miros.polarhome.com	     /home/t/tange/.mkshrc
 miros.polarhome.com	     /home/t/tange/.profile
 miros.polarhome.com	     /home/t/tange/.cshrc
 miros.polarhome.com	     /home/t/tange/.tcshrc
@@ -562,6 +683,7 @@ netbsd.polarhome.com	     /home/t/tange/.shrc
 netbsd.polarhome.com	     /home/t/tange/.zshenv
 netbsd.polarhome.com	     /home/t/tange/.config/fish/config.fish
 netbsd.polarhome.com	     /home/t/tange/.kshrc
+netbsd.polarhome.com	     /home/t/tange/.mkshrc
 netbsd.polarhome.com	     /home/t/tange/.profile
 netbsd.polarhome.com	     /home/t/tange/.cshrc
 netbsd.polarhome.com	     /home/t/tange/.tcshrc
@@ -572,6 +694,7 @@ openbsd.polarhome.com	     /home/t/tange/.shrc
 openbsd.polarhome.com	     /home/t/tange/.zshenv
 openbsd.polarhome.com	     /home/t/tange/.config/fish/config.fish
 openbsd.polarhome.com	     /home/t/tange/.kshrc
+openbsd.polarhome.com	     /home/t/tange/.mkshrc
 openbsd.polarhome.com	     /home/t/tange/.profile
 openbsd.polarhome.com	     /home/t/tange/.cshrc
 openbsd.polarhome.com	     /home/t/tange/.tcshrc
@@ -582,6 +705,7 @@ openindiana.polarhome.com	     /u/t/tange/.shrc
 openindiana.polarhome.com	     /u/t/tange/.zshenv
 openindiana.polarhome.com	     /u/t/tange/.config/fish/config.fish
 openindiana.polarhome.com	     /u/t/tange/.kshrc
+openindiana.polarhome.com	     /u/t/tange/.mkshrc
 openindiana.polarhome.com	     /u/t/tange/.profile
 openindiana.polarhome.com	     /u/t/tange/.cshrc
 openindiana.polarhome.com	     /u/t/tange/.tcshrc
@@ -592,6 +716,7 @@ pidora.polarhome.com	     /home/t/tange/.shrc
 pidora.polarhome.com	     /home/t/tange/.zshenv
 pidora.polarhome.com	     /home/t/tange/.config/fish/config.fish
 pidora.polarhome.com	     /home/t/tange/.kshrc
+pidora.polarhome.com	     /home/t/tange/.mkshrc
 pidora.polarhome.com	     /home/t/tange/.profile
 pidora.polarhome.com	     /home/t/tange/.cshrc
 pidora.polarhome.com	     /home/t/tange/.tcshrc
@@ -602,6 +727,7 @@ raspbian.polarhome.com	     /home/t/tange/.shrc
 raspbian.polarhome.com	     /home/t/tange/.zshenv
 raspbian.polarhome.com	     /home/t/tange/.config/fish/config.fish
 raspbian.polarhome.com	     /home/t/tange/.kshrc
+raspbian.polarhome.com	     /home/t/tange/.mkshrc
 raspbian.polarhome.com	     /home/t/tange/.profile
 raspbian.polarhome.com	     /home/t/tange/.cshrc
 raspbian.polarhome.com	     /home/t/tange/.tcshrc
@@ -612,6 +738,7 @@ redhat.polarhome.com	     /home/t/tange/.shrc
 redhat.polarhome.com	     /home/t/tange/.zshenv
 redhat.polarhome.com	     /home/t/tange/.config/fish/config.fish
 redhat.polarhome.com	     /home/t/tange/.kshrc
+redhat.polarhome.com	     /home/t/tange/.mkshrc
 redhat.polarhome.com	     /home/t/tange/.profile
 redhat.polarhome.com	     /home/t/tange/.cshrc
 redhat.polarhome.com	     /home/t/tange/.tcshrc
@@ -622,6 +749,7 @@ scosysv.polarhome.com	     /home/t/tange/.shrc
 scosysv.polarhome.com	     /home/t/tange/.zshenv
 scosysv.polarhome.com	     /home/t/tange/.config/fish/config.fish
 scosysv.polarhome.com	     /home/t/tange/.kshrc
+scosysv.polarhome.com	     /home/t/tange/.mkshrc
 scosysv.polarhome.com	     /home/t/tange/.profile
 scosysv.polarhome.com	     /home/t/tange/.cshrc
 scosysv.polarhome.com	     /home/t/tange/.tcshrc
@@ -632,6 +760,7 @@ solaris-x86.polarhome.com	     ~/.shrc
 solaris-x86.polarhome.com	     ~/.zshenv
 solaris-x86.polarhome.com	     ~/.config/fish/config.fish
 solaris-x86.polarhome.com	     ~/.kshrc
+solaris-x86.polarhome.com	     ~/.mkshrc
 solaris-x86.polarhome.com	     ~/.profile
 solaris-x86.polarhome.com	     ~/.cshrc
 solaris-x86.polarhome.com	     ~/.tcshrc
@@ -642,6 +771,7 @@ solaris.polarhome.com	     /home/t/tange/.shrc
 solaris.polarhome.com	     /home/t/tange/.zshenv
 solaris.polarhome.com	     /home/t/tange/.config/fish/config.fish
 solaris.polarhome.com	     /home/t/tange/.kshrc
+solaris.polarhome.com	     /home/t/tange/.mkshrc
 solaris.polarhome.com	     /home/t/tange/.profile
 solaris.polarhome.com	     /home/t/tange/.cshrc
 solaris.polarhome.com	     /home/t/tange/.tcshrc
@@ -652,6 +782,7 @@ suse.polarhome.com	     /home/t/tange/.shrc
 suse.polarhome.com	     /home/t/tange/.zshenv
 suse.polarhome.com	     /home/t/tange/.config/fish/config.fish
 suse.polarhome.com	     /home/t/tange/.kshrc
+suse.polarhome.com	     /home/t/tange/.mkshrc
 suse.polarhome.com	     /home/t/tange/.profile
 suse.polarhome.com	     /home/t/tange/.cshrc
 suse.polarhome.com	     /home/t/tange/.tcshrc
@@ -662,6 +793,7 @@ tru64.polarhome.com	     /home/t/tange/.shrc
 tru64.polarhome.com	     /home/t/tange/.zshenv
 tru64.polarhome.com	     /home/t/tange/.config/fish/config.fish
 tru64.polarhome.com	     /home/t/tange/.kshrc
+tru64.polarhome.com	     /home/t/tange/.mkshrc
 tru64.polarhome.com	     /home/t/tange/.profile
 tru64.polarhome.com	     /home/t/tange/.cshrc
 tru64.polarhome.com	     /home/t/tange/.tcshrc
@@ -672,6 +804,7 @@ ubuntu.polarhome.com	     /home/t/tange/.shrc
 ubuntu.polarhome.com	     /home/t/tange/.zshenv
 ubuntu.polarhome.com	     /home/t/tange/.config/fish/config.fish
 ubuntu.polarhome.com	     /home/t/tange/.kshrc
+ubuntu.polarhome.com	     /home/t/tange/.mkshrc
 ubuntu.polarhome.com	     /home/t/tange/.profile
 ubuntu.polarhome.com	     /home/t/tange/.cshrc
 ubuntu.polarhome.com	     /home/t/tange/.tcshrc