Trace number 1595689

Some explanations

A solver is run under the control of another program named runsolver. runsolver is in charge of imposing the CPU time limit and the memory limit to the solver. It also monitors some information about the process. The trace of the execution of a solver is divided into four (or five) parts:
  1. SOLVER DATA
    This is the output of the solver (stdout and stderr).
    Note that some very long lines in this section may be truncated by your web browser ! In such a case, you may want to use the "Download as text" link to get the trace as a text file.

    When the --timestamp option is passed to the runsolver program, each line output by the solver is prepended with a timestamp which indicates at what time the line was output by the solver. Times are relative to the start of the program, given in seconds. The first timestamp (if present) is estimated CPU time. The last timestamp is wall clock time.

    As some 'v lines' may be very long (sometimes several megabytes), the 'v line' output by your solver may be split on several lines to help limit the size of the trace recorded in the database. In any case, the exact output of your solver is preserved in a trace file.
  2. VERIFIER DATA
    The output of the solver is piped to a verifier program which will search a value line "v " and, if found, will check that the given interpretation satisfies all constraints.
  3. CONVERSION SCRIPT DATA (Optionnal)
    When a conversion script is used, this section shows the messages that were output by the conversion script.
  4. WATCHER DATA
    This is the informations gathered by the runsolver program. It first prints the different limits. There's a first limit on CPU time set to X seconds (see the parameters in the trace). After this time has ellapsed, runsolver sends a SIGTERM and 2 seconds later a SIGKILL to the solver. For safety, there's also another limit set to X+30 seconds which will send a SIGXPU to the solver. The last limit is on the virtual memory used by the process (see the parameters in the trace).
    Every ten seconds, the runsolver process fetches the content of /proc/loadavg, /proc/pid/stat and /proc/pid/statm (see man proc) and prints it as raw data. This is only recorded in case we need to investigate the behaviour of a solver. The memory used by the solver (vsize) is also given every ten seconds.
    When the solver exits, runsolver prints some informations such as status and time. CPU usage is the ratio CPU Time/Real Time.
  5. LAUNCHER DATA
    These informations are related to the script which will launch the solver. The most important informations are the command line given to the solver, the md5sum of the different files and the dump of the /proc/cpuinfo and /proc/meminfo which provides some useful information on the computer.

Solver answer on this benchmark

Solver NameAnswerCPU timeWall clock time
SAT07 reference solver: March KS 2007-02-08UNSAT 62.2785 62.3014

General information on the benchmark

NameCRAFTED/ramseycube/
Q32inK09.cnf
MD5SUM58cbf73dc7f1fd4bb325152069db03fb
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark16.8174
Satisfiable
(Un)Satisfiability was proved
Number of variables36
Number of clauses7938
Sum of the clauses size92232
Maximum clause length12
Minimum clause length4
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 4378
Number of clauses of size 50
Number of clauses of size over 57560

Solver Data 

20.58/20.66	c main():: ***                                   [ march satisfiability solver ]                                   ***
20.58/20.66	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
20.58/20.66	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
20.58/20.66	c main()::
20.58/20.66	c initFormula():: searching for DIMACS p-line....
20.58/20.66	c full lookahead due to high density!
20.58/20.66	c initFormula():: the DIMACS p-line indicates a CNF of 36 variables and 7938 clauses.
20.58/20.66	c parseCNF():: parsing....
20.58/20.66	c parseCNF():: the CNF contains 0 unary clauses.
20.58/20.66	c runParser():: parsing was successful, warming up engines...
20.58/20.66	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
20.58/20.66	c preprocessing fase I completed:: there are now 36 free variables and 7938 clauses.
20.58/20.66	c stat :: sign balance is biased by 56.449
20.58/20.66	c shorten_equivalence(): average equivalence length reduced from nan to nan
20.58/20.66	c using k-SAT heuristics (size based diff)
20.58/20.66	c longest clause has size 12
20.58/20.66	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
20.58/20.66	c main():: clause / variable ratio: ( 7938 / 36 ) = 220.50
20.58/20.66	c longest clause has size 12
20.58/20.66	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
20.58/20.66	c dynamic_preselect_setsize :: off
20.58/20.66	c suggested doublelook initial :: 0
20.58/20.66	c main():: all systems go!
20.58/20.66	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 0 NC: 145 JD: 10
21.28/21.31	c |----------------------------------------------------------------|
c |*
c |**
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c |****************************************************************| 1 NC: 1112 JD: 10
23.68/23.73	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 2 NC: 2967 JD: 10
26.78/26.88	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 3 NC: 6339 JD: 10
31.78/31.88	c |----------------------------------------------------------------|
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c |****************************************************************| 4 NC: 11352 JD: 10
38.87/38.95	c |----------------------------------------------------------------|
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c |****************************************************************| 5 NC: 17138 JD: 10
46.47/46.53	c |----------------------------------------------------------------|
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c |****************************************************************| 6 NC: 23035 JD: 10
53.17/53.28	c |----------------------------------------------------------------|
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c |****************************************************************| 7 NC: 27560 JD: 10
58.27/58.34	c |----------------------------------------------------------------|
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c |****************************************************************| 8 NC: 30475 JD: 10
61.36/61.40	c |----------------------------------------------------------------|
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c |****************************************************************| 9 NC: 31327 JD: 10
62.16/62.20	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| 10 NC: 31396 JD: 10
62.16/62.30	c |----------------------------------------------------------------|
c |
62.16/62.30	c
62.16/62.30	c main():: nodeCount: 31396
62.16/62.30	c main():: dead ends in main: 1069
62.16/62.30	c main():: lookAheadCount: 908761
62.16/62.30	c main():: unitResolveCount: 81676
62.16/62.30	c main():: time=62.280000
62.16/62.30	c main():: necessary_assignments: 126
62.16/62.30	c main():: bin_sat: 0, bin_unsat 0
62.16/62.30	c main():: doublelook: #: 82608, succes #: 60108
62.16/62.30	c main():: doublelook: overall 9.315 of all possible doublelooks executed
62.16/62.30	c main():: doublelook: succesrate: 72.763, average DL_trigger: 12.557
62.16/62.30	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1595689-1239280634/watcher-1595689-1239280634 -o /tmp/evaluation-result-1595689-1239280634/solver-1595689-1239280634 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_ks HOME/instance-1595689-1239280634.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 1843200 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 1894400 KiB
Solver output will be limited to a maximum of 15728640 bytes. The first 1048576 bytes and the last 14680064 bytes will be preserved
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 25602
/proc/meminfo: memFree=1428328/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=788 CPUtime=0
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 98 0 0 0 0 0 0 0 18 0 1 0 372264771 806912 84 1992294400 134512640 135019032 4294956240 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 197 84 47 123 0 72 0

[startup+0.089293 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 25602
/proc/meminfo: memFree=1428328/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2244 CPUtime=0.08
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 1665 0 0 0 8 0 0 0 18 0 1 0 372264771 2297856 446 1992294400 134512640 135019032 4294956240 18446744073709551615 134567048 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 561 446 67 123 0 436 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 2244

[startup+0.101293 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 25602
/proc/meminfo: memFree=1428328/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2244 CPUtime=0.09
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 1665 0 0 0 9 0 0 0 18 0 1 0 372264771 2297856 446 1992294400 134512640 135019032 4294956240 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 561 446 67 123 0 436 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 2244

[startup+0.301316 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 25602
/proc/meminfo: memFree=1428328/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2244 CPUtime=0.29
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 1665 0 0 0 29 0 0 0 19 0 1 0 372264771 2297856 446 1992294400 134512640 135019032 4294956240 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 561 446 67 123 0 436 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 2244

[startup+0.701359 s]
/proc/loadavg: 0.99 0.97 0.69 3/64 25602
/proc/meminfo: memFree=1428328/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2244 CPUtime=0.69
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 1665 0 0 0 69 0 0 0 24 0 1 0 372264771 2297856 446 1992294400 134512640 135019032 4294956240 18446744073709551615 134567037 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 561 446 67 123 0 436 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 2244

[startup+1.50145 s]
/proc/loadavg: 0.99 0.97 0.69 2/65 25603
/proc/meminfo: memFree=1426720/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2244 CPUtime=1.49
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 1665 0 0 0 149 0 0 0 25 0 1 0 372264771 2297856 446 1992294400 134512640 135019032 4294956240 18446744073709551615 134567037 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 561 446 67 123 0 436 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 2244

[startup+3.10162 s]
/proc/loadavg: 0.99 0.97 0.69 2/65 25603
/proc/meminfo: memFree=1426592/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2244 CPUtime=3.09
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 1665 0 0 0 309 0 0 0 25 0 1 0 372264771 2297856 446 1992294400 134512640 135019032 4294956240 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 561 446 67 123 0 436 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2244

[startup+6.30197 s]
/proc/loadavg: 0.99 0.97 0.70 2/65 25603
/proc/meminfo: memFree=1426464/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2244 CPUtime=6.29
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 1665 0 0 0 629 0 0 0 25 0 1 0 372264771 2297856 446 1992294400 134512640 135019032 4294956240 18446744073709551615 134567037 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 561 446 67 123 0 436 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2244

[startup+12.7017 s]
/proc/loadavg: 0.99 0.97 0.70 2/65 25603
/proc/meminfo: memFree=1426400/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2244 CPUtime=12.69
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 1665 0 0 0 1269 0 0 0 25 0 1 0 372264771 2297856 446 1992294400 134512640 135019032 4294956240 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 561 446 67 123 0 436 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2244

[startup+25.5011 s]
/proc/loadavg: 0.99 0.97 0.70 2/65 25603
/proc/meminfo: memFree=1426464/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2496 CPUtime=25.48
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 2580 0 0 0 2548 0 0 0 25 0 1 0 372264771 2555904 468 1992294400 134512640 135019032 4294956240 18446744073709551615 134585127 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 624 468 72 123 0 499 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 2496

[startup+51.1019 s]
/proc/loadavg: 0.99 0.97 0.71 2/65 25603
/proc/meminfo: memFree=1426464/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2496 CPUtime=51.07
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 2580 0 0 0 5107 0 0 0 25 0 1 0 372264771 2555904 468 1992294400 134512640 135019032 4294956240 18446744073709551615 134585127 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 624 468 72 123 0 499 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 2496

Solver just ended. Dumping a history of the last processes samples

[startup+57.5016 s]
/proc/loadavg: 0.99 0.97 0.71 2/65 25603
/proc/meminfo: memFree=1426528/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2496 CPUtime=57.47
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 2580 0 0 0 5747 0 0 0 25 0 1 0 372264771 2555904 468 1992294400 134512640 135019032 4294956240 18446744073709551615 134585127 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 624 468 72 123 0 499 0
Current children cumulated CPU time (s) 57.47
Current children cumulated vsize (KiB) 2496

[startup+60.702 s]
/proc/loadavg: 0.99 0.97 0.71 2/65 25603
/proc/meminfo: memFree=1426528/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2496 CPUtime=60.67
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 2580 0 0 0 6067 0 0 0 25 0 1 0 372264771 2555904 468 1992294400 134512640 135019032 4294956240 18446744073709551615 134585120 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 624 468 72 123 0 499 0
Current children cumulated CPU time (s) 60.67
Current children cumulated vsize (KiB) 2496

[startup+61.501 s]
/proc/loadavg: 0.99 0.97 0.71 2/65 25603
/proc/meminfo: memFree=1426528/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2496 CPUtime=61.47
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 2580 0 0 0 6147 0 0 0 25 0 1 0 372264771 2555904 468 1992294400 134512640 135019032 4294956240 18446744073709551615 134537981 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 624 468 72 123 0 499 0
Current children cumulated CPU time (s) 61.47
Current children cumulated vsize (KiB) 2496

[startup+61.9011 s]
/proc/loadavg: 0.99 0.97 0.71 2/65 25603
/proc/meminfo: memFree=1426528/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=2496 CPUtime=61.86
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194304 2580 0 0 0 6186 0 0 0 25 0 1 0 372264771 2555904 468 1992294400 134512640 135019032 4294956240 18446744073709551615 134585122 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 624 468 72 123 0 499 0
Current children cumulated CPU time (s) 61.86
Current children cumulated vsize (KiB) 2496

[startup+62.3011 s]
/proc/loadavg: 0.99 0.97 0.71 2/65 25603
/proc/meminfo: memFree=1426528/2055920 swapFree=4180084/4192956
[pid=25602] ppid=25600 vsize=0 CPUtime=62.26
/proc/25602/stat : 25602 (march_ks) R 25600 25602 25479 0 -1 4194308 2582 0 0 0 6226 0 0 0 25 0 1 0 372264771 0 0 1992294400 0 0 0 0 0 0 0 4096 0 0 0 0 17 0 0 0
/proc/25602/statm: 0 0 0 0 0 0 0
Current children cumulated CPU time (s) 62.26
Current children cumulated vsize (KiB) 0

Child status: 20
Real time (s): 62.3014
CPU time (s): 62.2785
CPU user time (s): 62.2685
CPU system time (s): 0.009998
CPU usage (%): 99.9633
Max. virtual memory (cumulated for all children) (KiB): 2496

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 62.2685
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 2582
page faults= 0
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 2
involuntary context switches= 151

runsolver used 0.047992 second user time and 0.19497 second system time

The end

Launcher Data 

Begin job on node42 at 2009-04-09 14:37:14
IDJOB=1595689
IDBENCH=71133
IDSOLVER=559
FILE ID=node42/1595689-1239280634
PBS_JOBID= 9115400
Free space on /tmp= 66392 MiB

SOLVER NAME= SAT07 reference solver: March KS 2007-02-08
BENCH NAME= SAT09/CRAFTED/ramseycube/Q32inK09.cnf
COMMAND LINE= HOME/march_ks BENCHNAME            
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1595689-1239280634/watcher-1595689-1239280634 -o /tmp/evaluation-result-1595689-1239280634/solver-1595689-1239280634 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_ks HOME/instance-1595689-1239280634.cnf            

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 58cbf73dc7f1fd4bb325152069db03fb
RANDOM SEED=877424865

node42.alineos.net Linux 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005

/proc/cpuinfo:
processor	: 0
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.211
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5914.62
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:

processor	: 1
vendor_id	: GenuineIntel
cpu family	: 15
model		: 4
model name	:                   Intel(R) Xeon(TM) CPU 3.00GHz
stepping	: 3
cpu MHz		: 3000.211
cache size	: 2048 KB
fpu		: yes
fpu_exception	: yes
cpuid level	: 5
wp		: yes
flags		: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm pni monitor ds_cpl cid cx16 xtpr
bogomips	: 5586.94
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1428808 kB
Buffers:         44456 kB
Cached:         530444 kB
SwapCached:       7656 kB
Active:          95568 kB
Inactive:       489204 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1428808 kB
SwapTotal:     4192956 kB
SwapFree:      4180084 kB
Dirty:            3132 kB
Writeback:           0 kB
Mapped:          13996 kB
Slab:            28460 kB
Committed_AS:  1588376 kB
PageTables:       1388 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264952 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66388 MiB
End job on node42 at 2009-04-09 14:38:16