Trace number 1857403

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 NameAnswerobjCPU timeWall clock time
SAT4J Pseudo Resolution 2.1.1OPT3 1.61975 1.04756

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/
factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=29-P3=11-B.opb
MD5SUM31ecba1f2caab058bc592ea08e468b48
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark3
Best CPU time to get the best result obtained on this benchmark0.105983
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function 3
Optimality of the best value was proved YES
Number of variables45
Total number of constraints7
Number of constraints which are clauses0
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints7
Minimum length of a constraint5
Maximum length of a constraint35
Number of terms in the objective function 5
Biggest coefficient in the objective function 16
Number of bits for the biggest coefficient in the objective function 5
Sum of the numbers in the objective function 31
Number of bits of the sum of numbers in the objective function 5
Biggest number in a constraint 512
Number of bits of the biggest number in a constraint 10
Biggest sum of numbers in a constraint 1984
Number of bits of the biggest sum of numbers11
Number of products (including duplicates)75
Sum of products size (including duplicates)150
Number of different products75
Sum of products size150

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data 

0.08/0.14	c SAT4J: a SATisfiability library for Java (c) 2004-2008 Daniel Le Berre
0.08/0.14	c This is free software under the dual EPL/GNU LGPL licenses.
0.08/0.14	c See www.sat4j.org for details.
0.08/0.15	c version 2.1.1.v20090612
0.08/0.15	c sun.arch.data.model	32
0.08/0.15	c java.version	1.6.0_12
0.08/0.15	c os.name	Linux
0.08/0.15	c os.version	2.6.9-22.EL.rootsmp
0.08/0.15	c os.arch	i386
0.08/0.15	c Free memory 1342000320
0.08/0.15	c Max memory 1344274432
0.08/0.15	c Total memory 1344274432
0.08/0.15	c Number of processors 2
0.23/0.20	c Pseudo Boolean Optimization
0.23/0.20	c --- Begin Solver configuration ---
0.23/0.20	c Stops conflict analysis at the first Unique Implication Point
0.23/0.20	c org.sat4j.pb.constraints.CompetResolutionPBMixedHTClauseCardConstrDataStructure@64dc11
0.23/0.20	c Learn all clauses as in MiniSAT
0.23/0.20	c claDecay=0.999 varDecay=0.95 conflictBoundIncFactor=1.5 initConflictBound=100 
0.23/0.20	c VSIDS like heuristics from MiniSAT using a heap phase appearing in latest learned clause taking into account the objective function
0.23/0.20	c Expensive reason simplification
0.23/0.20	c MiniSAT restarts strategy
0.23/0.20	c Memory based learned constraints deletion strategy
0.23/0.20	c timeout=2147483s
0.23/0.20	c DB Simplification allowed=false
0.23/0.20	c --- End Solver configuration ---
0.23/0.20	c solving HOME/instance-1857403-1244944850.opb
0.23/0.20	c reading problem ... 
0.23/0.25	c ... done. Wall clock time 0.048s.
0.23/0.25	c #vars     120
0.23/0.25	c #constraints  160
0.23/0.25	c constraints type 
0.23/0.25	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 75
0.23/0.25	c org.sat4j.pb.constraints.pb.MaxWatchPb => 85
1.18/0.71	c SATISFIABLE
1.18/0.71	c OPTIMIZING...
1.18/0.71	c Got one! Elapsed wall clock time (in seconds):0.513
1.18/0.71	o 17
1.18/0.79	c Got one! Elapsed wall clock time (in seconds):0.594
1.18/0.79	o 15
1.37/0.84	c Got one! Elapsed wall clock time (in seconds):0.638
1.37/0.84	o 13
1.37/0.85	c Got one! Elapsed wall clock time (in seconds):0.651
1.37/0.85	o 11
1.37/0.87	c Got one! Elapsed wall clock time (in seconds):0.665
1.37/0.87	o 9
1.37/0.88	c Got one! Elapsed wall clock time (in seconds):0.681
1.37/0.88	o 7
1.37/0.89	c Got one! Elapsed wall clock time (in seconds):0.694
1.37/0.89	o 3
1.50/0.99	c starts		: 23
1.50/0.99	c conflicts		: 2858
1.50/0.99	c decisions		: 3436
1.50/0.99	c propagations		: 38479
1.50/0.99	c inspects		: 389161
1.50/0.99	c learnt literals	: 5
1.50/0.99	c learnt binary clauses	: 19
1.50/0.99	c learnt ternary clauses	: 47
1.50/0.99	c learnt clauses	: 2852
1.50/0.99	c ignored clauses	: 0
1.50/0.99	c root simplifications	: 0
1.50/0.99	c removed literals (reason simplification)	: 32852
1.50/0.99	c reason swapping (by a shorter reason)	: 0
1.50/0.99	c Calls to reduceDB	: 0
1.50/0.99	c speed (assignments/second)	: 418250.0
1.50/0.99	c non guided choices	216
1.50/0.99	c learnt constraints type 
1.50/0.99	c constraints type 
1.50/0.99	c org.sat4j.pb.constraints.pb.OriginalHTClausePB => 75
1.50/0.99	c org.sat4j.pb.constraints.pb.MaxWatchPb => 85
1.50/0.99	s OPTIMUM FOUND
1.50/0.99	v x1 x2 -x3 -x4 -x5 x6 -x7 x8 -x9 -x10 x11 x12 x13 x14 x15 x16 x17 -x18 -x19 x20 x21 x22 x23 x24 -x25 x26 -x27 -x28 -x29 x30 -x31 -x32 -x33 -x34 -x35 -x36 x37 x38 x39 -x40 -x41 x42 -x43 x44 -x45 x46 x47 -x48 -x49 -x50 -x51 -x52 -x53 -x54 -x55 x56 x57 -x58 -x59 -x60 -x61 -x62 -x63 -x64 -x65 -x66 -x67 -x68 -x69 -x70 x71 x72 x73 x74 -x75 x76 x77 x78 x79 -x80 x81 x82 x83 x84 -x85 x86 x87 x88 x89 -x90 x91 x92 x93 x94 -x95 x96 -x97 -x98 -x99 x100 x101 -x102 -x103 -x104 x105 -x106 -x107 -x108 -x109 -x110 -x111 -x112 -x113 -x114 -x115 x116 -x117 -x118 -x119 x120 
1.50/0.99	c objective function=3
1.50/0.99	c Total wall clock time (in seconds): 0.788

Verifier Data 

OK	3

Watcher Data 

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

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1857403-1244944850/watcher-1857403-1244944850 -o /tmp/evaluation-result-1857403-1244944850/solver-1857403-1244944850 -C 1800 -W 2000 -M 1800 java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-1857403-1244944850.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 2000 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
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21892
/proc/meminfo: memFree=1376200/2055920 swapFree=4192956/4192956
[pid=21892] ppid=21890 vsize=152 CPUtime=0
/proc/21892/stat : 21892 (java6) R 21890 21892 21598 0 -1 0 41 0 0 0 0 0 0 0 20 0 1 0 47187859 155648 26 1992294400 134512640 134550932 4294956176 18446744073709551615 7619364 0 0 4096 0 0 0 0 17 1 0 0
/proc/21892/statm: 38 26 19 9 0 4 0

[startup+0.0801191 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21892
/proc/meminfo: memFree=1376200/2055920 swapFree=4192956/4192956
[pid=21892] ppid=21890 vsize=1470220 CPUtime=0.06
/proc/21892/stat : 21892 (java) S 21890 21892 21598 0 -1 0 3430 0 1 0 4 2 0 0 18 0 7 0 47187859 1505505280 3175 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800971 18446744073709551615 0 0 17 1 0 0
/proc/21892/statm: 367555 3175 1036 9 0 364906 0
Current children cumulated CPU time (s) 0.06
Current children cumulated vsize (KiB) 1470220

[startup+0.101124 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21892
/proc/meminfo: memFree=1376200/2055920 swapFree=4192956/4192956
[pid=21892] ppid=21890 vsize=1473608 CPUtime=0.08
/proc/21892/stat : 21892 (java) S 21890 21892 21598 0 -1 0 3609 0 1 0 6 2 0 0 18 0 12 0 47187859 1508974592 3352 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/21892/statm: 368402 3352 1068 9 0 365750 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 1473608

[startup+0.301144 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21892
/proc/meminfo: memFree=1376200/2055920 swapFree=4192956/4192956
[pid=21892] ppid=21890 vsize=1474808 CPUtime=0.38
/proc/21892/stat : 21892 (java) S 21890 21892 21598 0 -1 0 5085 0 1 0 34 4 0 0 18 0 13 0 47187859 1510203392 4788 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/21892/statm: 368702 4788 1359 9 0 366045 0
Current children cumulated CPU time (s) 0.38
Current children cumulated vsize (KiB) 1474808

[startup+0.701195 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21892
/proc/meminfo: memFree=1376200/2055920 swapFree=4192956/4192956
[pid=21892] ppid=21890 vsize=1479272 CPUtime=1.18
/proc/21892/stat : 21892 (java) S 21890 21892 21598 0 -1 0 7541 0 1 0 113 5 0 0 18 0 13 0 47187859 1514774528 6292 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/21892/statm: 369818 6292 1403 9 0 367161 0
Current children cumulated CPU time (s) 1.18
Current children cumulated vsize (KiB) 1479272

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

[startup+0.90121 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 21892
/proc/meminfo: memFree=1376200/2055920 swapFree=4192956/4192956
[pid=21892] ppid=21890 vsize=1478844 CPUtime=1.5
/proc/21892/stat : 21892 (java) S 21890 21892 21598 0 -1 0 9020 0 1 0 144 6 0 0 18 0 13 0 47187859 1514336256 7727 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/21892/statm: 369711 7727 1411 9 0 367054 0
Current children cumulated CPU time (s) 1.5
Current children cumulated vsize (KiB) 1478844

[startup+1.00122 s]
/proc/loadavg: 1.16 1.03 1.01 1/77 21906
/proc/meminfo: memFree=1347744/2055920 swapFree=4192956/4192956
[pid=21892] ppid=21890 vsize=1479168 CPUtime=1.61
/proc/21892/stat : 21892 (java) S 21890 21892 21598 0 -1 0 9730 0 1 0 154 7 0 0 18 0 13 0 47187859 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/21892/statm: 369792 8437 1412 9 0 367135 0
[pid=21892/tid=21894] ppid=21890 vsize=1479168 CPUtime=0.89
/proc/21892/task/21894/stat : 21894 (java) S 21890 21892 21598 0 -1 64 6289 0 1 0 85 4 0 0 21 0 13 0 47187860 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=21892/tid=21895] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21895/stat : 21895 (java) S 21890 21892 21598 0 -1 64 3 0 0 0 0 0 0 0 19 0 13 0 47187862 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=21892/tid=21896] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21896/stat : 21896 (java) S 21890 21892 21598 0 -1 64 1 0 0 0 0 0 0 0 20 0 13 0 47187862 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=21892/tid=21897] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21897/stat : 21897 (java) S 21890 21892 21598 0 -1 64 2 0 0 0 0 0 0 0 21 0 13 0 47187863 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 0 0 0
[pid=21892/tid=21898] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21898/stat : 21898 (java) S 21890 21892 21598 0 -1 64 10 0 0 0 0 0 0 0 22 0 13 0 47187864 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=21892/tid=21899] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21899/stat : 21899 (java) S 21890 21892 21598 0 -1 64 3 0 0 0 0 0 0 0 23 0 13 0 47187864 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=21892/tid=21900] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21900/stat : 21900 (java) S 21890 21892 21598 0 -1 64 0 0 0 0 0 0 0 0 24 0 13 0 47187868 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=21892/tid=21901] ppid=21890 vsize=1479168 CPUtime=0.27
/proc/21892/task/21901/stat : 21901 (java) S 21890 21892 21598 0 -1 64 1676 0 0 0 27 0 0 0 17 0 13 0 47187868 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=21892/tid=21902] ppid=21890 vsize=1479168 CPUtime=0.4
/proc/21892/task/21902/stat : 21902 (java) S 21890 21892 21598 0 -1 64 1008 0 0 0 40 0 0 0 15 0 13 0 47187868 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=21892/tid=21903] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21903/stat : 21903 (java) S 21890 21892 21598 0 -1 64 1 0 0 0 0 0 0 0 25 0 13 0 47187868 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 0 0 0
[pid=21892/tid=21904] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21904/stat : 21904 (java) S 21890 21892 21598 0 -1 64 2 0 0 0 0 0 0 0 15 0 13 0 47187868 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=21892/tid=21905] ppid=21890 vsize=1479168 CPUtime=0
/proc/21892/task/21905/stat : 21905 (java) S 21890 21892 21598 0 -1 64 4 0 0 0 0 0 0 0 19 0 13 0 47187885 1514668032 8437 1992294400 134512640 134550932 4294956016 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.61
Current children cumulated vsize (KiB) 1479168

Child status: 30
Real time (s): 1.04756
CPU time (s): 1.61975
CPU user time (s): 1.54177
CPU system time (s): 0.077988
CPU usage (%): 154.621
Max. virtual memory (cumulated for all children) (KiB): 1479288

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 1.54176
system time used= 0.077988
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 9735
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 213
involuntary context switches= 159

runsolver used 0.005999 second user time and 0.010998 second system time

The end

Launcher Data 

Begin job on node20 at 2009-06-14 04:00:50
IDJOB=1857403
IDBENCH=47999
IDSOLVER=682
FILE ID=node20/1857403-1244944850
PBS_JOBID= 9354713
Free space on /tmp= 66356 MiB

SOLVER NAME= SAT4J Pseudo Resolution 2.1.1
BENCH NAME= PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/roussel/factor-mod-B/factor-mod-size=5-P0=17-P1=13-P2=29-P3=11-B.opb
COMMAND LINE= java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1857403-1244944850/watcher-1857403-1244944850 -o /tmp/evaluation-result-1857403-1244944850/solver-1857403-1244944850 -C 1800 -W 2000 -M 1800  java6 -server -Xms1300m -Xmx1300m -jar HOME/org.sat4j.pb.jar HOME/instance-1857403-1244944850.opb

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

MD5SUM BENCH= 31ecba1f2caab058bc592ea08e468b48
RANDOM SEED=558894540

node20.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		: 3000.234
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		: 3000.234
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:       1376616 kB
Buffers:         75204 kB
Cached:         539040 kB
SwapCached:          0 kB
Active:          61108 kB
Inactive:       566520 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1376616 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             340 kB
Writeback:           0 kB
Mapped:          23232 kB
Slab:            37696 kB
Committed_AS:   105944 kB
PageTables:       1400 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= 66356 MiB
End job on node20 at 2009-06-14 04:00:51