Trace number 1517894

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
march_nn nnUNSAT 24.1913 24.2091

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/360/
unif-k3-r4.25-v360-c1530-S2025517367-061.cnf
MD5SUM747eab6e16fc5e29dfb421f806361704
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark20.9748
Satisfiable
(Un)Satisfiability was proved
Number of variables360
Number of clauses1530
Sum of the clauses size4590
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31530
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 50

Solver Data 

0.00/0.01	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.00/0.01	c main()::  **                Copyright (C) 2001-2009 M.J.H. Heule, J.E. van Zwieten, and M. Dufour                 **
0.00/0.01	c main()::   *  This program may be redistributed and/or modified under the terms of the GNU Gereral Public License  *
0.00/0.01	c main()::
0.00/0.01	c initFormula():: searching for DIMACS p-line....
0.00/0.01	c initFormula():: the DIMACS p-line indicates a CNF of 360 variables and 1530 clauses.
0.00/0.01	c parseCNF():: parsing....
0.00/0.01	c parseCNF():: the CNF contains 0 unary clauses.
0.00/0.01	c runParser():: parsing was successful, warming up engines...
0.00/0.01	c simplify_formula():: removed 0 tautological, 20 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 357 free variables and 1510 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.453
0.00/0.01	c using 3-SAT heuristics (occurence based diff)
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 163 duplicate clauses
0.00/0.01	c resolvent_look() :: found 109 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 360 variables and 1619 clauses.
0.00/0.01	c transformTo3SAT():: by the way, the maximal clause length before transformation was 3.
0.00/0.01	c transformTo3SAT():: I will add 0 variables and 0 clauses!
0.00/0.01	c transformTo3SAT():: the transformation yielded 360 variabels and 1619 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1619 / 360 ) = 4.50
0.00/0.01	c longest clause has size 3
0.00/0.01	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.00/0.01	c number of free variables = 357
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 0/999) NodeCount: 20
0.00/0.02	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/999) NodeCount: 228
0.02/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 1337
0.40/0.43	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/999) NodeCount: 5010
1.79/1.85	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 12853
5.29/5.37	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 24087
10.89/10.91	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 35116
16.78/16.84	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 42738
21.18/21.28	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 46316
23.37/23.44	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/999) NodeCount: 47338
23.97/24.09	c |----------------------------------------------------------------|
c |**
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c |****************************************************************| (10/999) NodeCount: 47484
24.08/24.19	c |----------------------------------------------------------------|
c |****
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c |****************************************************************| (11/999) NodeCount: 47493
24.18/24.20	c |----------------------------------------------------------------|
c |
24.18/24.20	c
24.18/24.20	c main():: nodeCount: 47493
24.18/24.20	c main():: dead ends in main: 1350
24.18/24.20	c main():: lookAheadCount: 3280487
24.18/24.20	c main():: unitResolveCount: 815673
24.18/24.20	c main():: time=24.180000
24.18/24.20	c main():: necessary_assignments: 10933
24.18/24.20	c main():: bin_sat: 0, bin_unsat 0
24.18/24.20	c main():: doublelook: #: 185847, succes #: 134017
24.18/24.20	c main():: doublelook: overall 5.856 of all possible doublelooks executed
24.18/24.20	c main():: doublelook: succesrate: 72.111, average DL_trigger: 45.792
24.18/24.20	s UNSATISFIABLE

Verifier Data 

No possible verification on an UNSAT instance

Watcher Data 

runsolver version 3.2.9 (svn:489) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-1517894-1238292575/watcher-1517894-1238292575 -o /tmp/evaluation-result-1517894-1238292575/solver-1517894-1238292575 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517894-1238292575.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: 1.03 1.02 1.00 3/64 24418
/proc/meminfo: memFree=1125072/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=972 CPUtime=0
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 135 0 0 0 0 0 0 0 18 0 1 0 1101919896 995328 118 1992294400 134512640 135197250 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 243 118 67 167 0 74 0

[startup+0.0240191 s]
/proc/loadavg: 1.03 1.02 1.00 3/64 24418
/proc/meminfo: memFree=1125072/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=1508 CPUtime=0.02
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 226 0 0 0 2 0 0 0 18 0 1 0 1101919896 1544192 209 1992294400 134512640 135197250 4294956240 18446744073709551615 134542163 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 377 209 93 167 0 208 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1508

[startup+0.102026 s]
/proc/loadavg: 1.03 1.02 1.00 3/64 24418
/proc/meminfo: memFree=1125072/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=1508 CPUtime=0.1
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 249 0 0 0 10 0 0 0 18 0 1 0 1101919896 1544192 232 1992294400 134512640 135197250 4294956240 18446744073709551615 134618321 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 377 232 93 167 0 208 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1508

[startup+0.302044 s]
/proc/loadavg: 1.03 1.02 1.00 3/64 24418
/proc/meminfo: memFree=1125072/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=1652 CPUtime=0.3
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 264 0 0 0 30 0 0 0 19 0 1 0 1101919896 1691648 247 1992294400 134512640 135197250 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 413 247 93 167 0 244 0
Current children cumulated CPU time (s) 0.3
Current children cumulated vsize (KiB) 1652

[startup+0.701082 s]
/proc/loadavg: 1.03 1.02 1.00 3/64 24418
/proc/meminfo: memFree=1125072/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=1652 CPUtime=0.69
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 282 0 0 0 69 0 0 0 22 0 1 0 1101919896 1691648 265 1992294400 134512640 135197250 4294956240 18446744073709551615 134548535 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 413 265 93 167 0 244 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1652

[startup+1.50116 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1124424/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=1932 CPUtime=1.49
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 323 0 0 0 149 0 0 0 25 0 1 0 1101919896 1978368 306 1992294400 134512640 135197250 4294956240 18446744073709551615 134572932 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 483 306 93 167 0 314 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1932

[startup+3.1013 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1124040/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=2000 CPUtime=3.09
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 353 0 0 0 309 0 0 0 25 0 1 0 1101919896 2048000 336 1992294400 134512640 135197250 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 500 336 93 167 0 331 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2000

[startup+6.3016 s]
/proc/loadavg: 1.03 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1123784/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=2252 CPUtime=6.29
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 406 0 0 0 629 0 0 0 25 0 1 0 1101919896 2306048 389 1992294400 134512640 135197250 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 563 389 93 167 0 394 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2252

[startup+12.7012 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1123152/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=2720 CPUtime=12.69
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 544 0 0 0 1269 0 0 0 25 0 1 0 1101919896 2785280 511 1992294400 134512640 135197250 4294956240 18446744073709551615 134570822 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 680 511 93 167 0 511 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2720

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

[startup+19.1018 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1122768/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=3060 CPUtime=19.08
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 630 0 0 0 1908 0 0 0 25 0 1 0 1101919896 3133440 597 1992294400 134512640 135197250 4294956240 18446744073709551615 134543408 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 765 597 93 167 0 596 0
Current children cumulated CPU time (s) 19.08
Current children cumulated vsize (KiB) 3060

[startup+22.3011 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1122640/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=3572 CPUtime=22.28
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 672 0 0 0 2228 0 0 0 25 0 1 0 1101919896 3657728 639 1992294400 134512640 135197250 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 893 639 93 167 0 724 0
Current children cumulated CPU time (s) 22.28
Current children cumulated vsize (KiB) 3572

[startup+23.1052 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1122576/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=3888 CPUtime=23.08
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 682 0 0 0 2308 0 0 0 25 0 1 0 1101919896 3981312 649 1992294400 134512640 135197250 4294956240 18446744073709551615 134542045 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 972 649 93 167 0 803 0
Current children cumulated CPU time (s) 23.08
Current children cumulated vsize (KiB) 3888

[startup+23.9012 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1122576/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=3888 CPUtime=23.87
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 691 0 0 0 2387 0 0 0 25 0 1 0 1101919896 3981312 658 1992294400 134512640 135197250 4294956240 18446744073709551615 134590671 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 972 658 93 167 0 803 0
Current children cumulated CPU time (s) 23.87
Current children cumulated vsize (KiB) 3888

[startup+24.1013 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1122512/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=3888 CPUtime=24.08
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 693 0 0 0 2408 0 0 0 25 0 1 0 1101919896 3981312 660 1992294400 134512640 135197250 4294956240 18446744073709551615 134542099 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 972 660 93 167 0 803 0
Current children cumulated CPU time (s) 24.08
Current children cumulated vsize (KiB) 3888

[startup+24.2053 s]
/proc/loadavg: 1.02 1.02 1.00 2/65 24419
/proc/meminfo: memFree=1122512/2055920 swapFree=4176868/4192956
[pid=24418] ppid=24416 vsize=3888 CPUtime=24.18
/proc/24418/stat : 24418 (march_nn) R 24416 24418 23679 0 -1 4194304 695 0 0 0 2418 0 0 0 25 0 1 0 1101919896 3981312 662 1992294400 134512640 135197250 4294956240 18446744073709551615 134526658 0 0 4096 0 0 0 0 17 1 0 0
/proc/24418/statm: 972 662 93 167 0 803 0
Current children cumulated CPU time (s) 24.18
Current children cumulated vsize (KiB) 3888

Child status: 20
Real time (s): 24.2091
CPU time (s): 24.1913
CPU user time (s): 24.1853
CPU system time (s): 0.005999
CPU usage (%): 99.9264
Max. virtual memory (cumulated for all children) (KiB): 3888

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 24.1853
system time used= 0.005999
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 697
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= 493

runsolver used 0.019996 second user time and 0.073988 second system time

The end

Launcher Data 

Begin job on node48 at 2009-03-29 04:09:35
IDJOB=1517894
IDBENCH=70634
IDSOLVER=522
FILE ID=node48/1517894-1238292575
PBS_JOBID= 9061006
Free space on /tmp= 66464 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/360/unif-k3-r4.25-v360-c1530-S2025517367-061.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517894-1238292575/watcher-1517894-1238292575 -o /tmp/evaluation-result-1517894-1238292575/solver-1517894-1238292575 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517894-1238292575.cnf

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

MD5SUM BENCH= 747eab6e16fc5e29dfb421f806361704
RANDOM SEED=176245433

node48.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		: 3000.236
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		: 3000.236
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:       1125552 kB
Buffers:         86804 kB
Cached:         747156 kB
SwapCached:      10192 kB
Active:         120276 kB
Inactive:       725444 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1125552 kB
SwapTotal:     4192956 kB
SwapFree:      4176868 kB
Dirty:             792 kB
Writeback:           0 kB
Mapped:          17436 kB
Slab:            70600 kB
Committed_AS:  2508936 kB
PageTables:       1376 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= 66464 MiB
End job on node48 at 2009-03-29 04:10:00