Trace number 1517870

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 53.5949 53.6189

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S260616787-042.cnf
MD5SUM9a70ac660abd105bceac08fd27643051
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark46.8969
Satisfiable
(Un)Satisfiability was proved
Number of variables380
Number of clauses1615
Sum of the clauses size4845
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31615
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 380 variables and 1615 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, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.399
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 153 duplicate clauses
0.00/0.01	c resolvent_look() :: found 86 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1701 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 380 variabels and 1701 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1701 / 380 ) = 4.48
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 = 380
0.00/0.01	c dynamic_preselect_setsize :: off
0.00/0.01	c main():: all systems go!
0.00/0.01	c |----------------------------------------------------------------|
c |*
c |**
c |****
c |********
c |****************
c |********************************
c |****************************************************************| ( 0/999) NodeCount: 25
0.01/0.02	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 1/999) NodeCount: 270
0.01/0.09	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/999) NodeCount: 1655
0.49/0.53	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 3/999) NodeCount: 6700
2.39/2.40	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/999) NodeCount: 19210
7.70/7.76	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/999) NodeCount: 40537
17.78/17.83	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/999) NodeCount: 65990
30.98/31.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/999) NodeCount: 87218
42.89/42.95	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/999) NodeCount: 99177
50.08/50.16	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 9/999) NodeCount: 103522
52.87/52.91	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (10/999) NodeCount: 104457
53.47/53.54	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (11/999) NodeCount: 104541
53.57/53.61	c |----------------------------------------------------------------|
c |****
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c |****************
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c |****************************************************************| (12/999) NodeCount: 104542
53.57/53.61	c |----------------------------------------------------------------|
c |
53.57/53.61	c
53.57/53.61	c main():: nodeCount: 104542
53.57/53.61	c main():: dead ends in main: 2469
53.57/53.61	c main():: lookAheadCount: 6852037
53.57/53.61	c main():: unitResolveCount: 1819920
53.57/53.61	c main():: time=53.590000
53.57/53.61	c main():: necessary_assignments: 23239
53.57/53.61	c main():: bin_sat: 0, bin_unsat 0
53.57/53.61	c main():: doublelook: #: 405720, succes #: 291887
53.57/53.61	c main():: doublelook: overall 6.130 of all possible doublelooks executed
53.57/53.61	c main():: doublelook: succesrate: 71.943, average DL_trigger: 47.120
53.57/53.61	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-1517870-1238292287/watcher-1517870-1238292287 -o /tmp/evaluation-result-1517870-1238292287/solver-1517870-1238292287 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_nn HOME/instance-1517870-1238292287.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 1.04 1.00 3/69 16958
/proc/meminfo: memFree=1018376/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=972 CPUtime=0
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 1101890346 995328 121 1992294400 134512640 135197250 4294956240 18446744073709551615 134560984 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 243 121 67 167 0 74 0

[startup+0.0207101 s]
/proc/loadavg: 1.03 1.04 1.00 3/69 16958
/proc/meminfo: memFree=1018376/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=1536 CPUtime=0.01
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 231 0 0 0 1 0 0 0 18 0 1 0 1101890346 1572864 214 1992294400 134512640 135197250 4294956240 18446744073709551615 134541222 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 384 214 93 167 0 215 0
Current children cumulated CPU time (s) 0.01
Current children cumulated vsize (KiB) 1536

[startup+0.101729 s]
/proc/loadavg: 1.03 1.04 1.00 3/69 16958
/proc/meminfo: memFree=1018376/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=1536 CPUtime=0.09
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 250 0 0 0 9 0 0 0 18 0 1 0 1101890346 1572864 233 1992294400 134512640 135197250 4294956240 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 384 233 93 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301734 s]
/proc/loadavg: 1.03 1.04 1.00 3/69 16958
/proc/meminfo: memFree=1018376/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=1536 CPUtime=0.29
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 264 0 0 0 29 0 0 0 19 0 1 0 1101890346 1572864 247 1992294400 134512640 135197250 4294956240 18446744073709551615 134718558 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 384 247 93 167 0 215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1536

[startup+0.70177 s]
/proc/loadavg: 1.03 1.04 1.00 3/69 16958
/proc/meminfo: memFree=1018376/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=1704 CPUtime=0.69
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 279 0 0 0 69 0 0 0 22 0 1 0 1101890346 1744896 262 1992294400 134512640 135197250 4294956240 18446744073709551615 134525339 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 426 262 93 167 0 257 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1704

[startup+1.50284 s]
/proc/loadavg: 1.03 1.04 1.00 2/70 16959
/proc/meminfo: memFree=1017600/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=1840 CPUtime=1.49
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 334 0 0 0 149 0 0 0 25 0 1 0 1101890346 1884160 317 1992294400 134512640 135197250 4294956240 18446744073709551615 134525296 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 460 317 93 167 0 291 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1840

[startup+3.10198 s]
/proc/loadavg: 1.03 1.04 1.00 2/70 16959
/proc/meminfo: memFree=1017280/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=2008 CPUtime=3.09
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 359 0 0 0 309 0 0 0 25 0 1 0 1101890346 2056192 342 1992294400 134512640 135197250 4294956240 18446744073709551615 134542169 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 502 342 93 167 0 333 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 2008

[startup+6.30126 s]
/proc/loadavg: 1.03 1.04 1.00 2/70 16959
/proc/meminfo: memFree=1017024/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=2324 CPUtime=6.29
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 424 0 0 0 629 0 0 0 25 0 1 0 1101890346 2379776 407 1992294400 134512640 135197250 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 581 407 93 167 0 412 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 2324

[startup+12.7018 s]
/proc/loadavg: 1.02 1.04 1.00 2/70 16959
/proc/meminfo: memFree=1016384/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=3056 CPUtime=12.69
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 529 0 0 0 1269 0 0 0 25 0 1 0 1101890346 3129344 512 1992294400 134512640 135197250 4294956240 18446744073709551615 134611702 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 764 512 93 167 0 595 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 3056

[startup+25.5019 s]
/proc/loadavg: 1.02 1.04 1.00 2/70 16959
/proc/meminfo: memFree=1015616/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=3896 CPUtime=25.48
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 723 0 0 0 2548 0 0 0 25 0 1 0 1101890346 3989504 706 1992294400 134512640 135197250 4294956240 18446744073709551615 134570746 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 974 706 93 167 0 805 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 3896

[startup+51.1012 s]
/proc/loadavg: 1.01 1.04 1.00 2/70 16959
/proc/meminfo: memFree=1014208/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=6468 CPUtime=51.08
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 1069 0 0 0 5107 1 0 0 25 0 1 0 1101890346 6623232 1052 1992294400 134512640 135197250 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 1617 1052 93 167 0 1448 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 6468

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

[startup+52.7013 s]
/proc/loadavg: 1.01 1.03 1.00 2/70 16959
/proc/meminfo: memFree=1014080/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=6468 CPUtime=52.68
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 1088 0 0 0 5267 1 0 0 25 0 1 0 1101890346 6623232 1071 1992294400 134512640 135197250 4294956240 18446744073709551615 134603846 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 1617 1071 93 167 0 1448 0
Current children cumulated CPU time (s) 52.68
Current children cumulated vsize (KiB) 6468

[startup+53.1024 s]
/proc/loadavg: 1.01 1.03 1.00 2/70 16959
/proc/meminfo: memFree=1014080/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=6468 CPUtime=53.07
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 1093 0 0 0 5306 1 0 0 25 0 1 0 1101890346 6623232 1076 1992294400 134512640 135197250 4294956240 18446744073709551615 134526789 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 1617 1076 93 167 0 1448 0
Current children cumulated CPU time (s) 53.07
Current children cumulated vsize (KiB) 6468

[startup+53.5014 s]
/proc/loadavg: 1.01 1.03 1.00 2/70 16959
/proc/meminfo: memFree=1014080/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=6468 CPUtime=53.47
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 1097 0 0 0 5346 1 0 0 25 0 1 0 1101890346 6623232 1080 1992294400 134512640 135197250 4294956240 18446744073709551615 134593998 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 1617 1080 93 167 0 1448 0
Current children cumulated CPU time (s) 53.47
Current children cumulated vsize (KiB) 6468

[startup+53.6014 s]
/proc/loadavg: 1.01 1.03 1.00 2/70 16959
/proc/meminfo: memFree=1014080/2055920 swapFree=4171840/4192956
[pid=16958] ppid=16956 vsize=6600 CPUtime=53.57
/proc/16958/stat : 16958 (march_nn) R 16956 16958 14533 0 -1 4194304 1099 0 0 0 5356 1 0 0 25 0 1 0 1101890346 6758400 1082 1992294400 134512640 135197250 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/16958/statm: 1650 1082 93 167 0 1481 0
Current children cumulated CPU time (s) 53.57
Current children cumulated vsize (KiB) 6600

Child status: 20
Real time (s): 53.6189
CPU time (s): 53.5949
CPU user time (s): 53.5799
CPU system time (s): 0.014997
CPU usage (%): 99.9552
Max. virtual memory (cumulated for all children) (KiB): 6600

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 53.5799
system time used= 0.014997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1101
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= 395

runsolver used 0.056991 second user time and 0.160975 second system time

The end

Launcher Data 

Begin job on node58 at 2009-03-29 04:04:47
IDJOB=1517870
IDBENCH=70632
IDSOLVER=522
FILE ID=node58/1517870-1238292287
PBS_JOBID= 9060953
Free space on /tmp= 66400 MiB

SOLVER NAME= march_nn nn
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S260616787-042.cnf
COMMAND LINE= HOME/march_nn BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517870-1238292287/watcher-1517870-1238292287 -o /tmp/evaluation-result-1517870-1238292287/solver-1517870-1238292287 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_nn HOME/instance-1517870-1238292287.cnf

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

MD5SUM BENCH= 9a70ac660abd105bceac08fd27643051
RANDOM SEED=267514359

node58.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		: 3000.222
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		: 3000.222
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:       1018792 kB
Buffers:         89184 kB
Cached:         855484 kB
SwapCached:      11412 kB
Active:         235368 kB
Inactive:       722232 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1018792 kB
SwapTotal:     4192956 kB
SwapFree:      4171840 kB
Dirty:             788 kB
Writeback:           0 kB
Mapped:          17436 kB
Slab:            64972 kB
Committed_AS:  2523976 kB
PageTables:       1764 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= 66400 MiB
End job on node58 at 2009-03-29 04:05:40