Trace number 1628173

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_hi hiUNSAT 40.7578 40.7766

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S1807135406-059.cnf
MD5SUMcb595cd6bad1f0c5699baaa892a03467
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark40.7578
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 0.410
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 168 duplicate clauses
0.00/0.01	c resolvent_look() :: found 85 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1700 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 1700 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1700 / 380 ) = 4.47
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 |*
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c |****************************************************************| ( 0/12) NodeCount: 155
0.04/0.07	c |----------------------------------------------------------------|
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1.00/1.06	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/12) NodeCount: 9780
4.29/4.33	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/12) NodeCount: 25878
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c |****************************************************************| ( 4/12) NodeCount: 46575
20.89/20.94	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/12) NodeCount: 66377
30.08/30.18	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/12) NodeCount: 78810
36.18/36.25	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/12) NodeCount: 84489
39.27/39.33	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/12) NodeCount: 86302
40.37/40.47	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/12) NodeCount: 86633
40.67/40.73	c |----------------------------------------------------------------|
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c |****************************************************************| (10/12) NodeCount: 86669
40.67/40.77	c |----------------------------------------------------------------|
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c |****************************************************************| (11/12) NodeCount: 86671
40.67/40.77	c |----------------------------------------------------------------|
c |
40.67/40.77	c
40.67/40.77	c main():: nodeCount: 86671
40.67/40.77	c main():: dead ends in main: 1928
40.67/40.77	c main():: lookAheadCount: 5853756
40.67/40.77	c main():: unitResolveCount: 909150
40.67/40.77	c main():: time=40.750000
40.67/40.77	c main():: necessary_assignments: 18788
40.67/40.77	c main():: bin_sat: 0, bin_unsat 0
40.67/40.77	c main():: doublelook: #: 342408, succes #: 246820
40.67/40.77	c main():: doublelook: overall 6.056 of all possible doublelooks executed
40.67/40.77	c main():: doublelook: succesrate: 72.084, average DL_trigger: 47.405
40.67/40.77	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-1628173-1240135975/watcher-1628173-1240135975 -o /tmp/evaluation-result-1628173-1240135975/solver-1628173-1240135975 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628173-1240135975.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 5000 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 5030 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 6000 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: 0.92 0.98 0.99 3/64 26396
/proc/meminfo: memFree=1325840/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=972 CPUtime=0
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 41624635 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 243 120 66 167 0 74 0

[startup+0.0459331 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26396
/proc/meminfo: memFree=1325840/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1536 CPUtime=0.04
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 242 0 0 0 4 0 0 0 18 0 1 0 41624635 1572864 225 1992294400 134512640 135197378 4294956240 18446744073709551615 134539341 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 384 225 91 167 0 215 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1536

[startup+0.101938 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26396
/proc/meminfo: memFree=1325840/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1536 CPUtime=0.09
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 253 0 0 0 9 0 0 0 18 0 1 0 41624635 1572864 236 1992294400 134512640 135197378 4294956240 18446744073709551615 134594084 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 384 236 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301957 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26396
/proc/meminfo: memFree=1325840/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1668 CPUtime=0.29
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 263 0 0 0 29 0 0 0 19 0 1 0 41624635 1708032 246 1992294400 134512640 135197378 4294956240 18446744073709551615 134552716 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 417 246 91 167 0 248 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1668

[startup+0.701994 s]
/proc/loadavg: 0.92 0.98 0.99 3/64 26396
/proc/meminfo: memFree=1325840/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1668 CPUtime=0.69
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 271 0 0 0 69 0 0 0 22 0 1 0 41624635 1708032 254 1992294400 134512640 135197378 4294956240 18446744073709551615 134541965 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 417 254 91 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50107 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1325128/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1668 CPUtime=1.49
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 277 0 0 0 149 0 0 0 25 0 1 0 41624635 1708032 260 1992294400 134512640 135197378 4294956240 18446744073709551615 134597305 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 417 260 91 167 0 248 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1668

[startup+3.10122 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324936/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1668 CPUtime=3.09
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 286 0 0 0 309 0 0 0 25 0 1 0 41624635 1708032 269 1992294400 134512640 135197378 4294956240 18446744073709551615 134552369 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 417 269 91 167 0 248 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1668

[startup+6.30152 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324808/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1668 CPUtime=6.29
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 293 0 0 0 629 0 0 0 25 0 1 0 41624635 1708032 276 1992294400 134512640 135197378 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 417 276 91 167 0 248 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1668

[startup+12.7011 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324744/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1808 CPUtime=12.69
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 303 0 0 0 1269 0 0 0 25 0 1 0 41624635 1851392 286 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 452 286 91 167 0 283 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1808

[startup+25.5013 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324616/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1808 CPUtime=25.48
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 327 0 0 0 2548 0 0 0 25 0 1 0 41624635 1851392 310 1992294400 134512640 135197378 4294956240 18446744073709551615 134525236 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 452 310 91 167 0 283 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 1808

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

[startup+31.906 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324488/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1944 CPUtime=31.89
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 357 0 0 0 3189 0 0 0 25 0 1 0 41624635 1990656 340 1992294400 134512640 135197378 4294956240 18446744073709551615 134597712 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 486 340 91 167 0 317 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 1944

[startup+35.1013 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324488/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=1944 CPUtime=35.08
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 361 0 0 0 3508 0 0 0 25 0 1 0 41624635 1990656 344 1992294400 134512640 135197378 4294956240 18446744073709551615 134539261 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 486 344 91 167 0 317 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 1944

[startup+38.3016 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324488/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=2012 CPUtime=38.27
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 368 0 0 0 3827 0 0 0 25 0 1 0 41624635 2060288 351 1992294400 134512640 135197378 4294956240 18446744073709551615 134542040 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 503 351 91 167 0 334 0
Current children cumulated CPU time (s) 38.27
Current children cumulated vsize (KiB) 2012

[startup+39.9017 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324424/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=2012 CPUtime=39.87
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 372 0 0 0 3987 0 0 0 25 0 1 0 41624635 2060288 355 1992294400 134512640 135197378 4294956240 18446744073709551615 134539377 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 503 355 91 167 0 334 0
Current children cumulated CPU time (s) 39.87
Current children cumulated vsize (KiB) 2012

[startup+40.3017 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324424/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=2012 CPUtime=40.27
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 373 0 0 0 4027 0 0 0 25 0 1 0 41624635 2060288 356 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 503 356 91 167 0 334 0
Current children cumulated CPU time (s) 40.27
Current children cumulated vsize (KiB) 2012

[startup+40.7058 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 26397
/proc/meminfo: memFree=1324424/2055920 swapFree=4192956/4192956
[pid=26396] ppid=26394 vsize=2012 CPUtime=40.67
/proc/26396/stat : 26396 (march_hi) R 26394 26396 26279 0 -1 4194304 374 0 0 0 4067 0 0 0 25 0 1 0 41624635 2060288 357 1992294400 134512640 135197378 4294956240 18446744073709551615 134605243 0 0 4096 0 0 0 0 17 1 0 0
/proc/26396/statm: 503 357 91 167 0 334 0
Current children cumulated CPU time (s) 40.67
Current children cumulated vsize (KiB) 2012

Child status: 20
Real time (s): 40.7766
CPU time (s): 40.7578
CPU user time (s): 40.7488
CPU system time (s): 0.008998
CPU usage (%): 99.9538
Max. virtual memory (cumulated for all children) (KiB): 2012

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 40.7488
system time used= 0.008998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 377
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= 314

runsolver used 0.023996 second user time and 0.116982 second system time

The end

Launcher Data 

Begin job on node61 at 2009-04-19 12:12:55
IDJOB=1628173
IDBENCH=70629
IDSOLVER=583
FILE ID=node61/1628173-1240135975
PBS_JOBID= 9157828
Free space on /tmp= 66456 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S1807135406-059.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628173-1240135975/watcher-1628173-1240135975 -o /tmp/evaluation-result-1628173-1240135975/solver-1628173-1240135975 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628173-1240135975.cnf

TIME LIMIT= 5000 seconds
MEMORY LIMIT= 1800 MiB
MAX NB THREAD= 0

MD5SUM BENCH= cb595cd6bad1f0c5699baaa892a03467
RANDOM SEED=1630302436

node61.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		: 3000.216
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		: 3000.216
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:       1326256 kB
Buffers:         82192 kB
Cached:         570472 kB
SwapCached:          0 kB
Active:         310784 kB
Inactive:       354632 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1326256 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             784 kB
Writeback:           0 kB
Mapped:          22548 kB
Slab:            50412 kB
Committed_AS:   191020 kB
PageTables:       1368 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264884 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66456 MiB
End job on node61 at 2009-04-19 12:13:36