Trace number 1628171

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 33.3389 33.3639

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S928666993-098.cnf
MD5SUMabbce28168cbe1770c6abedb21f913a2
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark33.3389
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, 14 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 378 free variables and 1601 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.467
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 160 duplicate clauses
0.00/0.01	c resolvent_look() :: found 93 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1694 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 1694 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1694 / 380 ) = 4.46
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 = 378
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 |**
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c |********************************
c |****************************************************************| ( 0/14) NodeCount: 167
0.00/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/14) NodeCount: 1594
0.59/0.64	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 6537
2.49/2.60	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/14) NodeCount: 16913
6.69/6.78	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 32953
13.28/13.36	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 50611
20.78/20.89	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/14) NodeCount: 64815
27.27/27.39	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/14) NodeCount: 72581
31.17/31.29	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/14) NodeCount: 75357
32.77/32.86	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 76062
33.17/33.28	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 76176
33.27/33.35	c |----------------------------------------------------------------|
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c |****************************************************************| (11/14) NodeCount: 76192
33.27/33.36	c |----------------------------------------------------------------|
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c |****************************************************************| (12/14) NodeCount: 76193
33.27/33.36	c |----------------------------------------------------------------|
c |
33.27/33.36	c
33.27/33.36	c main():: nodeCount: 76193
33.27/33.36	c main():: dead ends in main: 1312
33.27/33.36	c main():: lookAheadCount: 5154755
33.27/33.36	c main():: unitResolveCount: 782949
33.27/33.36	c main():: time=33.330000
33.27/33.36	c main():: necessary_assignments: 13570
33.27/33.36	c main():: bin_sat: 0, bin_unsat 0
33.27/33.36	c main():: doublelook: #: 303685, succes #: 220260
33.27/33.36	c main():: doublelook: overall 6.092 of all possible doublelooks executed
33.27/33.36	c main():: doublelook: succesrate: 72.529, average DL_trigger: 48.559
33.27/33.36	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-1628171-1240135456/watcher-1628171-1240135456 -o /tmp/evaluation-result-1628171-1240135456/solver-1628171-1240135456 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628171-1240135456.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: 0.99 0.98 0.99 3/64 22010
/proc/meminfo: memFree=1050440/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=972 CPUtime=0
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 137 0 0 0 0 0 0 0 22 0 1 0 41574409 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134702466 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 243 120 66 167 0 74 0

[startup+0.0844091 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 22010
/proc/meminfo: memFree=1050440/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=1536 CPUtime=0.07
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 249 0 0 0 7 0 0 0 22 0 1 0 41574409 1572864 232 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 384 232 91 167 0 215 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1536

[startup+0.101411 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 22010
/proc/meminfo: memFree=1050440/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=1536 CPUtime=0.09
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 251 0 0 0 9 0 0 0 22 0 1 0 41574409 1572864 234 1992294400 134512640 135197378 4294956240 18446744073709551615 134597086 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 384 234 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301434 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 22010
/proc/meminfo: memFree=1050440/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=1536 CPUtime=0.29
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 261 0 0 0 29 0 0 0 24 0 1 0 41574409 1572864 244 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 384 244 91 167 0 215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1536

[startup+0.701482 s]
/proc/loadavg: 0.99 0.98 0.99 3/64 22010
/proc/meminfo: memFree=1050440/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=1668 CPUtime=0.69
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 270 0 0 0 69 0 0 0 25 0 1 0 41574409 1708032 253 1992294400 134512640 135197378 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 417 253 91 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50158 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1049664/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=1668 CPUtime=1.49
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 279 0 0 0 149 0 0 0 25 0 1 0 41574409 1708032 262 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 417 262 91 167 0 248 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1668

[startup+3.10176 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1049536/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=1668 CPUtime=3.09
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 288 0 0 0 309 0 0 0 25 0 1 0 41574409 1708032 271 1992294400 134512640 135197378 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 417 271 91 167 0 248 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1668

[startup+6.30114 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1049408/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=1844 CPUtime=6.29
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 305 0 0 0 629 0 0 0 25 0 1 0 41574409 1888256 288 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 461 288 91 167 0 292 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1844

[startup+12.7019 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1049280/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=1844 CPUtime=12.68
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 321 0 0 0 1268 0 0 0 25 0 1 0 41574409 1888256 304 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 461 304 91 167 0 292 0
Current children cumulated CPU time (s) 12.68
Current children cumulated vsize (KiB) 1844

[startup+25.5014 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1048960/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=2088 CPUtime=25.47
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 400 0 0 0 2547 0 0 0 25 0 1 0 41574409 2138112 381 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 522 381 91 167 0 353 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 2088

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

[startup+28.7028 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1048896/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=2240 CPUtime=28.67
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 416 0 0 0 2867 0 0 0 25 0 1 0 41574409 2293760 397 1992294400 134512640 135197378 4294956240 18446744073709551615 134541955 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 560 397 91 167 0 391 0
Current children cumulated CPU time (s) 28.67
Current children cumulated vsize (KiB) 2240

[startup+31.9051 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1048832/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=2240 CPUtime=31.87
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 432 0 0 0 3187 0 0 0 25 0 1 0 41574409 2293760 413 1992294400 134512640 135197378 4294956240 18446744073709551615 134525272 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 560 413 91 167 0 391 0
Current children cumulated CPU time (s) 31.87
Current children cumulated vsize (KiB) 2240

[startup+32.7012 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1048832/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=2240 CPUtime=32.67
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 437 0 0 0 3267 0 0 0 25 0 1 0 41574409 2293760 418 1992294400 134512640 135197378 4294956240 18446744073709551615 134594078 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 560 418 91 167 0 391 0
Current children cumulated CPU time (s) 32.67
Current children cumulated vsize (KiB) 2240

[startup+33.1013 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1048832/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=2240 CPUtime=33.07
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 439 0 0 0 3307 0 0 0 25 0 1 0 41574409 2293760 420 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 560 420 91 167 0 391 0
Current children cumulated CPU time (s) 33.07
Current children cumulated vsize (KiB) 2240

[startup+33.3013 s]
/proc/loadavg: 0.99 0.98 0.99 2/65 22011
/proc/meminfo: memFree=1048832/2055920 swapFree=4192956/4192956
[pid=22010] ppid=22008 vsize=2468 CPUtime=33.27
/proc/22010/stat : 22010 (march_hi) R 22008 22010 21878 0 -1 4194304 441 0 0 0 3327 0 0 0 25 0 1 0 41574409 2527232 422 1992294400 134512640 135197378 4294956240 18446744073709551615 134552753 0 0 4096 0 0 0 0 17 1 0 0
/proc/22010/statm: 617 422 91 167 0 448 0
Current children cumulated CPU time (s) 33.27
Current children cumulated vsize (KiB) 2468

Child status: 20
Real time (s): 33.3639
CPU time (s): 33.3389
CPU user time (s): 33.3319
CPU system time (s): 0.006998
CPU usage (%): 99.9253
Max. virtual memory (cumulated for all children) (KiB): 2468

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 33.3319
system time used= 0.006998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 444
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= 615

runsolver used 0.034994 second user time and 0.081987 second system time

The end

Launcher Data 

Begin job on node75 at 2009-04-19 12:04:16
IDJOB=1628171
IDBENCH=70627
IDSOLVER=583
FILE ID=node75/1628171-1240135456
PBS_JOBID= 9157868
Free space on /tmp= 66336 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S928666993-098.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628171-1240135456/watcher-1628171-1240135456 -o /tmp/evaluation-result-1628171-1240135456/solver-1628171-1240135456 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628171-1240135456.cnf

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

MD5SUM BENCH= abbce28168cbe1770c6abedb21f913a2
RANDOM SEED=1149556198

node75.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		: 3000.213
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		: 3000.213
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	: 5996.54
clflush size	: 64
cache_alignment	: 128
address sizes	: 36 bits physical, 48 bits virtual
power management:


/proc/meminfo:
MemTotal:      2055920 kB
MemFree:       1050920 kB
Buffers:         61920 kB
Cached:         849688 kB
SwapCached:          0 kB
Active:         203944 kB
Inactive:       721532 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1050920 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             852 kB
Writeback:           0 kB
Mapped:          23656 kB
Slab:            65488 kB
Committed_AS:   145040 kB
PageTables:       1416 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= 66336 MiB
End job on node75 at 2009-04-19 12:04:49