Trace number 1516993

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 103.884 103.921

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/420/
unif-k3-r4.25-v420-c1785-S596342014-039.cnf
MD5SUM2515572a613e65602da74910f5ce3b7f
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark103.884
Satisfiable
(Un)Satisfiability was proved
Number of variables420
Number of clauses1785
Sum of the clauses size5355
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31785
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 420 variables and 1785 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 420 free variables and 1785 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.465
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 167 duplicate clauses
0.00/0.01	c resolvent_look() :: found 112 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 420 variables and 1897 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 420 variabels and 1897 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1897 / 420 ) = 4.52
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 = 420
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 |****************************************************************| ( 0/16) NodeCount: 154
0.07/0.09	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/16) NodeCount: 1809
0.79/0.82	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/16) NodeCount: 9757
4.39/4.49	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/16) NodeCount: 30266
14.09/14.11	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/16) NodeCount: 67247
31.49/31.57	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/16) NodeCount: 114601
54.38/54.49	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/16) NodeCount: 158296
76.57/76.62	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/16) NodeCount: 187112
92.06/92.20	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/16) NodeCount: 200729
100.16/100.30	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/16) NodeCount: 205296
103.06/103.18	c |----------------------------------------------------------------|
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c |****************************************************************| (10/16) NodeCount: 206291
103.76/103.83	c |----------------------------------------------------------------|
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c |****************************************************************| (11/16) NodeCount: 206407
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c |****************************************************************| (12/16) NodeCount: 206411
103.86/103.91	c |----------------------------------------------------------------|
c |
103.86/103.92	c
103.86/103.92	c main():: nodeCount: 206411
103.86/103.92	c main():: dead ends in main: 3112
103.86/103.92	c main():: lookAheadCount: 13317973
103.86/103.92	c main():: unitResolveCount: 2340759
103.86/103.92	c main():: time=103.890000
103.86/103.92	c main():: necessary_assignments: 41552
103.86/103.92	c main():: bin_sat: 0, bin_unsat 0
103.86/103.92	c main():: doublelook: #: 811043, succes #: 585083
103.86/103.92	c main():: doublelook: overall 6.305 of all possible doublelooks executed
103.86/103.92	c main():: doublelook: succesrate: 72.140, average DL_trigger: 50.681
103.86/103.92	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-1516993-1238278545/watcher-1516993-1238278545 -o /tmp/evaluation-result-1516993-1238278545/solver-1516993-1238278545 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1516993-1238278545.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: 0.91 0.98 0.99 3/64 6980
/proc/meminfo: memFree=1037504/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=984 CPUtime=0
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 139 0 0 0 0 0 0 0 18 0 1 0 1100516361 1007616 122 1992294400 134512640 135197378 4294956240 18446744073709551615 134565317 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 246 122 65 167 0 77 0

[startup+0.0784571 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 6980
/proc/meminfo: memFree=1037504/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=1580 CPUtime=0.07
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 260 0 0 0 7 0 0 0 18 0 1 0 1100516361 1617920 243 1992294400 134512640 135197378 4294956240 18446744073709551615 134552532 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 395 243 91 167 0 226 0
Current children cumulated CPU time (s) 0.07
Current children cumulated vsize (KiB) 1580

[startup+0.101461 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 6980
/proc/meminfo: memFree=1037504/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=1712 CPUtime=0.09
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 265 0 0 0 9 0 0 0 18 0 1 0 1100516361 1753088 248 1992294400 134512640 135197378 4294956240 18446744073709551615 134552726 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 428 248 91 167 0 259 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1712

[startup+0.301494 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 6980
/proc/meminfo: memFree=1037504/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=1712 CPUtime=0.29
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 278 0 0 0 29 0 0 0 19 0 1 0 1100516361 1753088 261 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 428 261 91 167 0 259 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1712

[startup+0.701562 s]
/proc/loadavg: 0.91 0.98 0.99 3/64 6980
/proc/meminfo: memFree=1037504/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=1712 CPUtime=0.69
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 286 0 0 0 69 0 0 0 23 0 1 0 1100516361 1753088 269 1992294400 134512640 135197378 4294956240 18446744073709551615 134649527 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 428 269 91 167 0 259 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1712

[startup+1.5017 s]
/proc/loadavg: 0.91 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1036792/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=1712 CPUtime=1.49
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 294 0 0 0 149 0 0 0 25 0 1 0 1100516361 1753088 277 1992294400 134512640 135197378 4294956240 18446744073709551615 134590849 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 428 277 91 167 0 259 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1712

[startup+3.10197 s]
/proc/loadavg: 0.91 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1036664/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=1868 CPUtime=3.09
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 306 0 0 0 309 0 0 0 25 0 1 0 1100516361 1912832 289 1992294400 134512640 135197378 4294956240 18446744073709551615 134597712 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 467 289 91 167 0 298 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1868

[startup+6.30151 s]
/proc/loadavg: 0.92 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1036536/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=1868 CPUtime=6.29
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 312 0 0 0 629 0 0 0 25 0 1 0 1100516361 1912832 295 1992294400 134512640 135197378 4294956240 18446744073709551615 134542426 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 467 295 91 167 0 298 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1868

[startup+12.7016 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1036344/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=1868 CPUtime=12.69
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 332 0 0 0 1269 0 0 0 25 0 1 0 1100516361 1912832 315 1992294400 134512640 135197378 4294956240 18446744073709551615 134539183 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 467 315 91 167 0 298 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1868

[startup+25.5018 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1036152/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=2072 CPUtime=25.49
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 376 0 0 0 2548 1 0 0 25 0 1 0 1100516361 2121728 359 1992294400 134512640 135197378 4294956240 18446744073709551615 134618476 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 518 359 91 167 0 349 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2072

[startup+51.1011 s]
/proc/loadavg: 0.96 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1035960/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=2324 CPUtime=51.08
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 446 0 0 0 5107 1 0 0 25 0 1 0 1100516361 2379776 429 1992294400 134512640 135197378 4294956240 18446744073709551615 134649156 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 581 429 91 167 0 412 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 2324

[startup+102.306 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1034744/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=3772 CPUtime=102.26
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 734 0 0 0 10225 1 0 0 25 0 1 0 1100516361 3862528 717 1992294400 134512640 135197378 4294956240 18446744073709551615 134556608 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 943 717 91 167 0 774 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 3772

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

[startup+103.102 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1034744/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=3772 CPUtime=103.06
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 739 0 0 0 10305 1 0 0 25 0 1 0 1100516361 3862528 722 1992294400 134512640 135197378 4294956240 18446744073709551615 134552464 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 943 722 91 167 0 774 0
Current children cumulated CPU time (s) 103.06
Current children cumulated vsize (KiB) 3772

[startup+103.501 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1034744/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=3772 CPUtime=103.46
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 743 0 0 0 10345 1 0 0 25 0 1 0 1100516361 3862528 726 1992294400 134512640 135197378 4294956240 18446744073709551615 134525324 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 943 726 91 167 0 774 0
Current children cumulated CPU time (s) 103.46
Current children cumulated vsize (KiB) 3772

[startup+103.901 s]
/proc/loadavg: 0.98 0.98 0.99 2/65 6981
/proc/meminfo: memFree=1034744/2055920 swapFree=4175308/4192956
[pid=6980] ppid=6978 vsize=3772 CPUtime=103.86
/proc/6980/stat : 6980 (march_hi) R 6978 6980 6651 0 -1 4194304 745 0 0 0 10385 1 0 0 25 0 1 0 1100516361 3862528 728 1992294400 134512640 135197378 4294956240 18446744073709551615 134542135 0 0 4096 0 0 0 0 17 1 0 0
/proc/6980/statm: 943 728 91 167 0 774 0
Current children cumulated CPU time (s) 103.86
Current children cumulated vsize (KiB) 3772

Child status: 20
Real time (s): 103.921
CPU time (s): 103.884
CPU user time (s): 103.87
CPU system time (s): 0.013997
CPU usage (%): 99.9646
Max. virtual memory (cumulated for all children) (KiB): 3772

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 103.87
system time used= 0.013997
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 748
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= 440

runsolver used 0.069989 second user time and 0.251961 second system time

The end

Launcher Data 

Begin job on node55 at 2009-03-28 23:15:45
IDJOB=1516993
IDBENCH=70559
IDSOLVER=521
FILE ID=node55/1516993-1238278545
PBS_JOBID= 9060866
Free space on /tmp= 66212 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/420/unif-k3-r4.25-v420-c1785-S596342014-039.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1516993-1238278545/watcher-1516993-1238278545 -o /tmp/evaluation-result-1516993-1238278545/solver-1516993-1238278545 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1516993-1238278545.cnf

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

MD5SUM BENCH= 2515572a613e65602da74910f5ce3b7f
RANDOM SEED=867950518

node55.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		: 3000.259
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		: 3000.259
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:       1037984 kB
Buffers:         89820 kB
Cached:         832532 kB
SwapCached:      11560 kB
Active:         118292 kB
Inactive:       817216 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1037984 kB
SwapTotal:     4192956 kB
SwapFree:      4175308 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          18888 kB
Slab:            68412 kB
Committed_AS:  2693340 kB
PageTables:       1372 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= 66212 MiB
End job on node55 at 2009-03-28 23:17:29