Trace number 295288

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, and are wall clock time (not CPU 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 KS 2007-02-08SAT 225.031 225.099

General information on the benchmark

Namerandom/OnTreshold/7SAT/v55/
unif-k7-r89-v55-c4895-S1214515938-10.SAT.shuffled.cnf
MD5SUMde03602edd8993d2cfb54584ba8c73c9
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.609906
Satisfiable
(Un)Satisfiability was proved
Number of variables55
Number of clauses4895
Sum of the clauses size34265
Maximum clause length7
Minimum clause length7
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 30
Number of clauses of size 40
Number of clauses of size 50
Number of clauses of size over 54895

Solver Data (download as text)

0.61/0.71	c main():: ***                                   [ march satisfiability solver ]                                   ***
0.61/0.71	c main()::  **            Copyright (C) 2001-2004 M. Dufour, M. Heule, J. van Zwieten and H. van Maaren            **
0.61/0.71	c main()::   * This program may be redistributed and/or modified under the terms of the GNU Gereral Public License *
0.61/0.71	c main()::
0.61/0.71	c initFormula():: searching for DIMACS p-line....
0.61/0.71	c full lookahead due to high density!
0.61/0.71	c initFormula():: the DIMACS p-line indicates a CNF of 55 variables and 4895 clauses.
0.61/0.71	c parseCNF():: parsing....
0.61/0.71	c parseCNF():: the CNF contains 0 unary clauses.
0.61/0.71	c runParser():: parsing was successful, warming up engines...
0.61/0.71	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.61/0.71	c preprocessing fase I completed:: there are now 55 free variables and 4895 clauses.
0.61/0.71	c stat :: sign balance is biased by 0.006
0.61/0.71	c shorten_equivalence(): average equivalence length reduced from nan to nan
0.61/0.71	c using k-SAT heuristics (size based diff)
0.61/0.71	c longest clause has size 7
0.61/0.71	c simplify_formula():: removed 0 tautological, 0 satisfied and 3 duplicate clauses
0.61/0.71	c resolvent_look() :: found 3 resolvents
0.61/0.71	c main():: clause / variable ratio: ( 4898 / 55 ) = 89.05
0.61/0.71	c longest clause has size 7
0.61/0.71	c simplify_formula():: removed 0 tautological, 0 satisfied and 0 duplicate clauses
0.61/0.71	c dynamic_preselect_setsize :: off
0.61/0.71	c suggested doublelook initial :: 0
0.61/0.71	c main():: all systems go!
0.61/0.71	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |********************************
c |****************************************************************| 0 NC: 118 JD: 14
0.71/0.78	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| 2 NC: 8841 JD: 14
4.50/4.60	c |----------------------------------------------------------------|
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42.18/42.30	c |----------------------------------------------------------------|
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c |****************************************************************| 5 NC: 194583 JD: 14
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c |****************************************************************| 7 NC: 411168 JD: 14
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c |****************************************************************| 8 NC: 475078 JD: 14
214.83/214.92	c |----------------------------------------------------------------|
c |*
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224.97/225.09	c solution bin :: 10010111101110.001000000000000000
224.97/225.09	c direction branchin :: current_rights = 10
224.97/225.09	
c |**************************
224.97/225.09	c
224.97/225.09	c main():: nodeCount: 496281
224.97/225.09	c main():: dead ends in main: 677
224.97/225.09	c main():: lookAheadCount: 24975928
224.97/225.09	c main():: unitResolveCount: 945846
224.97/225.09	c main():: time=225.050000
224.97/225.09	c main():: necessary_assignments: 1477
224.97/225.09	c main():: bin_sat: 0, bin_unsat 0
224.97/225.09	c main():: doublelook: #: 1578907, succes #: 1278006
224.97/225.09	c main():: doublelook: overall 6.443 of all possible doublelooks executed
224.97/225.09	c main():: doublelook: succesrate: 80.942, average DL_trigger: 15.956
224.97/225.09	c main():: SOLUTION VERIFIED :-)
224.97/225.09	s SATISFIABLE
224.97/225.09	v 1 2 3 -4 5 -6 7 8 -9 10 11 12 -13 -14 -15 16 -17 -18 19 -20 -21 -22 23 -24 -25 26 -27 28 29 30 -31 -32 33 -34 35 36 37 38 39 40 41 -42 43 -44 -45 46 47 -48 -49 -50 -51 52 -53 -54 -55 0

Verifier Data (download as text)

OK

Watcher Data (download as text)

runsolver version 3.2.0 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node30/watcher-295288-1171803362 -o ROOT/results/node30/solver-295288-1171803362 -C 1200 -M 1800 --output-limit 1,15 /tmp/evaluation/295288-1171803362/march_ks /tmp/evaluation/295288-1171803362/instance-295288-1171803362.cnf 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1200 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1230 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 0.97 0.99 3/77 625
/proc/meminfo: memFree=863536/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=656 CPUtime=0
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 92 0 0 0 0 0 0 0 18 0 1 0 174100280 671744 77 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134662703 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 164 77 47 123 0 39 0

[startup+0.106588 s]
/proc/loadavg: 0.91 0.97 0.99 3/77 625
/proc/meminfo: memFree=863536/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1468 CPUtime=0.1
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 576 0 0 0 10 0 0 0 18 0 1 0 174100280 1503232 276 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134536953 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 367 276 67 123 0 242 0
Current children cumulated CPU time (s) 0.1
Current children cumulated vsize (KiB) 1468

[startup+0.514646 s]
/proc/loadavg: 0.91 0.97 0.99 3/77 625
/proc/meminfo: memFree=863536/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1468 CPUtime=0.51
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 576 0 0 0 51 0 0 0 21 0 1 0 174100280 1503232 276 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134567026 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 367 276 67 123 0 242 0
Current children cumulated CPU time (s) 0.51
Current children cumulated vsize (KiB) 1468

[startup+1.33476 s]
/proc/loadavg: 0.91 0.97 0.99 2/78 626
/proc/meminfo: memFree=862312/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1672 CPUtime=1.33
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 790 0 0 0 133 0 0 0 25 0 1 0 174100280 1712128 332 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134585134 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 418 332 72 123 0 293 0
Current children cumulated CPU time (s) 1.33
Current children cumulated vsize (KiB) 1672

[startup+2.97099 s]
/proc/loadavg: 0.91 0.97 0.99 2/78 626
/proc/meminfo: memFree=862184/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1672 CPUtime=2.96
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 790 0 0 0 296 0 0 0 25 0 1 0 174100280 1712128 332 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134537979 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 418 332 72 123 0 293 0
Current children cumulated CPU time (s) 2.96
Current children cumulated vsize (KiB) 1672

[startup+6.25046 s]
/proc/loadavg: 0.92 0.97 0.99 2/78 626
/proc/meminfo: memFree=862120/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1672 CPUtime=6.24
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 790 0 0 0 624 0 0 0 25 0 1 0 174100280 1712128 332 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134541823 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 418 332 72 123 0 293 0
Current children cumulated CPU time (s) 6.24
Current children cumulated vsize (KiB) 1672

[startup+12.7044 s]
/proc/loadavg: 0.93 0.97 0.99 2/78 626
/proc/meminfo: memFree=862056/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1672 CPUtime=12.69
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 790 0 0 0 1269 0 0 0 25 0 1 0 174100280 1712128 332 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134585127 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 418 332 72 123 0 293 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1672

[startup+25.5082 s]
/proc/loadavg: 0.94 0.97 0.99 2/78 626
/proc/meminfo: memFree=862056/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1672 CPUtime=25.49
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 790 0 0 0 2549 0 0 0 25 0 1 0 174100280 1712128 332 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134537979 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 418 332 72 123 0 293 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 1672

[startup+51.1168 s]
/proc/loadavg: 0.96 0.97 0.99 2/78 626
/proc/meminfo: memFree=861992/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1876 CPUtime=51.09
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 826 0 0 0 5109 0 0 0 25 0 1 0 174100280 1921024 368 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134585125 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 469 368 72 123 0 344 0
Current children cumulated CPU time (s) 51.09
Current children cumulated vsize (KiB) 1876

[startup+102.331 s]
/proc/loadavg: 1.02 0.99 0.99 2/78 626
/proc/meminfo: memFree=861864/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=1976 CPUtime=102.29
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 860 0 0 0 10229 0 0 0 25 0 1 0 174100280 2023424 402 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134537984 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 494 402 72 123 0 369 0
Current children cumulated CPU time (s) 102.29
Current children cumulated vsize (KiB) 1976

[startup+162.364 s]
/proc/loadavg: 1.04 1.00 1.00 2/78 626
/proc/meminfo: memFree=861672/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=2356 CPUtime=162.3
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 905 0 0 0 16230 0 0 0 25 0 1 0 174100280 2412544 447 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134538408 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 589 447 72 123 0 464 0
Current children cumulated CPU time (s) 162.3
Current children cumulated vsize (KiB) 2356

[startup+222.388 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 626
/proc/meminfo: memFree=861416/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=2696 CPUtime=222.31
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 962 0 0 0 22231 0 0 0 25 0 1 0 174100280 2760704 504 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134541779 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 674 504 72 123 0 549 0
Current children cumulated CPU time (s) 222.31
Current children cumulated vsize (KiB) 2696

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

[startup+222.9 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 626
/proc/meminfo: memFree=861416/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=2696 CPUtime=222.82
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 962 0 0 0 22282 0 0 0 25 0 1 0 174100280 2760704 504 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134585122 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 674 504 72 123 0 549 0
Current children cumulated CPU time (s) 222.82
Current children cumulated vsize (KiB) 2696

[startup+223.72 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 626
/proc/meminfo: memFree=861416/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=2696 CPUtime=223.64
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 963 0 0 0 22364 0 0 0 25 0 1 0 174100280 2760704 505 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134587542 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 674 505 72 123 0 549 0
Current children cumulated CPU time (s) 223.64
Current children cumulated vsize (KiB) 2696

[startup+224.54 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 626
/proc/meminfo: memFree=861352/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=2696 CPUtime=224.46
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 964 0 0 0 22446 0 0 0 25 0 1 0 174100280 2760704 506 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526935 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 674 506 72 123 0 549 0
Current children cumulated CPU time (s) 224.46
Current children cumulated vsize (KiB) 2696

[startup+224.949 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 626
/proc/meminfo: memFree=861352/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=2696 CPUtime=224.87
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 965 0 0 0 22487 0 0 0 25 0 1 0 174100280 2760704 507 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134526947 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 674 507 72 123 0 549 0
Current children cumulated CPU time (s) 224.87
Current children cumulated vsize (KiB) 2696

[startup+225.051 s]
/proc/loadavg: 1.01 1.00 1.00 2/78 626
/proc/meminfo: memFree=861352/2055920 swapFree=4146080/4192956
[pid=625] ppid=623 vsize=2696 CPUtime=224.97
/proc/625/stat : 625 (march_ks) R 623 625 32616 0 -1 4194304 965 0 0 0 22497 0 0 0 25 0 1 0 174100280 2760704 507 18446744073709551615 134512640 135019032 4294956624 18446744073709551615 134585120 0 0 4096 0 0 0 0 17 1 0 0
/proc/625/statm: 674 507 72 123 0 549 0
Current children cumulated CPU time (s) 224.97
Current children cumulated vsize (KiB) 2696

Child status: 10
Real time (s): 225.099
CPU time (s): 225.031
CPU user time (s): 225.024
CPU system time (s): 0.006998
CPU usage (%): 99.9695
Max. virtual memory (cumulated for all children) (KiB): 2696

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 225.024
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= 967
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= 8
involuntary context switches= 427

runsolver used 0.267959 second user time and 0.513921 second system time

The end

Launcher Data (download as text)

Begin job on node30 on Sun Feb 18 12:56:02 UTC 2007

IDJOB= 295288
IDBENCH= 19909
IDSOLVER= 111
FILE ID= node30/295288-1171803362

PBS_JOBID= 3839606

Free space on /tmp= 66562 MiB

SOLVER NAME= March KS 2007-02-08
BENCH NAME= HOME/pub/bench/SAT07/random/OnTreshold/7SAT/v55/unif-k7-r89-v55-c4895-S1214515938-10.SAT.shuffled.cnf
COMMAND LINE= /tmp/evaluation/295288-1171803362/march_ks /tmp/evaluation/295288-1171803362/instance-295288-1171803362.cnf            
RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node30/watcher-295288-1171803362 -o ROOT/results/node30/solver-295288-1171803362 -C 1200 -M 1800 --output-limit 1,15  /tmp/evaluation/295288-1171803362/march_ks /tmp/evaluation/295288-1171803362/instance-295288-1171803362.cnf            

META MD5SUM SOLVER= cd0143c15836d32fe9acb8d523a59b67
MD5SUM BENCH=  de03602edd8993d2cfb54584ba8c73c9

RANDOM SEED= 123104322

TIME LIMIT= 1200 seconds
MEMORY LIMIT= 1800 MiB

Linux node30.alineos.net 2.6.9-22.EL.rootsmp #1 SMP Mon Oct 3 08:59:52 CEST 2005 x86_64 x86_64 x86_64 GNU/Linux

/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		: 3000.270
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		: 3000.270
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:        864008 kB
Buffers:         42808 kB
Cached:        1033372 kB
SwapCached:      15288 kB
Active:         831288 kB
Inactive:       270828 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:        864008 kB
SwapTotal:     4192956 kB
SwapFree:      4146080 kB
Dirty:            2408 kB
Writeback:           0 kB
Mapped:          29768 kB
Slab:            75300 kB
Committed_AS:   585736 kB
PageTables:       1884 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= 66562 MiB

End job on node30 on Sun Feb 18 12:59:48 UTC 2007