Trace number 1628168

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 35.1377 35.1473

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S1983754128-073.cnf
MD5SUMb11978b0ce5403208988a0dc3b9e35ce
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark35.1377
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, 9 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 378 free variables and 1606 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.477
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 172 duplicate clauses
0.00/0.01	c resolvent_look() :: found 117 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1723 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 1723 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1723 / 380 ) = 4.53
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 |****************************************************************| ( 0/16) NodeCount: 143
0.03/0.07	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/16) NodeCount: 750
0.29/0.32	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/16) NodeCount: 4286
1.79/1.84	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/16) NodeCount: 12938
5.50/5.53	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/16) NodeCount: 27784
12.09/12.19	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/16) NodeCount: 45323
20.59/20.65	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/16) NodeCount: 59227
28.08/28.13	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/16) NodeCount: 66972
32.68/32.75	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/16) NodeCount: 69897
34.58/34.61	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/16) NodeCount: 70574
34.98/35.08	c |----------------------------------------------------------------|
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c |****************************************************************| (10/16) NodeCount: 70652
35.08/35.14	c |----------------------------------------------------------------|
c |*
c |**
c |****
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c |****************
c |********************************
c |****************************************************************| (11/16) NodeCount: 70655
35.08/35.14	c |----------------------------------------------------------------|
c |
35.08/35.14	c
35.08/35.14	c main():: nodeCount: 70655
35.08/35.14	c main():: dead ends in main: 1523
35.08/35.14	c main():: lookAheadCount: 4806313
35.08/35.14	c main():: unitResolveCount: 909548
35.08/35.14	c main():: time=35.130000
35.08/35.14	c main():: necessary_assignments: 16385
35.08/35.14	c main():: bin_sat: 0, bin_unsat 0
35.08/35.14	c main():: doublelook: #: 280153, succes #: 202350
35.08/35.14	c main():: doublelook: overall 6.033 of all possible doublelooks executed
35.08/35.14	c main():: doublelook: succesrate: 72.228, average DL_trigger: 47.603
35.08/35.14	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-1628168-1240134650/watcher-1628168-1240134650 -o /tmp/evaluation-result-1628168-1240134650/solver-1628168-1240134650 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628168-1240134650.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: 1.00 1.00 1.00 3/64 25211
/proc/meminfo: memFree=1272688/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=972 CPUtime=0
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 41493073 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 243 120 66 167 0 74 0

[startup+0.038401 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25211
/proc/meminfo: memFree=1272688/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=1536 CPUtime=0.03
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 246 0 0 0 3 0 0 0 18 0 1 0 41493073 1572864 229 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 384 229 91 167 0 215 0
Current children cumulated CPU time (s) 0.03
Current children cumulated vsize (KiB) 1536

[startup+0.101395 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25211
/proc/meminfo: memFree=1272688/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=1536 CPUtime=0.09
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 256 0 0 0 9 0 0 0 18 0 1 0 41493073 1572864 239 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 384 239 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301412 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25211
/proc/meminfo: memFree=1272688/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=1536 CPUtime=0.29
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 263 0 0 0 29 0 0 0 19 0 1 0 41493073 1572864 246 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 384 246 91 167 0 215 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1536

[startup+0.701448 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 25211
/proc/meminfo: memFree=1272688/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=1668 CPUtime=0.69
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 274 0 0 0 69 0 0 0 23 0 1 0 41493073 1708032 257 1992294400 134512640 135197378 4294956240 18446744073709551615 134525322 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 417 257 91 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50152 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1271912/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=1668 CPUtime=1.49
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 284 0 0 0 149 0 0 0 25 0 1 0 41493073 1708032 267 1992294400 134512640 135197378 4294956240 18446744073709551615 134525333 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 417 267 91 167 0 248 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1668

[startup+3.10266 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1271720/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=1816 CPUtime=3.1
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 300 0 0 0 310 0 0 0 25 0 1 0 41493073 1859584 283 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 454 283 91 167 0 285 0
Current children cumulated CPU time (s) 3.1
Current children cumulated vsize (KiB) 1816

[startup+6.30194 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1271656/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=1952 CPUtime=6.29
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 336 0 0 0 629 0 0 0 25 0 1 0 41493073 1998848 319 1992294400 134512640 135197378 4294956240 18446744073709551615 134541916 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 488 319 91 167 0 319 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1952

[startup+12.7015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1271344/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=2120 CPUtime=12.69
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 364 0 0 0 1269 0 0 0 25 0 1 0 41493073 2170880 347 1992294400 134512640 135197378 4294956240 18446744073709551615 134539309 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 530 347 91 167 0 361 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 2120

[startup+25.5016 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1270896/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=2500 CPUtime=25.48
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 469 0 0 0 2548 0 0 0 25 0 1 0 41493073 2560000 452 1992294400 134512640 135197378 4294956240 18446744073709551615 134593933 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 625 452 91 167 0 456 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 2500

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

[startup+31.9052 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1270640/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=3020 CPUtime=31.88
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 544 0 0 0 3188 0 0 0 25 0 1 0 41493073 3092480 527 1992294400 134512640 135197378 4294956240 18446744073709551615 134552619 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 755 527 91 167 0 586 0
Current children cumulated CPU time (s) 31.88
Current children cumulated vsize (KiB) 3020

[startup+33.5013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1270640/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=3020 CPUtime=33.48
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 557 0 0 0 3348 0 0 0 25 0 1 0 41493073 3092480 540 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 755 540 91 167 0 586 0
Current children cumulated CPU time (s) 33.48
Current children cumulated vsize (KiB) 3020

[startup+34.3014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1270576/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=3020 CPUtime=34.28
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 565 0 0 0 3428 0 0 0 25 0 1 0 41493073 3092480 548 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 755 548 91 167 0 586 0
Current children cumulated CPU time (s) 34.28
Current children cumulated vsize (KiB) 3020

[startup+34.7014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1270576/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=3020 CPUtime=34.68
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 568 0 0 0 3468 0 0 0 25 0 1 0 41493073 3092480 551 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 755 551 91 167 0 586 0
Current children cumulated CPU time (s) 34.68
Current children cumulated vsize (KiB) 3020

[startup+35.1015 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 25212
/proc/meminfo: memFree=1270512/2055920 swapFree=4192956/4192956
[pid=25211] ppid=25209 vsize=3020 CPUtime=35.08
/proc/25211/stat : 25211 (march_hi) R 25209 25211 25055 0 -1 4194304 572 0 0 0 3508 0 0 0 25 0 1 0 41493073 3092480 555 1992294400 134512640 135197378 4294956240 18446744073709551615 134552521 0 0 4096 0 0 0 0 17 1 0 0
/proc/25211/statm: 755 555 91 167 0 586 0
Current children cumulated CPU time (s) 35.08
Current children cumulated vsize (KiB) 3020

Child status: 20
Real time (s): 35.1473
CPU time (s): 35.1377
CPU user time (s): 35.1277
CPU system time (s): 0.009998
CPU usage (%): 99.9726
Max. virtual memory (cumulated for all children) (KiB): 3020

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 35.1277
system time used= 0.009998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 575
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= 99

runsolver used 0.034994 second user time and 0.085986 second system time

The end

Launcher Data 

Begin job on node50 at 2009-04-19 11:50:50
IDJOB=1628168
IDBENCH=70624
IDSOLVER=583
FILE ID=node50/1628168-1240134650
PBS_JOBID= 9157845
Free space on /tmp= 66416 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S1983754128-073.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628168-1240134650/watcher-1628168-1240134650 -o /tmp/evaluation-result-1628168-1240134650/solver-1628168-1240134650 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628168-1240134650.cnf

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

MD5SUM BENCH= b11978b0ce5403208988a0dc3b9e35ce
RANDOM SEED=1401884616

node50.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:       1273168 kB
Buffers:         83380 kB
Cached:         623140 kB
SwapCached:          0 kB
Active:         263008 kB
Inactive:       457400 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1273168 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          23696 kB
Slab:            48380 kB
Committed_AS:   184904 kB
PageTables:       1448 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= 66416 MiB
End job on node50 at 2009-04-19 11:51:26