Trace number 1628119

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 53.4249 53.4418

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/400/
unif-k3-r4.25-v400-c1700-S104085281-076.cnf
MD5SUM5ab9251cccb4c72968393b6f409a56b6
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark53.4249
Satisfiable
(Un)Satisfiability was proved
Number of variables400
Number of clauses1700
Sum of the clauses size5100
Maximum clause length3
Minimum clause length3
Number of clauses of size 10
Number of clauses of size 20
Number of clauses of size 31700
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 400 variables and 1700 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, 4 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 399 free variables and 1696 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.486
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 200 duplicate clauses
0.00/0.01	c resolvent_look() :: found 87 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 400 variables and 1783 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 400 variabels and 1783 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1783 / 400 ) = 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 = 399
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 |********************************
c |****************************************************************| ( 0/14) NodeCount: 219
0.09/0.10	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/14) NodeCount: 2306
0.89/0.95	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 10780
4.49/4.50	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/14) NodeCount: 29325
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c |****************************************************************| ( 4/14) NodeCount: 57393
24.39/24.40	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 84960
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c |****************************************************************| ( 6/14) NodeCount: 105541
45.78/45.89	c |----------------------------------------------------------------|
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c |****************************************************************| ( 7/14) NodeCount: 115687
50.88/50.95	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/14) NodeCount: 119069
52.78/52.84	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 119868
53.27/53.32	c |----------------------------------------------------------------|
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c |****************************************************************| (10/14) NodeCount: 120033
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c |****************************************************************| (11/14) NodeCount: 120063
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c |****************************************************************| (12/14) NodeCount: 120068
53.37/53.44	c |----------------------------------------------------------------|
c |
53.37/53.44	c
53.37/53.44	c main():: nodeCount: 120068
53.37/53.44	c main():: dead ends in main: 1789
53.37/53.44	c main():: lookAheadCount: 7880626
53.37/53.44	c main():: unitResolveCount: 1213636
53.37/53.44	c main():: time=53.420000
53.37/53.44	c main():: necessary_assignments: 22082
53.37/53.44	c main():: bin_sat: 0, bin_unsat 0
53.37/53.44	c main():: doublelook: #: 475052, succes #: 344426
53.37/53.44	c main():: doublelook: overall 6.239 of all possible doublelooks executed
53.37/53.44	c main():: doublelook: succesrate: 72.503, average DL_trigger: 50.276
53.37/53.44	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-1628119-1240116739/watcher-1628119-1240116739 -o /tmp/evaluation-result-1628119-1240116739/solver-1628119-1240116739 -C 5000 -W 6000 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1628119-1240116739.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 24191
/proc/meminfo: memFree=1135424/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=976 CPUtime=0
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 138 0 0 0 0 0 0 0 18 0 1 0 39700031 999424 121 1992294400 134512640 135197378 4294956240 18446744073709551615 134697414 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 244 121 66 167 0 75 0

[startup+0.0473499 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 24191
/proc/meminfo: memFree=1135424/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=1556 CPUtime=0.04
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 248 0 0 0 4 0 0 0 18 0 1 0 39700031 1593344 231 1992294400 134512640 135197378 4294956240 18446744073709551615 134552773 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 389 231 91 167 0 220 0
Current children cumulated CPU time (s) 0.04
Current children cumulated vsize (KiB) 1556

[startup+0.101355 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 24191
/proc/meminfo: memFree=1135424/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=1556 CPUtime=0.09
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 254 0 0 0 9 0 0 0 18 0 1 0 39700031 1593344 237 1992294400 134512640 135197378 4294956240 18446744073709551615 134539297 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 389 237 91 167 0 220 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1556

[startup+0.301378 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 24191
/proc/meminfo: memFree=1135424/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=1688 CPUtime=0.29
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 265 0 0 0 29 0 0 0 19 0 1 0 39700031 1728512 248 1992294400 134512640 135197378 4294956240 18446744073709551615 134552743 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 422 248 91 167 0 253 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1688

[startup+0.701423 s]
/proc/loadavg: 1.00 1.00 1.00 3/64 24191
/proc/meminfo: memFree=1135424/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=1688 CPUtime=0.69
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 275 0 0 0 69 0 0 0 23 0 1 0 39700031 1728512 258 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 422 258 91 167 0 253 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1688

[startup+1.50151 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1134648/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=1688 CPUtime=1.49
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 283 0 0 0 149 0 0 0 25 0 1 0 39700031 1728512 266 1992294400 134512640 135197378 4294956240 18446744073709551615 134525420 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 422 266 91 167 0 253 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1688

[startup+3.1017 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1134456/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=1688 CPUtime=3.09
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 293 0 0 0 309 0 0 0 25 0 1 0 39700031 1728512 276 1992294400 134512640 135197378 4294956240 18446744073709551615 134541210 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 422 276 91 167 0 253 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1688

[startup+6.30106 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1134392/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=1832 CPUtime=6.29
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 302 0 0 0 629 0 0 0 25 0 1 0 39700031 1875968 285 1992294400 134512640 135197378 4294956240 18446744073709551615 134525296 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 458 285 91 167 0 289 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1832

[startup+12.7018 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1134264/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=1832 CPUtime=12.69
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 320 0 0 0 1269 0 0 0 25 0 1 0 39700031 1875968 303 1992294400 134512640 135197378 4294956240 18446744073709551615 134541960 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 458 303 91 167 0 289 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1832

[startup+25.5012 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1134072/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=2036 CPUtime=25.49
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 364 0 0 0 2549 0 0 0 25 0 1 0 39700031 2084864 347 1992294400 134512640 135197378 4294956240 18446744073709551615 134597712 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 509 347 91 167 0 340 0
Current children cumulated CPU time (s) 25.49
Current children cumulated vsize (KiB) 2036

[startup+51.1011 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1133816/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=2288 CPUtime=51.08
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 435 0 0 0 5108 0 0 0 25 0 1 0 39700031 2342912 418 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 572 418 91 167 0 403 0
Current children cumulated CPU time (s) 51.08
Current children cumulated vsize (KiB) 2288

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

[startup+52.7013 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1133752/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=2516 CPUtime=52.68
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 443 0 0 0 5268 0 0 0 25 0 1 0 39700031 2576384 426 1992294400 134512640 135197378 4294956240 18446744073709551615 134542026 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 629 426 91 167 0 460 0
Current children cumulated CPU time (s) 52.68
Current children cumulated vsize (KiB) 2516

[startup+53.1014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1133752/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=2516 CPUtime=53.07
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 445 0 0 0 5307 0 0 0 25 0 1 0 39700031 2576384 428 1992294400 134512640 135197378 4294956240 18446744073709551615 134539253 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 629 428 91 167 0 460 0
Current children cumulated CPU time (s) 53.07
Current children cumulated vsize (KiB) 2516

[startup+53.3014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1133752/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=2516 CPUtime=53.27
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 447 0 0 0 5327 0 0 0 25 0 1 0 39700031 2576384 430 1992294400 134512640 135197378 4294956240 18446744073709551615 134605243 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 629 430 91 167 0 460 0
Current children cumulated CPU time (s) 53.27
Current children cumulated vsize (KiB) 2516

[startup+53.4014 s]
/proc/loadavg: 1.00 1.00 1.00 2/65 24192
/proc/meminfo: memFree=1133752/2055920 swapFree=4192956/4192956
[pid=24191] ppid=24189 vsize=2516 CPUtime=53.37
/proc/24191/stat : 24191 (march_hi) R 24189 24191 21465 0 -1 4194304 447 0 0 0 5337 0 0 0 25 0 1 0 39700031 2576384 430 1992294400 134512640 135197378 4294956240 18446744073709551615 134552773 0 0 4096 0 0 0 0 17 1 0 0
/proc/24191/statm: 629 430 91 167 0 460 0
Current children cumulated CPU time (s) 53.37
Current children cumulated vsize (KiB) 2516

Child status: 20
Real time (s): 53.4418
CPU time (s): 53.4249
CPU user time (s): 53.4179
CPU system time (s): 0.006998
CPU usage (%): 99.9683
Max. virtual memory (cumulated for all children) (KiB): 2516

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 53.4179
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= 450
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= 309

runsolver used 0.051992 second user time and 0.131979 second system time

The end

Launcher Data 

Begin job on node63 at 2009-04-19 06:52:19
IDJOB=1628119
IDBENCH=70575
IDSOLVER=583
FILE ID=node63/1628119-1240116739
PBS_JOBID= 9157739
Free space on /tmp= 66412 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/400/unif-k3-r4.25-v400-c1700-S104085281-076.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1628119-1240116739/watcher-1628119-1240116739 -o /tmp/evaluation-result-1628119-1240116739/solver-1628119-1240116739 -C 5000 -W 6000 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1628119-1240116739.cnf

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

MD5SUM BENCH= 5ab9251cccb4c72968393b6f409a56b6
RANDOM SEED=358601473

node63.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		: 3000.236
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		: 3000.236
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:       1135840 kB
Buffers:         86112 kB
Cached:         732880 kB
SwapCached:          0 kB
Active:         328144 kB
Inactive:       505772 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1135840 kB
SwapTotal:     4192956 kB
SwapFree:      4192956 kB
Dirty:             804 kB
Writeback:           0 kB
Mapped:          24708 kB
Slab:            71944 kB
Committed_AS:   153708 kB
PageTables:       1448 kB
VmallocTotal: 536870911 kB
VmallocUsed:    264960 kB
VmallocChunk: 536605679 kB
HugePages_Total:     0
HugePages_Free:      0
Hugepagesize:     2048 kB

Free space on /tmp at the end= 66412 MiB
End job on node63 at 2009-04-19 06:53:12