Trace number 1517881

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 32.759 32.776

General information on the benchmark

NameRANDOM/MEDIUM/3SAT/UNKNOWN/380/
unif-k3-r4.25-v380-c1615-S502087726-095.cnf
MD5SUM19585c969548ec91e42795356f5c76b1
Bench CategoryRANDOM (random instances)
Best result obtained on this benchmarkUNSAT
Best CPU time to get the best result obtained on this benchmark32.759
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, 0 satisfied and 0 duplicate clauses
0.00/0.01	c preprocessing fase I completed:: there are now 380 free variables and 1615 clauses.
0.00/0.01	c stat :: sign balance is biased by 0.426
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 147 duplicate clauses
0.00/0.01	c resolvent_look() :: found 75 resolvents
0.00/0.01	c lessRedundantTransformation():: nothing to be done.
0.00/0.01	c transformTo3SAT():: you gave me 380 variables and 1690 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 1690 clauses.
0.00/0.01	c main():: clause / variable ratio: ( 1690 / 380 ) = 4.45
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 = 380
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 |****************************************************************| ( 0/14) NodeCount: 155
0.02/0.08	c |----------------------------------------------------------------|
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c |****************************************************************| ( 1/14) NodeCount: 1346
0.49/0.58	c |----------------------------------------------------------------|
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c |****************************************************************| ( 2/14) NodeCount: 5150
2.20/2.20	c |----------------------------------------------------------------|
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c |****************************************************************| ( 3/14) NodeCount: 14713
6.29/6.33	c |----------------------------------------------------------------|
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c |****************************************************************| ( 4/14) NodeCount: 29652
12.89/12.94	c |----------------------------------------------------------------|
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c |****************************************************************| ( 5/14) NodeCount: 45637
20.28/20.34	c |----------------------------------------------------------------|
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c |****************************************************************| ( 6/14) NodeCount: 58471
26.68/26.77	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| ( 7/14) NodeCount: 65581
30.68/30.71	c |----------------------------------------------------------------|
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c |****************************************************************| ( 8/14) NodeCount: 68324
32.28/32.31	c |----------------------------------------------------------------|
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c |****************************************************************| ( 9/14) NodeCount: 68968
32.68/32.71	c |----------------------------------------------------------------|
c |*
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c |****************************************************************| (10/14) NodeCount: 69058
32.68/32.77	c |----------------------------------------------------------------|
c |********
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c |****************
c |********************************
c |****************************************************************| (11/14) NodeCount: 69059
32.68/32.77	c |----------------------------------------------------------------|
c |
32.68/32.77	c
32.68/32.77	c main():: nodeCount: 69059
32.68/32.77	c main():: dead ends in main: 1212
32.68/32.77	c main():: lookAheadCount: 4723889
32.68/32.77	c main():: unitResolveCount: 725198
32.68/32.77	c main():: time=32.760000
32.68/32.77	c main():: necessary_assignments: 12794
32.68/32.77	c main():: bin_sat: 0, bin_unsat 0
32.68/32.77	c main():: doublelook: #: 277049, succes #: 201156
32.68/32.77	c main():: doublelook: overall 6.063 of all possible doublelooks executed
32.68/32.77	c main():: doublelook: succesrate: 72.607, average DL_trigger: 48.433
32.68/32.77	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-1517881-1238292427/watcher-1517881-1238292427 -o /tmp/evaluation-result-1517881-1238292427/solver-1517881-1238292427 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/march_hi HOME/instance-1517881-1238292427.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: 1.00 1.00 0.99 2/68 10044
/proc/meminfo: memFree=1301488/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=972 CPUtime=0
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 137 0 0 0 0 0 0 0 18 0 1 0 1101904313 995328 120 1992294400 134512640 135197378 4294956240 18446744073709551615 134535888 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 243 120 66 167 0 74 0

[startup+0.030148 s]
/proc/loadavg: 1.00 1.00 0.99 2/68 10044
/proc/meminfo: memFree=1301488/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=1536 CPUtime=0.02
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 236 0 0 0 2 0 0 0 18 0 1 0 1101904313 1572864 219 1992294400 134512640 135197378 4294956240 18446744073709551615 134525351 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 384 219 91 167 0 215 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 1536

[startup+0.101154 s]
/proc/loadavg: 1.00 1.00 0.99 2/68 10044
/proc/meminfo: memFree=1301488/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=1536 CPUtime=0.09
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 253 0 0 0 9 0 0 0 18 0 1 0 1101904313 1572864 236 1992294400 134512640 135197378 4294956240 18446744073709551615 134542433 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 384 236 91 167 0 215 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 1536

[startup+0.301175 s]
/proc/loadavg: 1.00 1.00 0.99 2/68 10044
/proc/meminfo: memFree=1301488/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=1668 CPUtime=0.29
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 264 0 0 0 29 0 0 0 19 0 1 0 1101904313 1708032 247 1992294400 134512640 135197378 4294956240 18446744073709551615 134572986 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 417 247 91 167 0 248 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 1668

[startup+0.701214 s]
/proc/loadavg: 1.00 1.00 0.99 2/68 10044
/proc/meminfo: memFree=1301488/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=1668 CPUtime=0.69
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 270 0 0 0 69 0 0 0 24 0 1 0 1101904313 1708032 253 1992294400 134512640 135197378 4294956240 18446744073709551615 134552369 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 417 253 91 167 0 248 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 1668

[startup+1.50129 s]
/proc/loadavg: 1.00 1.00 0.99 2/69 10045
/proc/meminfo: memFree=1300840/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=1668 CPUtime=1.49
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 281 0 0 0 149 0 0 0 25 0 1 0 1101904313 1708032 264 1992294400 134512640 135197378 4294956240 18446744073709551615 134539261 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 417 264 91 167 0 248 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 1668

[startup+3.10145 s]
/proc/loadavg: 1.00 1.00 0.99 2/69 10045
/proc/meminfo: memFree=1300648/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=1668 CPUtime=3.09
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 289 0 0 0 309 0 0 0 25 0 1 0 1101904313 1708032 272 1992294400 134512640 135197378 4294956240 18446744073709551615 134572875 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 417 272 91 167 0 248 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 1668

[startup+6.30177 s]
/proc/loadavg: 1.00 1.00 0.99 2/69 10045
/proc/meminfo: memFree=1300520/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=1844 CPUtime=6.29
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 306 0 0 0 629 0 0 0 25 0 1 0 1101904313 1888256 289 1992294400 134512640 135197378 4294956240 18446744073709551615 134525291 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 461 289 91 167 0 292 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 1844

[startup+12.7014 s]
/proc/loadavg: 1.00 1.00 0.99 2/69 10045
/proc/meminfo: memFree=1300400/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=1844 CPUtime=12.69
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 323 0 0 0 1269 0 0 0 25 0 1 0 1101904313 1888256 306 1992294400 134512640 135197378 4294956240 18446744073709551615 134552435 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 461 306 91 167 0 292 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 1844

[startup+25.5017 s]
/proc/loadavg: 1.00 1.00 0.99 2/69 10045
/proc/meminfo: memFree=1300080/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=2148 CPUtime=25.48
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 402 0 0 0 2548 0 0 0 25 0 1 0 1101904313 2199552 385 1992294400 134512640 135197378 4294956240 18446744073709551615 134539243 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 537 385 91 167 0 368 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 2148

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

[startup+28.702 s]
/proc/loadavg: 1.00 1.00 0.99 2/69 10045
/proc/meminfo: memFree=1300080/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=2300 CPUtime=28.68
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 417 0 0 0 2868 0 0 0 25 0 1 0 1101904313 2355200 400 1992294400 134512640 135197378 4294956240 18446744073709551615 134539323 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 575 400 91 167 0 406 0
Current children cumulated CPU time (s) 28.68
Current children cumulated vsize (KiB) 2300

[startup+30.3012 s]
/proc/loadavg: 1.00 1.00 0.99 2/69 10045
/proc/meminfo: memFree=1300016/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=2300 CPUtime=30.28
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 425 0 0 0 3028 0 0 0 25 0 1 0 1101904313 2355200 408 1992294400 134512640 135197378 4294956240 18446744073709551615 134539266 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 575 408 91 167 0 406 0
Current children cumulated CPU time (s) 30.28
Current children cumulated vsize (KiB) 2300

[startup+31.9063 s]
/proc/loadavg: 1.00 1.00 0.99 3/69 10045
/proc/meminfo: memFree=1300016/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=2300 CPUtime=31.89
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 434 0 0 0 3188 1 0 0 25 0 1 0 1101904313 2355200 417 1992294400 134512640 135197378 4294956240 18446744073709551615 134542050 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 575 417 91 167 0 406 0
Current children cumulated CPU time (s) 31.89
Current children cumulated vsize (KiB) 2300

[startup+32.3014 s]
/proc/loadavg: 1.00 1.00 0.99 3/69 10045
/proc/meminfo: memFree=1300016/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=2300 CPUtime=32.28
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 436 0 0 0 3227 1 0 0 25 0 1 0 1101904313 2355200 419 1992294400 134512640 135197378 4294956240 18446744073709551615 134605243 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 575 419 91 167 0 406 0
Current children cumulated CPU time (s) 32.28
Current children cumulated vsize (KiB) 2300

[startup+32.7014 s]
/proc/loadavg: 1.00 1.00 0.99 3/69 10045
/proc/meminfo: memFree=1300016/2055920 swapFree=4175244/4192956
[pid=10044] ppid=10042 vsize=2300 CPUtime=32.68
/proc/10044/stat : 10044 (march_hi) R 10042 10044 9309 0 -1 4194304 439 0 0 0 3267 1 0 0 25 0 1 0 1101904313 2355200 422 1992294400 134512640 135197378 4294956240 18446744073709551615 134525315 0 0 4096 0 0 0 0 17 1 0 0
/proc/10044/statm: 575 422 91 167 0 406 0
Current children cumulated CPU time (s) 32.68
Current children cumulated vsize (KiB) 2300

Child status: 20
Real time (s): 32.776
CPU time (s): 32.759
CPU user time (s): 32.747
CPU system time (s): 0.011998
CPU usage (%): 99.9481
Max. virtual memory (cumulated for all children) (KiB): 2300

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 32.747
system time used= 0.011998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 442
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= 3
involuntary context switches= 236

runsolver used 0.034994 second user time and 0.105983 second system time

The end

Launcher Data 

Begin job on node60 at 2009-03-29 04:07:07
IDJOB=1517881
IDBENCH=70633
IDSOLVER=521
FILE ID=node60/1517881-1238292427
PBS_JOBID= 9060999
Free space on /tmp= 66404 MiB

SOLVER NAME= march_hi hi
BENCH NAME= SAT09/RANDOM/MEDIUM/3SAT/UNKNOWN/380/unif-k3-r4.25-v380-c1615-S502087726-095.cnf
COMMAND LINE= HOME/march_hi BENCHNAME
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1517881-1238292427/watcher-1517881-1238292427 -o /tmp/evaluation-result-1517881-1238292427/solver-1517881-1238292427 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/march_hi HOME/instance-1517881-1238292427.cnf

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

MD5SUM BENCH= 19585c969548ec91e42795356f5c76b1
RANDOM SEED=901984229

node60.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		: 3000.202
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		: 3000.202
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:       1301968 kB
Buffers:         83224 kB
Cached:         582108 kB
SwapCached:      10996 kB
Active:         209808 kB
Inactive:       468544 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1301968 kB
SwapTotal:     4192956 kB
SwapFree:      4175244 kB
Dirty:             796 kB
Writeback:           0 kB
Mapped:          18376 kB
Slab:            61152 kB
Committed_AS:  3206612 kB
PageTables:       1712 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= 66400 MiB
End job on node60 at 2009-03-29 04:07:40