Trace number 455237

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 NameAnswerObjective functionCPU timeWall clock time
Pueblo 1.4OPT-6 66.9268 66.9664

General information on the benchmark

Namenormalized-PB07/OPT-SMALLINT-NLC/submittedPB07/
manquinho/bsg/normalized-bsg_50_25_1.opb
MD5SUMe0d3a2bf2cd2b7e4b27d7033a7686e76
Bench CategoryOPT-SMALLINT-NLC (optimisation, small integers, non linear constraints)
Best result obtained on this benchmarkOPT
Best value of the objective obtained on this benchmark-6
Best CPU time to get the best result obtained on this benchmark66.9268
Has Objective FunctionYES
SatisfiableYES
(Un)Satisfiability was provedYES
Best value of the objective function -6
Optimality of the best value was proved YES
Number of variables100
Total number of constraints151
Number of constraints which are clauses50
Number of constraints which are cardinality constraints (but not clauses)0
Number of constraints which are nor clauses,nor cardinality constraints101
Minimum length of a constraint2
Maximum length of a constraint100
Number of terms in the objective function 50
Biggest coefficient in the objective function 1
Number of bits for the biggest coefficient in the objective function 1
Sum of the numbers in the objective function 50
Number of bits of the sum of numbers in the objective function 6
Biggest number in a constraint 1
Number of bits of the biggest number in a constraint 1
Biggest sum of numbers in a constraint 100
Number of bits of the biggest sum of numbers7
Number of products (including duplicates)2996
Sum of products size (including duplicates)5992
Number of different products1498
Sum of products size2996

Quality of the solution as a function of time


Download the above graph as a PDF file / as an EPS file

Solver Data (download as text)

0.00/0.01	c Pueblo version 1.4 (September 2005)
0.00/0.01	c Developed @ University of Michigan, Ann Arbor, MI
0.00/0.01	c  by Hossein Sheini
0.02/0.07	c starting to Solve
0.02/0.07	c #variables read: 1598 - #constraints read: 3149
0.02/0.07	o 0
0.02/0.07	o 1
0.02/0.07	o 2
0.02/0.07	o 3
0.02/0.07	o 4
0.02/0.08	o 5
1.18/1.24	o 6
66.86/66.96	c optimum objective found = 6
66.86/66.96	c total time              : 66.93 s
66.86/66.96	s OPTIMUM FOUND
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66.86/66.96	v -x1142 -x1143 -x1144 -x1145 -x1146 -x1147 -x1148 -x1149 -x1150 -x1151 -x1152 -x1153 -x1154 -x1155 -x1156 -x1157 -x1158
66.86/66.96	v -x1159 -x1160 -x1161 -x1162 -x1163 -x1164 -x1165 -x1166 -x1167 -x1168 -x1169 -x1170 -x1171 -x1172 -x1173 -x1174 -x1175
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66.86/66.96	v -x1210 -x1211 -x1212 -x1213 -x1214 -x1215 -x1216 -x1217 -x1218 -x1219 -x1220 -x1221 -x1222 -x1223 -x1224 -x1225 -x1226
66.86/66.96	v -x1227 -x1228 -x1229 -x1230 -x1231 -x1232 -x1233 -x1234 -x1235 -x1236 -x1237 -x1238 -x1239 -x1240 -x1241 -x1242 -x1243
66.86/66.96	v -x1244 -x1245 -x1246 -x1247 -x1248 -x1249 -x1250 -x1251 -x1252 -x1253 -x1254 -x1255 -x1256 -x1257 -x1258 -x1259 -x1260
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66.86/66.96	v -x54 -x55 -x56 -x57 -x58 -x59 x60 -x61 -x62 -x63 x64 -x65 -x66 -x67 -x68 -x69 -x70 -x71 -x72 -x73 -x74 -x75 -x76 -x77 -x78 -x79
66.86/66.96	v -x80 -x81 -x82 -x83 -x84 x85 -x86 -x87 -x88 -x89 -x90 -x91 x92 -x93 -x94 -x95 -x96 x97 -x98 -x99 -x100

Verifier Data (download as text)

OK	-6

Conversion Script Data (download as text)

Linearizing /tmp/evaluation/455237-1178039748/instance-455237-1178039748.opb

Watcher Data (download as text)

runsolver version 3.2.3 (c) roussel@cril.univ-artois.fr

command line: runsolver --timestamp -w ROOT/results/node65/watcher-455237-1178039748 -o ROOT/results/node65/solver-455237-1178039748 -C 1800 -W 3600 -M 1800 --output-limit 1,15 Pueblo /tmp/evaluation/455237-1178039748/instance-455237-1178039748.opb 

Enforcing CPUTime limit (soft limit, will send SIGTERM then SIGKILL): 1800 seconds
Enforcing CPUTime limit (hard limit, will send SIGXCPU): 1830 seconds
Enforcing wall clock limit (soft limit, will send SIGTERM then SIGKILL): 3600 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: 0.93 0.98 0.99 3/64 30461
/proc/meminfo: memFree=1889264/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=1104 CPUtime=0
/proc/30461/stat : 30461 (Pueblo) D 30459 30461 30013 0 -1 4194304 55 0 0 0 0 0 0 0 18 0 1 0 279964442 1130496 39 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 5686052 0 2147483391 4096 0 18446744072099781622 0 0 17 1 0 0
/proc/30461/statm: 276 39 30 16 0 8 0

[startup+0.04432 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 30461
/proc/meminfo: memFree=1889264/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=2952 CPUtime=0.02
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 363 0 0 0 2 0 0 0 18 0 1 0 279964442 3022848 334 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134546743 0 0 4096 0 0 0 0 17 0 0 0
/proc/30461/statm: 738 334 199 16 0 177 0
Current children cumulated CPU time (s) 0.02
Current children cumulated vsize (KiB) 2952

[startup+0.101322 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 30461
/proc/meminfo: memFree=1889264/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=3808 CPUtime=0.08
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 578 0 0 0 8 0 0 0 18 0 1 0 279964442 3899392 549 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/30461/statm: 952 549 205 16 0 391 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 3808

[startup+0.301338 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 30461
/proc/meminfo: memFree=1889264/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=4072 CPUtime=0.28
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 638 0 0 0 28 0 0 0 19 0 1 0 279964442 4169728 609 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134528346 0 0 4096 0 0 0 0 17 0 0 0
/proc/30461/statm: 1018 609 205 16 0 457 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 4072

[startup+0.70137 s]
/proc/loadavg: 0.93 0.98 0.99 3/64 30461
/proc/meminfo: memFree=1889264/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=4316 CPUtime=0.67
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 731 0 0 0 67 0 0 0 23 0 1 0 279964442 4419584 702 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/30461/statm: 1079 702 205 16 0 518 0
Current children cumulated CPU time (s) 0.67
Current children cumulated vsize (KiB) 4316

[startup+1.50144 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1887016/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=4712 CPUtime=1.48
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 804 0 0 0 147 1 0 0 25 0 1 0 279964442 4825088 775 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 0 0 0
/proc/30461/statm: 1178 775 205 16 0 617 0
Current children cumulated CPU time (s) 1.48
Current children cumulated vsize (KiB) 4712

[startup+3.10158 s]
/proc/loadavg: 0.93 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1886440/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=5236 CPUtime=3.08
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 940 0 0 0 306 2 0 0 25 0 1 0 279964442 5361664 911 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134528267 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1309 911 205 16 0 748 0
Current children cumulated CPU time (s) 3.08
Current children cumulated vsize (KiB) 5236

[startup+6.30164 s]
/proc/loadavg: 0.93 0.98 0.99 3/65 30462
/proc/meminfo: memFree=1885864/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=5504 CPUtime=6.27
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1016 0 0 0 624 3 0 0 25 0 1 0 279964442 5636096 987 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1376 987 205 16 0 815 0
Current children cumulated CPU time (s) 6.27
Current children cumulated vsize (KiB) 5504

[startup+12.7012 s]
/proc/loadavg: 0.94 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1885552/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=5844 CPUtime=12.67
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1089 0 0 0 1261 6 0 0 25 0 1 0 279964442 5984256 1060 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1461 1060 205 16 0 900 0
Current children cumulated CPU time (s) 12.67
Current children cumulated vsize (KiB) 5844

[startup+25.5022 s]
/proc/loadavg: 0.95 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1885240/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=6312 CPUtime=25.47
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1203 0 0 0 2536 11 0 0 25 0 1 0 279964442 6463488 1174 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1578 1174 205 16 0 1017 0
Current children cumulated CPU time (s) 25.47
Current children cumulated vsize (KiB) 6312

[startup+51.1023 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1884920/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=6552 CPUtime=51.06
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1285 0 0 0 5085 21 0 0 25 0 1 0 279964442 6709248 1256 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1638 1256 205 16 0 1077 0
Current children cumulated CPU time (s) 51.06
Current children cumulated vsize (KiB) 6552

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

[startup+57.5019 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1884856/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=6816 CPUtime=57.45
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1324 0 0 0 5722 23 0 0 25 0 1 0 279964442 6979584 1295 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1704 1295 205 16 0 1143 0
Current children cumulated CPU time (s) 57.45
Current children cumulated vsize (KiB) 6816

[startup+63.9014 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1884792/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=6816 CPUtime=63.85
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1335 0 0 0 6359 26 0 0 25 0 1 0 279964442 6979584 1306 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1704 1306 205 16 0 1143 0
Current children cumulated CPU time (s) 63.85
Current children cumulated vsize (KiB) 6816

[startup+65.5015 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1884728/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=6936 CPUtime=65.45
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1361 0 0 0 6519 26 0 0 25 0 1 0 279964442 7102464 1332 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134527815 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1734 1332 205 16 0 1173 0
Current children cumulated CPU time (s) 65.45
Current children cumulated vsize (KiB) 6936

[startup+66.3016 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1884536/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=7068 CPUtime=66.26
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1396 0 0 0 6599 27 0 0 25 0 1 0 279964442 7237632 1367 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134520204 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1767 1367 205 16 0 1206 0
Current children cumulated CPU time (s) 66.26
Current children cumulated vsize (KiB) 7068

[startup+66.7016 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1884536/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=7068 CPUtime=66.66
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1396 0 0 0 6639 27 0 0 25 0 1 0 279964442 7237632 1367 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 4294960144 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1767 1367 205 16 0 1206 0
Current children cumulated CPU time (s) 66.66
Current children cumulated vsize (KiB) 7068

[startup+66.9017 s]
/proc/loadavg: 0.97 0.98 0.99 2/65 30462
/proc/meminfo: memFree=1884536/2055920 swapFree=4184032/4192956
[pid=30461] ppid=30459 vsize=7068 CPUtime=66.86
/proc/30461/stat : 30461 (Pueblo) R 30459 30461 30013 0 -1 4194304 1396 0 0 0 6659 27 0 0 25 0 1 0 279964442 7237632 1367 18446744073709551615 134512640 134579096 4294956704 18446744073709551615 134532706 0 0 4096 0 0 0 0 17 1 0 0
/proc/30461/statm: 1767 1367 205 16 0 1206 0
Current children cumulated CPU time (s) 66.86
Current children cumulated vsize (KiB) 7068

Child status: 30
Real time (s): 66.9664
CPU time (s): 66.9268
CPU user time (s): 66.6539
CPU system time (s): 0.272958
CPU usage (%): 99.9409
Max. virtual memory (cumulated for all children) (KiB): 7068

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 66.6539
system time used= 0.272958
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1403
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= 12
involuntary context switches= 118

runsolver used 0.055991 second user time and 0.137979 second system time

The end

Launcher Data (download as text)

Begin job on node65 on Tue May  1 17:15:48 UTC 2007

IDJOB= 455237
IDBENCH= 48250
IDSOLVER= 165
FILE ID= node65/455237-1178039748

PBS_JOBID= 4728452

Free space on /tmp= 66562 MiB

SOLVER NAME= Pueblo 1.4
BENCH NAME= HOME/pub/bench/PB07/normalized-PB07/OPT-SMALLINT-NLC/submittedPB07/manquinho/bsg/normalized-bsg_50_25_1.opb
COMMAND LINE= Pueblo /tmp/evaluation/455237-1178039748/instance-455237-1178039748.opb
CONVERSION COMMAND LINE= runsolver -w ROOT/results/node65/convwatcher-455237-1178039748 -o ROOT/results/node65/conversion-455237-1178039748 -C 600 -M 1800 PBconversionToLinear /tmp/evaluation/455237-1178039748/instance-455237-1178039748.opb
CONVERSION RUNSOLVER STATUS CODE= 0
CONVERSION STATUS CODE= 0

RUNSOLVER COMMAND LINE= runsolver  --timestamp  -w ROOT/results/node65/watcher-455237-1178039748 -o ROOT/results/node65/solver-455237-1178039748 -C 1800 -W 3600 -M 1800 --output-limit 1,15  Pueblo /tmp/evaluation/455237-1178039748/instance-455237-1178039748.opb

META MD5SUM SOLVER= 9ebec3e8d890fdeefad01654ad9b68b7
MD5SUM BENCH=  e0d3a2bf2cd2b7e4b27d7033a7686e76

RANDOM SEED= 784825951

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 1800 MiB

Linux node65.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		: 3000.245
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		: 3000.245
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:       1889672 kB
Buffers:         38888 kB
Cached:          54380 kB
SwapCached:       3020 kB
Active:          71612 kB
Inactive:        38980 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1889672 kB
SwapTotal:     4192956 kB
SwapFree:      4184032 kB
Dirty:            2560 kB
Writeback:           0 kB
Mapped:          21584 kB
Slab:            41704 kB
Committed_AS:  5242236 kB
PageTables:       1476 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 node65 on Tue May  1 17:16:55 UTC 2007