Trace number 2080144

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
Choco2.1.1 2009-06-10SAT 2.49562 2.54107

DiagnosticValue
CHECKS0
NODES620

General information on the benchmark

Namecsp/radar-8-24-3-2/
normalized-radar-8-24-3-2-38.xml
MD5SUM5852c4bca81ea957ce36afe5eda297db
Bench CategoryN-ARY-INT (n-ary constraints in intension)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark0.040993
Satisfiable
(Un)Satisfiability was proved
Number of variables144
Number of constraints64
Maximum constraint arity17
Maximum domain size4
Number of constraints which are defined in extension0
Number of constraints which are defined in intension64
Global constraints used (with number of constraints)

Solver Data 

2.46/2.51	s SATISFIABLE
2.46/2.51	v 1 2 0 2 0 0 2 1 1 0 3 2 3 2 3 2 1 3 1 0 0 2 1 3 2 1 0 1 0 2 1 0 1 0 0 0 3 0 1 0 2 1 0 0 2 0 1 2 1 3 0 0 2 0 1 1 0 3 3 1 0 0 1 3 3 1 3 3 3 1 1 1 0 1 0 0 3 0 0 1 0 0 1 1 3 0 3 1 1 0 1 1 0 2 1 0 0 0 2 3 0 0 2 0 1 3 0 1 1 3 0 1 3 1 2 3 2 3 0 2 0 0 2 0 3 0 0 2 1 0 3 0 3 1 2 1 1 2 1 2 0 3 1 2 
2.46/2.51	d AC 32
2.46/2.51	d RUNTIME 2.397
2.46/2.51	d NODES 620
2.46/2.51	d NODES/s 259
2.46/2.51	d BACKTRACKS 405
2.46/2.51	d BACKTRACKS/s 169
2.46/2.51	d CHECKS 0
2.46/2.51	d CHECKS/s 0
2.46/2.51	c SAT 2.397 TIME      620 NDS    411 PARSTIME      557 BUILDPB       1429 RES       true RESTART       1 HEURISTIC       true RANDVAL

Verifier Data 

OK

Watcher Data 

runsolver version 3.2.9 (svn:492) (c) roussel@cril.univ-artois.fr

command line: BIN/runsolver --timestamp -w /tmp/evaluation-result-2080144-1247369265/watcher-2080144-1247369265 -o /tmp/evaluation-result-2080144-1247369265/solver-2080144-1247369265 -C 1800 -W 2000 -M 900 java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file HOME/instance-2080144-1247369265.xml -h 1 -randval true -ac 32 -rest true -rb 10 -rg 1.3 -saclim 60 -s true -verb 0 -seed 11041979 

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): 2000 seconds
Enforcing VSIZE limit (soft limit, will send SIGTERM then SIGKILL): 921600 KiB
Enforcing VSIZE limit (hard limit, stack expansion will fail with SIGSEGV, brk() and mmap() will return ENOMEM): 972800 KiB
Current StackSize limit: 10240 KiB


[startup+0 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 26664
/proc/meminfo: memFree=1009616/2055920 swapFree=4192812/4192956
[pid=26664] ppid=26662 vsize=18576 CPUtime=0
/proc/26664/stat : 26664 (runsolver) R 26662 26664 25785 0 -1 4194368 16 0 0 0 0 0 0 0 19 0 1 0 23617767 19021824 284 996147200 4194304 4302564 548682068192 18446744073709551615 264519609639 0 2147483391 4096 24578 0 0 0 17 1 0 0
/proc/26664/statm: 4644 284 249 26 0 2626 0

[startup+0.0679591 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 26664
/proc/meminfo: memFree=1009616/2055920 swapFree=4192812/4192956
[pid=26664] ppid=26662 vsize=862208 CPUtime=0.05
/proc/26664/stat : 26664 (java) S 26662 26664 25785 0 -1 0 2863 0 1 0 4 1 0 0 18 0 9 0 23617767 882900992 2381 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26664/statm: 215552 2381 1148 9 0 210421 0
Current children cumulated CPU time (s) 0.05
Current children cumulated vsize (KiB) 862208

[startup+0.102967 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 26664
/proc/meminfo: memFree=1009616/2055920 swapFree=4192812/4192956
[pid=26664] ppid=26662 vsize=864080 CPUtime=0.08
/proc/26664/stat : 26664 (java) S 26662 26664 25785 0 -1 0 3788 0 1 0 7 1 0 0 18 0 9 0 23617767 884817920 3251 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26664/statm: 216020 3251 1719 9 0 210488 0
Current children cumulated CPU time (s) 0.08
Current children cumulated vsize (KiB) 864080

[startup+0.301988 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 26664
/proc/meminfo: memFree=1009616/2055920 swapFree=4192812/4192956
[pid=26664] ppid=26662 vsize=864972 CPUtime=0.28
/proc/26664/stat : 26664 (java) S 26662 26664 25785 0 -1 0 4874 0 1 0 26 2 0 0 18 0 9 0 23617767 885731328 4290 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26664/statm: 216243 4290 1881 9 0 210711 0
Current children cumulated CPU time (s) 0.28
Current children cumulated vsize (KiB) 864972

[startup+0.701043 s]
/proc/loadavg: 2.00 2.00 2.00 3/76 26664
/proc/meminfo: memFree=1009616/2055920 swapFree=4192812/4192956
[pid=26664] ppid=26662 vsize=865068 CPUtime=0.68
/proc/26664/stat : 26664 (java) S 26662 26664 25785 0 -1 0 8632 0 1 0 63 5 0 0 18 0 9 0 23617767 885829632 8028 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26664/statm: 216267 8028 1943 9 0 210735 0
Current children cumulated CPU time (s) 0.68
Current children cumulated vsize (KiB) 865068

[startup+1.50215 s]
/proc/loadavg: 2.00 2.00 2.00 3/85 26673
/proc/meminfo: memFree=974856/2055920 swapFree=4192812/4192956
[pid=26664] ppid=26662 vsize=865200 CPUtime=1.47
/proc/26664/stat : 26664 (java) S 26662 26664 25785 0 -1 0 13195 0 1 0 138 9 0 0 18 0 9 0 23617767 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26664/statm: 216300 12575 1970 9 0 210768 0
[pid=26664/tid=26666] ppid=26662 vsize=865200 CPUtime=1.16
/proc/26664/task/26666/stat : 26666 (java) R 26662 26664 25785 0 -1 64 11846 0 1 0 108 8 0 0 25 0 9 0 23617769 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4127036037 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26667] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26667/stat : 26667 (java) S 26662 26664 25785 0 -1 64 2 0 0 0 0 0 0 0 16 0 9 0 23617770 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26668] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26668/stat : 26668 (java) S 26662 26664 25785 0 -1 64 10 0 0 0 0 0 0 0 19 0 9 0 23617770 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26669] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26669/stat : 26669 (java) S 26662 26664 25785 0 -1 64 4 0 0 0 0 0 0 0 20 0 9 0 23617771 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26670] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26670/stat : 26670 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 18 0 9 0 23617773 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26671] ppid=26662 vsize=865200 CPUtime=0.29
/proc/26664/task/26671/stat : 26671 (java) S 26662 26664 25785 0 -1 64 620 0 0 0 29 0 0 0 15 0 9 0 23617773 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26672] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26672/stat : 26672 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 19 0 9 0 23617773 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26673] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26673/stat : 26673 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 15 0 9 0 23617773 885964800 12575 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 1.47
Current children cumulated vsize (KiB) 865200

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

[startup+2.30226 s]
/proc/loadavg: 2.00 2.00 2.00 4/85 26673
/proc/meminfo: memFree=953032/2055920 swapFree=4192812/4192956
[pid=26664] ppid=26662 vsize=865200 CPUtime=2.26
/proc/26664/stat : 26664 (java) S 26662 26664 25785 0 -1 0 17876 0 1 0 213 13 0 0 18 0 9 0 23617767 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26664/statm: 216300 17252 1982 9 0 210768 0
[pid=26664/tid=26666] ppid=26662 vsize=865200 CPUtime=1.89
/proc/26664/task/26666/stat : 26666 (java) R 26662 26664 25785 0 -1 64 14817 0 1 0 179 10 0 0 25 0 9 0 23617769 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 102337840 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26667] ppid=26662 vsize=865200 CPUtime=0.04
/proc/26664/task/26667/stat : 26667 (java) S 26662 26664 25785 0 -1 64 1698 0 0 0 3 1 0 0 16 0 9 0 23617770 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26668] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26668/stat : 26668 (java) S 26662 26664 25785 0 -1 64 16 0 0 0 0 0 0 0 16 0 9 0 23617770 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26669] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26669/stat : 26669 (java) S 26662 26664 25785 0 -1 64 6 0 0 0 0 0 0 0 16 0 9 0 23617771 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26670] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26670/stat : 26670 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 18 0 9 0 23617773 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26671] ppid=26662 vsize=865200 CPUtime=0.31
/proc/26664/task/26671/stat : 26671 (java) S 26662 26664 25785 0 -1 64 626 0 0 0 30 1 0 0 16 0 9 0 23617773 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26672] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26672/stat : 26672 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 19 0 9 0 23617773 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26673] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26673/stat : 26673 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 15 0 9 0 23617773 885964800 17252 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 2.26
Current children cumulated vsize (KiB) 865200

[startup+2.50128 s]
/proc/loadavg: 2.00 2.00 2.00 4/85 26673
/proc/meminfo: memFree=953032/2055920 swapFree=4192812/4192956
[pid=26664] ppid=26662 vsize=865200 CPUtime=2.46
/proc/26664/stat : 26664 (java) S 26662 26664 25785 0 -1 0 17877 0 1 0 233 13 0 0 18 0 9 0 23617767 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 18446744073709551615 0 0 17 1 0 0
/proc/26664/statm: 216300 17253 1982 9 0 210768 0
[pid=26664/tid=26666] ppid=26662 vsize=865200 CPUtime=2.08
/proc/26664/task/26666/stat : 26666 (java) R 26662 26664 25785 0 -1 64 14817 0 1 0 198 10 0 0 25 0 9 0 23617769 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4126334487 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26667] ppid=26662 vsize=865200 CPUtime=0.04
/proc/26664/task/26667/stat : 26667 (java) S 26662 26664 25785 0 -1 64 1698 0 0 0 3 1 0 0 16 0 9 0 23617770 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 0 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26668] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26668/stat : 26668 (java) S 26662 26664 25785 0 -1 64 16 0 0 0 0 0 0 0 16 0 9 0 23617770 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26669] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26669/stat : 26669 (java) S 26662 26664 25785 0 -1 64 6 0 0 0 0 0 0 0 16 0 9 0 23617771 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26670] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26670/stat : 26670 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 18 0 9 0 23617773 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26671] ppid=26662 vsize=865200 CPUtime=0.31
/proc/26664/task/26671/stat : 26671 (java) S 26662 26664 25785 0 -1 64 627 0 0 0 30 1 0 0 15 0 9 0 23617773 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26672] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26672/stat : 26672 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 19 0 9 0 23617773 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
[pid=26664/tid=26673] ppid=26662 vsize=865200 CPUtime=0
/proc/26664/task/26673/stat : 26673 (java) S 26662 26664 25785 0 -1 64 1 0 0 0 0 0 0 0 15 0 9 0 23617773 885964800 17253 996147200 134512640 134550932 4294955840 18446744073709551615 4294960144 0 4 0 16800975 0 0 0 -1 1 0 0
Current children cumulated CPU time (s) 2.46
Current children cumulated vsize (KiB) 865200

Child status: 0
Real time (s): 2.54107
CPU time (s): 2.49562
CPU user time (s): 2.34964
CPU system time (s): 0.145977
CPU usage (%): 98.2112
Max. virtual memory (cumulated for all children) (KiB): 865200

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 2.34964
system time used= 0.145977
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 17899
page faults= 1
swaps= 0
block input operations= 0
block output operations= 0
messages sent= 0
messages received= 0
signals received= 0
voluntary context switches= 1880
involuntary context switches= 1879

runsolver used 0.004999 second user time and 0.015997 second system time

The end

Launcher Data 

Begin job on node40 at 2009-07-12 05:27:45
IDJOB=2080144
IDBENCH=57013
IDSOLVER=737
FILE ID=node40/2080144-1247369265
PBS_JOBID= 9507130
Free space on /tmp= 66216 MiB

SOLVER NAME= Choco2.1.1 2009-06-10
BENCH NAME= CPAI08/csp/radar-8-24-3-2/normalized-radar-8-24-3-2-38.xml
COMMAND LINE= java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file BENCHNAME -h 1 -randval true -ac 32 -rest true -rb 10 -rg 1.3 -saclim 60 -s true -verb 0 -seed 11041979
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-2080144-1247369265/watcher-2080144-1247369265 -o /tmp/evaluation-result-2080144-1247369265/solver-2080144-1247369265 -C 1800 -W 2000 -M 900  java -Xms700M -Xmx700M -jar HOME/choco-2.1.1.jar -file HOME/instance-2080144-1247369265.xml -h 1 -randval true -ac 32 -rest true -rb 10 -rg 1.3 -saclim 60 -s true -verb 0 -seed 11041979

TIME LIMIT= 1800 seconds
MEMORY LIMIT= 900 MiB
MAX NB THREAD= 0

MD5SUM BENCH= 5852c4bca81ea957ce36afe5eda297db
RANDOM SEED=2010864526

node40.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		: 3000.213
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		: 3000.213
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:       1010096 kB
Buffers:         82340 kB
Cached:         806420 kB
SwapCached:          0 kB
Active:         323116 kB
Inactive:       643912 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1010096 kB
SwapTotal:     4192956 kB
SwapFree:      4192812 kB
Dirty:            2564 kB
Writeback:           0 kB
Mapped:          89636 kB
Slab:            63684 kB
Committed_AS:   258160 kB
PageTables:       2024 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= 66216 MiB
End job on node40 at 2009-07-12 05:27:47