Trace number 1561691

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
iPAWS 2009-03-22SAT 311.749 311.859

General information on the benchmark

NameCRAFTED/edgematching/
explicit/em_8_4_5_exp.cnf
MD5SUM8074a7bc3c1695dbe8e033b31e3d3feb
Bench CategoryCRAFTED (crafted instances)
Best result obtained on this benchmarkSAT
Best CPU time to get the best result obtained on this benchmark14.8357
Satisfiable
(Un)Satisfiability was proved
Number of variables2420
Number of clauses51668
Sum of the clauses size133444
Maximum clause length36
Minimum clause length2
Number of clauses of size 10
Number of clauses of size 232492
Number of clauses of size 313968
Number of clauses of size 42628
Number of clauses of size 52460
Number of clauses of size over 5120

Solver Data 

311.68/311.85	s SATISFIABLE
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311.68/311.85	c input file instance-1561691-1238768271.cnf, flips 58340297

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-1561691-1238768271/watcher-1561691-1238768271 -o /tmp/evaluation-result-1561691-1238768271/solver-1561691-1238768271 -C 1200 -W 1800 -M 1800 --output-limit 1,15 HOME/iPAWS HOME/instance-1561691-1238768271.cnf 591662615 

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: 0.84 0.95 0.98 3/64 26467
/proc/meminfo: memFree=1809504/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=0
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 486 0 0 0 0 0 0 0 18 0 1 0 1149488974 343977984 470 1992294400 134512640 135114423 4294956224 18446744073709551615 134533972 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 470 54 146 0 83831 0

[startup+0.104472 s]
/proc/loadavg: 0.84 0.95 0.98 3/64 26467
/proc/meminfo: memFree=1809504/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=0.09
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1753 0 0 0 9 0 0 0 18 0 1 0 1149488974 343977984 1737 1992294400 134512640 135114423 4294956224 18446744073709551615 134547394 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1737 58 146 0 83831 0
Current children cumulated CPU time (s) 0.09
Current children cumulated vsize (KiB) 335916

[startup+0.201489 s]
/proc/loadavg: 0.84 0.95 0.98 3/64 26467
/proc/meminfo: memFree=1809504/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=0.19
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1814 0 0 0 19 0 0 0 18 0 1 0 1149488974 343977984 1798 1992294400 134512640 135114423 4294956224 18446744073709551615 134515504 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1798 58 146 0 83831 0
Current children cumulated CPU time (s) 0.19
Current children cumulated vsize (KiB) 335916

[startup+0.301505 s]
/proc/loadavg: 0.84 0.95 0.98 3/64 26467
/proc/meminfo: memFree=1809504/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=0.29
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1814 0 0 0 29 0 0 0 19 0 1 0 1149488974 343977984 1798 1992294400 134512640 135114423 4294956224 18446744073709551615 134515629 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1798 58 146 0 83831 0
Current children cumulated CPU time (s) 0.29
Current children cumulated vsize (KiB) 335916

[startup+0.701575 s]
/proc/loadavg: 0.84 0.95 0.98 3/64 26467
/proc/meminfo: memFree=1809504/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=0.69
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 69 0 0 0 23 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134546146 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 0.69
Current children cumulated vsize (KiB) 335916

[startup+1.50171 s]
/proc/loadavg: 0.84 0.95 0.98 2/65 26468
/proc/meminfo: memFree=1802392/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=1.49
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 149 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134515597 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 1.49
Current children cumulated vsize (KiB) 335916

[startup+3.10198 s]
/proc/loadavg: 0.84 0.95 0.98 2/65 26468
/proc/meminfo: memFree=1802264/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=3.09
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 309 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134515649 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 3.09
Current children cumulated vsize (KiB) 335916

[startup+6.30153 s]
/proc/loadavg: 0.85 0.95 0.98 2/65 26468
/proc/meminfo: memFree=1802200/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=6.29
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 629 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134515622 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 6.29
Current children cumulated vsize (KiB) 335916

[startup+12.7016 s]
/proc/loadavg: 0.87 0.95 0.98 2/65 26468
/proc/meminfo: memFree=1802200/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=12.69
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 1269 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134547175 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 12.69
Current children cumulated vsize (KiB) 335916

[startup+25.5018 s]
/proc/loadavg: 0.89 0.95 0.98 2/65 26468
/proc/meminfo: memFree=1802200/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=25.48
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 2548 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134547179 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 25.48
Current children cumulated vsize (KiB) 335916

[startup+51.1012 s]
/proc/loadavg: 0.93 0.96 0.98 2/65 26468
/proc/meminfo: memFree=1802200/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=51.07
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 5107 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134515629 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 51.07
Current children cumulated vsize (KiB) 335916

[startup+102.302 s]
/proc/loadavg: 0.97 0.96 0.98 2/65 26468
/proc/meminfo: memFree=1802200/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=102.26
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 10226 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134515629 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 102.26
Current children cumulated vsize (KiB) 335916

[startup+162.301 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802136/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=162.23
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 16223 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134514774 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 162.23
Current children cumulated vsize (KiB) 335916

[startup+222.305 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802072/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=222.21
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 22221 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134517007 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 222.21
Current children cumulated vsize (KiB) 335916

[startup+282.302 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802008/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=282.19
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 28219 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134514774 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 282.19
Current children cumulated vsize (KiB) 335916

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

[startup+294.402 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802008/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=294.28
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 29428 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134516667 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 294.28
Current children cumulated vsize (KiB) 335916

[startup+300.802 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802008/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=300.68
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 30068 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134517061 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 300.68
Current children cumulated vsize (KiB) 335916

[startup+307.202 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802008/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=307.08
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 30708 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134547175 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 307.08
Current children cumulated vsize (KiB) 335916

[startup+310.401 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802008/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=310.28
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 31028 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134515597 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 310.28
Current children cumulated vsize (KiB) 335916

[startup+311.202 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802008/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=311.08
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 31108 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134516667 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 311.08
Current children cumulated vsize (KiB) 335916

[startup+311.602 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802008/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=311.48
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 31148 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134516985 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 311.48
Current children cumulated vsize (KiB) 335916

[startup+311.802 s]
/proc/loadavg: 0.99 0.97 0.98 2/65 26468
/proc/meminfo: memFree=1802008/2055920 swapFree=4175332/4192956
[pid=26467] ppid=26465 vsize=335916 CPUtime=311.68
/proc/26467/stat : 26467 (iPAWS) R 26465 26467 26430 0 -1 4194304 1815 0 0 0 31168 0 0 0 25 0 1 0 1149488974 343977984 1799 1992294400 134512640 135114423 4294956224 18446744073709551615 134550317 0 0 4096 0 0 0 0 17 1 0 0
/proc/26467/statm: 83979 1799 58 146 0 83831 0
Current children cumulated CPU time (s) 311.68
Current children cumulated vsize (KiB) 335916

Child status: 0
Real time (s): 311.859
CPU time (s): 311.749
CPU user time (s): 311.738
CPU system time (s): 0.010998
CPU usage (%): 99.9647
Max. virtual memory (cumulated for all children) (KiB): 335916

getrusage(RUSAGE_CHILDREN,...) data:
user time used= 311.738
system time used= 0.010998
maximum resident set size= 0
integral shared memory size= 0
integral unshared data size= 0
integral unshared stack size= 0
page reclaims= 1823
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= 514

runsolver used 0.230964 second user time and 0.674897 second system time

The end

Launcher Data 

Begin job on node55 at 2009-04-03 16:17:51
IDJOB=1561691
IDBENCH=70920
IDSOLVER=516
FILE ID=node55/1561691-1238768271
PBS_JOBID= 9085531
Free space on /tmp= 66536 MiB

SOLVER NAME= iPAWS 2009-03-22
BENCH NAME= SAT09/APPLICATIONS/edgematching/explicit/em_8_4_5_exp.cnf
COMMAND LINE= HOME/iPAWS BENCHNAME RANDOMSEED
RUNSOLVER COMMAND LINE= BIN/runsolver --timestamp -w /tmp/evaluation-result-1561691-1238768271/watcher-1561691-1238768271 -o /tmp/evaluation-result-1561691-1238768271/solver-1561691-1238768271 -C 1200 -W 1800 -M 1800 --output-limit 1,15  HOME/iPAWS HOME/instance-1561691-1238768271.cnf 591662615

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

MD5SUM BENCH= 8074a7bc3c1695dbe8e033b31e3d3feb
RANDOM SEED=591662615

node55.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		: 3000.259
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		: 3000.259
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:       1809920 kB
Buffers:         46372 kB
Cached:         109740 kB
SwapCached:      11848 kB
Active:          35868 kB
Inactive:       133660 kB
HighTotal:           0 kB
HighFree:            0 kB
LowTotal:      2055920 kB
LowFree:       1809920 kB
SwapTotal:     4192956 kB
SwapFree:      4175332 kB
Dirty:            1728 kB
Writeback:           0 kB
Mapped:          18984 kB
Slab:            62516 kB
Committed_AS:  2927068 kB
PageTables:       1372 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= 66532 MiB
End job on node55 at 2009-04-03 16:23:03