[gridengine users] strange cpu time and wallclock

Jerome jerome at ibt.unam.mx
Thu Dec 7 16:50:22 UTC 2017


Dear all.

I've a bit confusiong about some accounting data get back from a single job:

qname        all.q
hostname     compute-0-4.local

../..

slots        1
failed       0
exit_status  0
ru_wallclock 1761
ru_utime     2066.817
ru_stime     104.779
ru_maxrss    56872
ru_ixrss     0
ru_ismrss    0
ru_idrss     0
ru_isrss     0
ru_minflt    227175
ru_majflt    0
ru_nswap     0
ru_inblock   0
ru_oublock   51524248
ru_msgsnd    0
ru_msgrcv    0
ru_nsignals  0
ru_nvcsw     1382558
ru_nivcsw    441419
cpu          2171.596
mem          73.691
io           272.204
iow          0.000
maxvmem      223.262M
arid         undefined


I'm surprise that the wallclock time (1761) is less than the cpu time 
(2171) , in a single core jobs. In this case, i've got an eficiency more 
than 120 % !!!

I'm sure i'm wrong, but can't know where..

Thanks.

-- 
-- Jérôme
Si le problème a une solution, il ne sert à rien de s'inquiéter.
Mais s'il n'en a pas, alors s'inquiéter ne change rien.
	(Proverbe tibétain)



More information about the users mailing list