[RegCNET] Model Crashes after regular interval

IMRAN NADEEM qphoton at gmail.com
Tue May 22 16:28:02 CEST 2007


Hi Bi and Gao,

           I have checked there is no wall-time set by administrator. Also I
am using timestep(dt =30) which is exactly three times the horizontal
resolution (10km). If it is computational instability, why it occurs so
regularly (after every 3 months). It is not possible to make serial run for
this case immediately because it will take more than a week to reach 90th
day at which model crashes. From the part of
error message "failure occurred while allocating memory for a request
object" I guess this problem may be related to memory.

Regards
Nadeem









 5/22/07, XUNQIANG BI <bixq at ictp.it> wrote:
>
>
> Hi, Imran:
>
> Can you get exact the same results between serial and parallel ?
>
> If yes, then it's easy to check where the problem is. Run the serail
> job for the same case to see if it crashed or not.
>
> I guess the problem is also a computational instability, the timestep
> problem.
>
> Regards,
> Bi
>
> On Tue, 22 May 2007, IMRAN NADEEM wrote:
>
> > Hi Gao,
> >
> > I don't know about wall-time set by administrator but I have not set any
> > wall-time for any job.
> >  Yes I can  restart the model after crash.
> >
> > Regards
> > Imran
> >
> > On 5/22/07, gaoxj at cma.gov.cn <gaoxj at cma.gov.cn> wrote:
> >>
> >>   Hi Imran,
> >>
> >>  Quick comments: do you or the administrator set a wall-time for your
> job
> >>  in the computer(s)? Can the model be restarted after the crash?
> >>
> >>  Gao
> >>
> >>
> >>
> >>
> >>  ----- Original Message -----
> >>  *From:* IMRAN NADEEM <qphoton at gmail.com>
> >>  *To:* regcnet at lists.ictp.it
> >>  *Sent:* Tuesday, May 22, 2007 4:43 PM
> >>  *Subject:* [RegCNET] Model Crashes after regular interval
> >>
> >>
> >>  Dear RegCNET Users,
> >>
> >>  I am running parallel version of RegCM3 on 4 processors. My model
> crashes
> >>  after every 90 days. The error log, for
> >>  3 crashes that occur at  90days , 180days and 270 days, is attached. I
> did
> >>  the same simulation on different machine using different
> >>  compiler but I got the same error. I am running at dx=10km with dt=30.
> >>
> >>  Thanks in advance
> >>  Imran
> >>
> >>  *******************************First
> >>  Crash*******************************************
> >>  BCs are ready from   1998123006   to   1998123012
> >>      at day =   90.2601, ktau =     259950 :  1st, 2nd time deriv of ps
> =
> >>  0.81562E-05 0.64871E-07,  no. of points w/convection =    0
> >>      at day =   90.2774, ktau =     260000 :  1st, 2nd time deriv of ps
> =
> >>  0.10552E-04 0.65019E-07,  no. of points w/convection =    0
> >>      at day =   90.2948, ktau =     260050 :  1st, 2nd time deriv of ps
> =
> >>  0.12071E-04 0.74096E-07,  no. of points w/convection =    0
> >>  [cli_2]: aborting job:
> >>  Fatal error in MPI_Sendrecv: Other MPI error, error stack:
> >>  MPI_Sendrecv(217).........................:
> MPI_Sendrecv(sbuf=0x4080c960,
> >>  scount=184, MPI_DOUBLE_PRECISION, dest=1, stag=2, rbuf=0x4080cf20,
> >>  rcount=184, MPI_DOUBLE_PRECISION, src=3, rtag=2, MPI_COMM_WORLD,
> >>  status=0x7ee380) failed
> >>  MPIDI_CH3_Progress_wait(212)..............: an error occurred while
> >>  handling an event returned by MPIDU_Sock_Wait()
> >>  MPIDI_CH3I_Progress_handle_sock_event(428):
> >>  MPIDI_EagerContigIsend(512)...............: failure occurred while
> >>  allocating memory for a request object
> >>  rank 2 in job 9  imp9_52929   caused collective abort of all ranks
> >>   exit status of rank 2: killed by signal 9
> >>  36.314u 5.760s 53:58:42.21 0.0% 0+0k 0+0io 0pf+0w
> >>
> >>  ******************************2nd
> >>  Crash****************************************
> >>  BCs are ready from   1999033006   to   1999033012
> >>      at day =  180.2635, ktau =     254200 :  1st, 2nd time deriv of ps
> =
> >>  0.84223E-05 0.10490E-06,  no. of points w/convection =   61
> >>      at day =  180.2809, ktau =     254250 :  1st, 2nd time deriv of ps
> =
> >>  0.11980E-04 0.95740E-07,  no. of points w/convection =   84
> >>  [cli_2]: aborting job:
> >>  Fatal error in MPI_Sendrecv: Other MPI error, error stack:
> >>  MPI_Sendrecv(217).........................:
> MPI_Sendrecv(sbuf=0x4080c960,
> >>  scount=184, MPI_DOUBLE_PRECISION, dest=1, stag=2, rbuf=0x4080cf20,
> >>  rcount=184, MPI_DOUBLE_PRECISION, src=3, rtag=2, MPI_COMM_WORLD,
> >>  status=0x7ee380) failed
> >>  MPIDI_CH3_Progress_wait(212)..............: an error occurred while
> >>  handling an event returned by MPIDU_Sock_Wait()
> >>  MPIDI_CH3I_Progress_handle_sock_event(428):
> >>  MPIDI_EagerContigIsend(512)...............: failure occurred while
> >>  allocating memory for a request object
> >>  rank 2 in job 10  imp9_52929   caused collective abort of all ranks
> >>   exit status of rank 2: killed by signal 9
> >>  33.842u 5.688s 53:02:37.63 0.0% 0+0k 0+0io 431pf+0w
> >>  ******************************************3rd
> >>  Crash************************************
> >>   Writing rad fields at ktau =       513360  1999062806
> >>   BCs are ready from   1999062806   to   1999062812
> >>      at day =  270.2635, ktau =     513400 :  1st, 2nd time deriv of ps
> =
> >>  0.10755E-04 0.17164E-06,  no. of points w/convection = 1532
> >>      at day =  270.2809, ktau =     513450 :  1st, 2nd time deriv of ps
> =
> >>  0.12644E-04 0.20978E-06,  no. of points w/convection = 2103
> >>  [cli_2]: aborting job:
> >>  Fatal error in MPI_Sendrecv: Other MPI error, error stack:
> >>  MPI_Sendrecv(217).........................:
> MPI_Sendrecv(sbuf=0x4080c960,
> >>  scount=184, MPI_DOUBLE_PRECISION, dest=1, stag=2, rbuf=0x4080cf20,
> >>  rcount=184, MPI_DOUBLE_PRECISION, src=3, rtag=2, MPI_COMM_WORLD,
> >>  status=0x7ee380) failed
> >>  MPIDI_CH3_Progress_wait(212)..............: an error occurred while
> >>  handling an event returned by MPIDU_Sock_Wait()
> >>  MPIDI_CH3I_Progress_handle_sock_event(428):
> >>  MPIDI_EagerContigIsend(512)...............: failure occurred while
> >>  allocating memory for a request object
> >>  rank 2 in job 14  imp9_52929   caused collective abort of all ranks
> >>   exit status of rank 2: killed by signal 9
> >>  34.102u 5.336s 53:42:44.95 0.0% 0+0k 0+0io 0pf+0w
> >>  **************************************
> >>
> >>  ------------------------------
> >>
> >>  _______________________________________________
> >>  RegCNET mailing list
> >>  RegCNET at lists.ictp.it
> >>  https://lists.ictp.it/mailman/listinfo/regcnet
> >>
> >>
> >
> >
> > --
> > Imran Nadeem
> > PhD Student
> > Institute of Meteorology
> > Department of Water, Atmosphere and Environment
> > Uni. of Natural Resources and Applied Life Sciences (BOKU)
> >
> > Peter-Jordan Strasse 82
> > 1190 Vienna, Austria
> >
> > Mobile: +43 699 1194 3044
> > Tel.: +43 1 47654 5614
> > Fax: +43 1 47654 5610
> >
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>    Dr. Xunqiang Bi         email:bixq at ictp.it
>    Earth System Physics Group
>    The Abdus Salam ICTP
>    Strada Costiera, 11
>    P.O. BOX 586, 34100 Trieste, ITALY
>    Tel: +39-040-2240302  Fax: +39-040-2240449
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>



-- 
Imran Nadeem
PhD Student
Institute of Meteorology
Department of Water, Atmosphere and Environment
Uni. of Natural Resources and Applied Life Sciences (BOKU)

Peter-Jordan Strasse 82
1190 Vienna, Austria

Mobile: +43 699 1194 3044
Tel.: +43 1 47654 5614
Fax: +43 1 47654 5610
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