[FLASH-BUGS] Re: [FLASH-USERS] memory overflow in flux_conserve_ut (by way of JBG)

From: Mike Zingale (zingale@flash.uchicago.edu)
Date: Fri Mar 28 2003 - 15:35:14 CST

  • Next message: Leonid Malyshkin: "[FLASH-BUGS] failure to write plt files (fwd)"

    The error appears to be that you are going over MAXBLOCKS inside the flux
    conservation routines. You've setup with 1500 blocks per processor
    maximum, and you have atleast 1389 blocks on one processor. Some padding
    is needed for temporary space.

    You should increase the number of processors you are running on, or
    increase maxblocks (which will require more memory).

    Mike

    ------------------------------------------------------------------------------
    Michael Zingale
    UCO/Lick Observatory
    UCSC
    Santa Cruz, CA 95064

    phone: (831) 459-5246
    fax: (831) 459-5265
    e-mail: zingale@ucolick.org
    web: http://www.ucolick.org/~zingale

    On Fri, 28 Mar 2003, JB Gallagher wrote:

    > > Dear all,
    > >
    > > I am setting up a pure hydrodynamic 3D problem in which an interstellar
    > > cloud is sweept away by a supernova shock front. I am using an IBM SP4;
    > > other information:
    > >
    > > Number of processors: 32
    > > Build stamp: Mon Mar 24 15:47:25 2003
    > > AIX sp011 1 0031E68A4C00
    > > Version: FLASH 2.2.20021117
    > > Build directory: /u/inapa015/FLASH2.2/object
    > > Setup syntax: ./setup.py bubble-3D -3d -auto -maxblocks=1500
    > >
    > > I get the runtime error
    > >
    > > [03-28-2003 02:14.08] <<< refined: tot_blocks = 44353 >>>
    > > [03-28-2003 02:16.22] memory usage / proc (MB): 885.49 (min) 926.49
    > > (max) 917.57 (avg)
    > > [03-28-2003 02:16.22] step 61 t= 2.786584E+10 dt= 4.434934E+08
    > >
    > > ===============================================================================
    > >
    > > ===============================================================================
    > > [03-28-2003 02:37.10] abort_flash(): called by PE 23; message
    > > follows:
    > > [03-28-2003 02:37.10] ERROR: memory overflow in flux_conserve_ut
    > > [03-28-2003 02:37.10] Calling MPI_Abort() for immediate
    > >
    > > Just before the shutdown:
    > > memory usage / proc (MB): 885.49 (min) 926.49 (max) 917.57 (avg)
    > >
    > > tot_blocks after 44353
    > > max_blocks 2 1389
    > > min_blocks 2 1378
    > >
    > > Do you have any suggestion?
    > >
    > > Best wishes,
    > > Salvatore
    > >
    > > --
    > > I N A F Istituto Nazionale di Astrofisica
    > > Osservatorio Astronomico di Palermo "G.S. Vaiana"
    > > Piazza del Parlamento 1, I-90134 Palermo, Italy
    > > Tel. +39-91-233 423, Fax. +39-91-233 444
    > > Web http://www.astropa.unipa.it/~orlando
    >



    This archive was generated by hypermail 2b30 : Fri Mar 28 2003 - 15:35:26 CST