ls-dyna并行计算出问题，请教！

goalyhfeng

本人在ls-dyna中计算一个物体冲击入水，我采用了并行计算，结果出现的错误为：memory　is　exhausted
我采用了４个cpu进行计算，系统提示出的问题是：
ERROR: 0032-171 Communication subsystem error:  Memory is exhausted.   in MPI_Alltoall, task 1
ERROR: 0031-250  task 1: Terminated
ERROR: 0031-250  task 0: Terminated
ERROR: 0031-250  task 2: Terminated
ERROR: 0031-250  task 3: Terminated
请牛人解答．

shanget

这个问题没遇到过，把message文件发上来看看吧，最好说明一下机器配置和参数设置。

goalyhfeng

Date: 08/27/2007      Time: 07:23:50  
Executing with local workstation license
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     |                                              　　　　　　　　　   |
     |  LS-DYNA, A Program for Nonlinear Dynamic       　　　|
     |  Analysis of Structures in Three Dimensions     　　　　|
     |  Version:  970 beta     Date: 10/20/2004       　　　　　|
     |  Revision: 5860         Time: 23:40:32         　　　　　 |
     |                                              　　　　　　　　　　 |
     |  Features enabled in this version:          　 　　　　　   |
     |    Distributed Memory Parallel                 　　　　　　 |
     |                                              　　　　　　　　　   |
     |  Licensed to: Great Computer Center, Hunan Unive　　　|
     |                                                 　　　　　　　　　|
     |  Platform   : IBM Workstation (PWR3 64Bits)     　　　　|
     |  OS Level   : AIX 5.1                          　　　　　　　 |
     |  Hostname   : n02                               　　　　　　　|
     |  Precision  : Single precision (I4R4)          　　　　　　 |
     |                                                 　　　　　　　　　　|
     |  Unauthorized use infringes LSTC copyrights   　　　　  |
     |_________________________________________________|
Input file: feiji51.k                                                               

The native file format       : 32-bit big endian  
Memory size from command line:   200000000
on UNIX computers note the following change:
ctrl-c interrupts ls-dyna and prompts for a sense  switch.
type the desired sense switch: sw1., sw2., etc. to continue
the execution.  ls-dyna will respond as explained in the users manual
    type                      response
   -----   ------------------------------------------------------------
   sw1.    a restart file is written and ls-dyna terminates.
   sw2.    ls-dyna responds with time and cycle numbers.   
   sw3.    a restart file is written and ls-dyna continues calculations.
   sw4.    a plot state is written and ls-dyna continues calculations.
   sw5.    ls-dyna enters interactive graphics phase.
   swa.    ls-dyna flushes all output i/o buffers.
********  notice  ********  notice  ********  notice  ********
*                                                            *
* This is the LS-DYNA Explicit Finite Element code.          *
* Neither LSTC nor the authors assume any responsibility for *
* the validity, accuracy, or applicability of any results    *
* obtained from this system. The user must verify his own    *
* results.                                                   *
*                                                            *
* LSTC endeavors to make the LS-DYNA code as complete,       *
* accurate and easy to use as possible.                      *
* Suggestions and comments are welcomed.  Please report any  *
* errors encountered in either the documentation or results  *
* immediately to LSTC through your site focus.               *
*                                                            *
* Copyright (C) 1990-2004                                    *
* by Livermore Software Technology Corp. (LSTC)              *
* All rights reserved                                        *
*                                                            *
********  notice  ********  notice  ********  notice  ********
  
Initial reading of file
  
Performing Decomposition -- Phase 1
  
Performing Recursive Coordinate Bisection (RCB)
Performing Decomposition -- Phase 2
  
Warning: Soft constraint unsupported on sliding interface type    9
soft constraint turned off for sliding interface    7
Warning: Soft constraint unsupported on sliding interface type    9
soft constraint turned off for sliding interface    8
Warning: Soft constraint unsupported on sliding interface type    9
soft constraint turned off for sliding interface    9
Warning: Soft constraint unsupported on sliding interface type    9
soft constraint turned off for sliding interface   10
Warning: Soft constraint unsupported on sliding interface type    9
soft constraint turned off for sliding interface   11
Warning: Soft constraint unsupported on sliding interface type    9
soft constraint turned off for sliding interface   12
Warning: Soft constraint unsupported on sliding interface type    9
soft constraint turned off for sliding interface   13
Warning: Soft constraint unsupported on sliding interface type    9
soft constraint turned off for sliding interface   14
Performing Decomposition -- Phase 3
  
input of data is completed
slave  stiffness of sliding interface        15 is scaled by   7.52985E-02
master stiffness of sliding interface        15 is scaled by   1.32805E+01
slave  stiffness of sliding interface        16 is scaled by   7.52537E-02
master stiffness of sliding interface        16 is scaled by   1.32884E+01
initial kinetic energy =  .98542163E+03
The LS-DYNA time step size should not exceed      .466E-03
to avoid contact instabilities.  If the step size is
bigger then scale the penalty of the offending surface.

initialization completed
Initial penetration for SI          7    .00000
Initial penetration for SI          8    .00000
Initial penetration for SI          9   1.05108
Initial penetration for SI         10   2.80402
Initial penetration for SI         11   1.05108
Initial penetration for SI         12   2.80402
Initial penetration for SI         13    .00000
Initial penetration for SI         14    .00000
dt of cycle       1 is controlled by shell      element  163663
time...........................   0.00000E+00
time step......................   2.06037E-03
kinetic energy.................   9.85434E+02
internal energy................   4.00000E-20
spring and damper energy.......   4.00000E-20
hourglass energy ..............   0.00000E+00
system damping energy..........   0.00000E+00
sliding interface energy.......   0.00000E+00
external work..................   0.00000E+00
eroded kinetic energy..........   0.00000E+00
eroded internal energy.........   0.00000E+00
total energy...................   9.85434E+02
total energy / initial energy..   1.00000E+00
energy ratio w/o eroded energy.   1.00000E+00
global x velocity..............   8.28956E-02
global y velocity..............   0.00000E+00
global z velocity..............  -1.24251E-02
cpu time per zone cycle............      1212 nanoseconds
average cpu time per zone cycle....      1212 nanoseconds
average clock time per zone cycle..         0 nanoseconds
estimated total cpu time          =    165048 sec (      45 hrs 50 mins)
estimated cpu time to complete    =    165019 sec (      45 hrs 50 mins)
estimated total clock time        =         0 sec (       0 hrs  0 mins)
estimated clock time to complete  =         0 sec (       0 hrs  0 mins)
       1 t 0.0000E+00 dt 2.06E-03 flush i/o buffers
       1 t 0.0000E+00 dt 2.06E-03 write d3plot file
    4854 t 9.9990E+00 dt 2.06E-03 write d3plot file
    5000 t 1.0300E+01 dt 2.06E-03 flush i/o buffers
    9708 t 2.0000E+01 dt 2.06E-03 write d3plot file
   10000 t 2.0602E+01 dt 2.06E-03 flush i/o buffers
   14561 t 2.9999E+01 dt 2.06E-03 write d3plot file
   15000 t 3.0903E+01 dt 2.06E-03 flush i/o buffers
   19415 t 4.0000E+01 dt 2.06E-03 write d3plot file
   20000 t 4.1205E+01 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
   20000 t 4.1207E+01 dt 2.06E-03 write d3dump01 file
   24268 t 4.9999E+01 dt 2.06E-03 write d3plot file
   25000 t 5.1507E+01 dt 2.06E-03 flush i/o buffers
   29122 t 6.0000E+01 dt 2.06E-03 write d3plot file
   30000 t 6.1809E+01 dt 2.06E-03 flush i/o buffers
   33975 t 6.9999E+01 dt 2.06E-03 write d3plot file
   35000 t 7.2111E+01 dt 2.06E-03 flush i/o buffers
   38829 t 8.0000E+01 dt 2.06E-03 write d3plot file
   40000 t 8.2413E+01 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
   40000 t 8.2415E+01 dt 2.06E-03 write d3dump02 file
   43682 t 8.9999E+01 dt 2.06E-03 write d3plot file
   45000 t 9.2715E+01 dt 2.06E-03 flush i/o buffers
   48536 t 1.0000E+02 dt 2.06E-03 write d3plot file
   50000 t 1.0302E+02 dt 2.06E-03 flush i/o buffers
   53389 t 1.1000E+02 dt 2.06E-03 write d3plot file
   55000 t 1.1332E+02 dt 2.06E-03 flush i/o buffers
   58243 t 1.2000E+02 dt 2.06E-03 write d3plot file
   60000 t 1.2362E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
   60000 t 1.2362E+02 dt 2.06E-03 write d3dump03 file
   63096 t 1.3000E+02 dt 2.06E-03 write d3plot file
   65000 t 1.3392E+02 dt 2.06E-03 flush i/o buffers
   67950 t 1.4000E+02 dt 2.06E-03 write d3plot file
   70000 t 1.4422E+02 dt 2.06E-03 flush i/o buffers
   72803 t 1.5000E+02 dt 2.06E-03 write d3plot file
   75000 t 1.5453E+02 dt 2.06E-03 flush i/o buffers
   77657 t 1.6000E+02 dt 2.06E-03 write d3plot file
   80000 t 1.6483E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
   80000 t 1.6483E+02 dt 2.06E-03 write d3dump04 file
   82510 t 1.7000E+02 dt 2.06E-03 write d3plot file
   85000 t 1.7513E+02 dt 2.06E-03 flush i/o buffers
   87364 t 1.8000E+02 dt 2.06E-03 write d3plot file
   90000 t 1.8543E+02 dt 2.06E-03 flush i/o buffers
   92217 t 1.9000E+02 dt 2.06E-03 write d3plot file
   95000 t 1.9573E+02 dt 2.06E-03 flush i/o buffers
   97071 t 2.0000E+02 dt 2.06E-03 write d3plot file
  100000 t 2.0603E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  100000 t 2.0604E+02 dt 2.06E-03 write d3dump05 file
  101924 t 2.1000E+02 dt 2.06E-03 write d3plot file
  105000 t 2.1634E+02 dt 2.06E-03 flush i/o buffers
  106778 t 2.2000E+02 dt 2.06E-03 write d3plot file
  110000 t 2.2664E+02 dt 2.06E-03 flush i/o buffers
  111631 t 2.3000E+02 dt 2.06E-03 write d3plot file
  115000 t 2.3694E+02 dt 2.06E-03 flush i/o buffers
  116485 t 2.4000E+02 dt 2.06E-03 write d3plot file
  120000 t 2.4724E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  120000 t 2.4724E+02 dt 2.06E-03 write d3dump06 file
  121338 t 2.5000E+02 dt 2.06E-03 write d3plot file
  125000 t 2.5754E+02 dt 2.06E-03 flush i/o buffers
  126192 t 2.6000E+02 dt 2.06E-03 write d3plot file
  130000 t 2.6785E+02 dt 2.06E-03 flush i/o buffers
  131045 t 2.7000E+02 dt 2.06E-03 write d3plot file
  135000 t 2.7815E+02 dt 2.06E-03 flush i/o buffers
  135899 t 2.8000E+02 dt 2.06E-03 write d3plot file
  140000 t 2.8845E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  140000 t 2.8845E+02 dt 2.06E-03 write d3dump07 file
  140752 t 2.9000E+02 dt 2.06E-03 write d3plot file
  145000 t 2.9875E+02 dt 2.06E-03 flush i/o buffers
  145606 t 3.0000E+02 dt 2.06E-03 write d3plot file
  150000 t 3.0905E+02 dt 2.06E-03 flush i/o buffers
  150459 t 3.1000E+02 dt 2.06E-03 write d3plot file
  155000 t 3.1936E+02 dt 2.06E-03 flush i/o buffers
  155313 t 3.2000E+02 dt 2.06E-03 write d3plot file
  160000 t 3.2966E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  160000 t 3.2966E+02 dt 2.06E-03 write d3dump08 file
  160166 t 3.3000E+02 dt 2.06E-03 write d3plot file
  165000 t 3.3996E+02 dt 2.06E-03 flush i/o buffers
  165020 t 3.4000E+02 dt 2.06E-03 write d3plot file
  169873 t 3.5000E+02 dt 2.06E-03 write d3plot file
  170000 t 3.5026E+02 dt 2.06E-03 flush i/o buffers
  174727 t 3.6000E+02 dt 2.06E-03 write d3plot file
  175000 t 3.6056E+02 dt 2.06E-03 flush i/o buffers
  179580 t 3.7000E+02 dt 2.06E-03 write d3plot file
  180000 t 3.7086E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  180000 t 3.7087E+02 dt 2.06E-03 write d3dump09 file
  184434 t 3.8000E+02 dt 2.06E-03 write d3plot file
  185000 t 3.8117E+02 dt 2.06E-03 flush i/o buffers
  189287 t 3.9000E+02 dt 2.06E-03 write d3plot file
  190000 t 3.9147E+02 dt 2.06E-03 flush i/o buffers
  194141 t 4.0000E+02 dt 2.06E-03 write d3plot file
  195000 t 4.0177E+02 dt 2.06E-03 flush i/o buffers
  198994 t 4.1000E+02 dt 2.06E-03 write d3plot file
  200000 t 4.1207E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  200000 t 4.1207E+02 dt 2.06E-03 write d3dump10 file
  203848 t 4.2000E+02 dt 2.06E-03 write d3plot file
  205000 t 4.2237E+02 dt 2.06E-03 flush i/o buffers
  208701 t 4.3000E+02 dt 2.06E-03 write d3plot file
  210000 t 4.3268E+02 dt 2.06E-03 flush i/o buffers
  213555 t 4.4000E+02 dt 2.06E-03 write d3plot file
  215000 t 4.4298E+02 dt 2.06E-03 flush i/o buffers
  218408 t 4.5000E+02 dt 2.06E-03 write d3plot file
  220000 t 4.5328E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  220000 t 4.5328E+02 dt 2.06E-03 write d3dump11 file
  223262 t 4.6000E+02 dt 2.06E-03 write d3plot file
  225000 t 4.6358E+02 dt 2.06E-03 flush i/o buffers
  228115 t 4.7000E+02 dt 2.06E-03 write d3plot file
  230000 t 4.7388E+02 dt 2.06E-03 flush i/o buffers
  232969 t 4.8000E+02 dt 2.06E-03 write d3plot file
  235000 t 4.8418E+02 dt 2.06E-03 flush i/o buffers
  237822 t 4.9000E+02 dt 2.06E-03 write d3plot file
  240000 t 4.9449E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  240000 t 4.9449E+02 dt 2.06E-03 write d3dump12 file
  242676 t 5.0000E+02 dt 2.06E-03 write d3plot file
  245000 t 5.0479E+02 dt 2.06E-03 flush i/o buffers
  247529 t 5.1000E+02 dt 2.06E-03 write d3plot file
  250000 t 5.1509E+02 dt 2.06E-03 flush i/o buffers
  252383 t 5.2000E+02 dt 2.06E-03 write d3plot file
  255000 t 5.2539E+02 dt 2.06E-03 flush i/o buffers
  257236 t 5.3000E+02 dt 2.06E-03 write d3plot file
  260000 t 5.3569E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  260000 t 5.3570E+02 dt 2.06E-03 write d3dump13 file
  262090 t 5.4000E+02 dt 2.06E-03 write d3plot file
  265000 t 5.4600E+02 dt 2.06E-03 flush i/o buffers
  266943 t 5.5000E+02 dt 2.06E-03 write d3plot file
  270000 t 5.5630E+02 dt 2.06E-03 flush i/o buffers
  271797 t 5.6000E+02 dt 2.06E-03 write d3plot file
  275000 t 5.6660E+02 dt 2.06E-03 flush i/o buffers
  276650 t 5.7000E+02 dt 2.06E-03 write d3plot file
  280000 t 5.7690E+02 dt 2.06E-03 flush i/o buffers
*** Warning Airbag data not written to full restart file
  280000 t 5.7690E+02 dt 2.06E-03 write d3dump14 file
  281504 t 5.8000E+02 dt 2.06E-03 write d3plot file
  285000 t 5.8720E+02 dt 2.06E-03 flush i/o buffers
  286357 t 5.9000E+02 dt 2.06E-03 write d3plot file
  290000 t 5.9750E+02 dt 2.06E-03 flush i/o buffers
  291211 t 6.0000E+02 dt 2.06E-03 write d3plot file
计算到这里就中止了，也没有任何错误提示．
我用的IBM的机器，采用的是linux操作系统．恳请shanget给我指导，感谢！

shanget

在《IBM Parallel Environment for AIX 5L: message》手册里查到这个出错信息，看来是MPI设置的问题。

“Memory is exhausted Explanation: Could not allocate from predefined system memory.
User response: Allocate more memory by increasing MP_BUFFER_MEM size. If this size already equals maximum value (64 MB) then contact IBM service”

goalyhfeng

多谢shanget 的回答，在此表示感谢！！

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liwenhe123

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