[petsc-users] Memory problem

Matthew Knepley knepley at gmail.com
Thu Oct 6 14:55:46 CDT 2011


On Thu, Oct 6, 2011 at 10:27 AM, Rongliang Chen <rongliang.chan at gmail.com>wrote:

>    That is an overflow somewhere. You can probably get the right answer by
>
>> using -snes_view. I will try and track down this overflow.
>>
>>   Matt
>>
>>
>>
> Hi Matt,
>
> Thank you for your reply.
> The -snes_view and -log_summary output is followed. But I did not find any
> unusual results in the -snes_view output.
>

Yes, there was no overflow for individual matrices, so this output is
correct. The -log_summary output is for all
matrices, and that is the problem.


> I have another question. what the number 23 mean in the following
> -log_summary output:
>
> " Object Type          Creations   Destructions     Memory  Descendants'
> Mem.
> Reports information only for process 0.
>
> --- Event Stage 0: Main Stage
>
>               Matrix    23             23  18446744073922240512     0 "
>
> Does it mean that I created 23 matrices in my code? But I think I have not
> created so many
> matrices. Thanks.
>

You might have created them, but we are counting all matrices, for instance
those created for
subdomain preconditioning.

   Matt


> Best,
> Rongliang
>
>
>
> ------------------------------------------------------------------------------------------------------------
> Starting to load grid...
>  Nodes on moving boundary: coarse 199, fine 799, Gridratio 0.250000.
> Setupping Interpolation matrix......
> Interpolation matrix done......Time spent: 0.207468
> finished.
> Grid has 32000 elements, 1096658 degrees of freedom.
> Coarse grid has 2000 elements, 70170 degrees of freedom.
>   [0] has 9234 degrees of freedom (matrix), 9234 degrees of freedom
> (including shared points).
>   [0] coarse grid has 484 degrees of freedom (matrix), 484 degrees of
> freedom (including shared points).
>   [127] has 7876 degrees of freedom (matrix), 9100 degrees of freedom
> (including shared points).
>   [127] coarse grid has 588 degrees of freedom (matrix), 912 degrees of
> freedom (including shared points).
> Time spend on the load grid and create matrix etc.: 3.719866.
>
> Solving Shape Optimization problem (steady-state problem)
> Solving coarse problem......
>   0 SNES norm 3.4998054301e+01, 0 KSP its last norm 0.0000000000e+00.
>   1 SNES norm 3.1501179205e+01, 34 KSP its last norm 3.3927102450e-01.
>   2 SNES norm 2.1246874435e+01, 57 KSP its last norm 3.1177722630e-01.
>   3 SNES norm 1.7390263296e+01, 141 KSP its last norm 1.9452289323e-01.
>   4 SNES norm 1.1644760718e+01, 160 KSP its last norm 1.6835316856e-01.
>   5 SNES norm 1.0601030093e+01, 181 KSP its last norm 1.1003156828e-01.
>   6 SNES norm 1.0145938759e+00, 126 KSP its last norm 1.0556059459e-01.
>   7 SNES norm 1.9267547420e-01, 203 KSP its last norm 9.9489004947e-03.
>   8 SNES norm 1.8901340973e-03, 195 KSP its last norm 1.8359299380e-03.
> Coarse solver done......
> Optimized value of object function (Energy dissipation) (Coarse):
> 29.9743671231
> The reduction of the energy dissipation (Coarse): -inf%
> The optimized curve (Coarse):
>  a = (4.500000, -0.042961, -0.002068, 0.043750, -0.018783, 0.001816)
> Solving  moving mesh equation......
>  KSP norm 2.2906632201e-07, KSP its. 741. Time spent 2.772948
> Moving mesh solver done.
>   0 SNES norm 4.7914118974e+02, 0 KSP its last norm 0.0000000000e+00.
>   1 SNES norm 1.0150289152e+02, 63 KSP its last norm 4.6576374323e-01.
>   2 SNES norm 1.8326417396e+00, 90 KSP its last norm 9.9707541310e-02.
>   3 SNES norm 3.7711809663e-03, 348 KSP its last norm 1.8059473115e-03.
>   4 SNES norm 9.7342448527e-06, 484 KSP its last norm 3.6343704479e-06.
> SNES Object: 128 MPI processes
>   type: ls
>     line search variant: SNESLineSearchCubic
>     alpha=1.000000000000e-04, maxstep=1.000000000000e+08,
> minlambda=1.000000000000e-12
>   maximum iterations=20, maximum function evaluations=10000
>   tolerances: relative=1e-06, absolute=1e-10, solution=1e-08
>   total number of linear solver iterations=985
>   total number of function evaluations=5
>   KSP Object:   128 MPI processes
>     type: gmres
>       GMRES: restart=600, using Classical (unmodified) Gram-Schmidt
> Orthogonalization with no iterative refinement
>       GMRES: happy breakdown tolerance 1e-30
>     maximum iterations=3000, initial guess is zero
>     tolerances:  relative=0.001, absolute=1e-08, divergence=10000
>     right preconditioning
>     using UNPRECONDITIONED norm type for convergence test
>   PC Object:   128 MPI processes
>     type: asm
>       Additive Schwarz: total subdomain blocks = 128, user-defined overlap
>       Additive Schwarz: restriction/interpolation type - BASIC
>       Local solve is same for all blocks, in the following KSP and PC
> objects:
>     KSP Object:    (sub_)     1 MPI processes
>       type: preonly
>       maximum iterations=10000, initial guess is zero
>       tolerances:  relative=1e-05, absolute=1e-50, divergence=10000
>       left preconditioning
>       using NONE norm type for convergence test
>     PC Object:    (sub_)     1 MPI processes
>       type: lu
>         LU: out-of-place factorization
>         tolerance for zero pivot 1e-12
>         using diagonal shift to prevent zero pivot
>         matrix ordering: qmd
>         factor fill ratio given 5, needed 5.26731
>           Factored matrix follows:
>             Matrix Object:             1 MPI processes
>               type: seqaij
>               rows=25170, cols=25170
>               package used to perform factorization: petsc
>               total: nonzeros=11090981, allocated nonzeros=11090981
>               total number of mallocs used during MatSetValues calls =0
>                 using I-node routines: found 12872 nodes, limit used is 5
>       linear system matrix = precond matrix:
>       Matrix Object:       1 MPI processes
>         type: seqaij
>         rows=25170, cols=25170
>         total: nonzeros=2105626, allocated nonzeros=2105626
>         total number of mallocs used during MatSetValues calls =0
>           using I-node routines: found 13453 nodes, limit used is 5
>     linear system matrix = precond matrix:
>     Matrix Object:     128 MPI processes
>       type: mpiaij
>       rows=1096658, cols=1096658
>       total: nonzeros=94170314, allocated nonzeros=223806957
>       total number of mallocs used during MatSetValues calls =6185057
>         not using I-node (on process 0) routines
> Optimized value of object function (Energy dissipation) (Fine):
> 33.2754475059
> Solution time of 395.289169 sec.
>
> Number of unknowns = 1096658
> Parameters: kinematic viscosity = 0.01
>             inlet velocity: u = 5,  v = 0
> Total number of nonlinear iterations = 4
> Total number of linear iterations = 985
> Average number of linear iterations = 246.250000
> Time computing: 395.289169 sec, Time outputting: 0.000000 sec.
> Time spent in coarse nonlinear solve: 13.134366 sec, 0.033227 fraction of
> total compute time.
> The optimized curve (fine):
>  a = (4.500000, -0.046466, -0.001962, 0.045734, -0.019141, 0.001789)
> The reduction of the energy dissipation (Fine): -inf%
> Time spend on fixed mesh solving: 0.013564
> Time spend on shape opt. solving: 395.324390
> Latex command line:
>   np    Newton   GMRES   Time(Total)    Time(Coarse)   Ratio
>  128 &   4   &   246.25   &   395.29  &    13.13   &  3.3\%
>
> Running finished on: Wed Oct  5 19:02:01 2011
> Total running time: 395.376442
>
> ************************************************************************************************************************
> ***             WIDEN YOUR WINDOW TO 120 CHARACTERS.  Use 'enscript -r
> -fCourier9' to print this document            ***
>
> ************************************************************************************************************************
>
> ---------------------------------------------- PETSc Performance Summary:
> ----------------------------------------------
>
> ./joab on a Janus-nod named node0844 with 128 processors, by ronglian Wed
> Oct  5 19:02:01 2011
>
> Using Petsc Release Version 3.2.0, Patch 1, Mon Sep 12 16:01:51 CDT 2011
>
>                          Max       Max/Min        Avg      Total
> Time (sec):           3.991e+02      1.00013   3.991e+02
> Objects:              1.066e+03      1.00000   1.066e+03
> Flops:                7.938e+10      2.52133   5.615e+10  7.187e+12
> Flops/sec:            1.989e+08      2.52100   1.407e+08  1.801e+10
> MPI Messages:         2.724e+05      8.91400   6.158e+04  7.883e+06
> MPI Message Lengths:  8.340e+08      2.63753   1.025e+04  8.083e+10
> MPI Reductions:       6.537e+03      1.00000
>
>
> Flop counting convention: 1 flop = 1 real number operation of type
> (multiply/divide/add/subtract)
>                             e.g., VecAXPY() for real vectors of length N
> --> 2N flops
>                             and VecAXPY() for complex vectors of length N
> --> 8N flops
>
> Summary of Stages:   ----- Time ------  ----- Flops -----  --- Messages
> ---  -- Message Lengths --  -- Reductions --
>                         Avg     %Total     Avg     %Total   counts
> %Total     Avg         %Total   counts   %Total
>  0:      Main Stage: 3.9910e+02 100.0%  7.1875e+12 100.0%  7.883e+06
> 100.0%  1.025e+04      100.0%  6.536e+03 100.0%
>
>
> ------------------------------------------------------------------------------------------------------------------------
> See the 'Profiling' chapter of the users' manual for details on
> interpreting output.
> Phase summary info:
>    Count: number of times phase was executed
>    Time and Flops: Max - maximum over all processors
>                    Ratio - ratio of maximum to minimum over all processors
>    Mess: number of messages sent
>    Avg. len: average message length
>    Reduct: number of global reductions
>    Global: entire computation
>    Stage: stages of a computation. Set stages with PetscLogStagePush() and
> PetscLogStagePop().
>       %T - percent time in this phase         %F - percent flops in this
> phase
>       %M - percent messages in this phase     %L - percent message lengths
> in this phase
>       %R - percent reductions in this phase
>    Total Mflop/s: 10e-6 * (sum of flops over all processors)/(max time over
> all processors)
>
> ------------------------------------------------------------------------------------------------------------------------
> Event                Count      Time (sec)
> Flops                             --- Global ---  --- Stage ---   Total
>                    Max Ratio  Max     Ratio   Max  Ratio  Mess   Avg len
> Reduct  %T %F %M %L %R  %T %F %M %L %R Mflop/s
>
> ------------------------------------------------------------------------------------------------------------------------
>
> --- Event Stage 0: Main Stage
>
> MatMult             2879 1.0 4.3698e+0116.7 1.86e+09 1.3 2.1e+06 1.4e+03
> 0.0e+00  4  3 27  4  0   4  3 27  4  0  4839
> MatMultTranspose       3 1.0 3.0989e-0226.2 9.81e+05 1.2 2.0e+03 7.3e+02
> 0.0e+00  0  0  0  0  0   0  0  0  0  0  3646
> MatSolve            2860 1.0 7.2956e+01 2.3 3.95e+10 2.5 0.0e+00 0.0e+00
> 0.0e+00 14 52  0  0  0  14 52  0  0  0 50895
> MatLUFactorSym         2 1.0 1.3847e+00 4.7 0.00e+00 0.0 0.0e+00 0.0e+00
> 6.0e+00  0  0  0  0  0   0  0  0  0  0     0
> MatLUFactorNum        13 1.0 4.9187e+01 5.8 3.56e+10 4.8 0.0e+00 0.0e+00
> 0.0e+00  5 33  0  0  0   5 33  0  0  0 48174
> MatILUFactorSym        1 1.0 3.9380e-03 3.3 0.00e+00 0.0 0.0e+00 0.0e+00
> 1.0e+00  0  0  0  0  0   0  0  0  0  0     0
> MatAssemblyBegin      78 1.0 8.7529e+0129.0 0.00e+00 0.0 4.3e+04 5.2e+04
> 1.3e+02 11  0  1  3  2  11  0  1  3  2     0
> MatAssemblyEnd        78 1.0 7.2215e+00 1.0 0.00e+00 0.0 8.5e+03 3.6e+02
> 1.1e+02  2  0  0  0  2   2  0  0  0  2     0
> MatGetRowIJ            3 1.0 4.3902e-02 8.3 0.00e+00 0.0 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0     0
> MatGetSubMatrice      13 1.0 1.9239e+00 2.9 0.00e+00 0.0 7.9e+04 1.8e+05
> 5.1e+01  0  0  1 17  1   0  0  1 17  1     0
> MatGetOrdering         3 1.0 4.1121e-01 3.5 0.00e+00 0.0 0.0e+00 0.0e+00
> 1.0e+01  0  0  0  0  0   0  0  0  0  0     0
> MatPartitioning        1 1.0 2.2540e-01 1.0 0.00e+00 0.0 0.0e+00 0.0e+00
> 1.0e+00  0  0  0  0  0   0  0  0  0  0     0
> MatZeroEntries        32 1.0 3.8607e-02 1.4 0.00e+00 0.0 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0     0
> MatView                3 3.0 1.6980e-0323.0 0.00e+00 0.0 0.0e+00 0.0e+00
> 1.0e+00  0  0  0  0  0   0  0  0  0  0     0
> VecDot                12 1.0 6.8195e-0317.5 8.36e+04 1.2 0.0e+00 0.0e+00
> 1.2e+01  0  0  0  0  0   0  0  0  0  0  1451
> VecMDot             2823 1.0 4.1334e+01 7.2 3.82e+09 1.2 0.0e+00 0.0e+00
> 2.8e+03  4  6  0  0 43   4  6  0  0 43 10682
> VecNorm             2888 1.0 2.5551e+00 3.1 3.47e+07 1.2 0.0e+00 0.0e+00
> 2.9e+03  0  0  0  0 44   0  0  0  0 44  1575
> VecScale            2860 1.0 2.0850e-02 1.9 1.73e+07 1.2 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0 96028
> VecCopy              117 1.0 2.1448e-03 2.0 0.00e+00 0.0 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0     0
> VecSet              5795 1.0 2.2957e-01 2.5 0.00e+00 0.0 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0     0
> VecAXPY              116 1.0 1.9181e-03 1.6 1.36e+06 1.2 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0 82341
> VecWAXPY              16 1.0 2.6107e-04 1.5 4.61e+04 1.2 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0 21104
> VecMAXPY            2860 1.0 5.2077e+00 1.5 3.85e+09 1.2 0.0e+00 0.0e+00
> 0.0e+00  1  6  0  0  0   1  6  0  0  0 85546
> VecAssemblyBegin      60 1.0 3.4554e-0110.6 0.00e+00 0.0 1.8e+04 3.4e+02
> 1.8e+02  0  0  0  0  3   0  0  0  0  3     0
> VecAssemblyEnd        60 1.0 1.9860e-04 3.4 0.00e+00 0.0 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0     0
> VecScatterBegin     8648 1.0 1.1008e+00 3.0 0.00e+00 0.0 7.7e+06 8.4e+03
> 0.0e+00  0  0 98 80  0   0  0 98 80  0     0
> VecScatterEnd       8648 1.0 8.4154e+0135.5 0.00e+00 0.0 0.0e+00 0.0e+00
> 0.0e+00 10  0  0  0  0  10  0  0  0  0     0
> VecReduceArith         4 1.0 2.6989e-04 2.3 4.00e+04 1.2 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0 17292
> VecReduceComm          2 1.0 2.7108e-04 6.3 0.00e+00 0.0 0.0e+00 0.0e+00
> 2.0e+00  0  0  0  0  0   0  0  0  0  0     0
> VecNormalize        2860 1.0 2.5307e+00 3.1 5.17e+07 1.2 0.0e+00 0.0e+00
> 2.8e+03  0  0  0  0 44   0  0  0  0 44  2370
> SNESSolve              2 1.0 3.9251e+02 1.0 7.85e+10 2.6 6.7e+06 9.7e+03
> 4.7e+03 98 98 84 80 72  98 98 84 80 72 18034
> SNESLineSearch        12 1.0 3.0610e+00 1.0 1.26e+07 1.2 6.1e+04 1.1e+04
> 2.9e+02  1  0  1  1  4   1  0  1  1  4   473
> SNESFunctionEval      18 1.0 6.5305e+00 1.0 6.01e+06 1.2 6.2e+04 1.3e+04
> 2.9e+02  2  0  1  1  4   2  0  1  1  4   106
> SNESJacobianEval      12 1.0 2.4492e+02 1.0 0.00e+00 0.0 2.5e+04 5.9e+04
> 9.0e+01 61  0  0  2  1  61  0  0  2  1     0
> KSPGMRESOrthog      2823 1.0 4.6476e+01 4.3 7.64e+09 1.2 0.0e+00 0.0e+00
> 2.8e+03  5 12  0  0 43   5 12  0  0 43 19001
> KSPSetup              26 1.0 1.3622e-02 1.2 0.00e+00 0.0 0.0e+00 0.0e+00
> 0.0e+00  0  0  0  0  0   0  0  0  0  0     0
> KSPSolve              13 1.0 1.4371e+02 1.0 7.94e+10 2.5 7.8e+06 1.0e+04
> 5.8e+03 36100 98 97 88  36100 98 97 88 50001
> PCSetUp               26 1.0 5.2544e+01 5.3 3.56e+10 4.8 8.5e+04 1.7e+05
> 9.8e+01  6 33  1 17  1   6 33  1 17  1 45097
> PCSetUpOnBlocks       13 1.0 5.0695e+01 5.7 3.56e+10 4.8 0.0e+00 0.0e+00
> 1.7e+01  6 33  0  0  0   6 33  0  0  0 46742
> PCApply             2860 1.0 1.1268e+02 1.8 3.95e+10 2.5 5.6e+06 1.1e+04
> 0.0e+00 20 52 71 76  0  20 52 71 76  0 32953
>
>
> ------------------------------------------------------------------------------------------------------------------------
>
> Memory usage is given in bytes:
>
> Object Type          Creations   Destructions     Memory  Descendants' Mem.
> Reports information only for process 0.
>
> --- Event Stage 0: Main Stage
>
>               Matrix    23             23  18446744073922240512     0
>
>  Matrix Partitioning     1              1          640     0
>            Index Set   168            168       922496     0
>    IS L to G Mapping     2              2        78872     0
>               Vector   828            828     44121632     0
>       Vector Scatter    23             23        24196     0
>
>    Application Order     2              2      9335968     0
>                 SNES     3              2         2544     0
>        Krylov Solver     7              6     16141840     0
>       Preconditioner     7              6         5456     0
>               Viewer     2              1          712     0
>
> ========================================================================================================================
> Average time to get PetscTime(): 9.53674e-08
> Average time for MPI_Barrier(): 2.36034e-05
> Average time for zero size MPI_Send(): 2.78279e-06
> #PETSc Option Table entries:
> -coarse_ksp_rtol 1.0e-1
> -coarsegrid
> /scratch/stmp00/ronglian/input/Cannula/Cannula_Nest2_E2000_N8241_D70170.fsi
> -f
> /scratch/stmp00/ronglian/input/Cannula/Cannula_Nest2_E32000_N128961_D1096650.fsi
> -geometric_asm
> -geometric_asm_overlap 8
> -inletu 5.0
> -ksp_atol 1e-8
> -ksp_gmres_restart 600
> -ksp_max_it 3000
> -ksp_pc_side right
> -ksp_rtol 1.e-3
> -ksp_type gmres
> -log_summary
> -mat_partitioning_type parmetis
> -nest_geometric_asm_overlap 4
> -nest_ksp_atol 1e-8
> -nest_ksp_gmres_restart 800
> -nest_ksp_max_it 1000
> -nest_ksp_pc_side right
> -nest_ksp_rtol 1.e-2
> -nest_ksp_type gmres
> -nest_pc_asm_type basic
> -nest_pc_type asm
> -nest_snes_atol 1.e-10
> -nest_snes_max_it 20
> -nest_snes_rtol 1.e-4
> -nest_sub_pc_factor_mat_ordering_type qmd
> -nest_sub_pc_factor_shift_amount 1e-8
> -nest_sub_pc_factor_shift_type nonzero
> -nest_sub_pc_type lu
> -nested
> -noboundaryreduce
> -pc_asm_type basic
> -pc_type asm
> -shapebeta 10.0
> -snes_atol 1.e-10
> -snes_max_it 20
> -snes_rtol 1.e-6
> -snes_view
> -sub_pc_factor_mat_ordering_type qmd
> -sub_pc_factor_shift_amount 1e-8
> -sub_pc_factor_shift_type nonzero
> -sub_pc_type lu
> -viscosity 0.01
> #End of PETSc Option Table entries
> Compiled without FORTRAN kernels
> Compiled with full precision matrices (default)
> sizeof(short) 2 sizeof(int) 4 sizeof(long) 8 sizeof(void*) 8
> sizeof(PetscScalar) 8
> Configure run at: Tue Sep 13 13:28:48 2011
> Configure options: --known-level1-dcache-size=32768
> --known-level1-dcache-linesize=32 --known-level1-dcache-assoc=0
> --known-memcmp-ok=1 --known-sizeof-char=1 --known-sizeof-void-p=8
> --known-sizeof-short=2 --known-sizeof-int=4 --known-sizeof-long=8
> --known-sizeof-long-long=8 --known-sizeof-float=4 --known-sizeof-double=8
> --known-sizeof-size_t=8 --known-bits-per-byte=8 --known-sizeof-MPI_Comm=8
> --known-sizeof-MPI_Fint=4 --known-mpi-long-double=1 --with-batch=1
> --with-mpi-shared-libraries=1 --known-mpi-shared-libraries=0
> --download-f-blas-lapack=1 --download-hypre=1 --download-superlu=1
> --download-parmetis=1 --download-superlu_dist=1 --download-blacs=1
> --download-scalapack=1 --download-mumps=1 --with-debugging=0
> -----------------------------------------
> Libraries compiled on Tue Sep 13 13:28:48 2011 on node1367
> Machine characteristics:
> Linux-2.6.18-238.12.1.el5-x86_64-with-redhat-5.6-Tikanga
> Using PETSc directory: /home/ronglian/soft/petsc-3.2-p1
> Using PETSc arch: Janus-nodebug
> -----------------------------------------
>
> Using C compiler: mpicc  -Wall -Wwrite-strings -Wno-strict-aliasing
> -Wno-unknown-pragmas -O  ${COPTFLAGS} ${CFLAGS}
> Using Fortran compiler: mpif90  -Wall -Wno-unused-variable -O
> ${FOPTFLAGS} ${FFLAGS}
> -----------------------------------------
>
> Using include paths:
> -I/home/ronglian/soft/petsc-3.2-p1/Janus-nodebug/include
> -I/home/ronglian/soft/petsc-3.2-p1/include
> -I/home/ronglian/soft/petsc-3.2-p1/include
> -I/home/ronglian/soft/petsc-3.2-p1/Janus-nodebug/include
> -I/curc/tools/free/redhat_5_x86_64/openmpi-1.4.3_ib/include
> -----------------------------------------
>
> Using C linker: mpicc
> Using Fortran linker: mpif90
> Using libraries:
> -Wl,-rpath,/home/ronglian/soft/petsc-3.2-p1/Janus-nodebug/lib
> -L/home/ronglian/soft/petsc-3.2-p1/Janus-nodebug/lib -lpetsc -lX11
> -Wl,-rpath,/home/ronglian/soft/petsc-3.2-p1/Janus-nodebug/lib
> -L/home/ronglian/soft/petsc-3.2-p1/Janus-nodebug/lib -lsuperlu_dist_2.5
> -lcmumps -ldmumps -lsmumps -lzmumps -lmumps_common -lpord -lparmetis -lmetis
> -lHYPRE -lmpi_cxx -lstdc++ -lscalapack -lblacs -lsuperlu_4.2 -lflapack
> -lfblas -L/curc/tools/free/redhat_5_x86_64/openmpi-1.4.3_ib/lib
> -L/usr/lib/gcc/x86_64-redhat-linux/4.1.2 -ldl -lmpi -lopen-rte -lopen-pal
> -lnsl -lutil -lgcc_s -lpthread -lmpi_f90 -lmpi_f77 -lgfortran -lm -lm -lm
> -lm -lmpi_cxx -lstdc++ -lmpi_cxx -lstdc++ -ldl -lmpi -lopen-rte -lopen-pal
> -lnsl -lutil -lgcc_s -lpthread -ldl
> -----------------------------------------
>



-- 
What most experimenters take for granted before they begin their experiments
is infinitely more interesting than any results to which their experiments
lead.
-- Norbert Wiener
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