[gmx-users] handling particle decomposition with distance restraints

jayant james jayant.james at gmail.com
Thu Jun 25 03:46:13 CEST 2009


Yes my distance restraints are long because I am using FRET distances as
distance restraints while performing MD simulations. Upon usage of this
command

mpirun -np 4  mdrun_mpi  -s pr -e pr -g md -o traj.trr -c pr.gro  -pd
&

I get the following error!!   I did try giving yes after -pd but even then
the same error message is repeated.

Back Off! I just backed up md.log to ./#md.log.9#
Reading file pr.tpr, VERSION 4.0 (single precision)
NNODES=4, MYRANK=1, HOSTNAME=localhost.localdomain
NODEID=1 argc=13
NODEID=3 argc=13
[localhost:17514] *** Process received signal ***
[localhost:17514] Signal: Segmentation fault (11)
[localhost:17514] Signal code: Address not mapped (1)
[localhost:17514] Failing at address: 0x1340000
[localhost:17514] [ 0] /lib64/libpthread.so.0 [0x38dec0f0f0]
[localhost:17514] [ 1] /lib64/libc.so.6(memcpy+0x15b) [0x38de08432b]
[localhost:17514] [ 2]
/usr/lib64/openmpi/1.2.4-gcc/libmpi.so.0(ompi_convertor_pack+0x152)
[0x3886e45392]
[localhost:17514] [ 3]
/usr/lib64/openmpi/1.2.4-gcc/openmpi/mca_btl_sm.so(mca_btl_sm_prepare_src+0x13d)
[0x7f39dd118a4d]
[localhost:17514] [ 4]
/usr/lib64/openmpi/1.2.4-gcc/openmpi/mca_pml_ob1.so(mca_pml_ob1_send_request_start_rndv+0x140)
[0x7f39dd735230]
[localhost:17514] [ 5]
/usr/lib64/openmpi/1.2.4-gcc/openmpi/mca_pml_ob1.so(mca_pml_ob1_send+0x748)
[0x7f39dd72e508]
[localhost:17514] [ 6]
/usr/lib64/openmpi/1.2.4-gcc/openmpi/mca_coll_tuned.so(ompi_coll_tuned_bcast_intra_split_bintree+0x91c)
[0x7f39dc6f735c]
[localhost:17514] [ 7]
/usr/lib64/openmpi/1.2.4-gcc/libmpi.so.0(MPI_Bcast+0x15c) [0x3886e4c40c]
[localhost:17514] [ 8] mdrun_mpi(bcast_state+0x26c) [0x56d59c]
[localhost:17514] [ 9] mdrun_mpi(mdrunner+0x1067) [0x42b807]
[localhost:17514] [10] mdrun_mpi(main+0x3b4) [0x431c34]
[localhost:17514] [11] /lib64/libc.so.6(__libc_start_main+0xe6)
[0x38de01e576]
[localhost:17514] [12] mdrun_mpi [0x413339]
[localhost:17514] *** End of error message ***
mpirun noticed that job rank 0 with PID 17514 on node localhost.localdomain
exited on signal 11 (Segmentation fault).
3 additional processes aborted (not shown)



On Wed, Jun 24, 2009 at 6:04 PM, Justin A. Lemkul <jalemkul at vt.edu> wrote:

>
>
> jayant james wrote:
>
>>
>> I just replaced the old gmx 4.0 version with the 4.0.5 version and still
>> the same problem
>>
>> NOTE: atoms involved in distance restraints should be within the longest
>> cut-off distance, if this is not the case mdrun generates a fatal error, in
>> that case use particle decomposition (mdrun option -pd)
>>
>
> Well, does it work with -pd?  It looks like your distance restraints are
> indeed quite long, so this looks like it is your only option.
>
> -Justin
>
>
>
>> WARNING: Can not write distance restraint data to energy file with domain
>> decomposition
>>
>>
>>
>> On Wed, Jun 24, 2009 at 5:10 PM, Justin A. Lemkul <jalemkul at vt.edu<mailto:
>> jalemkul at vt.edu>> wrote:
>>
>>
>>
>>    jayant james wrote:
>>
>>        Hi!
>>        I am performing an mpi MD (on a quad core system) run with
>>        distance restraints. When I execute this command below  without
>>        position restraints the MD run is distributed over 4 nodes
>>        perfectly well. But when I incorporate the distance restraints I
>>        hit a road block
>>         mpirun -np 4  mdrun_mpi  -s pr -e pr -g md -o traj.trr -c pr.gro
>>  &
>>         I get this error message (below). My pr.mdp and distance
>>        restraints files are given below the error message
>>        . *
>>        Question.* How do I handle this sitation? Do I increase the long
>>        range cut off in the pr.mdp file? If you see my distance
>>        restraints file, my upper range of distances are close to 9nm!!
>>
>>
>>    Upgrade to the latest version (4.0.5), since there have been
>>    numerous improvements to domain decomposition throughout the
>>    development of version 4.0.
>>
>>    -Justin
>>
>>        Please guide.
>>        Thanks
>>        JJ
>>
>>  ----------------------------------------------------------------------------------------------------------------------------------------------------------
>>        Back Off! I just backed up md.log to ./#md.log.6#
>>        Reading file pr.tpr, VERSION 4.0 (single precision)
>>
>>        NOTE: atoms involved in distance restraints should be within the
>>        longest cut-off distance, if this is not the case mdrun
>>        generates a fatal error, in that case use particle decomposition
>>        (mdrun option -pd)
>>
>>
>>        WARNING: Can not write distance restraint data to energy file
>>        with domain decomposition
>>
>>        -------------------------------------------------------
>>        Program mdrun_mpi, VERSION 4.0.2                      Source
>>        code file: domdec.c, line: 5842                        Fatal error:
>>        There is no domain decomposition for 4 nodes that is compatible
>>        with the given box and a minimum cell size of 9.85926 nm
>>        Change the number of nodes or mdrun option -rdd or -dds
>>                                                           Look in
>>        the log file for details on the domain decomposition
>>
>>  -----------------------------------------------------------------------------------------------------------------------------------------------
>>
>>        *pr.mdp*
>>
>>        ;       User spoel (236)
>>        ;       Wed Nov  3 17:12:44 1993
>>        ;       Input file
>>        ;
>>        title               =  Yo
>>        cpp                 =  /usr/bin/cpp
>>        define              =  -DDISRES
>>        constraints         =  none
>>        ;constraint_algorithm =  lincs
>>        ;lincs_order         =  4
>>        integrator          =  md
>>        dt                  =  0.001    ; ps !
>>        nsteps              =  4000000  ; total 2.0ns.
>>        nstcomm             =  1
>>        nstxout             =  50000
>>        nstvout             =  50000
>>        nstfout             =  50000
>>        nstlog              =  50000
>>        nstenergy           =  500
>>        nstlist             =  10
>>        ns_type             =  grid
>>        rlist               =  1.0
>>        coulombtype         =  PME
>>        rcoulomb            =  1.0
>>        vdwtype             =  cut-off
>>        rvdw                =  1.4
>>        fourierspacing      = 0.12
>>        fourier_nx          = 0
>>        fourier_ny          = 0
>>        fourier_nz          = 0
>>        pme_order           = 4
>>        ewald_rtol          = 1e-5
>>        optimize_fft        = yes
>>        disre               =  simple
>>        disre_weighting     =  equal
>>        ; Berendsen temperature coupling is on in two groups
>>        Tcoupl              =  V-rescale
>>        tc-grps             =  Protein Non-Protein
>>        tau_t               =  0.1 0.1
>>        ref_t               =  300 300
>>        ; Energy monitoring
>>        energygrps          = Protein Non-Protein
>>        ;tnc Non-Protein tnt NMR tni
>>        ; Pressure coupling is not on
>>        Pcoupl              =  parrinello-rahman
>>        tau_p               =  0.5
>>        compressibility     =  4.5e-5
>>        ref_p               =  1.0
>>        ;simulated annealing
>>        ;Type of annealing form each temperature group (no/single/periodic)
>>        ;annealing          =   no, no, no, single, no
>>        ;
>>        ;Number of annealing points to use for specifying annealing in
>>        each group
>>        ;annealing_npoints   =  0, 0, 0, 9, 0
>>        ;
>>        ; List of times at the annealing points for each group
>>        ;annealing_time       =  0 25 50 75 100 125 150 175 200
>>        ; Temp.at each annealing point, for each group.
>>        ;annealing_temp      =  300 350 400 450 500 450 400 350 300
>>
>>        *
>>         distance restraints file*
>>
>>         distance_restraints ]
>>        ;       ai      aj      type    index   type'   low     up1
>>    up2     fac
>>        ;TnT240-TnI131, 145, 151, 160, 167  (ca+-7)
>>               2019    3889    1       1       1       3.91    3.91
>>   5.31    0.574679
>>               2019    4056    1       2       1       4.86    4.86
>>   6.26    0.409911
>>               2019    4133    1       3       1       5.69    5.69
>>   7.09    0.457947
>>               2019    4207    1       4       1       6.63    6.63
>>   8.03    0.323852
>>               2019    4273    1       5       1       7.14    7.14
>>   8.54    0.294559
>>        ;TnT276- Tni 131,145,151,160,167,5,17,27,40
>>               2434    3889    1       6       1       1.34    1.34
>>   2.74    4.884769
>>               2434    4056    1       7       1       2.13    2.13
>>   3.53    0.523368
>>               2434    4133    1       8       1       3.66    3.66
>>   5.06    0.409911
>>               2434    4207    1       9       1       4.48    4.48
>>   5.88    0.547825
>>               2434    4273    1       10      1       5.43    5.43
>>   6.83    0.285938
>>               2434    2628    1       11      1       5.89    5.89
>>   7.29    0.241333
>>               2434    2719    1       12      1       4.76    4.76
>>   6.16    0.366358
>>               2434    2824    1       13      1       3.81    3.81
>>   5.21    0.644145
>>               2434    2972    1       14      1       3.10    3.10
>>   4.50    0.431009
>>        ;TnT288- Tni 131,145,151,160,167,5,17,27,40
>>               2557    3889    1       15      1       1.89    1.89
>>   3.29    1.429688
>>               2557    4056    1       16      1       3.25    3.25
>>   4.65    0.32931
>>               2557    4133    1       17      1       4.44    4.44
>>   5.84    0.346847
>>               2557    4207    1       18      1       4.80    4.80
>>   6.20    0.275198
>>               2557    4273    1       19      1       5.84    5.84
>>   7.24    0.200744
>>               2557    2628    1       20      1       4.79    4.79
>>   6.19    1.046736
>>               2557    2719    1       21      1       5.06    5.06
>>   6.46    0.267659
>>        ;       2557    2824    1       22      1
>>               2557    2972    1       23      1       3.99    3.99
>>   5.39    0.412797
>>
>>
>>
>>
>>
>>
>>  ------------------------------------------------------------------------
>>
>>        _______________________________________________
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>>
>>    --    ========================================
>>
>>    Justin A. Lemkul
>>    Ph.D. Candidate
>>    ICTAS Doctoral Scholar
>>    Department of Biochemistry
>>    Virginia Tech
>>    Blacksburg, VA
>>    jalemkul[at]vt.edu <http://vt.edu> | (540) 231-9080
>>    http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
>>
>>    ========================================
>>    _______________________________________________
>>    gmx-users mailing list    gmx-users at gromacs.org
>>    <mailto:gmx-users at gromacs.org>
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>>
>>
>>
>>
>> --
>> Jayasundar Jayant James
>>
>> www.chick.com/reading/tracts/0096/0096_01.asp <
>> http://www.chick.com/reading/tracts/0096/0096_01.asp>)
>>
>>
> --
> ========================================
>
> Justin A. Lemkul
> Ph.D. Candidate
> ICTAS Doctoral Scholar
> Department of Biochemistry
> Virginia Tech
> Blacksburg, VA
> jalemkul[at]vt.edu | (540) 231-9080
> http://www.bevanlab.biochem.vt.edu/Pages/Personal/justin
>
> ========================================
> _______________________________________________
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-- 
Jayasundar Jayant James

www.chick.com/reading/tracts/0096/0096_01.asp)
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