[gmx-users] help to solve this problem

[Justin Lemkul]

On 11/19/14 12:37 PM, valiente wrote:
> Dear gromacs users:
> I'm trying to run a MD simulation using gromacs 4.6.5 in a cluster but when I
> submit my job using the following script:
>
> /bin/bash
> #Name of your job
> #PBS -N PlmII+Inhibitor_free
> #number of nodes you are using
> #PBS -l nodes=8
> #time
> #PBS -l walltime=48:00:00
> #which queue you are submitting to
> #PBS -q  qwork at mp2
>
>
> # go to our working directory
> cd $PBS_O_WORKDIR
>
> # add module
> module rm mvapich2_intel64/1.6_ofed
> module add openmpi_intel64/1.4.3_ofed
> module rm gromacs64/4.5.4_ompi
> module add gromacs64/4.6.5_ompi
>
> # choose mpi-tasks per node *** there are 24 cores/node
> export ppn=24
>
> # set your executable file
> myExe=`which mdrun_mpi`
>
> # start the application
> export RUN_NAME=PlmII+Inhibitor_free
> export P4_GLOBMEMSIZE=200000000
> #export OPTIONS=" -cpi PlmII+Inhibitor_free.cpt -dlb yes"
> #export  OPTIONS=" -cpi prot_md.cpt -dlb yes"
>
> #actual command line
> mpiexec -n $[PBS_NUM_NODES*ppn] -npernode $ppn $myExe -deffnm $RUN_NAME $OPTIONS
>
> echo "Job finished at: `date`"
>
> #########################################################
>
> 5000000 steps,  50000.0 ps.
> [cp1854:24892] *** Process received signal ***
> [cp1854:24892] Signal: Segmentation fault (11)
> [cp1854:24892] Signal code:  (128)
> [cp1854:24892] Failing at address: (nil)
> [cp1854:24892] [ 0] /lib64/libpthread.so.0() [0x3e6480f710]
> [cp1854:24892] [ 1]
> /opt/gromacs64/4.6.5/bin/../lib/libmd_mpi.so.8(nbnxn_kernel_simd_4xn_tab_comb_lb_energrp+0x4183)
> [0x2b4214b3b7c3]
> [cp1854:24892] [ 2]
> /opt/gromacs64/4.6.5/bin/../lib/libmd_mpi.so.8(nbnxn_kernel_simd_4xn+0x4b1)
> [0x2b4214bb9951]
> [cp1854:24892] [ 3]
> /opt/intel/composerxe-2011.5.220/compiler/lib/intel64/libiomp5.so(__kmp_invoke_microtask+0x93)
> [0x2b4217dfbb83]
> [cp1854:24892] *** End of error message ***
> --------------------------------------------------------------------------
> mpiexec noticed that process rank 0 with PID 24892 on node cp1854 exited on
> signal 11 (Segmentation fault).
>

Your simulation is crashing.  Check the .log file for any hints, but otherwise 
run locally or interactively to diagnose.

-Justin

-- 
==================================================

Justin A. Lemkul, Ph.D.
Ruth L. Kirschstein NRSA Postdoctoral Fellow

Department of Pharmaceutical Sciences
School of Pharmacy
Health Sciences Facility II, Room 629
University of Maryland, Baltimore
20 Penn St.
Baltimore, MD 21201

jalemkul at outerbanks.umaryland.edu | (410) 706-7441
http://mackerell.umaryland.edu/~jalemkul

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