[gmx-users] Gromacs 2019.4 - cudaStreamSynchronize failed issue

Szilárd Páll pall.szilard at gmail.com
Wed Dec 4 21:14:32 CET 2019


The fact that you are observing errors alo the energies to be off by so
much and that it reproduces with multiple inputs suggest that this may not
a code issue. Did you do all runs that failed on the same hardware? Have
you excluded the option that one of those GeForce cards may be flaky?

--
Szilárd


On Wed, Dec 4, 2019 at 7:47 PM Chenou Zhang <czhan178 at asu.edu> wrote:

> We tried the same gmx settings in 2019.4 with different protein systems.
> And we got the same weird potential energy jump  within 1000 steps.
>
> ```
>
> Step           Time
>               0        0.00000
>  Energies (kJ/mol)
>            Bond            U-B    Proper Dih.  Improper Dih.      CMAP Dih.
>     2.08204e+04    9.92358e+04    6.53063e+04    1.06706e+03   -2.75672e+02
>           LJ-14     Coulomb-14        LJ (SR)   Coulomb (SR)   Coul. recip.
>     1.50031e+04   -4.86857e+04    3.10386e+04   -1.09745e+06    4.81832e+03
>       Potential    Kinetic En.   Total Energy  Conserved En.    Temperature
>    -9.09123e+05    2.80635e+05   -6.28487e+05   -6.28428e+05    3.04667e+02
>  Pressure (bar)   Constr. rmsd
>    -1.56013e+00    3.60634e-06
>
> DD  step 999 load imb.: force 14.6%  pme mesh/force 0.581
>            Step           Time
>            1000        2.00000
>
> Energies (kJ/mol)
>            Bond            U-B    Proper Dih.  Improper Dih.      CMAP Dih.
>     2.04425e+04    9.92768e+04    6.52873e+04    1.02016e+03   -2.45851e+02
>           LJ-14     Coulomb-14        LJ (SR)   Coulomb (SR)   Coul. recip.
>     1.49863e+04   -4.91092e+04    3.10572e+04   -1.09508e+06    4.97942e+03
>       Potential    Kinetic En.   Total Energy  Conserved En.    Temperature
>     1.35726e+35    2.77598e+05    1.35726e+35    1.35726e+35    3.01370e+02
>  Pressure (bar)   Constr. rmsd
>    -7.55250e+01    3.63239e-06
>
>  DD  step 1999 load imb.: force 16.1%  pme mesh/force 0.598
>            Step           Time
>            2000        4.00000
>
> Energies (kJ/mol)
>            Bond            U-B    Proper Dih.  Improper Dih.      CMAP Dih.
>     1.99521e+04    9.97482e+04    6.49595e+04    1.00798e+03   -2.42567e+02
>           LJ-14     Coulomb-14        LJ (SR)   Coulomb (SR)   Coul. recip.
>     1.50156e+04   -4.85324e+04    3.01944e+04   -1.09620e+06    4.82958e+03
>       Potential    Kinetic En.   Total Energy  Conserved En.    Temperature
>     1.35726e+35    2.79206e+05    1.35726e+35    1.35726e+35    3.03115e+02
>  Pressure (bar)   Constr. rmsd
>    -5.50508e+01    3.64353e-06
>
> DD  step 2999 load imb.: force 16.6%  pme mesh/force 0.602
>            Step           Time
>            3000        6.00000
>
>
> Energies (kJ/mol)
>            Bond            U-B    Proper Dih.  Improper Dih.      CMAP Dih.
>     1.98590e+04    9.88100e+04    6.50934e+04    1.07048e+03   -2.38831e+02
>           LJ-14     Coulomb-14        LJ (SR)   Coulomb (SR)   Coul. recip.
>     1.49609e+04   -4.93079e+04    3.12273e+04   -1.09582e+06    4.83209e+03
>       Potential    Kinetic En.   Total Energy  Conserved En.    Temperature
>     1.35726e+35    2.79438e+05    1.35726e+35    1.35726e+35    3.03367e+02
>  Pressure (bar)   Constr. rmsd
>     7.62438e+01    3.61574e-06
>
> ```
>
> On Mon, Dec 2, 2019 at 2:13 PM Mark Abraham <mark.j.abraham at gmail.com>
> wrote:
>
> > Hi,
> >
> > What driver version is reported in the respective log files? Does the
> error
> > persist if mdrun -notunepme is used?
> >
> > Mark
> >
> > On Mon., 2 Dec. 2019, 21:18 Chenou Zhang, <czhan178 at asu.edu> wrote:
> >
> > > Hi Gromacs developers,
> > >
> > > I'm currently running gromacs 2019.4 on our university's HPC cluster.
> To
> > > fully utilize the GPU nodes, I followed notes on
> > >
> > >
> >
> http://manual.gromacs.org/documentation/current/user-guide/mdrun-performance.html
> > > .
> > >
> > >
> > > And here is the command I used for my runs.
> > > ```
> > > gmx mdrun -v -s $TPR -deffnm md_seed_fixed -ntmpi 8 -pin on -nb gpu
> > -ntomp
> > > 3 -pme gpu -pmefft gpu -npme 1 -gputasks 00112233 -maxh $HOURS -cpt 60
> > -cpi
> > > -noappend
> > > ```
> > >
> > > And for some of those runs, they might fail with the following error:
> > > ```
> > > -------------------------------------------------------
> > >
> > > Program:     gmx mdrun, version 2019.4
> > >
> > > Source file: src/gromacs/gpu_utils/cudautils.cuh (line 229)
> > >
> > > MPI rank:    3 (out of 8)
> > >
> > >
> > >
> > > Fatal error:
> > >
> > > cudaStreamSynchronize failed: an illegal memory access was encountered
> > >
> > >
> > >
> > > For more information and tips for troubleshooting, please check the
> > GROMACS
> > >
> > > website at http://www.gromacs.org/Documentation/Errors
> > > ```
> > >
> > > we also had a different error from slurm system:
> > > ```
> > > ^Mstep 4400: timed with pme grid 96 96 60, coulomb cutoff 1.446: 467.9
> > > M-cycles
> > > ^Mstep 4600: timed with pme grid 96 96 64, coulomb cutoff 1.372: 451.4
> > > M-cycles
> > > /var/spool/slurmd/job2321134/slurm_script: line 44: 29866 Segmentation
> > > fault      gmx mdrun -v -s $TPR -deffnm md_seed_fixed -ntmpi 8 -pin on
> > -nb
> > > gpu -ntomp 3 -pme gpu -pmefft gpu -npme 1 -gputasks 00112233 -maxh
> $HOURS
> > > -cpt 60 -cpi -noappend
> > > ```
> > >
> > > We first thought this could due to compiler issue and tried different
> > > settings as following:
> > > ===test1===
> > > <source>
> > > module load cuda/9.2.88.1
> > > module load gcc/7.3.0
> > > . /home/rsexton2/Library/gromacs/2019.4/test1/bin/GMXRC
> > > </source>
> > > ===test2===
> > > <source>
> > > module load cuda/9.2.88.1
> > > module load gcc/6x
> > > . /home/rsexton2/Library/gromacs/2019.4/test2/bin/GMXRC
> > > </source>
> > > ===test3===
> > > <source>
> > > module load cuda/9.2.148
> > > module load gcc/7.3.0
> > > . /home/rsexton2/Library/gromacs/2019.4/test3/bin/GMXRC
> > > </source>
> > > ===test4===
> > > <source>
> > > module load cuda/9.2.148
> > > module load gcc/6x
> > > . /home/rsexton2/Library/gromacs/2019.4/test4/bin/GMXRC
> > > </source>
> > > ===test5===
> > > <source>
> > > module load cuda/9.1.85
> > > module load gcc/6x
> > > . /home/rsexton2/Library/gromacs/2019.4/test5/bin/GMXRC
> > > </source>
> > > ===test6===
> > > <source>
> > > module load cuda/9.0.176
> > > module load gcc/6x
> > > . /home/rsexton2/Library/gromacs/2019.4/test6/bin/GMXRC
> > > </source>
> > > ===test7===
> > > <source>
> > > module load cuda/9.2.88.1
> > > module load gccgpu/7.4.0
> > > . /home/rsexton2/Library/gromacs/2019.4/test7/bin/GMXRC
> > > </source>
> > >
> > > However we still ended up with the same errors showed above. Does
> anyone
> > > know where does the cudaStreamSynchronize come in? Or am I wrongly
> using
> > > those gmx gpu commands?
> > >
> > > Any input will be appreciated!
> > >
> > > Thanks!
> > > Chenou
> > > --
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