Re: [AMBER] error in md simulation in pmemd.cuda.MPI

From: Ross Walker <ross.rosswalker.co.uk>
Date: Mon, 21 Jul 2014 08:32:16 -0700

Hi Paul,

Your copy of AMBER 12 has not been updated. You need to update things with
the latest bugfixes and updates to support Kepler GPUs. (I'd also always
recommend running on a single GPU and get that working before trying to
use several of them at once - you'll get the best throughput if you run
three simulations, one on each GPU rather than trying to run one
calculation across three GPUs - chances are the 3 GPU run which actually
be slower than just using 1 GPU for K20s).

You should do the following:

cd $AMBERHOME
make clean
./update_amber --update (repeat this command until it responds that
there are no more updates to apply)

Then do a full recompile and you should be good to go.

All the best
Ross



On 7/21/14, 7:07 AM, "Subrata Paul" <paul.subrata34.gmail.com> wrote:

>Dear Sir/madam
>
>WE HAVE RUN THE FOLLOWING COMMAND TO RUN AMBER12 SIMULATON USING
>pmemd.cuda.MPI FOR TWO NVIDIA K20M GPU. BUT WE GETTING FOLLOWING ERROR
> in NO2
>
>#export AMBERHOME=/opt/testamber/amber12/:$AMBERHOME
>#export DO_PARALLEL="mpirun -np 3"
>#mpirun -np 3 /opt/testamber/amber12/bin/pmemd.cuda.MPI -O -i
>density-eqm.in
>-o density-eqm.out -p peptide-wat.prmtop -c heat-final-300K-0t.rst -r
>density-eqm.rst -x density-eqm.mdcrd
>
>
>NO 2: ERROR
>Currently only GPU SM Revisions 1.3 and 2.X are supported.
>Currently only GPU SM Revisions 1.3 and 2.X are supported.
>Currently only GPU SM Revisions 1.3 and 2.X are supported.
>===========================================================
>= BAD TERMINATION OF ONE OF YOUR APPLICATION PROCESSES
>= PID 1088 RUNNING AT localhost.localdomain
>= EXIT CODE: 255
>= CLEANING UP REMAINING PROCESSES
>= YOU CAN IGNORE THE BELOW CLEANUP MESSAGES
>
>
>
>Nvidia GPU K20m CARD DETAILS
>Detected 2 CUDA Capable device(s)
>Device 0: "Tesla K20m"
>CUDA Driver Version / Runtime Version
>6.0 / 6.0
>CUDA Capability Major/Minor version number: 3.5
>Total amount of global memory:
>4800 MBytes (5032706048 bytes)
>(13) Multiprocessors, (192) CUDA Cores/MP: 2496 CUDA Cores
>GPU Clock rate:
>706 MHz (0.71 GHz)
>Memory Clock rate:
>2600 Mhz
>Device 1: "Tesla K20m"
>CUDA Driver Version / Runtime Version
>6.0 / 6.0
>CUDA Capability Major/Minor version number: 3.5
>Total amount of global memory:
>4800 MBytes (5032706048 bytes)
>(13) Multiprocessors, (192) CUDA Cores/MP: 2496 CUDA Cores
>GPU Clock rate:
>706 MHz (0.71 GHz)
>deviceQuery, CUDA Driver = CUDART, CUDA Driver Version = 6.0, CUDA Runtime
>Version = 6.0,
>NumDevs = 2, Device0 = Tesla K20m, Device1 = Tesla K20m
>Result = PASS
>
>we have attached the error and device details in the attached file.
>
>please suggest some solution .
>
>--
>
>
>
>
>
>*With Best RegardsSubrata PhD StudentDept of Chemistry.IIT G*
>_______________________________________________
>AMBER mailing list
>AMBER.ambermd.org
>http://lists.ambermd.org/mailman/listinfo/amber



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Received on Mon Jul 21 2014 - 09:00:03 PDT
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