[AMBER] Gpu illegal memory code accessed

From: Debarati DasGupta <debarati_dasgupta.hotmail.com>
Date: Wed, 20 Mar 2019 14:39:25 +0000

Any help on this error code?

I could not understand what went wrong.
Thanks
Debarati


Hostname = grape5
Date = Wed Mar 20 10:25:24 EDT 2019
SLURM_GPUFILE ...
gpuNum=
ERROR: Calculation halted. Periodic box dimensions have changed too much from their initial values.
  Your system density has likely changed by a large amount, probably from
  starting the simulation from a structure a long way from equilibrium.

  [Although this error can also occur if the simulation has blown up for some reason]

  The GPU code does not automatically reorganize grid cells and thus you
  will need to restart the calculation from the previous restart file.
  This will generate new grid cells and allow the calculation to continue.
  It may be necessary to repeat this restarting multiple times if your system
  is a long way from an equilibrated density.

  Alternatively you can run with the CPU code until the density has converged
  and then switch back to the GPU code.

  The GPU code does not automatically reorganize grid cells and thus you
  will need to restart the calculation from the previous restart file.
  This will generate new grid cells and allow the calculation to continue.
  It may be necessary to repeat this restarting multiple times if your system
  is a long way from an equilibrated density.

  Alternatively you can run with the CPU code until the density has converged
  and then switch back to the GPU code.

cudaMemcpy GpuBuffer::Download failed an illegal memory access was encountered
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Received on Wed Mar 20 2019 - 08:00:02 PDT
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