Re: [AMBER] erro: cudaMemcpy GpuBuffer::Download failed an illegal memory access was encountered

From: David A Case <>
Date: Wed, 24 Mar 2021 11:07:13 -0400

On Wed, Mar 24, 2021, Renato Araujo wrote:

>Beyond that, one would need more information to help with debugging. Is
>this happening in the middle of a long simulation, or right at the
>It happens at the beginning of the simulation, between 10 and 20ns.

That helps some, but look at the error: does it happen at very early step,
i.e. within the first 10 steps? You may need to run a short trajectory
with ntpr=1 to get this information.

Also, be sure that you have applied all updates: in particular, not applying
update.8 may lead to instabilities if you are using the ff19SB force field.

...good luck....dac

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Received on Wed Mar 24 2021 - 08:30:02 PDT
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