[AMBER] occasional problem in ABFE in pmemd.cuda

From: Charles-Alexandre Mattelaer via AMBER <amber.ambermd.org>
Date: Wed, 10 Sep 2025 10:59:28 +0200

Hi all

I am facing an occasional error when running legs of ABFE calculations
where I get the following error:
"of length = 42Failed an illegal memory access was encountered"

If i restart the calculation from the beginning without changing input, it
is able to finish. Is it some kind of numerical instability? Can it be
prevented?

I noticed this was reported previously:
http://archive.ambermd.org/202503/0019.html but i could not find this
thread in my mailbox and do not see any follow-up in the archive.

If anyone could provide some feedback, that would be awesome!

Kind regards

Charles-Alexandre Mattelaer
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Received on Wed Sep 10 2025 - 02:30:02 PDT
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