CUDA error memcpy to exclusions: invalid argument

From: Haleh Abdizadeh (
Date: Tue Aug 27 2013 - 04:06:29 CDT

Hello everybody,

I am trying to run a namd simulation on a 80000 atoms system including a
huge protein, water molecules and ions on a linux server using ++local
/usr/local/NAMD_2.7_Linux-x86_64-CUDA/namd2 +idlepoll +devices 0 *.conf >
*. txt using varying number of CPUs. When I try to use CUDA I get the
following message :
CUDA error memcpy to exclusions: invalid argument

the error discription in output file is as follows :
23872 bytes of CUDA constant memory needed for exclusions

So I tried my job on different machines with maximum 3029592 B memory but
this time I get the error :

the error in output file asks to specify cutoff distance and exclude.

Although my conf file is completely correct and I can run it when I do not
use CUDA.
Could anyone please help me with this problem?
Thank you.


This archive was generated by hypermail 2.1.6 : Wed Dec 31 2014 - 23:21:34 CST