[AMBER-Developers] pmemd.cuda errors

From: Jason Swails <jason.swails.gmail.com>
Date: Sat, 6 Mar 2010 10:54:14 -0500

Hello,

I'm getting some pretty strange behavior from pmemd.cuda. I'm
restarting from a restrt file created by a pmemd.cuda that a month or
two ago, and when I do, every statement printed to the mdout looks
like this:

 NSTEP = 1000 TIME(PS) = 18602.000 TEMP(K) = NaN PRESS = 0.0
 Etot = NaN EKtot = NaN EPtot = 279370.1445
 BOND = 0.0000 ANGLE = 309468.3554 DIHED = 0.0000
 1-4 NB = 0.0000 1-4 EEL = 0.0000 VDWAALS = 0.0000
 EELEC = 0.0000 EGB = -30098.2109 RESTRAINT = 0.0000
 ------------------------------------------------------------------------------

Also, the restart of that simulation has "NaN" for every coordinate of
every atom. Is this expected behavior? The tesla I'm using has cuda
2.3 installed.

Thanks!
Jason

-- 
---------------------------------------
Jason M. Swails
Quantum Theory Project,
University of Florida
Ph.D. Graduate Student
352-392-4032
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Received on Sat Mar 06 2010 - 08:00:03 PST
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