[AMBER] Amber 14, sander.MPI, NaN

From: Starovoytov, Oleg <ostarovo.Central.UH.EDU>
Date: Tue, 8 Dec 2015 14:38:07 -0600

Hello,

I have a problem running amber 14 (sander.MPI) for
the box of POL3 water (nat=216).

Here is the input:

 &cntrl
   igb = 0, imin = 0, ntx = 1, irest = 0,
   ntb = 2, cut = 7,
   ntpr = 100, ntwx = 100, ntwr = 100,
   nstlim = 500, dt = 0.002,
   ntc = 2, ntf = 2, iwrap = 1,
   ntt = 3, gamma_ln=1.0,
   tempi = 278.15, temp0 = 278.15,
   tautp = 0.5, ig = -1, vlimit = 10.0,
   ntp = 1, taup = 1.0,
   nmropt = 0,
   ipol = 1,
 /
 &ewald
   indmeth=3, diptol=1.0d-4, skinnb = 2.0,
   nbflag =1, dipmass=1.0, diptau = 8.0,
 /

and output:


 NSTEP = 0 TIME(PS) = 0.000 TEMP(K) = 404.76 PRESS = NaN
 Etot = NaN EKtot = 521.2033 EPtot = NaN
 BOND = 0.0000 ANGLE = 0.0000 DIHED = 0.0000
 1-4 NB = 0.0000 1-4 EEL = 0.0000 VDWAALS = 633.4383
 EELEC = NaN EHBOND = 0.0000 RESTRAINT = 0.0000
 EKCMT = 161.6262 VIRIAL = NaN VOLUME = 6478.5455
 EPOLZ = NaN
 Dipole convergence: rms = NaN temperature = 0.00
                                                    Density = 0.9974

What might be the problem?

Thank you so much for any help.
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Received on Tue Dec 08 2015 - 13:00:03 PST
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