[AMBER] AMBER error vlimit exceed for step

From: VERONICA MARTIN HERNANDEZ via AMBER <amber.ambermd.org>
Date: Fri, 8 Mar 2024 16:20:24 +0000

Hi everyone

I was performing TI calculations and the minimization went well, with the following output:

                    FINAL RESULTS


| TI region 1



   NSTEP ENERGY RMS GMAX NAME NUMBER
 ****** -1.3744E+05 7.8915E-03 5.6513E-01 H2 24706

 BOND = 11603.4879 ANGLE = 22.1290 DIHED = 21.1698
 VDWAALS = 33301.1213 EEL = -182346.6482 HBOND = 0.0000
 1-4 VDW = 6.6181 1-4 EEL = -46.4153 RESTRAINT = 0.0000
 DV/DL = -22.0427
  Softcore part of the system: 2 atoms, TEMP(K) = 0.00
 SC_Etot= 0.0000 SC_EKtot= 0.0000 SC_EPtot = 1.7742
 SC_BOND= 0.0025 SC_ANGLE= 0.0554 SC_DIHED = 0.0021
 SC_14NB= 0.0000 SC_14EEL= 0.0000 SC_VDW = -0.0011
 SC_EEL = 1.7154
 SC_RES_DIST= 0.0000 SC_RES_ANG= 0.0000 SC_RES_TORS= 0.0000
 SC_EEL_DER= 0.4021 SC_VDW_DER= 0.1780 SC_DERIV = 0.5801
 ------------------------------------------------------------------------------


| TI region 2



   NSTEP ENERGY RMS GMAX NAME NUMBER
 ****** -1.3744E+05 7.8915E-03 5.6513E-01 H2 24706

 BOND = 11603.4879 ANGLE = 22.1290 DIHED = 21.1698
 VDWAALS = 33301.1213 EEL = -182346.6482 HBOND = 0.0000
 1-4 VDW = 6.6181 1-4 EEL = -46.4153 RESTRAINT = 0.0000
 DV/DL = -22.0427
  Softcore part of the system: 2 atoms, TEMP(K) = 0.00
 SC_Etot= 0.0000 SC_EKtot= 0.0000 SC_EPtot = 0.9330
 SC_BOND= 0.0003 SC_ANGLE= 0.2909 SC_DIHED = 0.0021
 SC_14NB= 0.0000 SC_14EEL= 0.0000 SC_VDW = -0.0075
 SC_EEL = 0.6472
 SC_RES_DIST= 0.0000 SC_RES_ANG= 0.0000 SC_RES_TORS= 0.0000
 SC_EEL_DER= 0.4021 SC_VDW_DER= 0.1780 SC_DERIV = 0.5801


But when I perform the equilibration step (I do it with pmemd and cpus) I have always got the error of vlimit exceed for step, even from step 0.

How can I solve it?

Thanks in advance
Vero
_______________________________________________
AMBER mailing list
AMBER.ambermd.org
http://lists.ambermd.org/mailman/listinfo/amber
Received on Fri Mar 08 2024 - 08:30:02 PST
Custom Search