[AMBER] Error while running minimization

From: AMANPREET KAUR via AMBER <amber.ambermd.org>
Date: Mon, 8 Apr 2024 11:10:02 +0530

Hlo Amber community,
I was running the minimization of protein with 20,000 cycles but after 250
steps it is not showing any data for EEL and Vdw so I have reduced it to
250 steps but still for minimization of the whole system the error exists
for the box size.
Where in the input file I should make changes to solve the error. I am
giving a glimpse of input and output data obtained . Any other file data or
file needed please let me know.

Here is the input file:
initial minimisation of solvent

&cntrl

imin=1, maxcyc=250, ntmin = 2,

ntx = 1, ntc = 1, ntf = 1,

ntb = 2, ntp = 1, ncyc = 500,

ntwx = 500, ntpr = 250,

ntr = 1, cut = 10.0

/

Hold the protein fixed

500.0

RES 1 311

END

END
and In the *ATOMIC COORDINATES AND VELOCITIES*

default_name

 begin time read from input coords = 0.000 ps

 Number of triangulated 3-point waters found: 104554

     Sum of charges from parm topology file = -11.00100112
     Assuming uniform neutralizing plasma
*results*
      APPROXIMATING switch and d/dx switch using CUBIC SPLINE INTERPOLATION
 using 5000.0 points per unit in tabled values
 TESTING RELATIVE ERROR over r ranging from 0.0 to cutoff
| CHECK switch(x): max rel err = 0.2738E-14 at 2.422500
| CHECK d/dx switch(x): max rel err = 0.8314E-11 at 2.736960
   Thanks
Amanpreet Kaur
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Received on Sun Apr 07 2024 - 23:00:01 PDT
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