Re: [gmx-users] Re: the Pressure control in GROMACS 4.0.7

2010-07-10 Thread David van der Spoel
On 2010-07-10 15.56, zhongjin wrote: Dear users: I am simulating a CNT in water. In the energy minimization step, I restrain the CNT by a constant 10e8,because I don't want the CNT to deform. After minimization,the energy is -44054.835938. Then NVT and NPT equilibration , at this step,the end C a

[gmx-users] Re: the Pressure control in GROMACS 4.0.7

2010-07-10 Thread zhongjin
Dear users:   I am simulating a CNT in water. In the energy minimization step, I   restrain the CNT by a constant 10e8,because I don't want the CNT to deform. After minimization,the energy is -44054.835938. Then NVT and NPT equilibration , at this step,the end C atoms are fixed by a constant 3

Re: [gmx-users] Re: the Pressure control in GROMACS 4.0.7

2010-07-10 Thread David van der Spoel
On 2010-07-10 09.47, Vitaly Chaban wrote: Dear users, I think the pressure control in gromacs 4.0.7 may have some problems. First ,The pressure value>fluctuates widely ,even between -7984.377930 and 5920.053711 bar.Second,the average pressure>sometimes is much larger than what I have set,for

[gmx-users] Re: the Pressure control in GROMACS 4.0.7

2010-07-10 Thread Vitaly Chaban
> Dear users, >  I think the pressure control in gromacs 4.0.7 may have some problems. First > ,The pressure value >fluctuates widely ,even between -7984.377930 and > 5920.053711 bar.Second,the average pressure >sometimes is much larger than > what I have set,for example, I have set ref_p  = 1.0