Re: [gmx-users] Problem of Kinetic Energy

2011-08-04 Thread Mark Abraham
On 4/08/2011 7:17 AM, Size Zheng wrote: Hi Mark, When I used the g_traj with options of -ekt and -ekr, i made a selection as follow Group 0 ( System) has 6400 elements Group 1 (TP4) has 6400 elements Select a group: 1 Selected 1: 'TP4' So according to you that g_

Re: [gmx-users] Problem of Kinetic Energy

2011-08-03 Thread Size Zheng
Hi Mark, When I used the g_traj with options of -ekt and -ekr, i made a selection as follow Group 0 ( System) has 6400 elements Group 1 (TP4) has 6400 elements Select a group: 1 Selected 1: 'TP4' So according to you that g_traj uses the whole 1600-molecules' COM to

Re: [gmx-users] Problem of Kinetic Energy

2011-08-02 Thread Mark Abraham
On 3/08/2011 3:25 PM, Size Zheng wrote: Hi, there, I simulate a simple system of pure water with rigid TIP4P model in NVT at 273K. Why the total kinetic energy, reported from g_energy, is not equal to the sum of the rotational kinetic energy and the translational kinetic energy, which are obtai

[gmx-users] Problem of Kinetic Energy

2011-08-02 Thread Size Zheng
Hi, there, I simulate a simple system of pure water with rigid TIP4P model in NVT at 273K. Why the total kinetic energy, reported from g_energy, is not equal to the sum of the rotational kinetic energy and the translational kinetic energy, which are obtained from g_traj with options of -ekt and -