Re: [gmx-users] GROMACS not scaling well with Core4 Quad technology CPUs

2007-06-02 Thread Trevor Marshall
Thanks to Yang Ye, Erik, Mark, I appreciate your help a few days ago. I found a clear answer to the communication congestion in the citation given by Yang Ye, to Carsten Kutzner's Powerpoint presentation at URL http://wwwuser.gwdg.de/%7Eckutzne/talks/kutzner04talk-gromacs.pdf Page 21 has a sli

Re: [gmx-users] protein-DNA simulation with Amber port

2007-06-02 Thread Yang Ye
You need to put the atom types defined in ffamber under [ atoms ] as replacement of original 1 amber99_54 1 SOL OW 1 -0.82 15.99940 2 amber99_55 1 SOLHW1 1 0.41 1.00800 3 amber99_55 1 SOLHW2 1 0.41 1.00800 It is good to em

Re: [gmx-users] Coordinates in hdel.top and hdel.gro not matching

2007-06-02 Thread Erik Marklund
2 jun 2007 kl. 08.59 skrev David van der Spoel: Alaguraj Veluchamy wrote: Dear gmx-users, I am trying to simulate protein-DNA complex and i am using AMBER port for ForceField. I have edited my PDB and spc.itp to suit parameters. While preprocessing the following error is shown. The number

Re: [gmx-users] combination rules

2007-06-02 Thread David van der Spoel
priyanka srivastava wrote: Dear Mark, Thanx for your reply. Chapter 5 describes it, but I guess that is described in a more general way! GORMOS87 uses a different kind of scaling which is not mentioned in chapter 5 and hence I am just curious to know whether GROMOS96 also uses same scaling sc

Re: [gmx-users] combination rules

2007-06-02 Thread priyanka srivastava
Dear Mark, Thanx for your reply. Chapter 5 describes it, but I guess that is described in a more general way! GORMOS87 uses a different kind of scaling which is not mentioned in chapter 5 and hence I am just curious to know whether GROMOS96 also uses same scaling scheme as is used for GROMOS87 o

Re: [gmx-users] Coordinates in hdel.top and hdel.gro not matching

2007-06-02 Thread David van der Spoel
Alaguraj Veluchamy wrote: Dear gmx-users, I am trying to simulate protein-DNA complex and i am using AMBER port for ForceField. I have edited my PDB and spc.itp to suit parameters. While preprocessing the following error is shown. The number of atoms in .top and .gro files are not matching. It