Re: [gmx-users] Error in energy minimization

2012-12-17 Thread Kieu Thu Nguyen
Thank Justin ! On Tue, Dec 18, 2012 at 7:20 AM, Justin Lemkul wrote: > > > On 12/17/12 7:17 PM, Kieu Thu Nguyen wrote: > >> Dear All, >> >> When i do step EM, the output file .gro is separated into many step.pdb >> files . And many errors "Water molecule starting at atom XXX can not be >> sett

Re: [gmx-users] Error in energy minimization

2012-12-17 Thread Justin Lemkul
On 12/17/12 7:17 PM, Kieu Thu Nguyen wrote: Dear All, When i do step EM, the output file .gro is separated into many step.pdb files . And many errors "Water molecule starting at atom XXX can not be settled" appears. And the potential energy is positive ! What should i do to solve it ? Pl

Re: [gmx-users] Error in Energy Minimization

2007-01-16 Thread Mark Abraham
Sunny wrote: Hi, Continue to the energy minimization problem. I use l-bfgs to run the energy minimization for the structure summarized in the previous message below. The em output topology confout.gro doesn't contain velocity data. Then, I try to convert confout.gro into .pdb format by: As

Re: [gmx-users] Error in Energy Minimization

2007-01-16 Thread Tsjerk Wassenaar
Hi Sunny, With energy minimization there are no velocities. Tsjerk -- Tsjerk A. Wassenaar, Ph.D. Junior UD (post-doc) Biomolecular NMR, Bijvoet Center Utrecht University Padualaan 8 3584 CH Utrecht The Netherlands P: +31-30-2539931 F: +31-30-2537623

Re: [gmx-users] Error in Energy Minimization

2007-01-16 Thread Sunny
eorge From: "Sunny" <[EMAIL PROTECTED]> Reply-To: Discussion list for GROMACS users To: gmx-users@gromacs.org Subject: Re: [gmx-users] Error in Energy Minimization Date: Tue, 16 Jan 2007 15:28:13 + Hi Tsjerk, The system has 1 protein (118 atoms) and 256 DPPC lipids (12800 at

Re: [gmx-users] Error in Energy Minimization

2007-01-16 Thread Sunny
-Protein : 12800 atoms 12 DPP : 12800 atoms 13 Other : 12800 atoms George From: "Tsjerk Wassenaar" <[EMAIL PROTECTED]> Reply-To: Discussion list for GROMACS users To: "Discussion list for GROMACS users" Subject: Re: [gmx-users] Error i

Re: [gmx-users] Error in Energy Minimization

2007-01-16 Thread Tsjerk Wassenaar
Hi George, You didn't mention whether this was with or without solvent. This is probably due to an error in your starting structure, and I advice to check it carefully. Also, if you're running in solvent, check your box. Step= 57, Dmax= 4.3e-03 nm, Epot= -1.79963e+23 Fmax= inf, atom=

Re: [gmx-users] Error in Energy Minimization

2007-01-16 Thread Mark Abraham
Sunny wrote: Hi, I have the following error when running energy minimization (integrator=steep): (similar message occurs serveral times in previous steps as for Step 57) ... ... ... ... I'd like to know if there is any method to let this EM run. Probably the problem is with your starting st

[gmx-users] Error in Energy Minimization

2007-01-16 Thread Sunny
Hi, I have the following error when running energy minimization (integrator=steep): (similar message occurs serveral times in previous steps as for Step 57) ... ... ... ... Step 57, time 0.114 (ps) LINCS WARNING relative constraint deviation after LINCS: max 110.960770 (between atoms 1576 and