Re: [gmx-users] A question about "blowing up"

2014-03-01 Thread Justin Lemkul
On 3/1/14, 8:26 AM, sujithkakkat . wrote: Hello Justin, Thank you for the comments. While following the free energy calculation in the tutorial, I found that the constrains are switched on , while going from the minimization procedure to the NVT equilibration and the final results were pret

Re: [gmx-users] A question about "blowing up"

2014-03-01 Thread sujithkakkat .
Hello Justin, Thank you for the comments. While following the free energy calculation in the tutorial, I found that the constrains are switched on , while going from the minimization procedure to the NVT equilibration and the final results were pretty accurate. I guess that depends on the type o

Re: [gmx-users] A question about "blowing up"

2014-03-01 Thread Justin Lemkul
On 3/1/14, 7:22 AM, sujith ks wrote: Hello Justin, I performed energy minimization , the way you performed for the free energy calculation for the methane-water system in the tutorial. In the first step steepest descent was used followed by l-bfgs. The emtol (force) was set to 10 kj/mol/nm.

Re: [gmx-users] A question about "blowing up"

2014-03-01 Thread sujith ks
Hello Justin, I performed energy minimization , the way you performed for the free energy calculation for the methane-water system in the tutorial. In the first step steepest descent was used followed by l-bfgs. The emtol (force) was set to 10 kj/mol/nm. The final results can be summerized as:

Re: [gmx-users] A question about "blowing up"

2014-03-01 Thread Justin Lemkul
On 3/1/14, 1:14 AM, sujithkakkat . wrote: Hello, I am following justin lemkul's tutorials for the cyclohexane-water biphasic system using Gromos96 forcefield. Things went well till NVT equilibration where I had this "Blowing up" issue. Shortening the time step alone did not help, and it

[gmx-users] A question about "blowing up"

2014-02-28 Thread sujithkakkat .
Hello, I am following justin lemkul's tutorials for the cyclohexane-water biphasic system using Gromos96 forcefield. Things went well till NVT equilibration where I had this "Blowing up" issue. Shortening the time step alone did not help, and it was difficult for me to figure out what was hap