<FONT face="Default Sans Serif,Verdana,Arial,Helvetica,sans-serif" size=2><DIV><DIV style="DIRECTION: ltr">Hi all,<BR><BR>The mdrun stopped after 2.6nS after writing this error:<BR>Step 1321571, time 2643.14 (ps) LINCS WARNING<BR>relative constraint deviation after LINCS:<BR>max 2.814066 (between atoms 2742 and 2745) rms 0.041434<BR>bonds that rotated more than 30 degrees:<BR> atom 1 atom 2 angle previous, current, constraint length<BR> 2742 2743 90.1 0.1728 0.0946 0.1000<BR> 2742 2744 90.0 0.1010 0.2410 0.1000<BR> 2742 2745 90.0 0.1675 0.3814 0.1000<BR><BR>like this for 100s of times..<BR><BR>here is the md.mdp file:<BR>cpp = cpp<BR>include = -I../top<BR>define =<BR>integrator = md<BR>dt = 0.002<BR>comm_grps = Protein<BR>nstcomm = 1<BR>nsteps = 2500000<BR>nstxout = 5000<BR>nstvout = 5000<BR>nstlog = 5000<BR>nstenergy = 500<BR>nstxtcout = 250<BR>xtc_grps = Protein<BR>energygrps = Protein non-protein<BR>nstlist = 10<BR></DIV><DIV> </DIV><DIV><BR><DIV>Blaise Mathias Costa, PhD<BR>Department of Pharmacology and Experimental Neuroscience<BR>University of Nebraska Medical Center<BR>Omaha, NE 68198-5800, USA.<BR>Tel: 001 402 559 7132 <BR></DIV></DIV></FONT>