<html><head><style type="text/css"><!-- DIV {margin:0px;} --></style></head><body><div style="font-family:times new roman,new york,times,serif;font-size:12pt">Hi ALL,<br><br>I have a system of beads with which I ran a CGMD (coarse grained MD) using NAMD. Now I want to do a PCA analysis of this system using GROMACS. So I converted the trajectory in .trr format and made an index file of the entire system (45 beads). But now when I try to run g_covar using the group consisting the entire system, for least square fit and covariance analysis, it is giving Segmentation Fault. Am I doing anything wrong. Any suggestion is welcome.<br><br>Regards,<br><div> </div><div><font color="#0000bf" size="4"></font> </div><div style="color: rgb(0, 0, 191);"><strong>Anirban Ghosh</strong></div><div style="color: rgb(0, 0, 191);"><strong>Grade Based Engineer<br>Bioinformatics Team<br>Centre for Development of Advanced Computing (C-DAC)<br>Pune,
India<br></strong></div><div><br></div></div><br>
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