<table cellspacing="0" cellpadding="0" border="0" ><tr><td valign="top" style="font: inherit;">Hi,<br><br>I am using MPICH2 library for gromacs. <br><br>Thanks and Regards<br><br><font style="font-style: italic; color: rgb(255, 0, 0); font-weight: bold;" size="4"><span style="font-family: times new roman,new york,times,serif;">Syed Tarique Moin<br><br></span></font></td></tr></table><br>