<DIV>Dear gmxers,</DIV>
<DIV>We have installed gmx-4.5.4 on one cluster from the source, without any errors. I can also run mdrun in non-parallel way successful. However, when I run mdrun in parallel way as follows:</DIV>
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<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT color=#ff0000 face="Times New Roman">mpimdrun -h</FONT></SPAN></P>some messages are given:</DIV>
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<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT color=#ff0000 face="Times New Roman">[node10:03709] mca: base: component_find: unable to open /public/software/mpi/openmpi1.4-gnu/lib/openmpi/mca_btl_ofud: perhaps a missing symbol, or compiled for a different version of Open MPI? (ignored)</FONT></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT color=#ff0000 face="Times New Roman">[node10:03709] mca: base: component_find: unable to open /public/software/mpi/openmpi1.4-gnu/lib/openmpi/mca_btl_openib: perhaps a missing symbol, or compiled for a different version of Open MPI? (ignored)</FONT></SPAN></P>
<P style="MARGIN: 0cm 0cm 0pt" class=MsoNormal><SPAN lang=EN-US><FONT color=#ff0000 face="Times New Roman">NNODES=1, MYRANK=0, HOSTNAME=node10</FONT></SPAN></P></DIV>
<DIV>What does it mean by saying so? Could you give me some hints for dealing with it? </DIV>
<DIV>Thanks a lot for any reply.</DIV>
<DIV>Dr. Chaofu Wu</DIV>
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<DIV><I style="mso-bidi-font-style: normal"><SPAN style="LINE-HEIGHT: 200%; FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang=EN-US>Hunan </SPAN><SPAN style="LINE-HEIGHT: 200%; FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA" lang=EN-US>University of </SPAN><SPAN style="LINE-HEIGHT: 200%; FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: ZH-CN; mso-bidi-language: AR-SA" lang=EN-US>Humanities, Science and Technology</SPAN><SPAN style="LINE-HEIGHT: 200%; FONT-FAMILY: 'Times New Roman'; FONT-SIZE: 12pt; mso-fareast-font-family: 宋体; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA" lang=EN-US>, </SPAN></I></DIV>
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