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<DIV><FONT face=Arial size=2>Dear pwscfer's</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I can compile the MPI version of espresso 
package sucessfully and it runs on 2 processors within the same node. 
However, it crashes whenever I try to run the example on more than 2 processors, 
which means the communications need to be setup across the node. We have 
marinet switch and I can run other MPI program sucessfully. Is there some 
problem with my MPI running environment? or I need to specify something in the 
make.sys file?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>When running on 4 processors (2 nodes), the error 
message in the output looks:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial 
size=2>************************************************************************<BR>****                                                                
****<BR>****  CPV: variable-cell Car-Parrinello molecular 
dynamics          
****<BR>****  using ultrasoft Vanderbilt pseudopotentials - 
v.2.1.1         
****<BR>****                                                                
****<BR>************************************************************************</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>     Parallel version 
(MPI)<BR>     Number of processors in 
use:      4</FONT></DIV>
<DIV> </DIV><FONT face=Arial size=2>
<DIV><BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@^@ 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</DIV>
<DIV> </DIV>
<DIV>     from  read_namelists  : error 
#         1<BR>     
stopping ...<BR>      reading namelist 
control<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</DIV>
<DIV> </DIV>
<DIV>     stopping ...</DIV>
<DIV> </DIV>
<DIV><BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>     
from  read_namelists  : error 
#         1<BR>     
from  read_namelists  : error 
#         
1<BR>      reading namelist 
control<BR>      reading namelist 
control<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</DIV>
<DIV> </DIV>
<DIV><BR>     stopping ..<BR>     
stopping ...<BR>[3] MPI Abort by user Aborting program !<BR>[3] Aborting 
program!<BR>[1] MPI Abort by user Aborting program !<BR>[1] Aborting 
program!<BR></FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>and the file 'CRASH' looks:</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>   
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>     
task #         
0<BR>     from  read_namelists  : error 
#         
0<BR>      reading namelist 
control<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</FONT></DIV>
<DIV> </DIV><FONT face=Arial size=2>
<DIV><BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>     
task #         3</DIV>
<DIV> </DIV>
<DIV> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>     
task #         
0<BR>     from  read_namelists  : error 
#         
0<BR>      reading namelist 
control<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</DIV>
<DIV> </DIV>
<DIV><BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>     
task #         
2<BR>     from  read_namelists  : error 
#         
0<BR>      reading namelist 
control<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%</DIV>
<DIV> </DIV>
<DIV><BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR>     
task #         
0<BR>     from  read_namelists  : error 
#         
0<BR>      reading namelist 
control<BR> %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%<BR></DIV>
<DIV>Thanks, Tianying</DIV></FONT></BODY></HTML>