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<DIV><FONT face=Arial size=2><SPAN
class=941260912-02102006>Hi,</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=941260912-02102006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=941260912-02102006>when using
triangulated networks, we use an area splitting method to distribute the work on
to sevaral processors.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=941260912-02102006>On file, it should
be possible, to distribute the data non contiguos.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN class=941260912-02102006>As an example I
wrote a test program using MPI-IO and an user defined
fileview.</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=941260912-02102006></SPAN></FONT> </DIV>
<DIV><FONT face=Arial size=2><SPAN class=941260912-02102006>The fileviews are
constructed as follows:</SPAN></FONT></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=941260912-02102006>
P0
|0xxxx0000xxxxxxxxxx00xxxx| <BR>
P1
|x1111xxxx1111xxxxxxxxxxxx| <BR>
P2
|xxxxxxxxxxxxx222222xxxxxx|<BR>
P3 |xxxxxxxxxxxxxxxxxxxxx3333|</SPAN></FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2><SPAN
class=941260912-02102006>
total |0111100001111222222003333|</SPAN></FONT></DIV><FONT><SPAN
class=941260912-02102006>
<DIV><BR><FONT face=Arial size=2> Now I would like to realize the same in
pnetCDF. Does anyone know about examples, how I can use user
defined<BR>MPI-datatypes to describe such pattern like the above
one?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV></SPAN></FONT><SPAN class=941260912-02102006><FONT face=Arial size=2>Dr.
Guntram Seiss</FONT></SPAN></DIV>
<DIV><SPAN class=941260912-02102006><FONT face=Arial size=2>Bundesanstalt fuer
Wasserbau</FONT></SPAN></DIV>
<DIV><SPAN class=941260912-02102006><FONT face=Arial
size=2>Hamburg</FONT></SPAN></DIV>
<DIV><FONT face=Arial size=2><SPAN
class=941260912-02102006></SPAN></FONT> </DIV></BODY></HTML>