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<P><FONT FACE="Arial">Hello,</FONT>
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<P><FONT FACE="Arial">I'm a long-time netcdf user, but new to pnetcdf. I am converting a code that runs in parallel, writing small netcdf files into one that now uses pnetcdf and writes just one netcdf file.</FONT></P>
<P><FONT FACE="Arial">I've managed to create netcdf files using pnetcdf, but when the code gets to the point where it writes data to the file, it is failing with the "Operation not allowed in collective data mode" error.</FONT></P>
<P><FONT FACE="Arial">I'm having some trouble deciphering what this message means. </FONT>
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<P><FONT FACE="Arial">All the processors are writing data to the same file, but at different locations (i.e. the "start" parameter is different for each processor).</FONT></P>
<P><FONT FACE="Arial">Can someone enlighten me?</FONT>
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<P><FONT FACE="Arial">Annette Koontz</FONT>
<BR><FONT FACE="Arial">PNNL</FONT>
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