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<DIV><FONT face=Verdana size=2>Dear all,</FONT></DIV>
<DIV> </DIV>
<DIV>I intend to postprocess the solution of a PDE (stored in a
parallel PETSc vector ) using tecplot. Thus I want to
output the values of the parallel vector as well as other data
(such as the grid information) to a ASCII file.</DIV>
<DIV> </DIV>
<DIV>When I deal this with </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV>VecGetArray(U, &u);</DIV>
<DIV> </DIV>
<DIV>for (i=0; i<Mx*My; i++)</DIV>
<DIV>{</DIV>
<DIV>PetscViewerASCIIPrintf(viewer,"%F %F %F", x, y, u[i]);</DIV>
<DIV>}</DIV>
<DIV><FONT face=Verdana size=2></FONT> </DIV>
<DIV>If more than 1 processor are used, I found that only part of the value of u
was output correctly (that stored on the first processor).</DIV>
<DIV>I found in the manual page of "PetscViewerASCIIPrintf" that "<SPAN
class=Apple-style-span
style="DISPLAY: inline! important; FLOAT: none; WORD-SPACING: 0px; FONT: medium Simsun; TEXT-TRANSFORM: none; COLOR: rgb(0,0,0); TEXT-INDENT: 0px; WHITE-SPACE: normal; LETTER-SPACING: normal; BACKGROUND-COLOR: rgb(255,255,255); orphans: 2; widows: 2; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px">Not
Collective, but only first processor in set has any effect</SPAN>"</DIV>
<DIV> </DIV>
<DIV>Could anyone give me some suggestions on this issue?</DIV>
<DIV> </DIV>
<DIV>Thank you very much in advance!</DIV>
<DIV> </DIV>
<DIV>Best Regards</DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV> </DIV>
<DIV align=left><FONT face=Verdana color=#c0c0c0 size=2>2011-12-02
</FONT></DIV><FONT face=Verdana size=2>
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<DIV><FONT face=Verdana color=#c0c0c0 size=2><SPAN>Feng-Chao Wang</SPAN>
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