<br><br><div class="gmail_quote">On Wed, Jan 4, 2012 at 2:28 PM, Barry Smith <span dir="ltr"><<a href="mailto:bsmith@mcs.anl.gov">bsmith@mcs.anl.gov</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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On Jan 4, 2012, at 1:18 PM, TAY wee-beng wrote:<br>
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> Hi Barry and Jed,<br>
><br>
> So the 1st step should be checking the load balancing. If it's more or less balanced, will slicing it in 3 directions further improve the speed?<br>
><br>
> Another thing is that I hope to do some form of adaptive mesh refinement.<br>
><br>
> I'm a bit confused. Are partitioning software like ParMETIS, Zoltan or Isorropia also used for adaptive mesh refinement?<br>
><br>
> Or which open source software can do that with PETSc and in Fortran? I searched and got libMesh, for use with PETSc and paramesh, which is in Fortran.<br>
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</div> Go with libmesh, it has an active community and mailing list for issues that come up.<br></blockquote><div><br></div><div>And will soon have its own DM :-) </div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<span class="HOEnZb"><font color="#888888"><br>
Barry<br>
</font></span><div class="HOEnZb"><div class="h5"><br>
><br>
> Yours sincerely,<br>
><br>
> TAY wee-beng<br>
><br>
><br>
> On 4/1/2012 1:11 AM, Barry Smith wrote:<br>
>> On Jan 3, 2012, at 6:03 PM, Jed Brown wrote:<br>
>><br>
>>> On Tue, Jan 3, 2012 at 17:57, Barry Smith<<a href="mailto:bsmith@mcs.anl.gov">bsmith@mcs.anl.gov</a>> wrote:<br>
>>> Huh? Since it is a structured cartesian mesh code you just want to split up the z direction so that each process has an equal number of grid points<br>
>>><br>
>>> I may have misunderstood this: "Uneven grids are used to reduce the number of grids and the main bulk of grids clusters around the center."<br>
>> I interpreted this to mean that it is using a graded mesh in certain (or all) coordinate directions. I could be wrong.<br>
>><br>
>> Barry<br>
>><br>
>>> If the grid is structured, then I agree to just use a good structured decomposition.<br>
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