<html>#2194: Memory increase during regridding
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<tr><td style='text-align:right'> Reporter:</td><td>Wolfgang Kastaun</td></tr>
<tr><td style='text-align:right'> Status:</td><td>wontfix</td></tr>
<tr><td style='text-align:right'>Milestone:</td><td>ET_2020_04</td></tr>
<tr><td style='text-align:right'> Version:</td><td>development version</td></tr>
<tr><td style='text-align:right'> Type:</td><td>bug</td></tr>
<tr><td style='text-align:right'> Priority:</td><td>minor</td></tr>
<tr><td style='text-align:right'>Component:</td><td>Other</td></tr>
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<p>Comment (by Roland Haas):</p>
<p>There is also the issue that during a regrid Carpet will genuinely use more memory, if I understand its code correctly then it can use “old grid” + “new grid” + “procbuf” where procbuf can be as much as the larger of “old grid” or “new grid”. At least operation normally happens in a group-by-group and level-by-level so that not two copies of the full state vector of all variables is required.</p>
<p>--<br/>
Ticket URL: <a href='https://bitbucket.org/einsteintoolkit/tickets/issues/2194/memory-increase-during-regridding'>https://bitbucket.org/einsteintoolkit/tickets/issues/2194/memory-increase-during-regridding</a></p>
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