<html>#2668: GRHydro: work around Intel 19 compiler issue
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<tr><td style='text-align:right'> Reporter:</td><td>Roland Haas</td></tr>
<tr><td style='text-align:right'> Status:</td><td>new</td></tr>
<tr><td style='text-align:right'>Milestone:</td><td>ET_2022_11</td></tr>
<tr><td style='text-align:right'> Version:</td><td>ET_2021_05</td></tr>
<tr><td style='text-align:right'> Type:</td><td>bug</td></tr>
<tr><td style='text-align:right'> Priority:</td><td>major</td></tr>
<tr><td style='text-align:right'>Component:</td><td>EinsteinToolkit thorn</td></tr>
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<p>The intel 19 compiler and newer apparently miscompile GRhydro’s HLLE code when MHD is enabled. This results in either a SEGFAULT of con2prim failures. This has been in the ET tests since around 2021 (it shows up in the ET_2021_05_v0 release tests).</p>
<p>Pull request <br>
<a data-is-external-link="true" href="https://bitbucket.org/einsteintoolkit/einsteinevolve/pull-requests/18" rel="nofollow">https://bitbucket.org/einsteintoolkit/einsteinevolve/pull-requests/18</a><br>
provides a workaround. With it the affected tests pass, see eg qb an supermuc on <a data-is-external-link="true" href="http://einsteintoolkit.org/testsuite_results/index.php" rel="nofollow">http://einsteintoolkit.org/testsuite_results/index.php</a></p>
<p>--<br/>
Ticket URL: <a href='https://bitbucket.org/einsteintoolkit/tickets/issues/2668/grhydro-work-around-intel-19-compiler'>https://bitbucket.org/einsteintoolkit/tickets/issues/2668/grhydro-work-around-intel-19-compiler</a></p>
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