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<body><span class="vcard"><a class="email" href="mailto:andrey.churbanov@intel.com" title="Andrey Churbanov <andrey.churbanov@intel.com>"> <span class="fn">Andrey Churbanov</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Imrove perfromance when user sets same number of threads"
href="https://bugs.llvm.org/show_bug.cgi?id=39137">bug 39137</a>
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<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Fixed By Commit(s)</td>
<td>
</td>
<td>r346862
</td>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
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<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>FIXED
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Imrove perfromance when user sets same number of threads"
href="https://bugs.llvm.org/show_bug.cgi?id=39137#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED FIXED - Imrove perfromance when user sets same number of threads"
href="https://bugs.llvm.org/show_bug.cgi?id=39137">bug 39137</a>
from <span class="vcard"><a class="email" href="mailto:andrey.churbanov@intel.com" title="Andrey Churbanov <andrey.churbanov@intel.com>"> <span class="fn">Andrey Churbanov</span></a>
</span></b>
<pre>The function omp_set_num_threads() fixed to not write into internal structure
if requested number of threads is the same as the value of internal control
variable (ICV).
With num_threads() clause things are more complicated, because the write here
is cheaper and this write eliminates the need to read ICV twice - here and in
the following __kmp_fork_call. Attempt to avoid write op here caused some
performance regressions in our testing, so I'd prefer to leave the clause
implementation intact.</pre>
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