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<div class="moz-cite-prefix">Hello,</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">thanks for informing us about this,
please open an issue on the GitLab issue tracker, I can then tag
the people that can help with this.<br>
We don't have ARM/SVE hardware here our self in Stockholm to test
this in CI.<br>
<br>
Cheers<br>
<br>
Paul<br>
</div>
<div class="moz-cite-prefix"><br>
</div>
<div class="moz-cite-prefix">On 27/10/2020 09:58, Guido Giuntoli
wrote:<br>
</div>
<blockquote type="cite"
cite="mid:32dcc78fd1454f2b9d65e090da088128@huawei.com">
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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I have run the nonbonded-benchmark using
the ArmIE emulator.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I compiled gmx_d (DOUBLE FP) with GCC 10.2
for SVE by using:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>CC=gcc-10 CXX=g++-10 \<o:p></o:p></b></p>
<p class="MsoNormal"><b>cmake .. \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DCMAKE_BUILD_TYPE=Release \<o:p></o:p></b></p>
<p class="MsoNormal"><b>
-DCMAKE_C_FLAGS="-march=armv8-a+sve" \<o:p></o:p></b></p>
<p class="MsoNormal"><b>
-DCMAKE_CXX_FLAGS="-march=armv8-a+sve" \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMX_MPI=off \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMX_GPU=off \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMX_USE_OPENCL=off \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMX_BUILD_MDRUN_ONLY=off \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMX_DOUBLE=on \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMX_SIMD=ARM_SVE \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DBUILD_SHARED_LIBS=off \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMX_FFT_LIBRARY=fftw3 \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMX_INSTALL_NBLIB_API=OFF \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -DGMXAPI=OFF \<o:p></o:p></b></p>
<p class="MsoNormal"><b> | tee cmake.log<o:p></o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I ran the benchmark with:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>armie -msve-vector-bits=256 \<o:p></o:p></b></p>
<p class="MsoNormal"><b> gmx_d nonbonded-benchmark \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -size 1 \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -nt 1 \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -simd 4xm \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -coulomb ewald \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -notable \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -combrule geometric \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -nohalflj \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -noenergy \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -noall \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -cutoff 1 \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -iter 5 \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -warmup 0 \<o:p></o:p></b></p>
<p class="MsoNormal"><b> -nocycles<o:p></o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I get:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b>armie's SVESigHandler caught signal
SIGSEGV from the process being emulated, passing it to the
default signal handler.<o:p></o:p></b></p>
<p class="MsoNormal"><b>Guest process terminated by signal:
15152 Segmentation fault /home/…
/codes/gromacs/gromacs-2021-beta1/build-sve/bin/gmx_d<o:p></o:p></b></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">According to the last meeting, I am eager
to know if this branch has passed the regression tests using
SVE. BTW, are you using SVE-enabled hardware or emulation for
your development/tests?
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;color:#666666" lang="DE">Best
regards | Mit freundlichen Grüßen</span></b><span
style="font-size:10.0pt;color:#666666" lang="DE"><o:p></o:p></span></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;color:#666666" lang="DE"><o:p> </o:p></span></b></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;color:#666666" lang="DE">Guido
Giuntoli</span></b><b><span
style="font-size:10.0pt;color:#1F497D" lang="DE"><o:p></o:p></span></b></p>
<p class="MsoNormal"><b><span
style="font-size:10.0pt;color:#666666"><o:p> </o:p></span></b></p>
<p class="MsoNormal">HUAWEI TECHNOLOGIES Duesseldorf GmbH<br>
Hansaallee 205, 40549 Dusseldorf, Germany, <a
href="http://www.huawei.com/" moz-do-not-send="true"><b><span
style="color:blue">www.huawei.com</span></b></a><br>
Registered Office: Düsseldorf, Register Court Düsseldorf, HRB
56063, <br>
Managing Director: Li Peng, Li Jian, Shi Yanli<b><span
style="font-size:8.0pt;font-family:"Arial",sans-serif;color:gray"><o:p></o:p></span></b></p>
<p class="MsoNormal"><span lang="DE">Sitz der Gesellschaft:
Düsseldorf, Amtsgericht Düsseldorf, HRB 56063,
<br>
Geschäftsführer: Li Peng, Li Jian, Shi Yanli<o:p></o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:9.0pt"
lang="EN-GB">-----------------------------------------------------------------------------------------------</span></b><span
style="color:#1F497D"><o:p></o:p></span></p>
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<br>
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<p><br>
</p>
<pre class="moz-signature" cols="72">--
Paul Bauer, PhD
GROMACS Development Manager
KTH Stockholm, SciLifeLab
0046737308594</pre>
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