<div dir="ltr">No worries! Thanks so much!<div><br></div><div>Talita</div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, Feb 13, 2019 at 1:51 PM Alexey Bataev <<a href="mailto:a.bataev@outlook.com">a.bataev@outlook.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto">
Hi Talita, had no time today, will look at it tomorrow, sorry.<br>
<br>
<div id="gmail-m_7122684482202394295AppleMailSignature" dir="ltr">Best regards,
<div>Alexey Bataev</div>
</div>
<div dir="ltr"><br>
13 февр. 2019 г., в 16:50, Talita Perciano <<a href="mailto:TPerciano@lbl.gov" target="_blank">TPerciano@lbl.gov</a>> написал(а):<br>
<br>
</div>
<blockquote type="cite">
<div dir="ltr">
<div dir="ltr">
<div dir="ltr">Hi,
<div><br>
</div>
<div>Did any of you guys have the chance to take a look at this?</div>
<div><br>
</div>
<div>Thanks!</div>
<div>Talita</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Feb 12, 2019 at 2:18 PM Talita Perciano <<a href="mailto:TPerciano@lbl.gov" target="_blank">TPerciano@lbl.gov</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="ltr">Hi,
<div><br>
</div>
<div>I'm attaching the cmake logs for both llvm and openmp.</div>
<div><br>
</div>
<div>Thanks,</div>
<div>Talita</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">On Tue, Feb 12, 2019 at 2:00 PM Alexey Bataev <<a href="mailto:a.bataev@outlook.com" target="_blank">a.bataev@outlook.com</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
<div dir="auto">Yes, seems to me something wrong either with the compiler, or the way it is used. Need the compilation line, logs, error report.<br>
<br>
<div id="gmail-m_7122684482202394295gmail-m_2354207806569538040gmail-m_-4276777050151245146AppleMailSignature" dir="ltr">
Best regards,
<div>Alexey Bataev</div>
</div>
<div dir="ltr"><br>
12 февр. 2019 г., в 16:58, Gheorghe-Teod Bercea <<a href="mailto:Gheorghe-Teod.Bercea@ibm.com" target="_blank">Gheorghe-Teod.Bercea@ibm.com</a>> написал(а):<br>
<br>
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<blockquote type="cite">
<div dir="ltr"><font size="2" face="sans-serif">This fixed it for me:</font><br>
<br>
<font size="2" face="sans-serif"> #pragma omp target map(tofrom: y[:n]) map(to:x[:n])</font><br>
<font size="2" face="sans-serif"> #pragma omp parallel for</font><br>
<font size="2" face="sans-serif"> for (int i = 0; i < n; i++)</font><br>
<font size="2" face="sans-serif"> y[i] += a * x[i];</font><br>
<br>
<font size="2" face="sans-serif">--Doru<br>
</font><br>
<br>
<br>
<br>
<font size="1" color="#5f5f5f" face="sans-serif">From: </font><font size="1" face="sans-serif">Talita Perciano via Openmp-dev <<a href="mailto:openmp-dev@lists.llvm.org" target="_blank">openmp-dev@lists.llvm.org</a>></font><br>
<font size="1" color="#5f5f5f" face="sans-serif">To: </font><font size="1" face="sans-serif">Alexey Bataev <<a href="mailto:a.bataev@outlook.com" target="_blank">a.bataev@outlook.com</a>></font><br>
<font size="1" color="#5f5f5f" face="sans-serif">Cc: </font><font size="1" face="sans-serif">"<a href="mailto:openmp-dev@lists.llvm.org" target="_blank">openmp-dev@lists.llvm.org</a>" <<a href="mailto:openmp-dev@lists.llvm.org" target="_blank">openmp-dev@lists.llvm.org</a>></font><br>
<font size="1" color="#5f5f5f" face="sans-serif">Date: </font><font size="1" face="sans-serif">02/12/2019 04:45 PM</font><br>
<font size="1" color="#5f5f5f" face="sans-serif">Subject: </font><font size="1" face="sans-serif">Re: [Openmp-dev] Segmentation fault libomptarget.so</font><br>
<font size="1" color="#5f5f5f" face="sans-serif">Sent by: </font><font size="1" face="sans-serif">"Openmp-dev" <<a href="mailto:openmp-dev-bounces@lists.llvm.org" target="_blank">openmp-dev-bounces@lists.llvm.org</a>></font><br>
<hr noshade>
<br>
<br>
<br>
<font size="3">Tried all the above... still segfault on my end. BTW, I don't know if that's relevant but I'm using cuda 9.2.</font><br>
<br>
<font size="3">On Tue, Feb 12, 2019 at 1:42 PM Alexey Bataev <</font><a href="mailto:a.bataev@outlook.com" target="_blank"><font size="3" color="blue"><u>a.bataev@outlook.com</u></font></a><font size="3">> wrote:</font><br>
<font size="3">Tried your example with my correction,</font>
<p><font size="3">$./a.out 1000<br>
Here<br>
<br>
min = 0.000047, max = 0.999994, avg = 0.504811</font></p>
<p><font size="3">$</font></p>
<p><tt><font size="3">-------------<br>
Best regards,<br>
Alexey Bataev</font></tt><br>
<font size="3">12.02.2019 16:38, Talita Perciano пишет:</font><br>
<font size="3">Thanks for your quick response Alexey. I've just tried what you suggested and I'm still getting the same error.
</font><br>
<br>
<font size="3">Best,</font><br>
<font size="3">Talita</font><br>
<br>
<font size="3">On Tue, Feb 12, 2019 at 1:36 PM Alexey Bataev <</font><a href="mailto:a.bataev@outlook.com" target="_blank"><font size="3" color="blue"><u>a.bataev@outlook.com</u></font></a><font size="3">> wrote:</font><br>
<font size="3">Try to modify target pragma this way</font></p>
<p><font size="3">#pragma omp target map(from: x[:n]) map(tofrom:y[:n])</font></p>
<p><tt><font size="3">-------------<br>
Best regards,<br>
Alexey Bataev</font></tt><br>
<font size="3">12.02.2019 16:33, Talita Perciano via Openmp-dev пишет:</font><br>
<font size="3">Hi, </font><br>
<br>
<font size="3">I'm trying openmp offloading to gpu and I'm getting a segfault when trying to run a test code. I followed the instructions explained here
</font><a href="https://www.hahnjo.de/blog/2018/10/08/clang-7.0-openmp-offloading-nvidia.html" target="_blank"><font size="3" color="blue"><u>https://www.hahnjo.de/blog/2018/10/08/clang-7.0-openmp-offloading-nvidia.html</u></font></a><font size="3">.</font><br>
<br>
<font size="3">Here is the piece of code I'm trying to run:</font><br>
<br>
<font size="3">#include <malloc.h></font><br>
<font size="3">#include <stdio.h></font><br>
<font size="3">#include <stdlib.h></font><br>
<font size="3"> </font><br>
<font size="3">int main(int argc, char* argv[])</font><br>
<font size="3">{</font><br>
<font size="3"> if (argc != 2)</font><br>
<font size="3"> {</font><br>
<font size="3"> printf("Usage: %s \n", argv[0]);</font><br>
<font size="3"> return 0;</font><br>
<font size="3"> }</font><br>
<font size="3"> </font><br>
<font size="3"> int n = atoi(argv[1]);</font><br>
<font size="3"> </font><br>
<font size="3"> double* x = (double*)malloc(sizeof(double) * n);</font><br>
<font size="3"> double* y = (double*)malloc(sizeof(double) * n);</font><br>
<font size="3"> </font><br>
<font size="3"> double idrandmax = 1.0 / RAND_MAX;</font><br>
<font size="3"> double a = idrandmax * rand();</font><br>
<font size="3"> for (int i = 0; i < n; i++)</font><br>
<font size="3"> {</font><br>
<font size="3"> x[i] = idrandmax * rand();</font><br>
<font size="3"> y[i] = idrandmax * rand();</font><br>
<font size="3"> }</font><br>
<font size="3"> printf("Here\n\n");</font><br>
<font size="3"> #pragma omp target</font><br>
<font size="3"> #pragma omp parallel for</font><br>
<font size="3"> {</font><br>
<font size="3"> for (int i = 0; i < n; i++)</font><br>
<font size="3"> y[i] += a * x[i];</font><br>
<font size="3"> }</font><br>
<font size="3"> </font><br>
<font size="3"> double avg = 0.0, min = y[0], max = y[0];</font><br>
<font size="3"> for (int i = 0; i < n; i++)</font><br>
<font size="3"> {</font><br>
<font size="3"> avg += y[i];</font><br>
<font size="3"> if (y[i] > max) max = y[i];</font><br>
<font size="3"> if (y[i] < min) min = y[i];</font><br>
<font size="3"> }</font><br>
<font size="3"> </font><br>
<font size="3"> printf("min = %f, max = %f, avg = %f\n", min, max, avg / n);</font><br>
<font size="3"> </font><br>
<font size="3"> free(x);</font><br>
<font size="3"> free(y);</font><br>
<font size="3"> </font><br>
<font size="3"> return 0;</font><br>
<font size="3">}</font><br>
<br>
<font size="3">I'm compiling the code like this: clang -fopenmp -fopenmp-targets=nvptx64 -O2 example.c</font><br>
<font size="3">When I run I get a Segmentation fault immediately.</font><br>
<br>
<font size="3">Any thoughts?</font><br>
<br>
<font size="3">Thanks!</font><br>
<font size="3">Talita</font><br>
<br>
<br>
<tt><font size="3">_______________________________________________<br>
Openmp-dev mailing list<br>
</font></tt><a href="mailto:Openmp-dev@lists.llvm.org" target="_blank"><tt><font size="3" color="blue"><u>Openmp-dev@lists.llvm.org</u></font></tt></a><tt><font size="3"><br>
</font></tt><a href="https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev" target="_blank"><tt><font size="3" color="blue"><u>https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev</u></font></tt></a><tt><font size="3"><br>
</font></tt><br>
<br>
<br>
<font size="3">-- </font><br>
<font size="3">Dr. Talita Perciano</font><br>
<font size="3">Research Scientist - CRD, Lawrence Berkeley National Laboratory<br>
Data Analytics & Visualization Group</font><br>
<font size="2">Center for Advanced Mathematics for Energy Research Applications</font><br>
<font size="2">One Cyclotron Road<br>
Berkeley, CA 94720</font><br>
<font size="2">059-3034B </font><font size="3">M/S 59R3103</font><br>
<font size="3">Work: (510) 486-5060</font><br>
<a href="mailto:tperciano@lbl.gov" target="_blank"><font size="3" color="blue"><u>tperciano@lbl.gov</u></font></a><br>
<a href="http://tperciano.wixsite.com/home" target="_blank"><font size="3" color="blue"><u>http://tperciano.wixsite.com/home</u></font></a><br>
<br>
<br>
<font size="3">-- </font><br>
<font size="3">Dr. Talita Perciano</font><br>
<font size="3">Research Scientist - CRD, Lawrence Berkeley National Laboratory<br>
Data Analytics & Visualization Group</font><br>
<font size="2">Center for Advanced Mathematics for Energy Research Applications</font><br>
<font size="2">One Cyclotron Road<br>
Berkeley, CA 94720</font><br>
<font size="2">059-3034B </font><font size="2" color="#2f2f2f" face="sans-serif">M/S 59R3103</font><br>
<font size="3">Work: (510) 486-5060</font><br>
<a href="mailto:tperciano@lbl.gov" target="_blank"><font size="3" color="blue"><u>tperciano@lbl.gov</u></font></a><br>
<a href="http://tperciano.wixsite.com/home" target="_blank"><font size="3" color="blue"><u>http://tperciano.wixsite.com/home</u></font></a><tt><font size="2">_______________________________________________<br>
Openmp-dev mailing list<br>
<a href="mailto:Openmp-dev@lists.llvm.org" target="_blank">Openmp-dev@lists.llvm.org</a><br>
</font></tt><a href="https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev" target="_blank"><tt><font size="2">https://lists.llvm.org/cgi-bin/mailman/listinfo/openmp-dev</font></tt></a><tt><font size="2"><br>
</font></tt><br>
<br>
<br>
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<div dir="ltr">
<div dir="ltr">Dr. Talita Perciano</div>
<div dir="ltr">Research Scientist - CRD, Lawrence Berkeley National Laboratory<br>
Data Analytics & Visualization Group<br>
<div><font size="2">Center for Advanced Mathematics for Energy Research Applications</font></div>
<div><span style="font-size:12.8px">One Cyclotron Road</span><br style="font-size:12.8px">
<span style="font-size:12.8px">Berkeley, CA 94720</span><span style="font-size:small"><br>
</span></div>
<div><span style="font-size:small">059-3034B </span><span style="font-size:13px;color:rgb(30,30,30);font-family:"Open Sans",sans-serif">M/S 59R3103</span><font size="2"><br>
</font></div>
</div>
<div dir="ltr">Work: (510) 486-5060<br>
</div>
<div><a href="mailto:tperciano@lbl.gov" target="_blank">tperciano@lbl.gov</a></div>
<div><a href="http://tperciano.wixsite.com/home" target="_blank">http://tperciano.wixsite.com/home</a><br>
</div>
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</blockquote></div><br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr">Dr. Talita Perciano</div><div dir="ltr">Research Scientist - CRD, Lawrence Berkeley National Laboratory<br>Data Analytics & Visualization Group<br><div><font size="2">Center for Advanced Mathematics for Energy Research Applications</font></div><div><span style="font-size:12.8px">One Cyclotron Road</span><br style="font-size:12.8px"><span style="font-size:12.8px">Berkeley, CA 94720</span><span style="font-size:small"><br></span></div><div><span style="font-size:small">059-3034B </span><span style="font-size:13px;color:rgb(30,30,30);font-family:"Open Sans",sans-serif">M/S 59R3103</span><font size="2"><br></font></div></div><div dir="ltr">Work: (510) 486-5060<br></div><div><a href="mailto:tperciano@lbl.gov" target="_blank">tperciano@lbl.gov</a></div><div><a href="http://tperciano.wixsite.com/home" target="_blank">http://tperciano.wixsite.com/home</a><br></div></div></div></div></div></div></div></div></div>