<html xmlns:v="urn:schemas-microsoft-com:vml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word" xmlns:m="http://schemas.microsoft.com/office/2004/12/omml" xmlns="http://www.w3.org/TR/REC-html40">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=us-ascii">
<meta name="Generator" content="Microsoft Word 14 (filtered medium)">
<style><!--
/* Font Definitions */
@font-face
{font-family:"Cambria Math";
panose-1:2 4 5 3 5 4 6 3 2 4;}
@font-face
{font-family:Calibri;
panose-1:2 15 5 2 2 2 4 3 2 4;}
/* Style Definitions */
p.MsoNormal, li.MsoNormal, div.MsoNormal
{margin:0cm;
margin-bottom:.0001pt;
font-size:11.0pt;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
a:link, span.MsoHyperlink
{mso-style-priority:99;
color:blue;
text-decoration:underline;}
a:visited, span.MsoHyperlinkFollowed
{mso-style-priority:99;
color:purple;
text-decoration:underline;}
span.EmailStyle17
{mso-style-type:personal-compose;
font-family:"Calibri","sans-serif";
color:windowtext;}
.MsoChpDefault
{mso-style-type:export-only;
font-family:"Calibri","sans-serif";
mso-fareast-language:EN-US;}
@page WordSection1
{size:612.0pt 792.0pt;
margin:72.0pt 72.0pt 72.0pt 72.0pt;}
div.WordSection1
{page:WordSection1;}
--></style><!--[if gte mso 9]><xml>
<o:shapedefaults v:ext="edit" spidmax="1026" />
</xml><![endif]--><!--[if gte mso 9]><xml>
<o:shapelayout v:ext="edit">
<o:idmap v:ext="edit" data="1" />
</o:shapelayout></xml><![endif]-->
</head>
<body lang="EN-GB" link="blue" vlink="purple">
<div class="WordSection1">
<p class="MsoNormal">Greetings<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I discovered today that the clang I was using was not the 20140309 release I thought I was using, but in fact the slightly older 20140207 because I had not updated the symlink ‘current’ to point to the newer version.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I fixed that and then discovered that the 20140309 bgclang segfaults if you run it on an IO node . It works fine if you compile on the login node.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Is this expected? (previously I was able to compiled either on login or IO nodes without issue)<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">JB<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">clang -O2 -fopenmp -L/gpfs/bbp.cscs.ch/home/biddisco/bgas/apps/clang/bgclang/omp/lib/ stream.c -o stream_c.exe<o:p></o:p></p>
<p class="MsoNormal">0 libLLVM-3.5.0svn.so 0x00000fff998b61e8 llvm::sys::PrintStackTrace(_IO_FILE*) + 4281858696<o:p></o:p></p>
<p class="MsoNormal">1 libLLVM-3.5.0svn.so 0x00000fff998b6484<o:p></o:p></p>
<p class="MsoNormal">2 libLLVM-3.5.0svn.so 0x00000fff998b6900<o:p></o:p></p>
<p class="MsoNormal">3 0x00000fff9a5e0418 __kernel_sigtramp_rt64 + 0<o:p></o:p></p>
<p class="MsoNormal">4 clang 0x0000000010214af0 _ZNSt3__112basic_stringIcNS_11char_traitsIcEENS_9allocatorIcEEE6assignIPKcEENS_9enable_ifIXsr21__is_forward_iteratorIT_EE5valueERS5_E4typeESA_SA_ + 4271468400<o:p></o:p></p>
<p class="MsoNormal">5 libLLVM-3.5.0svn.so 0x00000fff998c61dc llvm::Timer::init(llvm::StringRef) + 4281920764<o:p></o:p></p>
<p class="MsoNormal">6 clang 0x0000000010402a18 clang::CodeGenAction::CreateASTConsumer(clang::CompilerInstance&, llvm::StringRef) + 4273435544<o:p></o:p></p>
<p class="MsoNormal">7 clang 0x00000000101dabf0 clang::FrontendAction::CreateWrappedASTConsumer(clang::CompilerInstance&, llvm::StringRef) + 4271239776<o:p></o:p></p>
<p class="MsoNormal">8 clang 0x00000000101dc4e4 clang::FrontendAction::BeginSourceFile(clang::CompilerInstance&, clang::FrontendInputFile const&) + 4271246140<o:p></o:p></p>
<p class="MsoNormal">9 clang 0x00000000101a8750 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 4271036552<o:p></o:p></p>
<p class="MsoNormal">10 clang 0x0000000010185490 clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 4270899376<o:p></o:p></p>
<p class="MsoNormal">11 clang 0x0000000010179f74 cc1_main(char const**, char const**, char const*, void*) + 4270853924<o:p></o:p></p>
<p class="MsoNormal">12 clang 0x00000000101829ec main + 4270888772<o:p></o:p></p>
<p class="MsoNormal">13 libc.so.6 0x00000fff97b3bcf8<o:p></o:p></p>
<p class="MsoNormal">14 libc.so.6 0x00000fff97b3bef0 __libc_start_main + 4293374496<o:p></o:p></p>
<p class="MsoNormal">Stack dump:<o:p></o:p></p>
<p class="MsoNormal">0. Program arguments: /gpfs/bbp.cscs.ch/home/biddisco/bgas/apps/clang/bgclang/r203443-20140309/bin/clang -cc1 -fopenmp -triple powerpc64-unknown-linux-gnu -S -disable-free -main-file-name stream.c -mrelocation-model static -mdisable-fp-elim
-fmath-errno -no-integrated-as -mconstructor-aliases -target-cpu ppc64 -target-linker-version 2.20.51.0.2 -resource-dir /gpfs/bbp.cscs.ch/home/biddisco/bgas/apps/clang/bgclang/r203443-20140309/bin/../lib/clang/3.5.0 -internal-isystem /usr/local/include -internal-isystem
/gpfs/bbp.cscs.ch/home/biddisco/bgas/apps/clang/bgclang/r203443-20140309/bin/../lib/clang/3.5.0/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O2 -fno-dwarf-directory-asm -fdebug-compilation-dir /gpfs/bbp.cscs.ch/home/biddisco/bgas/clang/build/stream
-ferror-limit 19 -fmessage-length 161 -mstackrealign -fno-signed-char -fobjc-runtime=gcc -fdiagnostics-show-option -fcolor-diagnostics -vectorize-loops -vectorize-slp -o /tmp/stream-fbdca0.s -x c stream.c<o:p></o:p></p>
<p class="MsoNormal">clang: error: unable to execute command: Floating point exception (core dumped)<o:p></o:p></p>
<p class="MsoNormal">clang: error: clang frontend command failed due to signal (use -v to see invocation)<o:p></o:p></p>
<p class="MsoNormal">clang version 3.5.0 (trunk)<o:p></o:p></p>
<p class="MsoNormal">Target: powerpc64-unknown-linux-gnu<o:p></o:p></p>
<p class="MsoNormal">Thread model: posix<o:p></o:p></p>
<p class="MsoNormal">clang: note: diagnostic msg: PLEASE submit a bug report to http://llvm.org/bugs/ and include the crash backtrace, preprocessed source, and associated run script.<o:p></o:p></p>
<p class="MsoNormal">clang: note: diagnostic msg:<o:p></o:p></p>
<p class="MsoNormal">********************<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:<o:p></o:p></p>
<p class="MsoNormal">Preprocessed source(s) and associated run script(s) are located at:<o:p></o:p></p>
<p class="MsoNormal">clang: note: diagnostic msg: /tmp/stream-d2f913.c<o:p></o:p></p>
<p class="MsoNormal">clang: note: diagnostic msg: /tmp/stream-d2f913.sh<o:p></o:p></p>
<p class="MsoNormal">clang: note: diagnostic msg:<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">********************<o:p></o:p></p>
<p class="MsoNormal">make: *** [stream_c.exe] Error 254<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-GB">--
<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-GB">John Biddiscombe, email:biddisco @.at.@ cscs.ch<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-GB"><a href="http://www.cscs.ch/"><span style="color:windowtext">http://www.cscs.ch/</span></a><o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US" style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-GB">CSCS, Swiss National Supercomputing Centre | Tel: +41 (91) 610.82.07<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="IT-CH" style="font-size:10.0pt;font-family:"Courier New";mso-fareast-language:EN-GB">Via Trevano 131, 6900 Lugano, Switzerland | Fax: +41 (91) 610.82.82<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="IT-CH"><o:p> </o:p></span></p>
</div>
</body>
</html>