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    <title>topic Re: icpx crashes in Intel® oneAPI DPC++/C++ Compiler</title>
    <link>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1586069#M3581</link>
    <description>&lt;P&gt;&lt;a href="https://community.intel.com/t5/user/viewprofilepage/user-id/347520"&gt;@Waschk&lt;/a&gt;&amp;nbsp;&lt;BR /&gt;In order for the community to be able to help, please provide a reproducer and exactly reproducing steps.&amp;nbsp;&lt;/P&gt;</description>
    <pubDate>Thu, 04 Apr 2024 00:10:41 GMT</pubDate>
    <dc:creator>Alex_Y_Intel</dc:creator>
    <dc:date>2024-04-04T00:10:41Z</dc:date>
    <item>
      <title>icpx crashes</title>
      <link>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1582406#M3550</link>
      <description>&lt;P&gt;icpx: warning: Use of '-qopenmp' recommended over '-fopenmp' [-Wrecommended-option]&lt;BR /&gt;Intel(R) oneAPI DPC++/C++ Compiler 2024.0.2 (2024.0.2.20231213)&lt;BR /&gt;Target: x86_64-unknown-linux-gnu&lt;BR /&gt;Thread model: posix&lt;BR /&gt;InstalledDir: /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler&lt;BR /&gt;Configuration file: /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/../icpx.cfg&lt;BR /&gt;Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/11&lt;BR /&gt;Selected GCC installation: /usr/lib/gcc/x86_64-redhat-linux/11&lt;BR /&gt;Candidate multilib: .;@m64&lt;BR /&gt;Candidate multilib: 32;@m32&lt;BR /&gt;Selected multilib: .;@m64&lt;BR /&gt;"/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang" -cc1 -triple x86_64-unknown-linux-gnu -E -save-temps=cwd -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name version.cc -mrelocation-model pic -pic-level 1 -fhalf-no-semantic-interposition -fveclib=SVML -mframe-pointer=none -relaxed-aliasing -menable-no-infs -menable-no-nans -fapprox-func -funsafe-math-optimizations -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +avx2 -target-feature +fma -target-feature +f16c -mllvm -x86-enable-unaligned-vector-move=true -tune-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/tmp/waschk/Grid/Grid -resource-dir /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17 -dependency-file util/.deps/version.Tpo -MT util/version.o -sys-header-deps -canonical-system-headers -MP -I . -I /tmp/waschk/Grid -D HAVE_CONFIG_H -internal-isystem /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/../../opt/compiler/include -internal-isystem /usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11 -internal-isystem /usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11/x86_64-redhat-linux -internal-isystem /usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11/backward -internal-isystem /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-redhat-linux/11/../../../../x86_64-redhat-linux/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -fdeprecated-macro -fdebug-compilation-dir=/tmp/waschk/Grid/Grid -ferror-limit 19 -fheinous-gnu-extensions -fopenmp -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -mllvm -enable-gvn-hoist -fcolor-diagnostics -vectorize-loops -vectorize-slp -D__GCC_HAVE_DWARF2_CFI_ASM=1 -fintel-compatibility -fintel-libirc-allowed -mllvm -disable-hir-generate-mkl-call -mllvm -loopopt=1 -floopopt-pipeline=light -mllvm -intel-abi-compatible=true -o version.ii -x c++ util/version.cc&lt;BR /&gt;clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu&lt;BR /&gt;ignoring nonexistent directory "/usr/lib/gcc/x86_64-redhat-linux/11/../../../../x86_64-redhat-linux/include"&lt;BR /&gt;ignoring nonexistent directory "/include"&lt;BR /&gt;#include "..." search starts here:&lt;BR /&gt;#include &amp;lt;...&amp;gt; search starts here:&lt;BR /&gt;.&lt;BR /&gt;/tmp/waschk/Grid&lt;BR /&gt;/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/../../opt/compiler/include&lt;BR /&gt;/usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11&lt;BR /&gt;/usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11/x86_64-redhat-linux&lt;BR /&gt;/usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11/backward&lt;BR /&gt;/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17/include&lt;BR /&gt;/usr/local/include&lt;BR /&gt;/usr/include&lt;BR /&gt;End of search list.&lt;BR /&gt;"/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang" -cc1 -triple x86_64-unknown-linux-gnu -S -save-temps=cwd -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name version.cc -mrelocation-model pic -pic-level 1 -fhalf-no-semantic-interposition -fveclib=SVML -mframe-pointer=none -relaxed-aliasing -menable-no-infs -menable-no-nans -fapprox-func -funsafe-math-optimizations -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +avx2 -target-feature +fma -target-feature +f16c -mllvm -x86-enable-unaligned-vector-move=true -tune-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/tmp/waschk/Grid/Grid -resource-dir /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17 -O3 -fdeprecated-macro -fdebug-compilation-dir=/tmp/waschk/Grid/Grid -ferror-limit 19 -fheinous-gnu-extensions -fopenmp -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -mllvm -enable-gvn-hoist -fcolor-diagnostics -vectorize-loops -vectorize-slp -D__GCC_HAVE_DWARF2_CFI_ASM=1 -fintel-compatibility -fintel-libirc-allowed -mllvm -disable-hir-generate-mkl-call -mllvm -loopopt=1 -floopopt-pipeline=light -mllvm -intel-abi-compatible=true -o version.s -x c++-cpp-output version.ii&lt;BR /&gt;clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu&lt;BR /&gt;#include "..." search starts here:&lt;BR /&gt;End of search list.&lt;BR /&gt;"/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang" -cc1as -triple x86_64-unknown-linux-gnu -filetype obj -main-file-name version.cc -target-cpu x86-64 -target-feature +avx2 -target-feature +fma -target-feature +f16c -I . -I /tmp/waschk/Grid -fdebug-compilation-dir=/tmp/waschk/Grid/Grid -dwarf-version=4 -mrelocation-model pic -o util/version.o version.s&lt;BR /&gt;CXX qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.o&lt;BR /&gt;icpx: warning: Use of '-qopenmp' recommended over '-fopenmp' [-Wrecommended-option]&lt;BR /&gt;Intel(R) oneAPI DPC++/C++ Compiler 2024.0.2 (2024.0.2.20231213)&lt;BR /&gt;Target: x86_64-unknown-linux-gnu&lt;BR /&gt;Thread model: posix&lt;BR /&gt;InstalledDir: /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler&lt;BR /&gt;Configuration file: /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/../icpx.cfg&lt;BR /&gt;Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/11&lt;BR /&gt;Selected GCC installation: /usr/lib/gcc/x86_64-redhat-linux/11&lt;BR /&gt;Candidate multilib: .;@m64&lt;BR /&gt;Candidate multilib: 32;@m32&lt;BR /&gt;Selected multilib: .;@m64&lt;BR /&gt;"/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang" -cc1 -triple x86_64-unknown-linux-gnu -E -save-temps=cwd -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name WilsonKernelsInstantiationWilsonImplD.cc -mrelocation-model pic -pic-level 1 -fhalf-no-semantic-interposition -fveclib=SVML -mframe-pointer=none -relaxed-aliasing -menable-no-infs -menable-no-nans -fapprox-func -funsafe-math-optimizations -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +avx2 -target-feature +fma -target-feature +f16c -mllvm -x86-enable-unaligned-vector-move=true -tune-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/tmp/waschk/Grid/Grid -resource-dir /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17 -dependency-file qcd/action/fermion/instantiation/WilsonImplD/.deps/WilsonKernelsInstantiationWilsonImplD.Tpo -MT qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.o -sys-header-deps -canonical-system-headers -MP -I . -I /tmp/waschk/Grid -D HAVE_CONFIG_H -internal-isystem /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/../../opt/compiler/include -internal-isystem /usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11 -internal-isystem /usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11/x86_64-redhat-linux -internal-isystem /usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11/backward -internal-isystem /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17/include -internal-isystem /usr/local/include -internal-isystem /usr/lib/gcc/x86_64-redhat-linux/11/../../../../x86_64-redhat-linux/include -internal-externc-isystem /include -internal-externc-isystem /usr/include -O3 -fdeprecated-macro -fdebug-compilation-dir=/tmp/waschk/Grid/Grid -ferror-limit 19 -fheinous-gnu-extensions -fopenmp -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -mllvm -enable-gvn-hoist -fcolor-diagnostics -vectorize-loops -vectorize-slp -D__GCC_HAVE_DWARF2_CFI_ASM=1 -fintel-compatibility -fintel-libirc-allowed -mllvm -disable-hir-generate-mkl-call -mllvm -loopopt=1 -floopopt-pipeline=light -mllvm -intel-abi-compatible=true -o WilsonKernelsInstantiationWilsonImplD.ii -x c++ qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc&lt;BR /&gt;clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu&lt;BR /&gt;ignoring nonexistent directory "/usr/lib/gcc/x86_64-redhat-linux/11/../../../../x86_64-redhat-linux/include"&lt;BR /&gt;ignoring nonexistent directory "/include"&lt;BR /&gt;#include "..." search starts here:&lt;BR /&gt;#include &amp;lt;...&amp;gt; search starts here:&lt;BR /&gt;.&lt;BR /&gt;/tmp/waschk/Grid&lt;BR /&gt;/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/../../opt/compiler/include&lt;BR /&gt;/usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11&lt;BR /&gt;/usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11/x86_64-redhat-linux&lt;BR /&gt;/usr/lib/gcc/x86_64-redhat-linux/11/../../../../include/c++/11/backward&lt;BR /&gt;/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17/include&lt;BR /&gt;/usr/local/include&lt;BR /&gt;/usr/include&lt;BR /&gt;End of search list.&lt;BR /&gt;"/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang" -cc1 -triple x86_64-unknown-linux-gnu -S -save-temps=cwd -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name WilsonKernelsInstantiationWilsonImplD.cc -mrelocation-model pic -pic-level 1 -fhalf-no-semantic-interposition -fveclib=SVML -mframe-pointer=none -relaxed-aliasing -menable-no-infs -menable-no-nans -fapprox-func -funsafe-math-optimizations -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +avx2 -target-feature +fma -target-feature +f16c -mllvm -x86-enable-unaligned-vector-move=true -tune-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/tmp/waschk/Grid/Grid -resource-dir /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17 -O3 -fdeprecated-macro -fdebug-compilation-dir=/tmp/waschk/Grid/Grid -ferror-limit 19 -fheinous-gnu-extensions -fopenmp -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -mllvm -enable-gvn-hoist -fcolor-diagnostics -vectorize-loops -vectorize-slp -D__GCC_HAVE_DWARF2_CFI_ASM=1 -fintel-compatibility -fintel-libirc-allowed -mllvm -disable-hir-generate-mkl-call -mllvm -loopopt=1 -floopopt-pipeline=light -mllvm -intel-abi-compatible=true -o WilsonKernelsInstantiationWilsonImplD.s -x c++-cpp-output WilsonKernelsInstantiationWilsonImplD.ii&lt;BR /&gt;clang -cc1 version 17.0.0 based upon LLVM 17.0.0git default target x86_64-unknown-linux-gnu&lt;BR /&gt;#include "..." search starts here:&lt;BR /&gt;End of search list.&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:48:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/ConjugateGradient.h:75:26: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;75 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/ConjugateGradient.h", 75, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:50:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/BiCGSTAB.h:80:28: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;80 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/BiCGSTAB.h", 80, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:60:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h:191:51: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;191 | for(int b=0;b&amp;lt;Nblock;b++){ (static_cast &amp;lt;bool&amp;gt; (std::isnan(residuals[b])==0) ? void (0) : __assert_fail ("std::isnan(residuals[b])==0", "/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h", 191, __extension__ __PRETTY_FUNCTION__)); }&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~~~~~~~~&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h:194:51: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;194 | for(int b=0;b&amp;lt;Nblock;b++){ (static_cast &amp;lt;bool&amp;gt; (std::isnan(residuals[b])==0) ? void (0) : __assert_fail ("std::isnan(residuals[b])==0", "/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h", 194, __extension__ __PRETTY_FUNCTION__)); }&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~~~~~~~~&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h:363:51: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;363 | for(int b=0;b&amp;lt;Nblock;b++){ (static_cast &amp;lt;bool&amp;gt; (std::isnan(residuals[b])==0) ? void (0) : __assert_fail ("std::isnan(residuals[b])==0", "/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h", 363, __extension__ __PRETTY_FUNCTION__)); }&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~~~~~~~~&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h:366:51: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;366 | for(int b=0;b&amp;lt;Nblock;b++){ (static_cast &amp;lt;bool&amp;gt; (std::isnan(residuals[b])==0) ? void (0) : __assert_fail ("std::isnan(residuals[b])==0", "/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h", 366, __extension__ __PRETTY_FUNCTION__)); }&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~~~~~~~~&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h:555:51: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;555 | for(int b=0;b&amp;lt;Nblock;b++){ (static_cast &amp;lt;bool&amp;gt; (std::isnan(residuals[b])==0) ? void (0) : __assert_fail ("std::isnan(residuals[b])==0", "/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h", 555, __extension__ __PRETTY_FUNCTION__)); }&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~~~~~~~~&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h:558:51: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;558 | for(int b=0;b&amp;lt;Nblock;b++){ (static_cast &amp;lt;bool&amp;gt; (std::isnan(residuals[b])==0) ? void (0) : __assert_fail ("std::isnan(residuals[b])==0", "/tmp/waschk/Grid/Grid/algorithms/iterative/BlockConjugateGradient.h", 558, __extension__ __PRETTY_FUNCTION__)); }&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:61:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/ConjugateGradientReliableUpdate.h:93:26: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;93 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/ConjugateGradientReliableUpdate.h", 93, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:62:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/MinimalResidual.h:62:26: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;62 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/MinimalResidual.h", 62, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:63:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/GeneralisedMinimalResidual.h:83:26: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;83 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/GeneralisedMinimalResidual.h", 83, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:64:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/CommunicationAvoidingGeneralisedMinimalResidual.h:85:26: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;85 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/CommunicationAvoidingGeneralisedMinimalResidual.h", 85, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:65:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/FlexibleGeneralisedMinimalResidual.h:88:26: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;88 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/FlexibleGeneralisedMinimalResidual.h", 88, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:66:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/FlexibleCommunicationAvoidingGeneralisedMinimalResidual.h:90:26: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;90 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/FlexibleCommunicationAvoidingGeneralisedMinimalResidual.h", 90, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;In file included from qcd/action/fermion/instantiation/WilsonImplD/WilsonKernelsInstantiationWilsonImplD.cc:32:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/qcd/action/fermion/FermionCore.h:31:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/GridCore.h:63:&lt;BR /&gt;In file included from /tmp/waschk/Grid/Grid/algorithms/Algorithms.h:67:&lt;BR /&gt;/tmp/waschk/Grid/Grid/algorithms/iterative/MixedPrecisionFlexibleGeneralisedMinimalResidual.h:94:26: warning: explicit comparison with NaN in fast floating point mode [-Wtautological-constant-compare]&lt;BR /&gt;94 | (static_cast &amp;lt;bool&amp;gt; (std::isnan(guess) == 0) ? void (0) : __assert_fail ("std::isnan(guess) == 0", "/tmp/waschk/Grid/Grid/algorithms/iterative/MixedPrecisionFlexibleGeneralisedMinimalResidual.h", 94, __extension__ __PRETTY_FUNCTION__));&lt;BR /&gt;| ^~~~~~~~~~~~~~~~~&lt;BR /&gt;PLEASE append the compiler options "-save-temps -v", rebuild the application to to get the full command which is failing and submit a bug report to &lt;A href="https://software.intel.com/en-us/support/priority-support" target="_blank"&gt;https://software.intel.com/en-us/support/priority-support&lt;/A&gt; which includes the failing command, input files for the command and the crash backtrace (if any).&lt;BR /&gt;Stack dump:&lt;BR /&gt;0. Program arguments: /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang -cc1 -triple x86_64-unknown-linux-gnu -S -save-temps=cwd -disable-free -clear-ast-before-backend -disable-llvm-verifier -discard-value-names -main-file-name WilsonKernelsInstantiationWilsonImplD.cc -mrelocation-model pic -pic-level 1 -fhalf-no-semantic-interposition -fveclib=SVML -mframe-pointer=none -relaxed-aliasing -menable-no-infs -menable-no-nans -fapprox-func -funsafe-math-optimizations -fno-signed-zeros -mreassociate -freciprocal-math -fdenormal-fp-math=preserve-sign,preserve-sign -ffp-contract=fast -fno-rounding-math -ffast-math -ffinite-math-only -mconstructor-aliases -funwind-tables=2 -target-cpu x86-64 -target-feature +avx2 -target-feature +fma -target-feature +f16c -mllvm -x86-enable-unaligned-vector-move=true -tune-cpu generic -debugger-tuning=gdb -v -fcoverage-compilation-dir=/tmp/waschk/Grid/Grid -resource-dir /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/lib/clang/17 -O3 -fdeprecated-macro -fdebug-compilation-dir=/tmp/waschk/Grid/Grid -ferror-limit 19 -fheinous-gnu-extensions -fopenmp -fgnuc-version=4.2.1 -fcxx-exceptions -fexceptions -mllvm -enable-gvn-hoist -fcolor-diagnostics -vectorize-loops -vectorize-slp -D__GCC_HAVE_DWARF2_CFI_ASM=1 -fintel-compatibility -fintel-libirc-allowed -mllvm -disable-hir-generate-mkl-call -mllvm -loopopt=1 -floopopt-pipeline=light -mllvm -intel-abi-compatible=true -o WilsonKernelsInstantiationWilsonImplD.s -x c++-cpp-output WilsonKernelsInstantiationWilsonImplD.ii&lt;BR /&gt;1. &amp;lt;eof&amp;gt; parser at end of file&lt;BR /&gt;2. Optimizer&lt;BR /&gt;#0 0x0000557f43fdc773 llvm::sys::PrintStackTrace(llvm::raw_ostream&amp;amp;, int) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x5144773)&lt;BR /&gt;#1 0x0000557f43fdac60 llvm::sys::RunSignalHandlers() (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x5142c60)&lt;BR /&gt;#2 0x0000557f43fdcdf4 SignalHandler(int) Signals.cpp:0:0&lt;BR /&gt;#3 0x00007fb90f454db0 __restore_rt (/lib64/libc.so.6+0x54db0)&lt;BR /&gt;#4 0x0000557f43c73396 combineInstructionsOverFunction(llvm::Function&amp;amp;, llvm::InstructionWorklist&amp;amp;, llvm::AAResults*, llvm::AssumptionCache&amp;amp;, llvm::TargetLibraryInfo&amp;amp;, llvm::TargetTransformInfo&amp;amp;, llvm::DominatorTree&amp;amp;, llvm::OptimizationRemarkEmitter&amp;amp;, llvm::BlockFrequencyInfo*, llvm::ProfileSummaryInfo*, unsigned int, bool, bool, bool, bool, bool, llvm::LoopInfo*) InstructionCombining.cpp:0:0&lt;BR /&gt;#5 0x0000557f43c72085 llvm::InstCombinePass::run(llvm::Function&amp;amp;, llvm::AnalysisManager&amp;lt;llvm::Function&amp;gt;&amp;amp;) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x4dda085)&lt;BR /&gt;#6 0x0000557f44a1e49d llvm::detail::PassModel&amp;lt;llvm::Function, llvm::InstCombinePass, llvm::PreservedAnalyses, llvm::AnalysisManager&amp;lt;llvm::Function&amp;gt;&amp;gt;::run(llvm::Function&amp;amp;, llvm::AnalysisManager&amp;lt;llvm::Function&amp;gt;&amp;amp;) BackendUtil.cpp:0:0&lt;BR /&gt;#7 0x0000557f43b2b723 llvm::PassManager&amp;lt;llvm::Function, llvm::AnalysisManager&amp;lt;llvm::Function&amp;gt;&amp;gt;::run(llvm::Function&amp;amp;, llvm::AnalysisManager&amp;lt;llvm::Function&amp;gt;&amp;amp;) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x4c93723)&lt;BR /&gt;#8 0x0000557f430936fd llvm::detail::PassModel&amp;lt;llvm::Function, llvm::PassManager&amp;lt;llvm::Function, llvm::AnalysisManager&amp;lt;llvm::Function&amp;gt;&amp;gt;, llvm::PreservedAnalyses, llvm::AnalysisManager&amp;lt;llvm::Function&amp;gt;&amp;gt;::run(llvm::Function&amp;amp;, llvm::AnalysisManager&amp;lt;llvm::Function&amp;gt;&amp;amp;) NVPTXTargetMachine.cpp:0:0&lt;BR /&gt;#9 0x0000557f43b320b2 llvm::ModuleToFunctionPassAdaptor::run(llvm::Module&amp;amp;, llvm::AnalysisManager&amp;lt;llvm::Module&amp;gt;&amp;amp;) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x4c9a0b2)&lt;BR /&gt;#10 0x0000557f4309348d llvm::detail::PassModel&amp;lt;llvm::Module, llvm::ModuleToFunctionPassAdaptor, llvm::PreservedAnalyses, llvm::AnalysisManager&amp;lt;llvm::Module&amp;gt;&amp;gt;::run(llvm::Module&amp;amp;, llvm::AnalysisManager&amp;lt;llvm::Module&amp;gt;&amp;amp;) NVPTXTargetMachine.cpp:0:0&lt;BR /&gt;#11 0x0000557f43b2a723 llvm::PassManager&amp;lt;llvm::Module, llvm::AnalysisManager&amp;lt;llvm::Module&amp;gt;&amp;gt;::run(llvm::Module&amp;amp;, llvm::AnalysisManager&amp;lt;llvm::Module&amp;gt;&amp;amp;) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x4c92723)&lt;BR /&gt;#12 0x0000557f44a15c16 (anonymous namespace)::EmitAssemblyHelper::RunOptimizationPipeline(clang::BackendAction, std::unique_ptr&amp;lt;llvm::raw_pwrite_stream, std::default_delete&amp;lt;llvm::raw_pwrite_stream&amp;gt;&amp;gt;&amp;amp;, std::unique_ptr&amp;lt;llvm::ToolOutputFile, std::default_delete&amp;lt;llvm::ToolOutputFile&amp;gt;&amp;gt;&amp;amp;) BackendUtil.cpp:0:0&lt;BR /&gt;#13 0x0000557f44a1120b clang::EmitBackendOutput(clang::DiagnosticsEngine&amp;amp;, clang::HeaderSearchOptions const&amp;amp;, clang::CodeGenOptions const&amp;amp;, clang::TargetOptions const&amp;amp;, clang::LangOptions const&amp;amp;, llvm::StringRef, llvm::Module*, clang::BackendAction, llvm::IntrusiveRefCntPtr&amp;lt;llvm::vfs::FileSystem&amp;gt;, std::unique_ptr&amp;lt;llvm::raw_pwrite_stream, std::default_delete&amp;lt;llvm::raw_pwrite_stream&amp;gt;&amp;gt;) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x5b7920b)&lt;BR /&gt;#14 0x0000557f44db95a3 clang::BackendConsumer::HandleTranslationUnit(clang::ASTContext&amp;amp;) CodeGenAction.cpp:0:0&lt;BR /&gt;#15 0x0000557f45f1626b clang::ParseAST(clang::Sema&amp;amp;, bool, bool) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x707e26b)&lt;BR /&gt;#16 0x0000557f44db7fe8 clang::CodeGenAction::ExecuteAction() (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x5f1ffe8)&lt;BR /&gt;#17 0x0000557f44d297ba clang::FrontendAction::Execute() (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x5e917ba)&lt;BR /&gt;#18 0x0000557f44cb8112 clang::CompilerInstance::ExecuteAction(clang::FrontendAction&amp;amp;) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x5e20112)&lt;BR /&gt;#19 0x0000557f44db497f clang::ExecuteCompilerInvocation(clang::CompilerInstance*) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x5f1c97f)&lt;BR /&gt;#20 0x0000557f42d54431 cc1_main(llvm::ArrayRef&amp;lt;char const*&amp;gt;, char const*, void*) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x3ebc431)&lt;BR /&gt;#21 0x0000557f42d50753 ExecuteCC1Tool(llvm::SmallVectorImpl&amp;lt;char const*&amp;gt;&amp;amp;, llvm::ToolContext const&amp;amp;) driver.cpp:0:0&lt;BR /&gt;#22 0x0000557f42d4ffd3 clang_main(int, char**, llvm::ToolContext const&amp;amp;) (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x3eb7fd3)&lt;BR /&gt;#23 0x0000557f42d5ddde main (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x3ec5dde)&lt;BR /&gt;#24 0x00007fb90f43feb0 __libc_start_call_main (/lib64/libc.so.6+0x3feb0)&lt;BR /&gt;#25 0x00007fb90f43ff60 __libc_start_main@GLIBC_2.2.5 (/lib64/libc.so.6+0x3ff60)&lt;BR /&gt;#26 0x0000557f42d4d5a9 _start (/afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/clang+0x3eb55a9)&lt;BR /&gt;icpx: error: unable to execute command: Segmentation fault (core dumped)&lt;BR /&gt;icpx: error: clang frontend command failed due to signal (use -v to see invocation)&lt;BR /&gt;Intel(R) oneAPI DPC++/C++ Compiler 2024.0.2 (2024.0.2.20231213)&lt;BR /&gt;Target: x86_64-unknown-linux-gnu&lt;BR /&gt;Thread model: posix&lt;BR /&gt;InstalledDir: /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler&lt;BR /&gt;Configuration file: /afs/ifh.de/SL/9/x86_64/opt/intel/2024.02/oneapi/compiler/2024.0/bin/compiler/../icpx.cfg&lt;BR /&gt;icpx: note: diagnostic msg:&lt;BR /&gt;********************&lt;/P&gt;&lt;P&gt;PLEASE ATTACH THE FOLLOWING FILES TO THE BUG REPORT:&lt;BR /&gt;Preprocessed source(s) and associated run script(s) are located at:&lt;BR /&gt;icpx: note: diagnostic msg: /tmp/icpx-6ecd5def6f/WilsonKernelsInstantiationWilsonImplD-64ebc6.cpp&lt;BR /&gt;icpx: note: diagnostic msg: /tmp/icpx-6ecd5def6f/WilsonKernelsInstantiationWilsonImplD-64ebc6.sh&lt;BR /&gt;icpx: note: diagnostic msg:&lt;/P&gt;&lt;P&gt;&amp;nbsp;&lt;/P&gt;&lt;P&gt;This is on Alma Linux 9.3.&lt;/P&gt;</description>
      <pubDate>Thu, 21 Mar 2024 13:09:02 GMT</pubDate>
      <guid>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1582406#M3550</guid>
      <dc:creator>Waschk</dc:creator>
      <dc:date>2024-03-21T13:09:02Z</dc:date>
    </item>
    <item>
      <title>Re: icpx crashes</title>
      <link>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1586069#M3581</link>
      <description>&lt;P&gt;&lt;a href="https://community.intel.com/t5/user/viewprofilepage/user-id/347520"&gt;@Waschk&lt;/a&gt;&amp;nbsp;&lt;BR /&gt;In order for the community to be able to help, please provide a reproducer and exactly reproducing steps.&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Thu, 04 Apr 2024 00:10:41 GMT</pubDate>
      <guid>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1586069#M3581</guid>
      <dc:creator>Alex_Y_Intel</dc:creator>
      <dc:date>2024-04-04T00:10:41Z</dc:date>
    </item>
    <item>
      <title>Re: icpx crashes</title>
      <link>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1586183#M3589</link>
      <description>&lt;P&gt;But I have attached the generated reproducer from the crash. Have you tried it?&lt;/P&gt;</description>
      <pubDate>Thu, 04 Apr 2024 06:38:56 GMT</pubDate>
      <guid>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1586183#M3589</guid>
      <dc:creator>Waschk</dc:creator>
      <dc:date>2024-04-04T06:38:56Z</dc:date>
    </item>
    <item>
      <title>Re: icpx crashes</title>
      <link>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1587852#M3637</link>
      <description>&lt;P&gt;Please try the newest 2024.1 compiler. This issue seems fixed.&amp;nbsp;&lt;/P&gt;</description>
      <pubDate>Tue, 09 Apr 2024 23:01:49 GMT</pubDate>
      <guid>https://community.intel.com/t5/Intel-oneAPI-DPC-C-Compiler/icpx-crashes/m-p/1587852#M3637</guid>
      <dc:creator>Alex_Y_Intel</dc:creator>
      <dc:date>2024-04-09T23:01:49Z</dc:date>
    </item>
  </channel>
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