OpenMP problem with gcc13

[VictorEijkhout]

[ 53%] Building CXX object packages/epetra/src/CMakeFiles/epetra.dir/Epetra_CrsGraphData.cpp.o
cd /work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi/packages/epetra/src && /opt/intel/oneapi/mpi/2021.9.0/bin/mpicxx -DEPETRA_LIB_EXPORTS_MODE -DKOKKOS_DEPENDENCE -Depetra_EXPORTS -I/wo\
rk2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi/packages/epetra/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/\
epetra/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi/packages/teuchos/core/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/core/src -I/work2/00434/eijkhou\
t/trilinos/build-14.4.0-clx-gcc13-impi/packages/kokkos/core/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/kokkos/core/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-i\
mpi/packages/kokkos -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/kokkos/core/src/../../tpls/desul/include -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi/packages/kokkos\
/containers/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/kokkos/containers/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi/packages/kokkos/algorithms/src -I/work\
2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/kokkos/algorithms/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi/packages/kokkos/simd/src -I/work2/00434/eijkhout/trilinos/tri\
linos-14.4.0/packages/kokkos/simd/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/parser/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/parameterlist/\
src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/comm/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/numerics/src -I/work2/00434/eijkhout/trilinos/tril\
inos-14.4.0/packages/teuchos/remainder/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi/packages/teuchos/remainder/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi\
/packages/teuchos/kokkoscompat/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/kokkoscompat/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-gcc13-impi/packages/teuchos\
/kokkoscomm/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/kokkoscomm/src -isystem /opt/intel/oneapi/mkl/2023.1.0/include -isystem /work2/00434/eijkhout/boost/installation-\
boost-1.81.0-clx-gcc13/include -fopenmp  -O3 -DNDEBUG -fPIC -fopenmp -std=c++17 -MD -MT packages/epetra/src/CMakeFiles/epetra.dir/Epetra_CrsGraphData.cpp.o -MF CMakeFiles/epetra.dir/Epetra_CrsGra\
phData.cpp.o.d -o CMakeFiles/epetra.dir/Epetra_CrsGraphData.cpp.o -c /work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/epetra/src/Epetra_CrsGraphData.cpp
/home1/apps/gcc/13.2.0/bin/ld: /opt/intel/oneapi/mkl/2023.1.0/lib/intel64/libmkl_intel_thread.so: undefined reference to `__kmpc_atomic_fixed8_orb_cpt'
/home1/apps/gcc/13.2.0/bin/ld: /opt/intel/oneapi/mkl/2023.1.0/lib/intel64/libmkl_intel_thread.so: undefined reference to `__kmpc_dispatch_next_4'
/home1/apps/gcc/13.2.0/bin/ld: /opt/intel/oneapi/mkl/2023.1.0/lib/intel64/libmkl_intel_thread.so: undefined reference to `__kmpc_for_static_fini'
/home1/apps/gcc/13.2.0/bin/ld: /opt/intel/oneapi/mkl/2023.1.0/lib/intel64/libmkl_intel_thread.so: undefined reference to `__kmpc_dispatch_init_4u'
/home1/apps/gcc/13.2.0/bin/ld: /opt/intel/oneapi/mkl/2023.1.0/lib/intel64/libmkl_intel_thread.so: undefined reference to `__kmpc_atomic_fixed8_rd'

If I compare this with a succesfull build:

[ 54%] Building CXX object packages/epetra/src/CMakeFiles/epetra.dir/Epetra_CrsGraphData.cpp.o
cd /work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel23-impi/packages/epetra/src && /opt/intel/oneapi/mpi/2021.9.0/bin/mpicxx -DEPETRA_LIB_EXPORTS_MODE -DKOKKOS_DEPENDENCE -Depetra_EXPORTS -I/\
work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel23-impi -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel23-impi/packages/epetra/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/pac\
kages/epetra/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel23-impi/packages/teuchos/core/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/core/src -I/work2/00434\
/eijkhout/trilinos/build-14.4.0-clx-intel23-impi/packages/kokkos/core/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/kokkos/core/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-c\
lx-intel23-impi/packages/kokkos -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/kokkos/core/src/../../tpls/desul/include -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel23-impi/p\
ackages/kokkos/containers/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/kokkos/containers/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel23-impi/packages/kokkos/algori\
thms/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/kokkos/algorithms/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel23-impi/packages/kokkos/simd/src -I/work2/00434/eij\
khout/trilinos/trilinos-14.4.0/packages/kokkos/simd/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/parser/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuc\
hos/parameterlist/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/comm/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/numerics/src -I/work2/00434/eijk\
hout/trilinos/trilinos-14.4.0/packages/teuchos/remainder/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel23-impi/packages/teuchos/remainder/src -I/work2/00434/eijkhout/trilinos/build-1\
4.4.0-clx-intel23-impi/packages/teuchos/kokkoscompat/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/kokkoscompat/src -I/work2/00434/eijkhout/trilinos/build-14.4.0-clx-intel\
23-impi/packages/teuchos/kokkoscomm/src -I/work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/teuchos/kokkoscomm/src -isystem /opt/intel/oneapi/mkl/2023.1.0/include -fiopenmp  -O3 -DNDEBUG -f\
PIC -fiopenmp -std=c++17 -MD -MT packages/epetra/src/CMakeFiles/epetra.dir/Epetra_CrsGraphData.cpp.o -MF CMakeFiles/epetra.dir/Epetra_CrsGraphData.cpp.o.d -o CMakeFiles/epetra.dir/Epetra_CrsGraph\
Data.cpp.o -c /work2/00434/eijkhout/trilinos/trilinos-14.4.0/packages/epetra/src/Epetra_CrsGraphData.cpp

RED HERRING I see the use of -fopenmp instead of -fiopenmp THAT'S AN INTEL FLAG.

trilinos_logs.zip

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