Currently Loaded Modulefiles: 1) modules/3.2.11.3 2) Base-opts/2.4.139-7.0.1.1_4.6__gbb799dd.ari 3) gcc/8.3.0 4) craype-haswell 5) craype-network-aries 6) craype/2.6.1 7) cray-mpich/7.7.10 8) slurm/19.05.3-2 9) xalt/2.7.24 10) cray-libsci/19.06.1 11) pmi/5.0.14 12) atp/2.1.3 13) rca/2.2.20-7.0.1.1_4.9__g8e3fb5b.ari 14) perftools-base/7.1.1 15) PrgEnv-gnu/6.0.5 16) daint-gpu 17) cudatoolkit/10.1.105_3.27-7.0.1.1_4.1__ga311ce7 18) CMake/3.14.5 + umask 0002 + mkdir --mode=0775 -p /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu + cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu + tee -a build.out ++ command -v srun + cmake -DCMAKE_SYSTEM_NAME=CrayLinuxEnvironment -DCMAKE_CROSSCOMPILING_EMULATOR= -DUSE_CUDA=ON -DUSE_CUBLAS=ON -DWITH_GPU=P100 -DBLAS_FOUND=ON -DBLAS_LIBRARIES=-lsci_gnu_mpi_mp -DLAPACK_FOUND=ON -DLAPACK_LIBRARIES=-lsci_gnu_mpi_mp -DMPIEXEC_EXECUTABLE=/usr/bin/srun -DTEST_MPI_RANKS=4 -DTEST_OMP_THREADS=3 /users/jenkg90/workspace/g90/DBCSR -- The C compiler identification is GNU 8.3.0 -- The CXX compiler identification is GNU 8.3.0 -- Cray Linux Environment 7.0.UP01 -- Cray Programming Environment 2.6.1 C -- Check for working C compiler: /opt/cray/pe/craype/2.6.1/bin/cc -- Check for working C compiler: /opt/cray/pe/craype/2.6.1/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Cray Programming Environment 2.6.1 CXX -- Check for working CXX compiler: /opt/cray/pe/craype/2.6.1/bin/CC -- Check for working CXX compiler: /opt/cray/pe/craype/2.6.1/bin/CC -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done -- The Fortran compiler identification is GNU 8.3.0 -- Cray Programming Environment 2.6.1 Fortran -- Check for working Fortran compiler: /opt/cray/pe/craype/2.6.1/bin/ftn -- Check for working Fortran compiler: /opt/cray/pe/craype/2.6.1/bin/ftn -- works -- Detecting Fortran compiler ABI info -- Detecting Fortran compiler ABI info - done -- Checking whether /opt/cray/pe/craype/2.6.1/bin/ftn supports Fortran 90 -- Checking whether /opt/cray/pe/craype/2.6.1/bin/ftn supports Fortran 90 -- yes -- Found BLAS: -lsci_gnu_mpi_mp -- Looking for pthread.h -- Looking for pthread.h - found -- Looking for pthread_create -- Looking for pthread_create - found -- Found Threads: TRUE -- A library with LAPACK API found. -- Found PkgConfig: /usr/bin/pkg-config (found version "0.29.2") -- Found Python: /usr/bin/python3.6 (found version "3.6.8") found components: Interpreter -- Found MPI_C: /opt/cray/pe/craype/2.6.1/bin/cc (found version "3.1") -- Found MPI_CXX: /opt/cray/pe/craype/2.6.1/bin/CC (found version "3.1") -- Found MPI_Fortran: /opt/cray/pe/craype/2.6.1/bin/ftn (found version "3.1") -- Found MPI: TRUE (found version "3.1") found components: C CXX Fortran -- Found OpenMP_C: -fopenmp (found version "4.5") -- Found OpenMP_CXX: -fopenmp (found version "4.5") -- Found OpenMP_Fortran: -fopenmp (found version "4.5") -- Found OpenMP: TRUE (found version "4.5") -- Using BLAS for Small Matrix Multiplication -- The CUDA compiler identification is NVIDIA 10.1.105 -- Check for working CUDA compiler: /opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/bin/nvcc -- Check for working CUDA compiler: /opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/bin/nvcc -- works -- Detecting CUDA compiler ABI info -- Detecting CUDA compiler ABI info - done -- GPU target architecture: P100 -- GPU architecture number: 60 -- Found cuBLAS: /opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/lib/stubs/libcublas.so -- Setting build type to 'Release' as none was specified. -- Performing Test f2008-norm2 -- Performing Test f2008-norm2 - Success -- Performing Test f2008-block_construct -- Performing Test f2008-block_construct - Success -- Performing Test f2008-contiguous -- Performing Test f2008-contiguous - Success -- Performing Test f95-reshape-order-allocatable -- Performing Test f95-reshape-order-allocatable - Success -- FYPP preprocessor found. Tests will run with 4 MPI ranks and 3 OpenMP threads each -- Configuring done -- Generating done -- Build files have been written to: /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu + tee -a build.out + make VERBOSE=1 -j /apps/daint/UES/jenkins/7.0.UP01/gpu/easybuild/software/CMake/3.14.5/bin/cmake -S/users/jenkg90/workspace/g90/DBCSR -B/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu --check-build-system CMakeFiles/Makefile.cmake 0 /apps/daint/UES/jenkins/7.0.UP01/gpu/easybuild/software/CMake/3.14.5/bin/cmake -E cmake_progress_start /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/CMakeFiles /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/CMakeFiles/progress.marks make -f CMakeFiles/Makefile2 all make[1]: Entering directory '/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu' make -f src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/build.make src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/depend make -f src/CMakeFiles/acc.dir/build.make src/CMakeFiles/acc.dir/depend make[2]: Entering directory '/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu' cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu && /apps/daint/UES/jenkins/7.0.UP01/gpu/easybuild/software/CMake/3.14.5/bin/cmake -E cmake_depends "Unix Makefiles" /users/jenkg90/workspace/g90/DBCSR /users/jenkg90/workspace/g90/DBCSR/src /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/CMakeFiles/acc.dir/DependInfo.cmake --color= make[2]: Entering directory '/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu' Dependee "/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/CMakeFiles/acc.dir/DependInfo.cmake" is newer than depender "/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/CMakeFiles/acc.dir/depend.internal". Dependee "/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/CMakeFiles/CMakeDirectoryInformation.cmake" is newer than depender "/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/CMakeFiles/acc.dir/depend.internal". [ 1%] libsmm_acc: generating parameters for GPU P100 [ 1%] libsmm_acc: generating kernels cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc && /usr/bin/python3.6 /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/generate_kernels.py /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/kernels cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc && /usr/bin/python3.6 /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/generate_parameters.py --gpu_version=P100 --base_dir=/users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/parameters Scanning dependencies of target acc Found 7 kernel files: <- /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/kernels/smm_acc_dnt_medium.h <- /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/kernels/smm_acc_dnt_largeDB1.h <- /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/kernels/smm_acc_transpose.h <- /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/kernels/smm_acc_common.h <- /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/kernels/smm_acc_dnt_largeDB2.h <- /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/kernels/smm_acc_dnt_small.h <- /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/kernels/smm_acc_dnt_tiny.h Re-write kernels as strings... Wrote kernel string to file -> smm_acc_kernels.h make[2]: Leaving directory '/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu' make -f src/CMakeFiles/acc.dir/build.make src/CMakeFiles/acc.dir/build make[2]: Entering directory '/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu' [ 1%] Building CXX object src/CMakeFiles/acc.dir/acc/acc_error.cpp.o [ 1%] Building CXX object src/CMakeFiles/acc.dir/acc/acc_dev.cpp.o [ 1%] Building CXX object src/CMakeFiles/acc.dir/acc/acc_event.cpp.o [ 1%] Building CXX object src/CMakeFiles/acc.dir/acc/acc_stream.cpp.o [ 2%] Building CXX object src/CMakeFiles/acc.dir/acc/cuda/acc_cuda.cpp.o [ 2%] Building CXX object src/CMakeFiles/acc.dir/acc/acc_init.cpp.o [ 4%] Building CUDA object src/CMakeFiles/acc.dir/acc/cublaswrap/cublas.cu.o [ 4%] Building CXX object src/CMakeFiles/acc.dir/acc/acc_mem.cpp.o [ 4%] Building CUDA object src/CMakeFiles/acc.dir/acc/cuda/dbcsr_cuda_nvtx_cu.cu.o cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/cray/pe/craype/2.6.1/bin/CC -D__CUDA -D__DBCSR_ACC=2 -I/opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -std=gnu++11 -o CMakeFiles/acc.dir/acc/acc_event.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_event.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/cray/pe/craype/2.6.1/bin/CC -D__CUDA -D__DBCSR_ACC=2 -I/opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -std=gnu++11 -o CMakeFiles/acc.dir/acc/acc_dev.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_dev.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/cray/pe/craype/2.6.1/bin/CC -D__CUDA -D__DBCSR_ACC=2 -I/opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -std=gnu++11 -o CMakeFiles/acc.dir/acc/acc_error.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_error.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/cray/pe/craype/2.6.1/bin/CC -D__CUDA -D__DBCSR_ACC=2 -I/opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -std=gnu++11 -o CMakeFiles/acc.dir/acc/acc_stream.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_stream.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/cray/pe/craype/2.6.1/bin/CC -D__CUDA -D__DBCSR_ACC=2 -I/opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -std=gnu++11 -o CMakeFiles/acc.dir/acc/cuda/acc_cuda.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/cuda/acc_cuda.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/cray/pe/craype/2.6.1/bin/CC -D__CUDA -D__DBCSR_ACC=2 -I/opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -std=gnu++11 -o CMakeFiles/acc.dir/acc/acc_init.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_init.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/cray/pe/craype/2.6.1/bin/CC -D__CUDA -D__DBCSR_ACC=2 -I/opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -std=gnu++11 -o CMakeFiles/acc.dir/acc/acc_mem.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_mem.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/bin/nvcc -D__CUDA -D__DBCSR_ACC=2 -arch=sm_60 --cudart static -D__CUDA -O3 -DNDEBUG -std=c++11 -x cu -c /users/jenkg90/workspace/g90/DBCSR/src/acc/cuda/dbcsr_cuda_nvtx_cu.cu -o CMakeFiles/acc.dir/acc/cuda/dbcsr_cuda_nvtx_cu.cu.o cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src && /opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/bin/nvcc -D__CUDA -D__DBCSR_ACC=2 -arch=sm_60 --cudart static -D__CUDA -O3 -DNDEBUG -std=c++11 -x cu -c /users/jenkg90/workspace/g90/DBCSR/src/acc/cublaswrap/cublas.cu -o CMakeFiles/acc.dir/acc/cublaswrap/cublas.cu.o /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_event.cpp: In function 'int acc_event_create(void**)': /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_event.cpp:29:28: error: format '%d' expects argument of type 'int', but argument 3 has type 'cudaEvent_t' {aka 'CUevent_st*'} [-Werror=format=] if(verbose_print) printf("EventCreate) : %p -> %d\n", *event_p, *acc_event); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~ /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_event.cpp: In function 'int acc_event_record(void*, void*)': /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_event.cpp:55:30: error: format '%d' expects argument of type 'int', but argument 3 has type 'cudaEvent_t' {aka 'CUevent_st*'} [-Werror=format=] if(verbose_print) printf("EventRecord): %p -> %d, %p -> %d\n", acc_event, *acc_event, acc_stream, *acc_stream); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~~~ /users/jenkg90/workspace/g90/DBCSR/src/acc/acc_event.cpp:55:30: error: format '%d' expects argument of type 'int', but argument 5 has type 'cudaStream_t' {aka 'CUstream_st*'} [-Werror=format=] cc1plus: all warnings being treated as errors make[2]: *** [src/CMakeFiles/acc.dir/build.make:89: src/CMakeFiles/acc.dir/acc/acc_event.cpp.o] Error 1 make[2]: *** Waiting for unfinished jobs.... make[2]: Leaving directory '/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu' make[1]: *** [CMakeFiles/Makefile2:1195: src/CMakeFiles/acc.dir/all] Error 2 make[1]: *** Waiting for unfinished jobs.... GPU version: P100 About to process 74,104 kernels from file /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/parameters/parameters_P100.json GPU warp size: 32 Get parameters and write to file Found 74,104 kernels in file /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/parameters/parameters_P100.json Printing them to file parameters.h cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu && /apps/daint/UES/jenkins/7.0.UP01/gpu/easybuild/software/CMake/3.14.5/bin/cmake -E cmake_depends "Unix Makefiles" /users/jenkg90/workspace/g90/DBCSR /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/DependInfo.cmake --color= Dependee "/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/DependInfo.cmake" is newer than depender "/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/depend.internal". Dependee "/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc/CMakeFiles/CMakeDirectoryInformation.cmake" is newer than depender "/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/depend.internal". Scanning dependencies of target libsmm_acc make[2]: Leaving directory '/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu' make -f src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/build.make src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/build make[2]: Entering directory '/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu' [ 4%] Building CXX object src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/libsmm_acc_benchmark.cpp.o [ 4%] Building CXX object src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/libsmm_acc_init.cpp.o [ 4%] Building CXX object src/acc/libsmm_acc/CMakeFiles/libsmm_acc.dir/libsmm_acc.cpp.o cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc && /opt/cray/pe/craype/2.6.1/bin/CC -DARCH_NUMBER=60 -D__CUDA -I/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc -I/users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc -isystem /opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -fopenmp -std=gnu++11 -o CMakeFiles/libsmm_acc.dir/libsmm_acc_init.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/libsmm_acc_init.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc && /opt/cray/pe/craype/2.6.1/bin/CC -DARCH_NUMBER=60 -D__CUDA -I/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc -I/users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc -isystem /opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -fopenmp -std=gnu++11 -o CMakeFiles/libsmm_acc.dir/libsmm_acc.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/libsmm_acc.cpp cd /scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc && /opt/cray/pe/craype/2.6.1/bin/CC -DARCH_NUMBER=60 -D__CUDA -I/scratch/snx3000/jenkg90/jenkins-g90-DBCSR-406.gnu/src/acc/libsmm_acc -I/users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc -isystem /opt/nvidia/cudatoolkit10/10.1.105_3.27-7.0.1.1_4.1__ga311ce7/targets/x86_64-linux/include -O3 -funroll-loops -Wall -Werror -fopenmp -std=gnu++11 -o CMakeFiles/libsmm_acc.dir/libsmm_acc_benchmark.cpp.o -c /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/libsmm_acc_benchmark.cpp /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/libsmm_acc.cpp: In function 'void validate_kernel(CUfunc_st*&, CUstream, int, int, int, int, int)': /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/libsmm_acc.cpp:85:9: error: unused variable 'res' [-Werror=unused-variable] int res = launch_kernel_from_handle(kern_func, ((h->n_stack + grouping - 1) / grouping), threads, stream, args); ^~~ /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/libsmm_acc_benchmark.cpp: In function 'int libsmm_acc_benchmark(libsmm_acc_benchmark_t*, int, int, int, int, int (**)(const int*, int, CUstream, int, int, int, const double*, const double*, double*), char**)': /users/jenkg90/workspace/g90/DBCSR/src/acc/libsmm_acc/libsmm_acc_benchmark.cpp:320:19: error: 'n_iter' may be used uninitialized in this function [-Werror=maybe-uninitialized] for(int i=0; i