13.1.1 : Test avec un produit de Hadamard
Compilons ce test :
cd SimpleHadamardProduct mkdir -p build cd build cmake .. -- The C compiler identification is GNU 11.3.0 -- The CXX compiler identification is GNU 11.3.0 -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Check for working C compiler: /usr/bin/gcc - skipped -- Detecting C compile features -- Detecting C compile features - done -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Check for working CXX compiler: /usr/bin/g++ - skipped -- Detecting CXX compile features -- Detecting CXX compile features - done -- Use nvc++ compiler at /opt/nvidia/hpc_sdk/Linux_x86_64/23.5/compilers/bin/nvc++ -- Configuring done -- Generating done -- Build files have been written to: XXX/SimpleHadamardProduct/build
Appelons make :
1 2 3 4 |
make [ 50%] Building CXX object CMakeFiles/simple_hadamard_product.dir/main.cpp.o [100%] Linking CXX executable simple_hadamard_product [100%] Built target simple_hadamard_product |
Lançons notre programme :
./simple_hadamard_product x = 0, y = 0, res = 0
Profilons ce programme avec nsys :
nsys profile ./simple_hadamard_product WARNING: CPU IP/backtrace sampling not supported, disabling. Try the 'nsys status --environment' command to learn more.
WARNING: CPU context switch tracing not supported, disabling. Try the 'nsys status --environment' command to learn more.
x = 0, y = 0, res = 0 Generating '/tmp/nsys-report-102d.qdstrm' [1/1] [========================100%] report1.nsys-rep Generated: XXX/SimpleHadamardProduct/build/report1.nsys-rep
Ensuite nous pouvons ouvrir le fichier report1.nsys-rep avec nsight.