Building Level Zero

These instructions have been tested on Ubuntu* and complement those existing for NEO in the top-level BUILD.md file.

For execution, only the level-zero package is needed; for compilation, level-zero-devel package is also required.

Alternatively, build Level Zero loader from source, as indicated in https://github.com/oneapi-src/level-zero.

Build will generate ze_loader library and symlinks, as well as those for ze_validation_layer.

Alternatively, follow instructions in top-level BUILD.md file to build NEO. Level Zero is built by default.

When built, ze_intel_gpu library and symlinks are generated.

Compilation needs to include the Level Zero headers and to link against the loader library:

g++ zello_world_gpu.cpp -o zello_world_gpu -lze_loader

If libraries not installed in system paths, include Level Zero headers and path to Level Zero loader:

g++ -I<path_to_Level_Zero_headers> zello_world_gpu.cpp -o zello_world_gpu -L<path_to_libze_loader.so> -lze_loader

If Level Zero loader packages have been built and installed in the system, then they will be present in system paths:

./zello_world_gpu

Sample output:

Device :
 * name : Intel(R) Graphics Gen9 [0x5912]
 * type : GPU
 * vendorId : 8086

Zello World Results validation PASSED

If libraries not installed in system paths, add paths to ze_loader and ze_intel_gpu libraries:

LD_LIBRARY_PATH=<path_to_libze_loader.so>:<path_to_libze_intel_gpu.so> ./zello_world_gpu

(*) Other names and brands may be claimed as property of others.