complex_mult is a Level Zero example. 
oneCCL is an OpenCL example. 

Example configuration:
./configure -level_zero -bfd=download

Example usage:
tau_exec -T serial,level_zero -l0 ./ze_gemm

How to profile metrics:
L0_METRICGROUP=ComputeBasic tau_exec -T serial,level_zero -l0 ./ze_gemm

To check the metrics available use the tool at examples/gpu/oneapi/l0_check_metrics

Possible Errors with metrics:
System is missing metrics-discovery [https://github.com/intel/metrics-discovery]
Ensure that either /proc/sys/dev/i915/perf_stream_paranoid or /proc/sys/dev/xe/observation_paranoid is set to 0

