Python error when running omniperf profile (UnicodeDecodeError)

Describe the bug omniperf profile crashes with Python error: UnicodeDecodeError

Development Environment:

Linux Distribution: Both Ubuntu 20.04 and Ubuntu 22.04
Omniperf Version: 1.1.0-PR1 (release) Git revision: b9e474e
GPU: MI200

To Reproduce

Run omniperf profile, for example:

omniperf profile --name gemm_test -- ./gemm

Output:

Resolving rocprof
ROC Profiler:  /opt/rocm-6.0.0/bin/rocprof
Traceback (most recent call last):
  File "./omniperf/bin/omniperf", line 889, in <module>
    main()
  File "./omniperf/bin/omniperf", line 738, in main
    args.target = get_soc()
  File "./omniperf/bin/omniperf", line 109, in get_soc
    mspec = specs.get_machine_specs(0)
  File "/home/user/omniperf/bin/utils/specs.py", line 220, in get_machine_specs
    rocm_smi = run(["rocm-smi"])
  File "/home/user/omniperf/bin/utils/specs.py", line 154, in run
    return p.stdout.decode("ascii")
UnicodeDecodeError: 'ascii' codec can't decode byte 0xc2 in position 599: ordinal not in range(128)

Expected behavior Profiling happens successfully

Additional context Changing "ascii" to "utf-8" on that line seems to avoid the issue.

ROCm / rocprofiler-compute

Python error when running omniperf profile (UnicodeDecodeError) #250