lazy instantiation of the nvml singleton

[ryanolson]

No description provided.

[codecov]

Codecov Report

Merging #243 (e6cb39f) into branch-23.01 (6f7b4ad) will increase coverage by 0.03%.
The diff coverage is 80.00%.

Additional details and impacted files

@@               Coverage Diff                @@
##           branch-23.01     #243      +/-   ##
================================================
+ Coverage         46.00%   46.03%   +0.03%     
================================================
  Files               335      335              
  Lines              9278     9280       +2     
  Branches            774      773       -1     
================================================
+ Hits               4268     4272       +4     
+ Misses             5010     5008       -2     

Flag	Coverage Δ
cpp	37.65% <80.00%> (+0.02%)	⬆️
py	39.28% <80.00%> (+0.03%)	⬆️

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Impacted Files	Coverage Δ
cpp/mrc/src/internal/system/device_info.cpp	52.94% <80.00%> (+3.96%)	⬆️
cpp/mrc/src/internal/system/fiber_task_queue.cpp	65.00% <0.00%> (+2.50%)	⬆️

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[drobison00]

LGTM

[mdemoret-nv]

@gpucibot merge