update throughput metric to use float state

[JKSenthil]

Summary: using float variables can reduce latency of moving these variables onto gpu

Reviewed By: ananthsub

Differential Revision: D46861285

[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D46861285

[codecov[bot]]

Codecov Report

Merging #157 (8f5f340) into main (76ea267) will increase coverage by 0.00%. The diff coverage is 7.31%.

@@           Coverage Diff           @@
##             main     #157   +/-   ##
=======================================
  Coverage   24.45%   24.45%           
=======================================
  Files         176      176           
  Lines       10359    10349   -10     
=======================================
- Hits         2533     2531    -2     
+ Misses       7826     7818    -8     

Impacted Files	Coverage Δ
tests/metrics/aggregation/test_cat.py	35.89% <ø> (ø)
tests/metrics/aggregation/test_throughput.py	33.33% <0.00%> (-2.16%)	:arrow_down:
tests/metrics/test_metric.py	11.85% <0.00%> (-0.09%)	:arrow_down:
tests/metrics/test_toolkit.py	39.50% <ø> (ø)
tests/metrics/window/test_auroc.py	16.43% <ø> (ø)
tests/metrics/window/test_click_through_rate.py	20.68% <ø> (ø)
tests/metrics/window/test_mean_squared_error.py	11.57% <ø> (ø)
tests/metrics/window/test_weighted_calibration.py	21.42% <ø> (ø)
torcheval/metrics/aggregation/cat.py	50.00% <0.00%> (ø)
torcheval/metrics/toolkit.py	37.64% <0.00%> (+4.65%)	:arrow_up:
... and 7 more

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[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D46861285