Create op benchmark for stack

[submarat]

Summary: - Add benchmark for stack op

Test Plan:

buck build mode/opt //caffe2/benchmarks/operator_benchmark/pt:stack_test --show-output
MKL_NUM_THREADS=1 OMP_NUM_THREADS=1 buck-out/gen/caffe2/benchmarks/operator_benchmark/pt/stack_test.par --tag_filter=static_runtime | grep Execution

Forward Execution Time (us) : 6.380
Forward Execution Time (us) : 6.553
Forward Execution Time (us) : 14.904
Forward Execution Time (us) : 5.657
Forward Execution Time (us) : 5.612
Forward Execution Time (us) : 6.051
Forward Execution Time (us) : 4.225
Forward Execution Time (us) : 4.240
Forward Execution Time (us) : 6.280
Forward Execution Time (us) : 6.267
Forward Execution Time (us) : 418.932
Forward Execution Time (us) : 417.694
Forward Execution Time (us) : 1592.455
Forward Execution Time (us) : 2919.261
Forward Execution Time (us) : 211.458
Forward Execution Time (us) : 211.518
Forward Execution Time (us) : 783.953
Forward Execution Time (us) : 1457.823
Forward Execution Time (us) : 2032.816
Forward Execution Time (us) : 2090.662
Forward Execution Time (us) : 6487.098
Forward Execution Time (us) : 11874.702
Forward Execution Time (us) : 2123.830
Forward Execution Time (us) : 2195.453
Forward Execution Time (us) : 6435.978
Forward Execution Time (us) : 11852.205
Forward Execution Time (us) : 2036.526
Forward Execution Time (us) : 2055.618
Forward Execution Time (us) : 6417.192
Forward Execution Time (us) : 12468.744
Forward Execution Time (us) : 4959.704
Forward Execution Time (us) : 5121.823
Forward Execution Time (us) : 5082.105
Forward Execution Time (us) : 5395.936
Forward Execution Time (us) : 5162.756
Forward Execution Time (us) : 23798.080
Forward Execution Time (us) : 4957.921
Forward Execution Time (us) : 4971.234
Forward Execution Time (us) : 5005.909
Forward Execution Time (us) : 5159.614
Forward Execution Time (us) : 5013.221
Forward Execution Time (us) : 20238.741
Forward Execution Time (us) : 7632.439
Forward Execution Time (us) : 7589.376
Forward Execution Time (us) : 7859.937
Forward Execution Time (us) : 8214.213
Forward Execution Time (us) : 11606.562
Forward Execution Time (us) : 34612.919

Differential Revision: D25859143

[facebook-github-bot]

💊 CI failures summary and remediations

As of commit 38dd429 (more details on the Dr. CI page):

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💚 💚 Looks good so far! There are no failures yet. 💚 💚

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[facebook-github-bot]

This pull request was exported from Phabricator. Differential Revision: D25859143

[codecov]

Codecov Report

Merging #51263 (38dd429) into master (12a434a) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master   #51263      +/-   ##
==========================================
- Coverage   80.86%   80.86%   -0.01%     
==========================================
  Files        1931     1931              
  Lines      210810   210810              
==========================================
- Hits       170469   170467       -2     
- Misses      40341    40343       +2     

[facebook-github-bot]

This pull request has been merged in 721ba97.