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Prereqs: - https://github.com/pytorch/pytorch/pull/152708 Features: 1. Adds inductor's estimate of flops and bandwidth to the json trace events that perfetto uses. 1. Only use the tflops estimation from triton if we don't have the info from the datasheet because Triton's estimates are inaccurate. I have a backlog item to fix triton flops estimation upstream. New `DeviceInfo` class, and new function `get_device_tflops`. 1. New helpers `countable_fx` and `count_flops_fx` helps get the flops of an `fx.Node`. 1. Extends Triton `torch.profiler` logging to `DebugAutotuner`. 1. New script `profile_analysis.py`: `--augment_trace` adds perf estimates to any perfetto json trace, `--analyze` creates a summary table of these perf estimates, and `--diff` will compare two traces side by side: ```python Device(NVIDIA H100, 0): Kernel Name | resnet Kernel Count | resnet FLOPS | resnet bw gbps | resnet Dur (ms) | resnet Achieved FLOPS % | resnet Achieved Bandwidth % | newresnet Kernel Count | newresnet FLOPS | newresnet bw gbps | newresnet Dur (ms) | newresnet Achieved FLOPS % | newresnet Achieved Bandwidth % --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- triton_poi_fused__native_batch_norm_legi | 24 | 0 | 0.11395268248131513 | 2.5919166666666666 | 0 | 0.003401572611382541 | 24 | 0 | 0.11395268248131513 | 2.5919166666666666 | 0 | 0.003401572611382541 sm90_xmma_fprop_implicit_gemm_f32f32_tf3 | 142 | 16932673552.422373 | 0.2585007824198784 | 12.441619718309857 | 0.08683422334575583 | 0.007716441266265022 | 142 | 16932673552.422373 | 0.2585007824198784 | 12.441619718309857 | 0.08683422334575583 | 0.007716441266265022 triton_red_fused__native_batch_norm_legi | 39 | 0 | 0.13990024992108846 | 5.752589743589743 | 0 | 0.004176126863316074 | 39 | 0 | 0.13990024992108846 | 5.752589743589743 | 0 | 0.004176126863316074 triton_poi_fused__native_batch_norm_legi | 25 | 0 | 0.31824055917536503 | 2.5291999999999994 | 0 | 0.009499718184339253 | 25 | 0 | 0.31824055917536503 | 2.5291999999999994 | 0 | 0.009499718184339253 void cutlass::Kernel2<cutlass_80_tensoro | 98 | 16211056473.596165 | 0.42972434051025826 | 7.130408163265306 | 0.08313362294151874 | 0.012827592254037562 | 98 | 16211056473.596165 | 0.42972434051025826 | 7.130408163265306 | 0.08313362294151874 | 0.012827592254037562 triton_red_fused__native_batch_norm_legi | 73 | 0 | 0.3225381327611705 | 9.987068493150682 | 0 | 0.009628003963020014 | 73 | 0 | 0.3225381327611705 | 9.987068493150682 | 0 | 0.009628003963020014 triton_poi_fused__native_batch_norm_legi | 15 | 0 | 1.4491211346487216 | 4.439333333333333 | 0 | 0.043257347302946926 | 15 | 0 | 1.4491211346487216 | 4.439333333333333 | 0 | 0.043257347302946926 void cutlass::Kernel2<cutlass_80_tensoro | 186 | 14501701145.337954 | 0.2667131401910989 | 7.873865591397849 | 0.07436769818122027 | 0.007961586274361157 | 186 | 14501701145.337954 | 0.2667131401910989 | 7.873865591397849 | 0.07436769818122027 | 0.007961586274361157 triton_poi_fused__native_batch_norm_legi | 33 | 0 | 1.4924556538193923 | 4.3101515151515155 | 0 | 0.044550915039384846 | 33 | 0 | 1.4924556538193923 | 4.3101515151515155 | 0 | 0.044550915039384846 triton_red_fused__native_batch_norm_legi | 29 | 0 | 0.25562590522631107 | 6.296275862068965 | 0 | 0.007630624036606301 | 29 | 0 | 0.25562590522631107 | 6.296275862068965 | 0 | 0.007630624036606301 triton_poi_fused__native_batch_norm_legi | 13 | 0 | 0.5870562174192726 | 2.7397692307692307 | 0 | 0.01752406619162008 | 13 | 0 | 0.5870562174192726 | 2.7397692307692307 | 0 | 0.01752406619162008 triton_poi_fused__native_batch_norm_legi | 34 | 0 | 0.41409928846284 | 2.853588235294117 | 0 | 0.012361172789935523 | 34 | 0 | 0.41409928846284 | 2.853588235294117 | 0 | 0.012361172789935523 triton_per_fused__native_batch_norm_legi | 34 | 0 | 0.11705315007018151 | 3.460647058823529 | 0 | 0.0034941238826919864 | 34 | 0 | 0.11705315007018151 | 3.460647058823529 | 0 | 0.0034941238826919864 triton_poi_fused__native_batch_norm_legi | 16 | 0 | 0.17207853197124584 | 2.3459375000000002 | 0 | 0.005136672596156592 | 16 | 0 | 0.17207853197124584 | 2.3459375000000002 | 0 | 0.005136672596156592 triton_per_fused__native_batch_norm_legi | 30 | 0 | 0.2639714322022256 | 6.131199999999999 | 0 | 0.007879744244842555 | 30 | 0 | 0.2639714322022256 | 6.131199999999999 | 0 | 0.007879744244842555 sm90_xmma_fprop_implicit_gemm_f32f32_tf3 | 100 | 11875430356.891787 | 0.19494470869421385 | 16.36534 | 0.06089964285585531 | 0.005819245035648175 | 100 | 11875430356.891787 | 0.19494470869421385 | 16.36534 | 0.06089964285585531 | 0.005819245035648175 triton_poi_fused__native_batch_norm_legi | 8 | 0 | 0.9854096626224687 | 3.2757500000000004 | 0 | 0.029415213809625928 | 8 | 0 | 0.9854096626224687 | 3.2757500000000004 | 0 | 0.029415213809625928 void cublasLt::splitKreduce_kernel<32, 1 | 56 | 34377923395.147064 | 0.8310300045762317 | 3.4199999999999986 | 0.17629704305203628 | 0.024806865808245714 | 56 | 34377923395.147064 | 0.8310300045762317 | 3.4199999999999986 | 0.17629704305203628 | 0.024806865808245714 triton_poi_fused__native_batch_norm_legi | 23 | 0 | 0.9944002965861103 | 3.2431304347826084 | 0 | 0.02968359094286896 | 23 | 0 | 0.9944002965861103 | 3.2431304347826084 | 0 | 0.02968359094286896 triton_per_fused__native_batch_norm_legi | 10 | 0 | 0.1826801058931057 | 4.428800000000001 | 0 | 0.00545313748934644 | 10 | 0 | 0.1826801058931057 | 4.428800000000001 | 0 | 0.00545313748934644 triton_poi_fused__native_batch_norm_legi | 10 | 0 | 0.3168973585366449 | 2.5471999999999997 | 0 | 0.009459622642884923 | 10 | 0 | 0.3168973585366449 | 2.5471999999999997 | 0 | 0.009459622642884923 triton_poi_fused__native_batch_norm_legi | 34 | 0 | 1.1463614897015777 | 4.124323529411764 | 0 | 0.03421974596124114 | 34 | 0 | 1.1463614897015777 | 4.124323529411764 | 0 | 0.03421974596124114 void cask_plugin_cudnn::xmma_cudnn::init | 44 | 44045510816.64277 | 2.0661232850348643 | 3.6887499999999993 | 0.22587441444432194 | 0.06167532194133924 | 44 | 44045510816.64277 | 2.0661232850348643 | 3.6887499999999993 | 0.22587441444432194 | 0.06167532194133924 sm90_xmma_fprop_implicit_gemm_f32f32_tf3 | 95 | 7876855400.165316 | 0.4694941555946739 | 18.224315789473682 | 0.04039413025725802 | 0.014014750913273854 | 95 | 7876855400.165316 | 0.4694941555946739 | 18.224315789473682 | 0.04039413025725802 | 0.014014750913273854 triton_per_fused__native_batch_norm_legi | 41 | 0 | 0.06825669875995298 | 3.0384146341463416 | 0 | 0.002037513395819492 | 41 | 0 | 0.06825669875995298 | 3.0384146341463416 | 0 | 0.002037513395819492 triton_poi_fused__native_batch_norm_legi | 23 | 0 | 0.08808154712430301 | 2.3275652173913044 | 0 | 0.0026292999141582997 | 23 | 0 | 0.08808154712430301 | 2.3275652173913044 | 0 | 0.0026292999141582997 triton_per_fused__native_batch_norm_legi | 40 | 0 | 0.18179321034952417 | 4.556825 | 0 | 0.005426662995508183 | 40 | 0 | 0.18179321034952417 | 4.556825 | 0 | 0.005426662995508183 triton_poi_fused__native_batch_norm_legi | 15 | 0 | 0.5887415155454232 | 2.783866666666667 | 0 | 0.017574373598370836 | 15 | 0 | 0.5887415155454232 | 2.783866666666667 | 0 | 0.017574373598370836 void cutlass::Kernel2<cutlass_80_tensoro | 38 | 14242013806.264643 | 0.256592404353939 | 7.217631578947369 | 0.0730359682372546 | 0.007659474756834 | 38 | 14242013806.264643 | 0.256592404353939 | 7.217631578947369 | 0.0730359682372546 | 0.007659474756834 triton_poi_fused__native_batch_norm_legi | 21 | 0 | 0.5842860973430516 | 2.7779047619047623 | 0 | 0.017441376040091088 | 21 | 0 | 0.5842860973430516 | 2.7779047619047623 | 0 | 0.017441376040091088 triton_per_fused__native_batch_norm_legi | 16 | 0 | 0.11509365173486417 | 3.5959375000000002 | 0 | 0.0034356313950705724 | 16 | 0 | 0.11509365173486417 | 3.5959375000000002 | 0 | 0.0034356313950705724 triton_poi_fused__native_batch_norm_legi | 14 | 0 | 0.1704672000243914 | 2.4044285714285714 | 0 | 0.00508857313505646 | 14 | 0 | 0.1704672000243914 | 2.4044285714285714 | 0 | 0.00508857313505646 triton_poi_fused__native_batch_norm_legi | 58 | 0 | 2.307520779930795 | 8.190706896551722 | 0 | 0.06888121731136704 | 58 | 0 | 2.307520779930795 | 8.190706896551722 | 0 | 0.06888121731136704 triton_per_fused__native_batch_norm_legi | 29 | 0 | 0.037243248971881276 | 3.0277586206896556 | 0 | 0.001111738775280038 | 29 | 0 | 0.037243248971881276 | 3.0277586206896556 | 0 | 0.001111738775280038 triton_poi_fused__native_batch_norm_legi | 20 | 0 | 0.04741699795428918 | 2.2911500000000005 | 0 | 0.0014154327747549007 | 20 | 0 | 0.04741699795428918 | 2.2911500000000005 | 0 | 0.0014154327747549007 triton_per_fused__native_batch_norm_legi | 25 | 0 | 0.13357016893727824 | 3.37536 | 0 | 0.003987169222008305 | 25 | 0 | 0.13357016893727824 | 3.37536 | 0 | 0.003987169222008305 triton_poi_fused__native_batch_norm_legi | 13 | 0 | 0.3089862268300253 | 2.8111538461538457 | 0 | 0.009223469457612694 | 13 | 0 | 0.3089862268300253 | 2.8111538461538457 | 0 | 0.009223469457612694 triton_poi_fused__native_batch_norm_legi | 17 | 0 | 0.3129385387909844 | 2.673 | 0 | 0.009341448919133863 | 17 | 0 | 0.3129385387909844 | 2.673 | 0 | 0.009341448919133863 triton_per_fused__native_batch_norm_legi | 19 | 0 | 0.2215568162533158 | 3.8837368421052636 | 0 | 0.0066136363060691275 | 19 | 0 | 0.2215568162533158 | 3.8837368421052636 | 0 | 0.0066136363060691275 std::enable_if<!(false), void>::type int | 23 | 504916805.19297093 | 1.0118296096314707 | 8.113913043478261 | 0.0025893169497075447 | 0.030203868944223014 | 23 | 504916805.19297093 | 1.0118296096314707 | 8.113913043478261 | 0.0025893169497075447 | 0.030203868944223014 triton_poi_fused_add_copy__38 | 56 | 0 | 0 | 2.132482142857143 | 0 | 0 | 56 | 0 | 0 | 2.132482142857143 | 0 | 0 triton_poi_fused_convolution_0 | 18 | 0 | 0.43458610794936897 | 2.773333333333334 | 0 | 0.012972719640279667 | 18 | 0 | 0.43458610794936897 | 2.773333333333334 | 0 | 0.012972719640279667 triton_poi_fused_convolution_1 | 17 | 0 | 0.028816312469162712 | 2.6145882352941174 | 0 | 0.0008601884319153051 | 17 | 0 | 0.028816312469162712 | 2.6145882352941174 | 0 | 0.0008601884319153051 void convolve_common_engine_float_NHWC<f | 44 | 8641868995.31118 | 0.024730540008465626 | 25.87327272727273 | 0.04431727689903169 | 0.0007382250748795709 | 44 | 8641868995.31118 | 0.024730540008465626 | 25.87327272727273 | 0.04431727689903169 | 0.0007382250748795709 triton_per_fused__native_batch_norm_legi | 12 | 0 | 0.6809930918986744 | 4.82675 | 0 | 0.020328151996975356 | 12 | 0 | 0.6809930918986744 | 4.82675 | 0 | 0.020328151996975356 triton_per_fused__native_batch_norm_legi | 14 | 0 | 0.02883030597936608 | 2.6651428571428575 | 0 | 0.0008606061486377935 | 14 | 0 | 0.02883030597936608 | 2.6651428571428575 | 0 | 0.0008606061486377935 triton_per_fused__native_batch_norm_legi | 16 | 0 | 0.0014658988233201874 | 2.098 | 0 | 4.375817383045335e-05 | 16 | 0 | 0.0014658988233201874 | 2.098 | 0 | 4.375817383045335e-05 triton_poi_fused__native_batch_norm_legi | 13 | 0 | 0.9926297180284697 | 3.2367692307692306 | 0 | 0.02963073785159611 | 13 | 0 | 0.9926297180284697 | 3.2367692307692306 | 0 | 0.02963073785159611 triton_poi_fused__native_batch_norm_legi | 9 | 0 | 1.3008817095666507 | 3.0863333333333336 | 0 | 0.03883228983781048 | 9 | 0 | 1.3008817095666507 | 3.0863333333333336 | 0 | 0.03883228983781048 void at::native::(anonymous namespace):: | 98 | 0 | 0.09174335613709389 | 4.408520408163265 | 0 | 0.0027386076458833994 | 98 | 0 | 0.09174335613709389 | 4.408520408163265 | 0 | 0.0027386076458833994 void at::native::vectorized_elementwise_ | 7 | 0 | 0 | 1.7278571428571428 | 0 | 0 | 7 | 0 | 0 | 1.7278571428571428 | 0 | 0 ``` Pull Request resolved: https://github.com/pytorch/pytorch/pull/149697 Approved by: https://github.com/eellison, https://github.com/shunting314
2.5 KiB
2.5 KiB
torch._inductor.analysis
Contains scripts for inductor performance analysis.
Analysis
This will analyze a chrome trace to create a table useful for performance work. We mainly care about . Currently, it will add the flops and the memory reads of a kernel via formula (it's not looking at program counters or anything.) These, combined with the kernel duration, can be use to calculate achieved flops, achieved memory bandwidth, and roofline calculations.
Usage
python profile_analysis.py --analysis <input_json_profile> <default_dtype>
Arguments
input_json_profile: The json profile files generated bytorch.profile.export_chrome_trace().default_dtype: The default dtype of the model. Sometimes the dtypes of the kernel inputs are not available in the profile, so we use the default dtype to infer the dtypes of the inputs.
Diff
This mode will diff two different profiles and output a table of the differences. It groups by kernel name, which can fail to properly match accross hardware vendors. More intelligent grouping coming soon.
Usage
python profile_analysis.py --diff <json_profile_1> <profile_name_1> <json_profile_2> <profile_name_2> <default_dtype> --name_limit 50
Arguments
json_profile_1json_profile_2: The json profile files generated bytorch.profile.export_chrome_trace().profile_name_1profile_name_2: The name of the profile. This is used to identify the profile in the output table.default_dtype: The default dtype of the model. Sometimes the dtypes of the kernel inputs are not available in the profile, so we use the default dtype to infer the dtypes of the inputs.name_limit: The maximum number of characters in the kernel name (they can be quite lengthly and hard to read).
Augment
This mode will add post-hoc analysis to a profile. Currently, it will add the flops and the memory reads of a kernel via formula (it's not looking at program counters or anything.) These, combined with the kernel duration, can be use to calculate achieved flops, achieved memory bandwidth, and roofline calculations.
Usage
python profile_analysis.py --augment_trace <input_json_profile> <output_json_profile> <default_dtype>
Arguments
input_json_profile: The json profile files generated bytorch.profile.export_chrome_trace().output_json_profile: Where the augmented profile is written.default_dtype: The default dtype of the model. Sometimes the dtypes of the kernel inputs are not available in the profile, so we use the default dtype to infer the dtypes of the inputs.