3875e1ba45
Summary: Sometimes at::cat gets transposed inputs and goes on a slow path. Also, make jit_premul lstm benchmark add bias to the whole input tensor to avoid separate reduction kernels in the backward pass. Pull Request resolved: https://github.com/pytorch/pytorch/pull/18816 Differential Revision: D15013576 Pulled By: wanchaol fbshipit-source-id: bcfa1cf44180b11b05b0f55f034707012f66281a
Fast RNN benchmarks
Benchmarks for TorchScript models
For most stable results, do the following:
- Set CPU Governor to performance mode (as opposed to energy save)
- Turn off turbo for all CPUs (assuming Intel CPUs)
- Shield cpus via
cset shieldwhen running benchmarks.
Some of these scripts accept command line args but most of them do not because I was lazy. They will probably be added sometime in the future, but the default sizes are pretty reasonable.
Test fastrnns (fwd + bwd) correctness
Test the fastrnns benchmarking scripts with the following:
python -m fastrnns.test
or run the test independently:
python -m fastrnns.test --rnns jit
Run benchmarks
python -m fastrnns.bench
should give a good comparision, or you can specify the type of model to run
python -m fastrnns.bench --rnns cudnn aten jit --group rnns
Run model profiling, calls nvprof
python -m fastrnns.profile
should generate nvprof file for all models somewhere. you can also specify the models to generate nvprof files separately:
python -m fastrnns.profile --rnns aten jit
Caveats
Use Linux for the most accurate timing. A lot of these tests only run on CUDA.