Add fake quantize operator that works in backward pass #40532

durumu · 2020-06-24T20:47:49Z

This diff adds FakeQuantizeWithBackward. This works the same way as the regular FakeQuantize module, allowing QAT to occur in the forward pass, except it has an additional quantize_backward parameter. When quantize_backward is enabled, the gradients are fake quantized as well (dynamically, using hard-coded values). This allows the user to see whether there would be a significant loss of accuracy if the gradients were quantized in their model.

Stack from ghstack:

Add fake quantize operator that works in backward pass #40532 Add fake quantize operator that works in backward pass

Differential Revision: D22217029

[ghstack-poisoned]

ghstack-source-id: dae1f4e Pull Request resolved: #40532

dr-ci · 2020-06-24T21:52:31Z

💊 CI failures summary and remediations

As of commit b9993f4 (more details on the Dr. CI page):

8/8 failures possibly* introduced in this PR
- 1/8 non-CircleCI failure(s)

🕵️ 7 new failures recognized by patterns

The following CI failures do not appear to be due to upstream breakages (reran 1 job to discount flakiness):

pytorch_linux_xenial_py3_6_gcc5_4_ge_config_simple_test (1/7)

Step: "Run tests" (full log | diagnosis details | 🔁 rerun) <confirmed not flaky by 2 failures>

Jul 29 22:04:01 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function \'int main()\':\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected \';\' before \'}\' token\n int main() { return 0 }\n                       ^\n" }

Jul 29 22:04:01 Traceback (most recent call last): 
Jul 29 22:04:01   File "test/run_test.py", line 752, in <module> 
Jul 29 22:04:01     main() 
Jul 29 22:04:01   File "test/run_test.py", line 741, in main 
Jul 29 22:04:01     raise RuntimeError(err) 
Jul 29 22:04:01 RuntimeError: test_type_hints failed! 
Jul 29 22:04:01 + cleanup 
Jul 29 22:04:01 + retcode=1 
Jul 29 22:04:01 + set +x 
Jul 29 22:04:01 =================== sccache compilation log =================== 
Jul 29 22:04:01 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function \'int main()\':\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected \';\' before \'}\' token\n int main() { return 0 }\n                       ^\n" } 
Jul 29 22:04:01  
Jul 29 22:04:01 =========== If your build fails, please take a look at the log above for possible reasons =========== 
Jul 29 22:04:01 Compile requests                 0 
Jul 29 22:04:01 Compile requests executed        0 
Jul 29 22:04:01 Cache hits                       0 
Jul 29 22:04:01 Cache misses                     0 
Jul 29 22:04:01 Cache timeouts                   0 
Jul 29 22:04:01 Cache read errors                0 
Jul 29 22:04:01 Forced recaches                  0 
Jul 29 22:04:01 Cache write errors               0

pytorch_linux_xenial_py3_6_gcc5_4_test (2/7)

Step: "Run tests" (full log | diagnosis details | 🔁 rerun) <confirmed not flaky by 2 failures>

Jul 29 22:06:58 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function \'int main()\':\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected \';\' before \'}\' token\n int main() { return 0 }\n                       ^\n" }

Jul 29 22:06:58 Traceback (most recent call last): 
Jul 29 22:06:58   File "test/run_test.py", line 752, in <module> 
Jul 29 22:06:58     main() 
Jul 29 22:06:58   File "test/run_test.py", line 741, in main 
Jul 29 22:06:58     raise RuntimeError(err) 
Jul 29 22:06:58 RuntimeError: test_type_hints failed! 
Jul 29 22:06:58 =================== sccache compilation log =================== 
Jul 29 22:06:58 + cleanup 
Jul 29 22:06:58 + retcode=1 
Jul 29 22:06:58 + set +x 
Jul 29 22:06:58 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function \'int main()\':\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected \';\' before \'}\' token\n int main() { return 0 }\n                       ^\n" } 
Jul 29 22:06:58  
Jul 29 22:06:58 =========== If your build fails, please take a look at the log above for possible reasons =========== 
Jul 29 22:06:58 Compile requests                 0 
Jul 29 22:06:58 Compile requests executed        0 
Jul 29 22:06:58 Cache hits                       0 
Jul 29 22:06:58 Cache misses                     0 
Jul 29 22:06:58 Cache timeouts                   0 
Jul 29 22:06:58 Cache read errors                0 
Jul 29 22:06:58 Forced recaches                  0 
Jul 29 22:06:58 Cache write errors               0

pytorch_linux_bionic_py3_8_gcc9_test (3/7)

Step: "Run tests" (full log | diagnosis details | 🔁 rerun) <confirmed not flaky by 2 failures>

Jul 29 22:01:16 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function ‘int main()’:\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:22: error: expected ‘;’ before ‘}’ token\n    2 | int main() { return 0 }\n      |                      ^~\n      |                      ;\n" }

Jul 29 22:01:16     raise RuntimeError(err) 
Jul 29 22:01:16 RuntimeError: test_type_hints failed! 
Jul 29 22:01:16  
Jul 29 22:01:16 real	28m22.749s 
Jul 29 22:01:16 user	38m6.077s 
Jul 29 22:01:16 sys	1m20.367s 
Jul 29 22:01:16 + cleanup 
Jul 29 22:01:16 + retcode=1 
Jul 29 22:01:16 + set +x 
Jul 29 22:01:16 =================== sccache compilation log =================== 
Jul 29 22:01:16 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function ‘int main()’:\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:22: error: expected ‘;’ before ‘}’ token\n    2 | int main() { return 0 }\n      |                      ^~\n      |                      ;\n" } 
Jul 29 22:01:16  
Jul 29 22:01:16 =========== If your build fails, please take a look at the log above for possible reasons =========== 
Jul 29 22:01:16 Compile requests                 65 
Jul 29 22:01:16 Compile requests executed        35 
Jul 29 22:01:16 Cache hits                       27 
Jul 29 22:01:16 Cache misses                      7 
Jul 29 22:01:16 Cache timeouts                    0 
Jul 29 22:01:16 Cache read errors                 0 
Jul 29 22:01:16 Forced recaches                   0 
Jul 29 22:01:16 Cache write errors                0

pytorch_linux_xenial_py3_clang5_asan_test2 (4/7)

Step: "Run tests" (full log | diagnosis details | 🔁 rerun) <confirmed not flaky by 2 failures>

Jul 29 21:30:06 SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /var/lib/jenkins/workspace/aten/src/ATen/Utils.cpp:11:3 in

Jul 29 21:30:06     #7 0x55bdf8f0f7eb in PyEval_EvalCode /tmp/build/80754af9/python_1588903631989/work/Python/ceval.c:731 
Jul 29 21:30:06     #8 0x55bdf8f8fe73 in run_mod /tmp/build/80754af9/python_1588903631989/work/Python/pythonrun.c:1025 
Jul 29 21:30:06     #9 0x55bdf8f8ff0c in PyRun_StringFlags /tmp/build/80754af9/python_1588903631989/work/Python/pythonrun.c:949 
Jul 29 21:30:06     #10 0x55bdf8f8ff6e in PyRun_SimpleStringFlags /tmp/build/80754af9/python_1588903631989/work/Python/pythonrun.c:445 
Jul 29 21:30:06     #11 0x55bdf8f93d72 in run_command /tmp/build/80754af9/python_1588903631989/work/Modules/main.c:301 
Jul 29 21:30:06     #12 0x55bdf8f93d72 in Py_Main /tmp/build/80754af9/python_1588903631989/work/Modules/main.c:749 
Jul 29 21:30:06     #13 0x55bdf8e5df2d in main /tmp/build/80754af9/python_1588903631989/work/Programs/python.c:69 
Jul 29 21:30:06     #14 0x7f2559a2483f in __libc_start_main /build/glibc-e6zv40/glibc-2.23/csu/../csu/libc-start.c:291 
Jul 29 21:30:06     #15 0x55bdf8f3d27e in _start /home/rdonnelly/mc/conda-bld/compilers_linux-64_1534865402226/work/.build/src/glibc-2.12.2/csu/../sysdeps/x86_64/elf/start.S:103 
Jul 29 21:30:06  
Jul 29 21:30:06 SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior /var/lib/jenkins/workspace/aten/src/ATen/Utils.cpp:11:3 in  
Jul 29 21:30:06 + retcode=1 
Jul 29 21:30:06 + set -e 
Jul 29 21:30:06 + return 1 
Jul 29 21:30:06 + [[ pytorch-linux-xenial-py3-clang5-asan-test2 == *-NO_AVX-* ]] 
Jul 29 21:30:06 + [[ pytorch-linux-xenial-py3-clang5-asan-test2 == *-NO_AVX2-* ]] 
Jul 29 21:30:06 + '[' -n '' ']' 
Jul 29 21:30:06 + [[ pytorch-linux-xenial-py3-clang5-asan-test2 == *tbb* ]] 
Jul 29 21:30:06 + [[ pytorch-linux-xenial-py3-clang5-asan-test2 == *libtorch* ]] 
Jul 29 21:30:06 + [[ pytorch-linux-xenial-py3-clang5-asan-test2 == *-bazel-* ]] 
Jul 29 21:30:06 + cd test

pytorch_linux_bionic_py3_7_conda_test (5/7)

Step: "Run tests" (full log | diagnosis details | 🔁 rerun) <confirmed not flaky by 2 failures>

Jul 29 21:59:08 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function ‘int main()’:\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected ‘;’ before ‘}’ token\n int main() { return 0 }\n                       ^\n" }

Jul 29 21:59:07     raise RuntimeError(err) 
Jul 29 21:59:07 RuntimeError: test_type_hints failed! 
Jul 29 21:59:08  
Jul 29 21:59:08 real	29m6.833s 
Jul 29 21:59:08 user	38m25.963s 
Jul 29 21:59:08 sys	1m19.189s 
Jul 29 21:59:08 + cleanup 
Jul 29 21:59:08 + retcode=1 
Jul 29 21:59:08 + set +x 
Jul 29 21:59:08 =================== sccache compilation log =================== 
Jul 29 21:59:08 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function ‘int main()’:\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected ‘;’ before ‘}’ token\n int main() { return 0 }\n                       ^\n" } 
Jul 29 21:59:08  
Jul 29 21:59:08 =========== If your build fails, please take a look at the log above for possible reasons =========== 
Jul 29 21:59:08 Compile requests                 0 
Jul 29 21:59:08 Compile requests executed        0 
Jul 29 21:59:08 Cache hits                       0 
Jul 29 21:59:08 Cache misses                     0 
Jul 29 21:59:08 Cache timeouts                   0 
Jul 29 21:59:08 Cache read errors                0 
Jul 29 21:59:08 Forced recaches                  0 
Jul 29 21:59:08 Cache write errors               0

pytorch_linux_bionic_py3_6_clang9_test (6/7)

Step: "Run tests" (full log | diagnosis details | 🔁 rerun) <confirmed not flaky by 2 failures>

Jul 29 21:57:41 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function \'int main()\':\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected \';\' before \'}\' token\n int main() { return 0 }\n                       ^\n" }

Jul 29 21:57:41     raise RuntimeError(err) 
Jul 29 21:57:41 RuntimeError: test_type_hints failed! 
Jul 29 21:57:41  
Jul 29 21:57:41 real	28m34.372s 
Jul 29 21:57:41 user	41m11.053s 
Jul 29 21:57:41 sys	2m31.110s 
Jul 29 21:57:41 + cleanup 
Jul 29 21:57:41 + retcode=1 
Jul 29 21:57:41 + set +x 
Jul 29 21:57:41 =================== sccache compilation log =================== 
Jul 29 21:57:41 ERROR:sccache::server: Compilation failed: Output { status: ExitStatus(ExitStatus(256)), stdout: "", stderr: "/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp: In function \'int main()\':\n/var/lib/jenkins/.cache/torch_extensions/test_compilation_error_formatting/main.cpp:2:23: error: expected \';\' before \'}\' token\n int main() { return 0 }\n                       ^\n" } 
Jul 29 21:57:41  
Jul 29 21:57:41 =========== If your build fails, please take a look at the log above for possible reasons =========== 
Jul 29 21:57:41 Compile requests                 65 
Jul 29 21:57:41 Compile requests executed        35 
Jul 29 21:57:41 Cache hits                       27 
Jul 29 21:57:41 Cache misses                      7 
Jul 29 21:57:41 Cache timeouts                    0 
Jul 29 21:57:41 Cache read errors                 0 
Jul 29 21:57:41 Forced recaches                   0 
Jul 29 21:57:41 Cache write errors                0

pytorch_linux_xenial_cuda10_2_cudnn7_py3_gcc7_test (7/7)

Step: "Run tests" (full log | diagnosis details | 🔁 rerun) <confirmed not flaky by 2 failures>

Jul 29 22:23:02 ConnectionResetError: [Errno 104] Connection reset by peer

Jul 29 22:23:02   File "/opt/conda/lib/python3.6/multiprocessing/connection.py", line 494, in Client 
Jul 29 22:23:02     deliver_challenge(c, authkey) 
Jul 29 22:23:02   File "/opt/conda/lib/python3.6/multiprocessing/connection.py", line 722, in deliver_challenge 
Jul 29 22:23:02     response = connection.recv_bytes(256)        # reject large message 
Jul 29 22:23:02   File "/opt/conda/lib/python3.6/multiprocessing/connection.py", line 216, in recv_bytes 
Jul 29 22:23:02     buf = self._recv_bytes(maxlength) 
Jul 29 22:23:02   File "/opt/conda/lib/python3.6/multiprocessing/connection.py", line 407, in _recv_bytes 
Jul 29 22:23:02     buf = self._recv(4) 
Jul 29 22:23:02   File "/opt/conda/lib/python3.6/multiprocessing/connection.py", line 379, in _recv 
Jul 29 22:23:02     chunk = read(handle, remaining) 
Jul 29 22:23:02 ConnectionResetError: [Errno 104] Connection reset by peer 
Jul 29 22:23:02  
Jul 29 22:23:02 Process ErrorTrackingProcess-150: 
Jul 29 22:23:02 Traceback (most recent call last): 
Jul 29 22:23:02   File "/opt/conda/lib/python3.6/multiprocessing/process.py", line 258, in _bootstrap 
Jul 29 22:23:02     self.run() 
Jul 29 22:23:02   File "/var/lib/jenkins/workspace/test/test_dataloader.py", line 361, in run 
Jul 29 22:23:02     super(ErrorTrackingProcess, self).run() 
Jul 29 22:23:02   File "/opt/conda/lib/python3.6/multiprocessing/process.py", line 93, in run 
Jul 29 22:23:02     self._target(*self._args, **self._kwargs) 
Jul 29 22:23:02   File "/var/lib/jenkins/workspace/test/test_dataloader.py", line 629, in _test_proper_exit

ci.pytorch.org: 1 failed

Failed: pr/pytorch-linux-xenial-rocm3.5.1-py3.6

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This comment has been revised 44 times.

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

ghstack-source-id: 9a8d614 Pull Request resolved: #40532

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

ghstack-source-id: f7c00c9 Pull Request resolved: #40532 Adds unit test for validating correctness ghstack-source-id: f7c00c9 Pull Request resolved: #40715

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

ghstack-source-id: f185ce9 Pull Request resolved: #40532 Adds unit test for validating correctness ghstack-source-id: f185ce9 Pull Request resolved: #40715

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

facebook-github-bot · 2020-08-08T02:18:02Z

@durumu merged this pull request in 48e978b.

mruberry · 2020-08-08T06:00:20Z

Unlanding. This broke multiple OSS CI builds. Example failure:

Aug 08 01:52:40 FAIL [52.052s]: test_run_mypy (__main__.TestTypeHints)
Aug 08 01:52:40 Runs mypy over all files specified in mypy.ini
Aug 08 01:52:40 ----------------------------------------------------------------------
Aug 08 01:52:40 Traceback (most recent call last):
Aug 08 01:52:40   File "test_type_hints.py", line 218, in test_run_mypy
Aug 08 01:52:40     self.fail("mypy failed: {}".format(stdout))
Aug 08 01:52:40 AssertionError: mypy failed: torch/quantization/qconfig.py:128: error: Module has no attribute "per_tensor_symmetric"  [attr-defined]
Aug 08 01:52:40 Found 1 error in 1 file (checked 1037 source files)
Aug 08 01:52:40 
Aug 08 01:52:40 
Aug 08 01:52:40 ----------------------------------------------------------------------
Aug 08 01:52:40 Ran 4 tests in 85.186s
Aug 08 01:52:40 
Aug 08 01:52:40 FAILED (failures=1)

ghstack-source-id: 331009d Pull Request resolved: pytorch/pytorch#40532 Adds unit test for validating correctness ghstack-source-id: 331009d Pull Request resolved: pytorch/pytorch#40715

Add fake quantize operator that works in backward pass

918437e

[ghstack-poisoned]

durumu added a commit that referenced this pull request Jun 24, 2020

Add fake quantize operator that works in backward pass

cdf92ea

ghstack-source-id: dae1f4e Pull Request resolved: #40532

Update on "Add fake quantize operator that works in backward pass"

bbf7502

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

durumu added a commit that referenced this pull request Jun 26, 2020

Add fake quantize operator that works in backward pass

cc85fdb

ghstack-source-id: 9a8d614 Pull Request resolved: #40532

This was referenced Jun 29, 2020

Adds unit test for validating correctness #40715

Closed

Add CUDA support for _choose_qparams_per_tensor #40787

Closed

Update on "Add fake quantize operator that works in backward pass"

86cbf4c

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

durumu added a commit that referenced this pull request Jul 14, 2020

Add fake quantize operator that works in backward pass

366cebf

ghstack-source-id: f7c00c9 Pull Request resolved: #40532 Adds unit test for validating correctness ghstack-source-id: f7c00c9 Pull Request resolved: #40715

Update on "Add fake quantize operator that works in backward pass"

e100070

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

durumu added a commit that referenced this pull request Jul 21, 2020

Add fake quantize operator that works in backward pass

89cf777

ghstack-source-id: f185ce9 Pull Request resolved: #40532 Adds unit test for validating correctness ghstack-source-id: f185ce9 Pull Request resolved: #40715

Update on "Add fake quantize operator that works in backward pass"

7820acb

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

durumu added 2 commits July 21, 2020 16:25

Update on "Add fake quantize operator that works in backward pass"

cf29005

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

Update on "Add fake quantize operator that works in backward pass"

b9993f4

Differential Revision: [D22217029](https://our.internmc.facebook.com/intern/diff/D22217029) [ghstack-poisoned]

pytorchbot added the open source label Aug 7, 2020

facebook-github-bot closed this in 48e978b Aug 8, 2020

facebook-github-bot added the merged label Aug 8, 2020

facebook-github-bot deleted the gh/durumu/6/head branch August 11, 2020 14:16

mruberry added the Merged label Oct 28, 2020

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💊 CI failures summary and remediations

🕵️ 7 new failures recognized by patterns

pytorch_linux_xenial_py3_6_gcc5_4_ge_config_simple_test (1/7)

pytorch_linux_xenial_py3_6_gcc5_4_test (2/7)

pytorch_linux_bionic_py3_8_gcc9_test (3/7)

pytorch_linux_xenial_py3_clang5_asan_test2 (4/7)

pytorch_linux_bionic_py3_7_conda_test (5/7)

pytorch_linux_bionic_py3_6_clang9_test (6/7)

pytorch_linux_xenial_cuda10_2_cudnn7_py3_gcc7_test (7/7)

ci.pytorch.org: 1 failed

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durumu commented Jun 24, 2020 •

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