FAQ: Add note about recovering from OOM

[peterbell10]

Closes #18853

This documents the workaround needed to solve the issues in #18853

[dr-ci]

💊 CircleCI build failures summary and remediations

As of commit 6637049 (more details on the Dr. CI page):

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• 5/5 failures introduced in this PR

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🕵️ 1 new failure recognized by patterns

The following build failures do not appear to be due to upstream breakages:

pytorch_xla_linux_xenial_py3_6_clang7_build (1/1)

Step: "Build" (full log | pattern match details) <confirmed not flaky by 2 failures>

Mar 23 16:53:06 torch_xla/csrc/aten_xla_type_default.cpp:11446:8: error: no matching member function for call to 'impl_unboxedOnlyKernel'

Mar 23 16:53:06       ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
Mar 23 16:53:06 /opt/conda/lib/python3.6/site-packages/torch/include/ATen/core/op_registration/op_registration.h:294:74: note: candidate template ignored: invalid explicitly-specified argument for template parameter 'kernel_func' 
Mar 23 16:53:06     std::enable_if_t<guts::is_function_type<FuncType>::value, Options&&> impl_unboxedOnlyKernel(DispatchKey dispatch_key) && { 
Mar 23 16:53:06                                                                          ^ 
Mar 23 16:53:06 torch_xla/csrc/aten_xla_type_default.cpp:11185:8: error: no matching member function for call to 'impl_unboxedOnlyKernel' 
Mar 23 16:53:06       .impl_unboxedOnlyKernel<at::Tensor &(at::Tensor &, double, double, at::Generator *), &AtenXlaType::normal_>(at::DispatchKey::XLATensorId) 
Mar 23 16:53:06       ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
Mar 23 16:53:06 /opt/conda/lib/python3.6/site-packages/torch/include/ATen/core/op_registration/op_registration.h:294:74: note: candidate template ignored: invalid explicitly-specified argument for template parameter 'kernel_func' 
Mar 23 16:53:06     std::enable_if_t<guts::is_function_type<FuncType>::value, Options&&> impl_unboxedOnlyKernel(DispatchKey dispatch_key) && { 
Mar 23 16:53:06                                                                          ^ 
Mar 23 16:53:06 torch_xla/csrc/aten_xla_type_default.cpp:11446:8: error: no matching member function for call to 'impl_unboxedOnlyKernel' 
Mar 23 16:53:06       .impl_unboxedOnlyKernel<at::Tensor(const at::Tensor &, const at::Tensor &, at::Scalar, at::Scalar, bool, at::Generator *), &AtenXlaType::rrelu_with_noise>(at::DispatchKey::XLATensorId) 
Mar 23 16:53:06       ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
Mar 23 16:53:06 /opt/conda/lib/python3.6/site-packages/torch/include/ATen/core/op_registration/op_registration.h:294:74: note: candidate template ignored: invalid explicitly-specified argument for template parameter 'kernel_func' 
Mar 23 16:53:06     std::enable_if_t<guts::is_function_type<FuncType>::value, Options&&> impl_unboxedOnlyKernel(DispatchKey dispatch_key) && { 
Mar 23 16:53:06                                                                          ^ 
ackages/torch/include/torch/csrc/api/include -I/opt/conda/lib/python3.6/site-packages/torch/include/TH -I/opt/conda/lib/python3.6/site-packages/torch/include/THC -I/opt/conda/include/python3.6m -c torch_xla/csrc/batch_norm.cpp -o build/temp.linux-x86_64-3.6/torch_xla/csrc/batch_norm.o -std=c++14 -Wno-sign-compare -Wno-deprecated-declarations -Wno-return-type -Wno-macro-redefined -Wno-return-std-move -DNDEBUG -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=_XLAC -D_GLIBCXX_USE_CXX11_ABI=1 
Mar 23 16:53:13 11 errors generated. 
torch/include/torch/csrc/api/include -I/opt/conda/lib/python3.6/site-packages/torch/include/TH -I/opt/conda/lib/python3.6/site-packages/torch/include/THC -I/opt/conda/include/python3.6m -c torch_xla/csrc/layout_manager.cpp -o build/temp.linux-x86_64-3.6/torch_xla/csrc/layout_manager.o -std=c++14 -Wno-sign-compare -Wno-deprecated-declarations -Wno-return-type -Wno-macro-redefined -Wno-return-std-move -DNDEBUG -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=_XLAC -D_GLIBCXX_USE_CXX11_ABI=1 
on3.6/site-packages/torch/include/torch/csrc/api/include -I/opt/conda/lib/python3.6/site-packages/torch/include/TH -I/opt/conda/lib/python3.6/site-packages/torch/include/THC -I/opt/conda/include/python3.6m -c torch_xla/csrc/view.cpp -o build/temp.linux-x86_64-3.6/torch_xla/csrc/view.o -std=c++14 -Wno-sign-compare -Wno-deprecated-declarations -Wno-return-type -Wno-macro-redefined -Wno-return-std-move -DNDEBUG -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=_XLAC -D_GLIBCXX_USE_CXX11_ABI=1 
te-packages/torch/include/torch/csrc/api/include -I/opt/conda/lib/python3.6/site-packages/torch/include/TH -I/opt/conda/lib/python3.6/site-packages/torch/include/THC -I/opt/conda/include/python3.6m -c torch_xla/csrc/nll_loss.cpp -o build/temp.linux-x86_64-3.6/torch_xla/csrc/nll_loss.o -std=c++14 -Wno-sign-compare -Wno-deprecated-declarations -Wno-return-type -Wno-macro-redefined -Wno-return-std-move -DNDEBUG -DTORCH_API_INCLUDE_EXTENSION_H -DTORCH_EXTENSION_NAME=_XLAC -D_GLIBCXX_USE_CXX11_ABI=1 

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4 failures not recognized by patterns:

Job	Step	Status
binary_linux_libtorch_2_7m_cpu_devtoolset7_shared-with-deps_build	Checkout pytorch/builder repo
binary_linux_manywheel_2_7mu_cpu_devtoolset7_build	Checkout pytorch/builder repo
caffe2_onnx_py2_gcc5_ubuntu16_04_build	Build
caffe2_onnx_main_py3_6_clang7_ubuntu16_04_build	Build

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This comment has been revised 2 times.

[facebook-github-bot]

@ezyang is landing this pull request. If you are a Facebook employee, you can view this diff on Phabricator.

[facebook-github-bot]

@ezyang merged this pull request in bd0ef78.