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* [Dist] enable USE_EPOLL in default

* fix build issue on windows

* fix build issue on windows

* fix build issue on windows

* fix build issue on windows

* fix build issue on windows

* fix build issue

Co-authored-by: Xin Yao <xiny@nvidia.com>

* Add uva by default to embedding

* More updates

* Update optimizer

* Add new uva functions

* Expose new pinned memory function

* Add unit tests

* Update formatting

* Fix unit test

* Handle auto UVA case when training is on CPU

* Allow per-embedding decisions for whether to use UVA

* Address spares_optim.py comments

* Remove unused templates

* Update unit test

* Use dgl allocate memory for pinning

* allow automatically unpin

* workaround for d2h copy with a different dtype

* fix linting

* update error message

* update copyright
Co-authored-by: Xin Yao <xiny@nvidia.com>
Co-authored-by: Minjie Wang <wmjlyjemaine@gmail.com>

Co-authored-by: Mufei Li <mufeili1996@gmail.com>
Co-authored-by: Xin Yao <xiny@nvidia.com>

* Remove all torchtext legacy-related APIs

* Remove unused BagOfWordsPretrained class, and fix some typos
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Explicitly unpin tensoradapter allocated arrays

* Undo unrelated change

* Add unit test

* update unit test

* add pinned_by_dgl flag to NDArray::Container

* use dgl.ndarray for holding the pinning status

* update multi-gpu uva inference

* reinterpret cast NDArray::Container* to DLTensor* in MoveAsDLTensor

* update unpin column and examples

* add unit test for unpin column
Co-authored-by: Dominique LaSalle <dlasalle@nvidia.com>
Co-authored-by: nv-dlasalle <63612878+nv-dlasalle@users.noreply.github.com>

* Fix a cub compile error for CUDA 11.5

* Fix comparison of integer expressions of different signedness in coo_sort.cu file

* Fix comparison of integer expressions of different signedness in cuda_compact_graph.cu file

* Remove never referenced variable in spmm.cu

* Fix comparison of integer expressions of different signedness in rowwise_pick.h file

* Fix comparison of integer expressions of different signedness in choice.cc file

* Remove never referenced variable col_data in spat_op_impl_coo.cc

* Remove never referenced variable allowed in global_uniform.cc

* Fix comparison of integer expressions of different signedness in graph.cc

* Fix comparison of integer expressions of different signedness in graph_apis.cc

* Fix the un-used ctx variable in ndarray_partition.cc file for cpu only build

* Fix comparison of integer expressions of different signedness in libra_partition.cc

* Fix comparison of integer expressions of different signedness in graph_op.cc
Co-authored-by: Triston Cao <tristonc@nvidia.com>
Co-authored-by: Quan (Andy) Gan <coin2028@hotmail.com>

* Update citation_graph.py

* Update

* Update

* Update
Co-authored-by: Minjie Wang <wmjlyjemaine@gmail.com>

* fix

* fix

* Update utils.py

* fix unstable sort

* add torch version check

* reformat

* split too long comments

* Update dataloader.py
Co-authored-by: Quan (Andy) Gan <coin2028@hotmail.com>

* Update

* Update

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* [Dist] defer to load node/edge feats

* fix lint

* Update python/dgl/distributed/partition.py
Co-authored-by: Minjie Wang <minjie.wang@nyu.edu>

* Update python/dgl/distributed/partition.py
Co-authored-by: Minjie Wang <minjie.wang@nyu.edu>

* fix lint
Co-authored-by: Minjie Wang <minjie.wang@nyu.edu>

* Update README.md

* fix: ArangoDB hyperlink
Co-authored-by: Minjie Wang <wmjlyjemaine@gmail.com>

* add dist tutorial

* add predictor in dist prediction

* refine after rendering

* change links

* Update 2_link_prediction.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>
Co-authored-by: Quan (Andy) Gan <coin2028@hotmail.com>
Co-authored-by: Rhett Ying <85214957+Rhett-Ying@users.noreply.github.com>
Co-authored-by: Minjie Wang <wmjlyjemaine@gmail.com>

* [Dist] set socket as default backend for RPC

* add tests both for socket and tensorpipe

* * Added functions from dgl.transforms.functional that were missing from the list for documentation in dgl.rst

* * Sorted transform ops list in dgl.rst in alphabetical order
Co-authored-by: Xin Yao <xiny@nvidia.com>

Signed-off-by: Serge Panev <spanev@nvidia.com>
Co-authored-by: Rhett Ying <85214957+Rhett-Ying@users.noreply.github.com>

* Disable non-atomic atomic operations

* Improve error message

* Make error message more friendly

* Fix fail to create_shared_mem_array in ddp spawn train #4110

Fix fail to create_shared_mem_array in ddp spawn train #4110

* [Bugfix] Fix fail to create_shared_mem_array in ddp spawn train #4110

[Bugfix] Fix fail to create_shared_mem_array in ddp spawn train #4110
Replace random.seed() to random_ = random.Random()

* Update pytorch.py
Co-authored-by: Quan (Andy) Gan <coin2028@hotmail.com>

* Add Flickr and Yelp dataset

* Update flickr.py

* update

* Update yelp.py

* Update yelp.py

* update

* Update yelp.py

* Update test_data.py

* Update yelp.py

* update

* Update test_data.py

* Update yelp.py
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* [Dist] master port should be fixed for all trainers

* add tests for tools/launch.py

* add argument reorder=False for citation_graph

* add description of the argument reorder

* add reordered/un_reordered save_path

* add version number postfix
Co-authored-by: Mufei Li <mufeili1996@gmail.com>

* Wrap all CUDA runtime API/CUB calls with macro

* remove the usage of explicit cudaMalloc in favor of AllocWorkspace

* fix typo
Co-authored-by: Israt Nisa <neesha295@gmail.com>

[Bugfix] Fix example case: examples/pytorch/ogb/ogbn-proteins and examples/pytorch/ogb/ogbn-products (#4080)

* [Bugfix] Fix ogbn-gat-proteins/products examples

* Remove unused BatchSampler definition

* Remove comments to ease reading/reviewing

* Remove dataloader wrapper

* [ist] enable time out when fetching msg

* fix lint error

* minor refinements

* improve minor log

* fix dist test

* fix timeout issue in tensorpipe

* [DistTest] add python test of RPC

* remove return

* [DistTest] add basic pipeline for dist test across machines

* move launch remote cmd to separate file

* add test for rpc

* fix function naming rule
Co-authored-by: Minjie Wang <wmjlyjemaine@gmail.com>

* * Added specialization of cublasGemm function for `__half` type, to try to address https://github.com/dmlc/dgl/issues/3988



* * Added USE_FP16 guard

* * Added test cases to test_segment_mm, to test newly-added FP16 specialization of cublasGemm

* * Replaced for loop in test_segment_mm with pytest.mark.parametrize, as recommended
Co-authored-by: Xin Yao <xiny@nvidia.com>

* Update link to correct destination.

* Update 4_rgcn.py

* Update 4_rgcn.py

* Update tutorials/models/1_gnn/4_rgcn.py

* Update tutorials/models/1_gnn/4_rgcn.py

* Update tutorials/models/1_gnn/4_rgcn.py
Co-authored-by: Rhett Ying <85214957+Rhett-Ying@users.noreply.github.com>

* * Added support for common operations on FP16 (`half` or `__half`) for older GPU architectures
* Fixed an issue with previous check for FP16 support

* * Removing FP16 type checks, since they should no longer be needed

* * Fixed AtomicAdd to be atomic for `float` and `double` for old GPU architectures.  Unfortunately, it seems that atomicCAS for unsigned short seems to be unavailable until architecture 70, so half will have to stay non-atomic on old GPUs.

* * Fixed non-atomic version of `AtomicAdd<half>` for older GPUs to return old value instead value of new

Co-authored-by: Xin Yao <xiny@nvidia.com>

Co-authored-by: nv-dlasalle <63612878+nv-dlasalle@users.noreply.github.com>
Co-authored-by: Israt Nisa <neesha295@gmail.com>