* ssd gluoncv gpu op updated

* ssd gluoncv gpu op updated

* tutorials and testes modified

* tutorials and testes modified

* fix lint

* fix lint

* address comment

* multibox bug fixed

* space line added

* use less threads per block

* use less threads per block

* less threads per block for get valid count

* less threads per block for get valid count

* merge with master

* Revert "less threads per block for get valid count"

This reverts commit 08896cfccc34b0b2a1646d01d01ea4cad73941c4.

* Revert "less threads per block for get valid count"

This reverts commit 08896cfccc34b0b2a1646d01d01ea4cad73941c4.

* typo fixed

* elem length made to a variable

* fix lint error

* fix lint error

* lint fixed

* bug fixed

* bug fixed

* lint fixed

* error fixed

* error fixed

* test ci

* test ci

* seperate argsort to be an independent op

* seperate argsort to be an independent op

* fix lint

* fix lint

* remove unsupported models

* typo fixed

* argsort added to realy

* solve conflicts with master

* fix lint

* fix lint

* test push

* Revert "test push"

This reverts commit 6db00883fab6cc06bddf564c926bb27c874397d8.

* fix lint error

* fix more lint

* cpu test_sort udpated

* debug ci

* nms fixed

* expose argsort to relay frontend

* test ci

* fix lint

* sort register error fixed

* fix nnvm

* nms type fixed

* adaptive pooling added to relay

* Revert "adaptive pooling added to relay"

This reverts commit 1119f1f2c055753e0cc5611627597749134c5c8c.

* fix lint

* expose argsort op

* fix lint

* fix lint

* fix lint

* sort test updated

* sort bug fixed

* nnvm error fixed

* fix argsort default data type returned to be float insteaf of int

* fix lint

* fix lint

* test fixed

* fix valid count

* fix titanx bug

* tutorial add both targets

* titanx error fixed

* try to fix CI old gpu error

* try to solve CI GPU error

* get_valid_count added

* reverse get_valid_count

* get valid count optimized

* address comments

* fix ci error

* remove unessesary block sync

* add back one sync

* address comments

* address more comments

* more comments

* move sort to be indepent algorithm

* typo fixed

* more typos

* comments addressed

* doc updated

* fix pylint

* address final comments

* apache license added

* [HEADER] ASF header dir=include

* [HEADER] ASF Header dir=src

* [HEADER] ASF Header -dir=python

* [HEADER] ASF header dir=topi

* [HEADER] ASF Header dir=nnvm

* [HEADER] ASF Header -dir=tutorials

* [HEADER] ASF Header dir=tests

* [HEADER] ASF Header -dir=docker

* fix whitespace

* [HEADER] ASF Header -dir=jvm

* [HEADER] ASF Header -dir=web

* [HEADER] ASF Header --dir=apps

* [HEADER] ASF Header --dir=vta

* [HEADER] ASF Header -dir=go

* temp

* [HEADER] ASF Header --dir=rust

* [HEADER] Add ASF Header --dir=cmake

* [HEADER] ASF Header --dir=docs

* [HEADER] Header for Jenkinsfile

* [HEADER] ASF Header to toml and md

* [HEADER] ASF Header to gradle

* Finalize rat cleanup

* Fix permission

* Fix java test

* temporary remove nnvm onnx test

Optimize move semantics of NodeEntry reducing copies of shared_ptr which causes atomic contention (#2576)

* [NNVM] Fix check in layout parsing

* add one workload

Windows VS2015 Compile error - 'conversion from 'double' to 'float' requires a narrowing conversion' (#1329)

* add support for subgraphs.

* fix.

* fix.

* Fix compilation error

* Fix compilation error

* add comments.

* update comments.

* Sanity check on subgraphs when creating IndexedGraph

* avoid the overhead of sanity check.

* Stop using non-recursive DFS

* Trigger CI

* trigger CI

* update tvm submodule

* Add count_include_pad support to avg_pool

* rename FInferLayout -> FCorrectLayout

* correct stupid IDE

* update submodule tvm