文件历史

2070 次代码提交

作者 SHA1 备注 提交日期
Chao Ma b89dcce16c [RPC] Refactoring networking APIs (#496)
* Refactoring network API

* update demo

* update

* update demo

* update demo

* add num_sender

* update

* fix lint

* fix lint

* fix lint

* update
2019-04-16 16:33:29 +08:00
VoVAllen c69dbbb736 [Bug Fix] Fix TUDataset Processing bug (#489)
* add graph classification dataset

* add node label

* add TUDataset

* Modify to consistent with Qi Huang's implementation

* add docs

* Add docs

* Fix change of environment variable

* Update tu.py

* Update tu.py

* Fix error when add node with np.int64

* Fix processing bug
2019-04-11 19:30:50 +08:00
VoVAllen 00fc680aae [Dataset] Add TUDataset (#473)
* add graph classification dataset

* add node label

* add TUDataset

* Modify to consistent with Qi Huang's implementation

* add docs

* Add docs

* Fix change of environment variable

* Update tu.py

* Update tu.py

* Fix error when add node with np.int64
2019-04-10 09:37:53 -04:00
Da Zheng bfdd1eaa44 [Feature] Create shared memory graph store. (#468)
* accelerate gcn_ns.

* add timing.

* run infer with whole graph.

* distributed gcn_ns.

* reconstruct gcn_ns.

* minor fix.

* change graphsage_cv for numa.

* fix #OMP threads.

* accelerate graphsage_cv.

* fix a weird bug.

* add profiler in graphsage_cv.

* accelerate graphsage_cv.

manually aggregate neighbors' embeddings with pull.

* load csr directly in gcn_ns_sc.

* parallel sort for graph index.

* Revert "parallel sort for graph index."

This reverts commit 86fe2c7117fe5e56b0d481b39849c258b166945b.

* run gcn_ns_sc on GPUs.

* acc gcn_cv_sc.

* change gcn_cv for numa.

* fix gcn_cv to use numa and gpu.

* improve graphsage_cv to use numa and gpu.

* improve gcn_ns.

* improve graphsage_cv.

* init shared memory graph store.

* fix.

* enable init ndata.

* improve tests.

* add bidirectional communication.

* link to rt.

* fix compilation error.

* fix shared memory init.

* use MessageQueue for inter-process communication.

* reconstruct immutable graph csr.

* fix gcn.

* load csr to shared memory.

* fix minor bugs.

* add comments.

* refactor SharedMemory.

* fix bugs in ImmutableGraph.

* create CSR graph from shared memory.

* add more test for loading a csr graph.

* terminate graph store properly.

* allow initializing ndata in the graph store server.

* use RPC for inter-process communication.

* a script for loading a graph.

* allow customizing port.

* list all ndata and edata.

* support dtype.

* reorganize SharedMemoryGraphStore.

* fix ndata shape.

* reconstruct gcn_ns.

* print info.

* set omp in gcn_ns.

* reset sampling examples.

* fix lint.

* fix lint.

* reset gcn.

* disable shared memory in windows.

* fix.

* fix.

* reset changes.

* revert nodeflow changes.

* fix cmake.

* fix test.

* fix test.

* fix test.

* fix test.

* add comments.

* fix test.

* move vector out.

* fix lint.

* fix lint.

* move SharedMemory.

* update cmake.

* update comment.

* fix comments.

* Revert "update cmake."

This reverts commit 592445e37077f70a6e3f2e5245f9a3d086b04f3b.

* update cmake.

* add comments.

* rename.

* change the comment.

* fix a bug.

* rename.

* add comments.

* add comments.

* add init_edata.

* rewrite memory alloc.

* move vector to CSR.

* fix.

* init data.

* Revert "init data."

This reverts commit 2b217b9553911b7dd84a9f1d9b68430b5aa18e23.

* init data.

* init new columns correctly.
2019-04-08 12:09:02 -07:00
Chao Ma 8058f1c579 [Fix] Update inner API of distributed sampler (#478)
* update inner API of distributed sampler

* update
2019-04-05 10:00:36 +08:00
Chao Ma da3ab84c3c Add demo for distributed sampler (#474)
* add C++ rpc infrastructure and distributed sampler

* update

* update lint

* update lint

* update lint

* update

* update

* update

* updare

* update

* update

* update

* update serialize and unittest

* update serialize

* lint

* update

* update

* update

* update

* update

* update

* update unittest

* put Finalize() to __del__

* update unittest

* update

* delete buffer in Finalize

* update unittest

* update unittest

* update unittest

* update unittest

* update

* update

* fix small bug

* windows socket impl

* update API

* fix bug in serialize

* fix bug in serialzie

* set parent graph

* update

* update

* update

* update

* update

* update

* fix lint

* fix lint

* fix

* fix windows compilation error

* fix windows error

* change API to lower-case

* update test

* fix typo

* update

* add SamplerPool

* add SamplerPool

* update

* update test

* update

* update

* update

* update

* add example

* update

* update

* add distributed sampler demo

* add index

* update demo of distributed sampler

* fix lower-case

* print subg index

* update README.md

* update

* remove --gpu args
2019-04-03 16:09:59 -07:00
Chao Ma 5d494c6207 [RPC] add C++ RPC infrastructure and distributed sampler (#465)
* add C++ rpc infrastructure and distributed sampler

* update

* update lint

* update lint

* update lint

* update

* update

* update

* updare

* update

* update

* update

* update serialize and unittest

* update serialize

* lint

* update

* update

* update

* update

* update

* update

* update unittest

* put Finalize() to __del__

* update unittest

* update

* delete buffer in Finalize

* update unittest

* update unittest

* update unittest

* update unittest

* update

* update

* fix small bug

* windows socket impl

* update API

* fix bug in serialize

* fix bug in serialzie

* set parent graph

* update

* update

* update

* update

* update

* update

* fix lint

* fix lint

* fix

* fix windows compilation error

* fix windows error

* change API to lower-case

* update test

* fix typo

* update

* add SamplerPool

* add SamplerPool

* update

* update test

* update

* update

* update

* update

* add example

* update

* update
2019-03-29 16:48:45 +08:00
Quan (Andy) Gan 6066fee935 [Model][Feature] PinSage & Random Walk with Restart (#453)
* random walk traces generation

* remove outdated comments

* oops put in the wrong place

* explicit inline

* moving rand_r to util

* pinsage-like model on movielens

* the code runs now

* support cuda

* using readonly graph

* moving random walk to public function

* per-thread seed and openmp support

* pinsage-like model on movielens

* the code runs now

* support cuda

* using readonly graph

* using C random walk

* removing profile decorators

* param initialization

* no grad

* leaky relu fixes everything

* train and save

* WIP

* WIP

* WIP

* seems to work

* evaluation output

* swapping order of val/test and train

* debug

* hyperparam tuning

* prior/training dataset split changes

* random walk reorg

* random walk with restart

* signed comparison fix

* migrating random walk to nodeflow

* Revert "migrating random walk to nodeflow"

This reverts commit f2565347cced7c912a58a529b257c033d9f375b7.

* add README and remove dataset

* new endpoint

* lint

* lint x2

* oops forgot test

* including bpr - better for baseline

* addressing fixes

* throwing random walks out from SamplerOp class

* forgot to move RandomWalk; why did this even work?

* removing legacy garbage

* add todo

* address comments

* stupid bug fix

* call ndarrayvector converter to handle traces
2019-03-29 13:01:18 +08:00
Quan (Andy) Gan 341dbea0a1 [Bug] Fix unused prefetch switch for NeighborSampler and LayerSampler (#457)
* forgot prefetch switch

* yet another stupid bug
2019-03-19 14:57:10 +08:00
Minjie Wang 33b9c38389 [Bugfix] fix bug in pickling (#456)
* fix bug in pickling

* fix lint
2019-03-18 23:48:20 -04:00
Lingfan Yu 6f603bbf8f [BugFix] Fix performance bug in EdgeSoftmax (#452)
* fix performance bug in EdgeSoftmax

* minor
2019-03-18 16:22:38 -04:00
Quan (Andy) Gan 681e5217dd [Refactor] Sampler code refactor (#454)
* refactored sampler code

* docstring

* fix tutorial
2019-03-18 10:41:35 -04:00
Lingfan Yu eb1acecd0d [BugFix] Handle case when calling send with builtin message function (#449)
* fix send with builtin bug

* test cases

* remove todo comment
2019-03-13 14:49:50 -04:00
Zihao Ye d1d580ecc1 [feature & bugfix] adjacency_matrix_scipy, wrong order of edges in immutable graph. (#437)
* fix rgcn tutorial

* small fix

* upd

* findedge/s

* upd

* upd

* upd

* upd

* add test

* remove redundancy

* upd

* upd

* upd

* upd

* add edge_subgraph

* explicit cast

* add test immutable subg

* reformat

* reformat

* fix bug

* upd

* hotfix

* subgraph docs

* fix adj mat

* fix edges() order

* add test

* revert

* upd

* fix

* upd
2019-03-12 23:57:13 -04:00
mc-robinson 13272628b5 [Doc] added index [0] to torch.max (#443) 2019-03-08 18:29:16 -05:00
Minjie Wang 2ade0ef96d [Hotfix] fix cython bug (#442)
* fix cython bug

* fix

* fix
2019-03-08 17:07:17 -05:00
Minjie Wang cd4f0a2bfc [Release] update version (#440)
* update version

* update news
2019-03-08 11:12:16 -05:00
Da Zheng 8651be54c2 [Perf] Accelerate block_compute when all nodes are invoked. (#434)
* refactor.

* accelerate update_all in nodeflow.

* fix.

* refactor.

* fix lint.

* fix lint.

* reorganize.

* reorg.

* remove.

* add doc.

* impl block_incidence_matrix

* fix lint.

* fix.

* simple fix.

* fix test.

* fix interface.

* fix eid.

* fix comments.
2019-03-07 13:39:39 -08:00
Minjie Wang ca2a7e1ca1 [Refactor] Nodeflow, sampling, CAPI (#430)
* enable cython

* add helper function and data structure for void_p vector return

* move sampler from graph index to contrib.sampling

* WIP

* WIP

* refactor layer sampling

* pass tests

* fix lint

* fix graphsage

* remove comments

* pickle test

* fix comments

* update dev guide for cython build
2019-03-05 14:07:22 -05:00
Lingfan Yu d3c24cc25b [BugFix] Fix bug in RGCN data processing and use index_select to improve speed (#429)
* use index_select instead of __getitem__

* fix bug in dataset processing

* fix edge_type shape bug

* comments
2019-03-04 10:52:21 -05:00
GaiYu0 fb4246e564 [Feature]Uniform layer-wise sampler (#416)
* migrate to node-flow

* uniform layer sampler test cases

* more test cases

* documentations

* fix lint errors

* fix lint errors

* fix lint errors

* iota

* add asnumpy

* requested changes

* fix indptr error

* fix lint errors

* requested changes & fix lint errors

* fix lint errors

* fix LayerSampler unit test
2019-03-02 16:37:18 -08:00
Minjie Wang a88f351174 [Doc] update doc string (#426) 2019-03-02 14:00:52 -05:00
Lingfan Yu 3cc32a9775 [Feature] Reduce messages with scatter_add in PyTorch (#427)
* implement pytorch spmm with gather and scatter add

* fix

* replace torch take with index_select

* comments

* comment about pytorch __getitem__ operator pitfall

* typo
2019-03-01 22:51:51 -05:00
Minjie Wang fe44ffe5dc [Doc] fix equation in nn.conv (#425) 2019-03-01 15:56:08 -05:00
Da Zheng bea07b41b3 [Sampler] fix the API of neighbor sampler. (#407)
* don't return aux_info.

* fix sampler test.

* fix sse.

* fix.

* add comment.
2019-02-28 13:45:21 -08:00
Ziyue Huang 7e30382e4f [Model][MXNet] neighbor sampling & skip connection & control variate & graphsage (#322)
* neighbor sampling draft

* val/test acc

* control variate draft

* control variate

* update

* fix new_history

* maintain aggregated history while updating new history

* preprocess the first layer, change push to pull

* update

* fix subg_degree

* nodeflow

* clear

* readme

* doc and unittest for self loop

* address comments

* rename

* update

* fix

* Update node_flow.py

* Update node_flow.py
2019-02-28 13:29:51 -08:00
Zihao Ye 724aa0caf0 [Feature] FindEdge/FindEdges for Immutable Graph (#404)
* fix rgcn tutorial

* small fix

* upd

* findedge/s

* upd

* upd

* upd

* upd

* add test

* remove redundancy

* upd

* upd

* upd

* upd

* add edge_subgraph

* explicit cast

* add test immutable subg

* reformat

* reformat

* fix bug

* upd
2019-02-27 15:32:32 +08:00
Quan (Andy) Gan c07ae34a99 [Bugfix] removing non-determinism in data loading (#413)
[Bugfix] Removing non-determinism in data loading
2019-02-26 01:24:48 -05:00
Minjie Wang 565f0c88fc [WIP] [NN] Refactor NN package (#406)
* refactor graph conv

* docs & tests

* fix lint

* fix lint

* fix lint

* fix lint script

* fix lint

* Update

* Style fix

* Fix style

* Fix style

* Fix gpu case

* Fix for gpu case

* Hotfix edgesoftmax docs

* Handle repeated features

* Add docstring

* Set default arguments

* Remove dropout from nn.conv

* Fix

* add util fn for renaming

* revert gcn_spmv.py

* mx folder

* fix wierd bug

* fix mx

* fix lint
2019-02-25 18:41:21 -05:00
Zihao Ye bfe3e9d64a [Feature] Add switch readonly state interface (#389)
* fix rgcn tutorial

* small fix

* add switch readonly state interface

* remove trailing ws

* fix

* fix

* change signature

* change signature

* remove trailing ws

* upd

* upd interface

* upd

* rm trailing ws

* reformat

* trailing space

* upd
2019-02-20 18:51:56 -05:00
Quan (Andy) Gan 2e1cbd5d68 [Feature] Random walk traces generation (#392)
* random walk traces generation

* remove outdated comments

* oops put in the wrong place

* explicit inline

* moving rand_r to util

* moving random walk to public function

* per-thread seed and openmp support

* type cast styles
2019-02-20 10:41:59 -05:00
Da Zheng f370e628cd [Feature] add NodeFlow API (#361)
* sample layer subgraphs.

* fix.

* fix.

* add layered subgraph.

* fix lint.

* fix.

* fix tutorial.

* fix.

* remove copy_to_parent.

* add num_layers

* move sampling code to sampler.cc

* fix.

* move subgraph construction out.

* Revert "move subgraph construction out."

This reverts commit 24b3d13b0d8ed5f91847ea75a7674ee8f7d45cff.

* change to NodeFlow.

* use NodeFlow in Python.

* use NodeFlowIndex.

* add node_mapping and edge_mapping.

* remove unnecessary code in SSE tutorial.

* Revert "remove unnecessary code in SSE tutorial."

This reverts commit 093f0413d5fa2e63ca5f80c46c80a126a9fb720c.

* fix tutorial.

* move to node_flow.

* update gcn cv updater.

* import NodeFlow.

* update.

* add demo code for vanilla control variate sampler.

* update.

* update.

* add neighbor sampling.

* return flow offsets.

* update node_flow.

* add test.

* fix sampler.

* fix graph index.

* fix a bug in sampler.

* fix map_to_layer_nid and map_to_flow_eid.

* fix apply_flow.

* remove model code.

* implement flow_compute.

* fix a bug.

* reverse the csr physically.

* add mini-batch test.

* add mini batch test.

* update flow_compute.

* add prop_flows

* run on specific nodes.

* test copy

* fix a bug in creating frame in NodeFlow.

* add init gcn_cv_updater.

* fix a minor bug.

* fix gcn_cv_updater.

* fix a bug.

* fix a bug in NodeFlow.

* use new h in gcn_cv_updater.

* add layer_in_degree and layer_out_degree.

* fix gcn_cv_updater for gpu.

* temp fix in NodeFlow for diff context.

* allow enabling/disabling copy back.

* add with-updater option.

* fix a bug in computing degree.

* add with-cv option.

* rename and add comments.

* fix lint complain.

* fix lint.

* avoid assert.

* remove assert.

* fix.

* fix.

* fix.

* fix.

* fix the methods in NodeFlow.

* fix lint.

* update SSE.

* remove gcn_cv_updater.

* correct comments for the schedulers.

* update comment.

* add map_to_nodeflow_nid

* address comment.

* remove duplicated test.

* fix int.

* fix comments.

* fix lint

* fix.

* replace subgraph with NodeFlow.

* move view.

* address comments.

* fix lint.

* fix lint.

* remove static_cast.

* fix docstring.

* fix comments.

* break SampleSubgraph.

* move neighbor sampling to sampler.cc

* fix comments.

* rename.

* split neighbor_list.

* address comments.

* fix.

* remove TODO.
2019-02-19 15:49:28 -08:00
Quan (Andy) Gan 220a1e68fb [BUG] Fixing bug in pickling readonly graphs (#397)
* fixing bug in pickling readonly graphs

* multigraph test coverage

* fixing lint (??????)

* another lint

* is_readonly interface
2019-02-19 00:14:11 -05:00
Hao Zhang 788d8dd4ad [Model]PPI dataloader and inductive learning script. (#395)
* Create ppi.py

* Create train_ppi.py

* Update train_ppi.py

* Update train_ppi.py

* Create gat.py

* Update train.py

* Update train_ppi.py

* Update ppi.py

* Update train_ppi.py

* Update ppi.py

* Update train_ppi.py

* Update train_ppi.py

* Update ppi.py

* Update train_ppi.py

* update docs and readme
2019-02-17 16:41:30 -05:00
Lingfan Yu 40afdf7cd5 [Bugfix] Remove unnecessary assert in from_scipy_sparse_matrix (#391) 2019-02-13 17:45:22 -05:00
Ziyue Huang 51293a3273 [Data] reddit data loader (#372)
* reddit data loader

* upload to S3

* update

* add self loop

* address comments

* fi
2019-02-08 10:53:39 -08:00
VoVAllen 5b9147c464 [Feature] Edge Group Apply API (#358)
* add rtfd

* rrr

* update

* change env

* temp fix

* update

* fix

* fix

* add

* conf

* Move file_pattern from Makefile to conf.py

* remove yml

* fix

* fix

* fix

* fix

* remove yml

* remove yml

* add doc docker

* add dgl install script

* change name

* change dockerfile

* fix

* name

* add

* fix

* fix

* fix

* fix

* fix docker

* delete sphinx.py for doc-build backend

* Add softmax to test backend

* Add group apply function and tests

* Delete unnecessary file

* Update comments and test

* Fix lint

* remove unused bucketing code

* group apply edge bucketing code

* gen degree bucket schedule for group apply edge

* schedule and graph code

* fix compiling

* fix

* fix lint

* naming

* harder test case

* fix comments

* more comments

* tweak function name
2019-02-03 11:14:52 -05:00
Mufei Li 3cbfc25a32 [Tutorial] Batched Graph Classification (#360)
* batched_graph_classification

* Fix

* Fix

* update tutorial with new dataset

* Final

* Fix doc for dataset

* small fix
2019-01-25 15:13:52 -05:00
Minjie Wang abf12fc757 [Data] Synthetic dataset for graph classificaiton (#364)
* minigc dataset

* more comments

* sphinx
2019-01-25 10:47:47 -05:00
Totti97 525bb61245 [Doc] Fix a typo (#365) 2019-01-25 10:41:37 -05:00
Da Zheng 929742b588 [Feature] Reimplement Immutable graph index in DGL (#342)
* init.

* it's compiled.

* add immutable graph constructor.

* add immutable graph API.

* fix.

* impl get adjacency matrix.

* fix.

* fix graph_index from scipy matrix.

* add neighbor sampling.

* remap vertex ids.

* fix.

* move sampler test.

* fix tests.

* add comments

* remove mxnet-specific immutable graph.

* fix.

* fix lint.

* fix.

* try to fix windows compile error.

* fix.

* fix.

* add test.

* unify Graph and ImmutableGraph.

* fix bugs.

* fix compile.

* move immutable graph.

* fix.

* remove print.

* fix lint.

* fix

* fix lint.

* fix lint.

* fix test.

* fix comments.

* merge GraphIndex and ImmutableGraphIndex.

* temp fix.

* impl GetAdj.

* fix lint

* fix.

* fix.

* fix.

* fix.

* fix.

* use csr only for readonly graph.

* Revert "use csr only for readonly graph."

This reverts commit 8e24bb033af8504531b22849de5b7567b168e0d5.

* remove code.

* fix.

* fix.

* fix.

* fix.

* fix.

* fix.

* address comments.

* fix for comments.

* fix comments.

* revert.

* move test_graph_index to compute.

* fix.

* fix.

* impl GetAdj for coo.

* fix.

* fix tests.

* address comments.

* address comments.

* fix comment.

* address comments.

* use lambda.

* other comments.

* address comments.

* modify the semantics of edges.

* fix order.

* use DGLIdIter

* fix.

* remove NotImplemented.

* revert some code.
2019-01-17 09:59:53 +08:00
Lingfan Yu ed1948b555 [BugFix] Make program thread-local to support multi-threading (#338)
* make program thread local

* doc string
2019-01-12 22:04:08 -05:00
Minjie Wang ddc2faa547 [Bugfix] Fix gat residual bug (#355)
* fix gat residual bug

* fix the residual addition; output heads; add some shape notations;

* minor

* fix the output head average

* add requests package in requirement
2019-01-12 08:37:01 -05:00
Minjie Wang efae0f97d8 [Model] Improve GAT models (#348)
* two better GAT implementations

* update numbers

* use version switch for spmm

* add missing dropout and output heads
2019-01-11 02:02:06 -05:00
Mufei Li 3a868eb04b [Feature] Max readout and consecutive labeling for networkx (#341)
* Max readout and consecutive labeling

* Delete test_readout.py

* Delete test_basics.py

* Test case and fix

* Recover accidentally removed file

* Fix import order

* Fix test case

* Fix

* Fix

* Fix

* Fix

* Fix

* revert

* Fix

* Fix

* Fix
2019-01-10 12:58:05 -05:00
brett koonce 707334ce85 minor spelling tweaks (#349)
* minor spelling tweaks

* Update CONTRIBUTORS.md
2019-01-10 12:02:31 -05:00
Quan (Andy) Gan e19cd62ecd [Test] Unify tests for different backends (#333)
* test basics

* batched graph & filter, mxnet filter fix

* frame and function; bugfix

* test graph adj and inc matrices

* fixing start = 0 for mxnet

* test index

* inplace update & line graph

* multi send recv

* more tests

* oops

* more tests

* removing old test files; readonly graphs for mxnet still kept

* modifying test scripts

* adding a placeholder for pytorch to reserve directory

* torch 0.4.1 compat fixes

* moving backend out of compute to avoid nose detection

* tests guide

* mx sparse-to-dense/sparse-to-numpy is buggy

* oops

* contribution guide for unit tests

* printing incmat

* printing dlpack

* small push

* typo

* fixing duplicate entries that causes undefined behavior

* move equal comparison to backend
2019-01-05 23:32:33 -05:00
Mufei Li 24bbdb745e [Feature] Reversed Graph and Transform Module (#331)
* reverse a graph

* Reverse a graph

* Fix

* Revert "Fix"

This reverts commit 1728826b4f3a083b76dfc0fdecd2bbf943a971b2.

* Fix

* Fix

* Delete vcs.xml

* Delete Project_Default.xml

* Fix

* Fix

* Fix

* Remove outdated test

* Reorg transform and update reverse (#2)

* Reorg transform and update reverse

* Fix doc and test

* Update test

* Resolve conflict

* CI oriented fix

* Remove outdated import

* Fix import

* Fix import

* define __all__ for wildcard imports

* Fix import

* Address circular imports

* Fix

* Fix test case

* Fix

* Fix

* Remove unused import

* Fix

* Fix

* Fix
2019-01-04 13:51:19 -05:00
Minjie Wang 4bd4d6e348 [Lint] Pylint (#330)
* fix lint for graph_index.py

* pylint for base.py

* pylint for batched_graph.py

* pylint for frame.py; simplify and fix bugs in frame when index is slice type

* pylint for graph.py

* pylint for immutable_graph_index.py

* pylint for init.py

* pylint for rest files in root package

* pylint for _ffi package

* pylint for function package

* pylint for runtime package

* pylint for runtime.ir package

* add pylint to ci

* fix mx tests

* fix lint errors

* fix ci

* fix as requested

* fix lint
2019-01-01 15:15:41 -05:00
Lingfan Yu 2664ed2dff [Bugfix] Fix multiple send recv (#320)
* fix bug: frame append should check itself

* more test case

* fix multi-send-recv bug

* remv msg graph and clean up

* test cases

* more test case

* fix for batchedgraph

* fix bugs: converting from a graph with edges

* fix

* add more operators to utils.Index

* clear frame executor

* change message indicator to a graph level index

* fix test cases

* guard the case that mxnet does not support concat zero shape tensor

* fix bug: avoid convert full slice to numpy

* test multi-send-recv after conversion

* fix as request (partially)

* add dtype, ctx to full_1d

* add slice data to utils.Index

* fix

* more doc string

* fix as requested
2018-12-23 21:35:49 -05:00