GitLab

* test

* profile

* opt

* Some fix

* upd

* upd

* Add multigpu training support for graphsage unsupervised

* Add share neg

* Fix

* Add profile

* turn on eval

* upd

* Fix

* performance opt
Co-authored-by: Ubuntu <ubuntu@ip-172-31-12-103.ec2.internal>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-14-53.ec2.internal>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-19-29.ec2.internal>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-2-50.ec2.internal>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-52-181.ec2.internal>
Co-authored-by: Ubuntu <ubuntu@ip-172-31-87-240.ec2.internal>