congxie1108

Results 2 issues of congxie1108

## Description ## Add GPU-friendly round padding to Pad() Add pre-defined bucket batch sizes to FixedBucketSampler ## Checklist ## ### Essentials ### - [ ] PR's title starts with a...

When the launchers in dmlc-core pass DMLC_NODE_HOST to ps-lite, only IP address is supported. If we use a DNS hostname, zmq_bind will fail.