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https://issues.apache.org/jira/browse/SINGA-131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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wangwei closed SINGA-131.
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Resolution: Fixed
> Implement and optimize hybrid training using both CPU and GPU
> -------------------------------------------------------------
>
> Key: SINGA-131
> URL: https://issues.apache.org/jira/browse/SINGA-131
> Project: Singa
> Issue Type: Improvement
> Reporter: wangwei
> Labels: CPU, GPU, hybrid
> Original Estimate: 336h
> Remaining Estimate: 336h
>
> We discussed with researchers from Stanford on implementing hybrid training
> before
> http://mail-archives.apache.org/mod_mbox/singa-dev/201507.mbox/%3CCAJz0iLsd5iSCqqVU4QHLKzMO2o%2BFt-40kN8RgWkYhDn%3D6Qqqbw%40mail.gmail.com%3E.
> Now with the GPU training supported, we can move on to this feature.
> The distributed training framework is natural for hybrid training with CPU
> and GPU. The first n workers would be assigned with GPU cards (n is the
> number of cards configured by users), and the rest workers would run on CPU.
> Some code may need updates and optimization to consider the memory
> transferring between GPU workers and CPU workers. Most of them is in
> worker.cc, param.cc and stub.cc.
> Automatically Tuning the workload among GPU and CPU could be designed and
> implemented in this ticket or a new ticket.
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