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From Ufuk Celebi <...@apache.org>
Subject Re: Parameters to Control Intra-node Parallelism
Date Thu, 30 Jun 2016 09:03:21 GMT
On Thu, Jun 30, 2016 at 1:44 AM, Saliya Ekanayake <esaliya@gmail.com> wrote:
> 1. What parameters are available to control parallelism within a node?

Task Manager processing slots:
https://ci.apache.org/projects/flink/flink-docs-release-1.0/setup/config.html#configuring-taskmanager-processing-slots

> 2. Does Flink support shared memory-based messaging within a node (without
> doing TCP calls)?

Yes, local exchanges happen via memory and not TCP, for example if you
have a map-reduce, map subtask 1 and reduce subtask 1 are likely to
exchange data locally.

> 3. Is there support for Infiniband interconnect?

No, not that I'm aware of.

– Ufuk

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