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Feb 22, 2013
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update otherprotocols.md to reflect updates to hdph #2

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26 changes: 20 additions & 6 deletions wiki/otherprotocols.md
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Expand Up @@ -10,12 +10,26 @@ If you are using `Network.Transport` in your application, or if you are writing

### HdpH

**H**askell **D**istributed **P**arallel **H**askell is a shallowly embedded parallel extension of Haskell that supports high-level semi-explicit parallelism. HdpH has a distributed memory model, that manages computations on more than one multicore node. In addition _high-level semi-explicit parallelism_ is supported by providing `spark` for implicit task placement, alleviating the job of dynamic load management to HdpH. Explicit task placement is supported with the `pushTo` primitive. Lastly, HdpH supports the node <-> node transfer of polymorphic closures. This enables the definition of both evaluation strategies and algorithmic skeletons by using a small set of polymorphic coordination primitives.

Efforts to adopt these new transport abstractions into HdpH are a work-in-progress, and early testing is showing positive performance results. When this work is complete, the upstream HdpH repository will be updated.

* Paper presented at IFL 2011 [Implementing a High-level Distributed-Memory Parallel Haskell in Haskell](http://www.macs.hw.ac.uk/~pm175/papers/Maier_Trinder_IFL2011_XT.pdf)
* HdpH source code [HdpH GitHub repository](https://github.com/PatrickMaier/HdpH)
**H**askell **D**istributed **P**arallel **H**askell is a shallowly
embedded parallel extension of Haskell that supports high-level
semi-explicit parallelism. HdpH has a distributed memory model, that
manages computations on more than one multicore node. In addition
_high-level semi-explicit parallelism_ is supported by providing
`spark` for implicit task placement, alleviating the job of dynamic
load management to HdpH. Explicit task placement is supported with
the `pushTo` primitive. Lastly, HdpH supports the node <-> node
transfer of polymorphic closures. This enables the definition of
both evaluation strategies and algorithmic skeletons by using a
small set of polymorphic coordination primitives.

The communication layer in HdpH adopts the `Network.Transport.TCP`
realization of the network-transport API. The HdpH implementation is
on hackage and is open source on GitHub.

* IFL2011 paper: [Implementing a High-level Distributed-Memory Parallel Haskell in Haskell](http://www.macs.hw.ac.uk/~pm175/papers/Maier_Trinder_IFL2011_XT.pdf)
* SAC2013 paper: [Reliable Scalable Symbolic Computation: The Design of SymGridPar2](http://www.macs.hw.ac.uk/~rs46/papers/sac2013/Maier_Stewart_Trinder_SAC2013.pdf)
* Hackage: [http://hackage.haskell.org/package/hdph](http://hackage.haskell.org/package/hdph)
* Source code [https://github.com/PatrickMaier/HdpH](https://github.com/PatrickMaier/HdpH)

# Protocol Implementations

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