[Haskell-cafe] ANNOUNCE: DSTM 0.1.1

Daniel Peebles pumpkingod at gmail.com
Fri Aug 6 11:33:28 EDT 2010


Another interesting direction would be to use Matt Morrow's vaccum
infrastructure to make a neat, almost completely general, serialization
mechanism.

It's not safe, and can traverse any value that doesn't contain functions or
unevaluated thunks, but would be very helpful for sending values like `cycle
[1,2,3]` over the network. He and I were talking about writing such a
library before he disappeared, but it doesn't seem terribly difficult if you
have a good use for it.

Dan

On Fri, Aug 6, 2010 at 11:14 AM, Frank Kupke <frk at informatik.uni-kiel.de>wrote:

> Paul,
> Yes, I use Read and Show to serialize. I thought of switching to Binary
> myself but could not find the time yet ;-) Now, a student here is going to
> work on that. Also, as TCP communication involves a lot of overhead, the
> library makes some efforts to reduce the amount of messages and makes
> message exchange itself quite efficient which resulted in a significant
> efficiency gain. But, there is definitely more optimization potential
> buried...
>
> Frank
> Am 06.08.2010 um 00:49 schrieb Paul Johnson:
>
>  Looks interesting.  One point: you seem to be using Read and Show
> typeclasses for serialisation.  I think you would be better off using
> Binary, which is much more efficient.
>
> Paul.
>
> On 03/08/10 09:35, Frank Kupke wrote:
>
> Hi,
>
>  DSTM is an implementation of a robust distributed Software Transactional Memory (STM) library for Haskell. Many real-life applications are distributed by nature. Concurrent applications may profit from robustness added by re-implementation as distributed applications. DSTM extends the STM abstraction to distributed systems and presents an implementation efficient enough to be used in soft real-time applications. Further, the implemented library is robust in itself, offering the application developer a high abstraction level to realize robustness, hence, significantly simplifying this, in general, complex task.
>
>  The DSTM package consists of the DSTM library, a name server application, and three sample distributed programs using the library. Provided are a simple Dining Philosophers, a Chat, and a soft real-time Bomberman game application. Distributed communication is transparent to the application programmer. The application designer uses a very simple name server mechanism to set up the system. The DSTM library includes the management of unavailable process nodes and provides the application with abstract error information thus facilitating the implementation of robust distributed application programs.
>
>  For usage please look into the documentation file: DSTMManual.pdf.
>
> The package including the documentation can be found on:http://hackage.haskell.org/package/DSTM-0.1.1
>
>
> Best regards,
> Frank Kupke
>
>
>
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