Practice meeting, Dec. 2nd

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Lyle Kopnicky

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Nov 12, 2019, 12:04:04 AM11/12/19
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When: Monday, Nov 11th, 6:30-8:30pm

Where: Collective Agency Downtown, Suite 1108, 511 SW 10th Ave, Portland, OR (opposite side of the floor from the elevators)

We'll discuss Chapter 14, "Distributed Programming", of Parallel and Concurrent Programming in Haskell. Please read it beforehand. You may wish to try running the code examples from the book. At the meeting anyone will be able to present and contribute to the discussion.

Meetup link to RSVP:

Hope to see you then!

Lyle Kopnicky

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Nov 12, 2019, 12:04:55 AM11/12/19
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Correction to the body of the announcement. It is on Dec. 2nd, as in the subject, not Nov. 11th. Same time/location.

Lyle Kopnicky

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Dec 1, 2019, 10:31:02 PM12/1/19
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FYI, this command works for me for compiling the ping program:

stack ghc --package=distributed-process --package=distributed-process-simplelocalnet distrib-ping/ping.hs

You need to compile from the parconc-examples directory, so it will find DistribUtils.hs.

- Lyle

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Lyle Kopnicky

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Dec 15, 2019, 8:04:17 PM12/15/19
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Another fun meeting on the 2nd. We got through about half of the chapter on Distributed Programming, finishing with Typed Channels.

We were able to run the examples, except when it got to trying to run a process on multiple machines, with auto-discovery. It seems you need to be running the same binary on all the machines, and thus the same operating system. You also need to be running on a LAN, where presumably it can use broadcast messages for discovery.

We also aren't clear why we should call terminate at the end of a process, since that happens automatically. Supposedly it will make a difference in larger programs. Maybe we'll find out later in the chapter.

- Lyle
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