[erlang-questions] Sending messages to multiple processes?

G.S. <>
Fri May 1 05:01:04 CEST 2009


Is the broadcasting of msgs using pg or pg2 faster than simply having a list
of pids and looping through them?

2009/4/30 Davide Marquês <>

> Hi Kevin,
>
> Is there a neato idiom for sending a single message to multiple
>> processes, up to say 200, or do I just need to loop it?
>
> No "idiom" that I'm aware of.
> You can use the pg module to group a bunch of processes together and
> send them messages via the group name. Info:
> http://www.erlang.org/doc/man/pg.html
> http://erlang.org/doc/man/pg2.html
>
> I also need to know they finished processing the message.  Is this the
>> wrong road to go down?
>
> That's just a matter of sending the "master process" Pid to the
> workers/slaves when they are started and having then report back when
> they're done.
>
>
>> Basically I'm starting 200 processes, reading in a single file, and each
>> process is fed the same line of the file one by one until the end, but
>> they all handle it differently, and when they have finished all the
>> lines, they spit out a modified file, and return a value to indicate
>> they are finished.
>
>
> For this simple case you can stick to your own master/slave processes. :)
>
>
>> Thanks for any advice,
>> Kevin
>> _______________________________________________
>> erlang-questions mailing list
>> 
>> http://www.erlang.org/mailman/listinfo/erlang-questions
>>
>
>
>
>
> _______________________________________________
> erlang-questions mailing list
> 
> http://www.erlang.org/mailman/listinfo/erlang-questions
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://erlang.org/pipermail/erlang-questions/attachments/20090430/98eafae7/attachment.html>


More information about the erlang-questions mailing list