[erlang-questions] Tilera 64-core chip - let's help them help us!

Thomas Lindgren <>
Thu Sep 6 15:37:54 CEST 2007


--- Hugh Perkins <> wrote:

> What are good resources I can read to find out how
> Erlang programs get
> split across different processors?
> 
> What about things like maps?  To what extent
> can/will Erlang map them
> across different processors?

Here is the 5,000 ft view of how it works in
Erlang/OTP on Unix:

An Erlang node is basically a Unix heavyweight
process. If you are using SMP, then the Erlang
processes ready to run on that node are scheduled onto
the available threads from a global run queue.
(Without SMP, the ready processes are handled by the
main thread only.) Port programs and suchlike may
additionally run in a separate thread pool.

There are variations on the details in the literature,
but this is also a fairly 'standard' way of
implementing these things.

You can use a number of libraries, such as rpc or
slave, to map computations onto nodes. Or roll your
own. Hope this helps.

Best,
Thomas



       
____________________________________________________________________________________
Need a vacation? Get great deals
to amazing places on Yahoo! Travel.
http://travel.yahoo.com/



More information about the erlang-questions mailing list