[Click] Kernel Click multithreading

Tom Gibson tom.gibson at ipvidnet.com
Fri Apr 10 17:22:40 EDT 2009


Hi Beyers,

Thanks for clearing things up for me.  I'll do some more reading as well.

-Tom

On Fri, Apr 10, 2009 at 4:33 AM, Beyers Cronje <bcronje at gmail.com> wrote:

> Hi Tom,
>
> You need to tell Click which schedulable elements should be bound to which
> thread.
>
> You have two options:
>
> Static binding - See the StaticThreadSched element
> http://read.cs.ucla.edu/click/elements/staticthreadsched
>
> Dynamic balanced binding - See the BalancedThreadSched element
> http://read.cs.ucla.edu/click/elements/balancedthreadsched
>
> Additionally, anyone that is even thinking about multithreading with Click
> should as a start read the  "Flexible control of parallelism in a
> multiprocessor PC router" publication, link over at
> http://read.cs.ucla.edu/click/publications
>
> Lastly, I recall a recent post on the list where a recent commit on the
> tree broke thread scheduling, but was subsequently fixed by Eddie. So best
> would be to work from the most recent GIT release.
>
> Beyers
>
>
> On Fri, Apr 10, 2009 at 1:22 AM, Tom Gibson <tom.gibson at ipvidnet.com>wrote:
>
>> What would a simple click config look like to test utilizing all my
>> available CPU cores with simulated data?
>>
>> I tried the following, but I'm not seeing more than 1 core utilized:
>>
>> InfiniteSource(\<0800>) -> rate1 :: Counter() -> Discard;
>> InfiniteSource(\<0800>) -> rate2 :: Counter() -> Discard;
>> InfiniteSource(\<0800>) -> rate3 :: Counter() -> Discard;
>> InfiniteSource(\<0800>) -> rate4 :: Counter() -> Discard;
>> InfiniteSource(\<0800>) -> rate5 :: Counter() -> Discard;
>> InfiniteSource(\<0800>) -> rate6 :: Counter() -> Discard;
>>
>>
>> I read that a single scheduled element only ever executes on one thread.
>>  I
>> figured making 6 InfiniteSource elements would cause 6 cores to be
>> utilized.
>>
>> I configured click with --enable-multithread=8  and installed with -t 6.
>> What am I missing?
>>
>> -Tom
>> _______________________________________________
>> click mailing list
>> click at amsterdam.lcs.mit.edu
>> https://amsterdam.lcs.mit.edu/mailman/listinfo/click
>>
>
>


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