[akka-user] Binding Actors to CPU or to a core

[Mahesh Govind]

Dear Experts,

Is it possible to bind a group of akka actors to a specific core or to a 
processor  .

I have a situation where the machine is having 2 processors with 6 
cores/processor , but I dont have any clue about the distribution of 
 actors .

Is there a java API equivalent of "taskset"  or similiar functionality ?

Regards
mahesh

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Re: [akka-user] Binding Actors to CPU or to a core

[Endre Varga]

Hi Mahesh,

Unfortunately there is no way to set CPU affinity for a Java thread from
the JVM. You can probably build a native library that you can call into via
JNA.

-Endre

On Tue, Aug 23, 2016 at 5:13 AM, Mahesh Govind  wrote:

> Dear Experts,
>
> Is it possible to bind a group of akka actors to a specific core or to a
> processor  .
>
> I have a situation where the machine is having 2 processors with 6
> cores/processor , but I dont have any clue about the distribution of
>  actors .
>
> Is there a java API equivalent of "taskset"  or similiar functionality ?
>
> Regards
> mahesh
>
> --
> >> Read the docs: http://akka.io/docs/
> >> Check the FAQ: http://doc.akka.io/docs/akka/
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Re: [akka-user] Binding Actors to CPU or to a core

[Patrik Nordwall]

There is a library that you might be able to use:
https://github.com/OpenHFT/Java-Thread-Affinity
It's using native code.

/Patrik

On Tue, Aug 23, 2016 at 9:15 AM, Endre Varga 
wrote:

> Hi Mahesh,
>
> Unfortunately there is no way to set CPU affinity for a Java thread from
> the JVM. You can probably build a native library that you can call into via
> JNA.
>
> -Endre
>
> On Tue, Aug 23, 2016 at 5:13 AM, Mahesh Govind  wrote:
>
>> Dear Experts,
>>
>> Is it possible to bind a group of akka actors to a specific core or to a
>> processor  .
>>
>> I have a situation where the machine is having 2 processors with 6
>> cores/processor , but I dont have any clue about the distribution of
>>  actors .
>>
>> Is there a java API equivalent of "taskset"  or similiar functionality ?
>>
>> Regards
>> mahesh
>>
>> --
>> >> Read the docs: http://akka.io/docs/
>> >> Check the FAQ: http://doc.akka.io/docs/akka/c
>> urrent/additional/faq.html
>> >> Search the archives: https://groups.google.com/group/akka-user
>> ---
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>>
>
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-- 

Patrik Nordwall
Akka Tech Lead
Lightbend  -  Reactive apps on the JVM
Twitter: @patriknw

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Re: [akka-user] Binding Actors to CPU or to a core

[Endre Varga]

Oh, I see. Is that cross platform? If not we might want to build one with
fallback to NOP.

On Tue, Aug 23, 2016 at 9:19 AM, Patrik Nordwall 
wrote:

> There is a library that you might be able to use: https://github.com/
> OpenHFT/Java-Thread-Affinity
> It's using native code.
>
> /Patrik
>
> On Tue, Aug 23, 2016 at 9:15 AM, Endre Varga 
> wrote:
>
>> Hi Mahesh,
>>
>> Unfortunately there is no way to set CPU affinity for a Java thread from
>> the JVM. You can probably build a native library that you can call into via
>> JNA.
>>
>> -Endre
>>
>> On Tue, Aug 23, 2016 at 5:13 AM, Mahesh Govind  wrote:
>>
>>> Dear Experts,
>>>
>>> Is it possible to bind a group of akka actors to a specific core or to a
>>> processor  .
>>>
>>> I have a situation where the machine is having 2 processors with 6
>>> cores/processor , but I dont have any clue about the distribution of
>>>  actors .
>>>
>>> Is there a java API equivalent of "taskset"  or similiar functionality ?
>>>
>>> Regards
>>> mahesh
>>>
>>> --
>>> >> Read the docs: http://akka.io/docs/
>>> >> Check the FAQ: http://doc.akka.io/docs/akka/c
>>> urrent/additional/faq.html
>>> >> Search the archives: https://groups.google.com/grou
>>> p/akka-user
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>>> You received this message because you are subscribed to the Google
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>>>
>>
>> --
>> >> Read the docs: http://akka.io/docs/
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>>
>
>
>
> --
>
> Patrik Nordwall
> Akka Tech Lead
> Lightbend  -  Reactive apps on the JVM
> Twitter: @patriknw
>
> --
> >> Read the docs: http://akka.io/docs/
> >> Check the FAQ: http://doc.akka.io/docs/akka/
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Re: [akka-user] Binding Actors to CPU or to a core

[Mahesh Govind]

Thank you Endre and Patrik.

On Tuesday, August 23, 2016 at 12:51:22 PM UTC+5:30, drewhk wrote:
>
> Oh, I see. Is that cross platform? If not we might want to build one with 
> fallback to NOP.
>
> On Tue, Aug 23, 2016 at 9:19 AM, Patrik Nordwall  > wrote:
>
>> There is a library that you might be able to use: 
>> https://github.com/OpenHFT/Java-Thread-Affinity
>> It's using native code.
>>
>> /Patrik
>>
>> On Tue, Aug 23, 2016 at 9:15 AM, Endre Varga > > wrote:
>>
>>> Hi Mahesh,
>>>
>>> Unfortunately there is no way to set CPU affinity for a Java thread from 
>>> the JVM. You can probably build a native library that you can call into via 
>>> JNA.
>>>
>>> -Endre
>>>
>>> On Tue, Aug 23, 2016 at 5:13 AM, Mahesh Govind >> > wrote:
>>>
 Dear Experts,

 Is it possible to bind a group of akka actors to a specific core or to 
 a processor  .

 I have a situation where the machine is having 2 processors with 6 
 cores/processor , but I dont have any clue about the distribution of 
  actors .

 Is there a java API equivalent of "taskset"  or similiar functionality 
 ?

 Regards
 mahesh

 -- 
 >> Read the docs: http://akka.io/docs/
 >> Check the FAQ: 
 http://doc.akka.io/docs/akka/current/additional/faq.html
 >> Search the archives: 
 https://groups.google.com/group/akka-user
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>>>
>>> -- 
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>>
>>
>>
>> -- 
>>
>> Patrik Nordwall
>> Akka Tech Lead
>> Lightbend  -  Reactive apps on the JVM
>> Twitter: @patriknw
>>
>> -- 
>> >> Read the docs: http://akka.io/docs/
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>
>

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