RE: Use of distributed computing in C++

[Louis C]

Thanks, it is much clearer now !



De : Pavel Tupitsyn 
Envoyé : lundi 8 avril 2024 16:36
À : user@ignite.apache.org 
Objet : Re: Use of distributed computing in C++

I thought the question was about thin client, which can only run Java tasks.

The attached code will work from a C++ thick client or server node, the 
requirement is to invoke RegisterComputeFunc [1] on every server node 
beforehand.

[1] 
https://ignite.apache.org/releases/latest/cppdoc/classignite_1_1IgniteBinding.html#a25339becdaa6ea01c6ef2d4ec8da

On Mon, Apr 8, 2024 at 4:30 PM Louis C 
mailto:l...@outlook.fr>> wrote:
Thanks for your answer, it answers a part of my question.

But what about this code that is pure C++ ? (can be seen on the previous link I 
sent) :

[cid:ii_18ebe2192c3cb971f161]
How does one make sure that the server knows this task ?

Best regards,
Louis

De : Pavel Tupitsyn mailto:ptupit...@apache.org>>
Envoyé : lundi 8 avril 2024 11:34
À : user@ignite.apache.org<mailto:user@ignite.apache.org> 
mailto:user@ignite.apache.org>>
Objet : Re: Use of distributed computing in C++

С++ client can execute Compute tasks that are written in Java and deployed to 
the server nodes:

https://ignite.apache.org/releases/latest/cppdoc/classignite_1_1thin_1_1compute_1_1ComputeClient.html

On Fri, Apr 5, 2024 at 3:41 PM Louis C 
mailto:l...@outlook.fr>> wrote:
Hello everyone,

I was interested in the distributed computed in C++ in Ignite, as described 
here :
https://ignite.apache.org/docs/latest/distributed-computing/distributed-computing

I noted that the classes that will be executed must be known by the server, as 
said here :



In order to run tasks on the remote nodes, make sure the class definitions of 
the tasks are available on the nodes. You can do this in two ways:

  *   Add the classes to the classpath of the nodes;

  *   Enable peer class 
loading<https://ignite.apache.org/docs/latest/code-deployment/peer-class-loading>.

However these 2 points are mostly related to Java-based tasks, and I could not 
find anything regarding C++.
So my question will be : how can a C++ client share an execution task on the 
server nodes ? Is it transparent ?
Must we add a dll/.so on the server nodes ? In this case how to load this dll ?

Thanks in advance,
Louis C

Re: Use of distributed computing in C++

[Pavel Tupitsyn]

I thought the question was about thin client, which can only run Java tasks.

The attached code will work from a C++ thick client or server node, the
requirement is to invoke RegisterComputeFunc [1] on every server node
beforehand.

[1]
https://ignite.apache.org/releases/latest/cppdoc/classignite_1_1IgniteBinding.html#a25339becdaa6ea01c6ef2d4ec8da

On Mon, Apr 8, 2024 at 4:30 PM Louis C  wrote:

> Thanks for your answer, it answers a part of my question.
>
> But what about this code that is pure C++ ? (can be seen on the previous
> link I sent) :
>
>
> How does one make sure that the server knows this task ?
>
> Best regards,
> Louis
> --
> *De :* Pavel Tupitsyn 
> *Envoyé :* lundi 8 avril 2024 11:34
> *À :* user@ignite.apache.org 
> *Objet :* Re: Use of distributed computing in C++
>
> С++ client can execute Compute tasks that are written in Java and deployed
> to the server nodes:
>
>
> https://ignite.apache.org/releases/latest/cppdoc/classignite_1_1thin_1_1compute_1_1ComputeClient.html
>
> On Fri, Apr 5, 2024 at 3:41 PM Louis C  wrote:
>
> Hello everyone,
>
> I was interested in the distributed computed in C++ in Ignite, as
> described here :
>
> https://ignite.apache.org/docs/latest/distributed-computing/distributed-computing
>
> I noted that the classes that will be executed must be known by the
> server, as said here :
>
>
> *In order to run tasks on the remote nodes, make sure the class
> definitions of the tasks are available on the nodes. You can do this in two
> ways:*
>
>-
>
>*Add the classes to the classpath of the nodes;*
>-
>
>*Enable peer class loading
>
> <https://ignite.apache.org/docs/latest/code-deployment/peer-class-loading>.*
>
> However these 2 points are mostly related to Java-based tasks, and I could
> not find anything regarding C++.
> So my question will be : how can a C++ client share an execution task on
> the server nodes ? Is it transparent ?
> Must we add a dll/.so on the server nodes ? In this case how to load this
> dll ?
>
> Thanks in advance,
> Louis C
>
>

RE: Use of distributed computing in C++

[Louis C]

Thanks for your answer, it answers a part of my question.

But what about this code that is pure C++ ? (can be seen on the previous link I 
sent) :

[cid:7fd825a6-4269-4ded-80ea-530ed872a545]
How does one make sure that the server knows this task ?

Best regards,
Louis

De : Pavel Tupitsyn 
Envoyé : lundi 8 avril 2024 11:34
À : user@ignite.apache.org 
Objet : Re: Use of distributed computing in C++

С++ client can execute Compute tasks that are written in Java and deployed to 
the server nodes:

https://ignite.apache.org/releases/latest/cppdoc/classignite_1_1thin_1_1compute_1_1ComputeClient.html

On Fri, Apr 5, 2024 at 3:41 PM Louis C 
mailto:l...@outlook.fr>> wrote:
Hello everyone,

I was interested in the distributed computed in C++ in Ignite, as described 
here :
https://ignite.apache.org/docs/latest/distributed-computing/distributed-computing

I noted that the classes that will be executed must be known by the server, as 
said here :



In order to run tasks on the remote nodes, make sure the class definitions of 
the tasks are available on the nodes. You can do this in two ways:

  *   Add the classes to the classpath of the nodes;

  *   Enable peer class 
loading<https://ignite.apache.org/docs/latest/code-deployment/peer-class-loading>.

However these 2 points are mostly related to Java-based tasks, and I could not 
find anything regarding C++.
So my question will be : how can a C++ client share an execution task on the 
server nodes ? Is it transparent ?
Must we add a dll/.so on the server nodes ? In this case how to load this dll ?

Thanks in advance,
Louis C

Re: Use of distributed computing in C++

[Pavel Tupitsyn]

С++ client can execute Compute tasks that are written in Java and deployed
to the server nodes:

https://ignite.apache.org/releases/latest/cppdoc/classignite_1_1thin_1_1compute_1_1ComputeClient.html

On Fri, Apr 5, 2024 at 3:41 PM Louis C  wrote:

> Hello everyone,
>
> I was interested in the distributed computed in C++ in Ignite, as
> described here :
>
> https://ignite.apache.org/docs/latest/distributed-computing/distributed-computing
>
> I noted that the classes that will be executed must be known by the
> server, as said here :
>
>
> *In order to run tasks on the remote nodes, make sure the class
> definitions of the tasks are available on the nodes. You can do this in two
> ways:*
>
>-
>
>*Add the classes to the classpath of the nodes;*
>-
>
>*Enable peer class loading
>
> .*
>
> However these 2 points are mostly related to Java-based tasks, and I could
> not find anything regarding C++.
> So my question will be : how can a C++ client share an execution task on
> the server nodes ? Is it transparent ?
> Must we add a dll/.so on the server nodes ? In this case how to load this
> dll ?
>
> Thanks in advance,
> Louis C
>