Re: [Libmesh-users] Syncronize a vector among processes

[Renato P. <re...@gm...>]

Thanks. Will try that.
It is constant size.
In fact, I could make my way through in a dirty pair<int, pair<int,
pair<int, int> > >
I'm debugging something else right now.
I will have to come back later an ddo the specialization.

Thanks,
Renato

On Wed, Jul 4, 2018 at 5:50 PM, Roy Stogner <roy...@ic...>
wrote:

>
> On Wed, 4 Jul 2018, Renato Poli wrote:
>
> I am trying to implement this one: comm().allgather(vector<MyClass>).
>>
>> The compiler fails.
>> It says MyClass is not a StandardType.
>> I tried with a tuple<>, without success.
>>
>
> There actually is a StandardType<tuple<Foo...>> specialization, but
> it's untested and it's only useable if all the Foo types also have
> StandardType specializations.
>
> Any suggestion?
>> Should I specialize a Packing<MyClass *> or so?
>>
>
> Is your class a tuple of built-in constant-size types (or of other
> tuples of built-in types, and so on)?  If so then please you can help
> us debug whatever's going wrong with StandardType<tuple>?
>
> If not, then is your class of constant size?  If so then you can
> specialize StandardType<MyClass>; see the StandardType<pair> case in
> standard_type.h for the best example of what to do.  There are more
> examples in parallel_algebra.h that might also be helpful.
>
> If you have a variable size class... then we're in uncharted
> territory:
>
> I can see that for vector<string>, everything works fine.
>>
>
> That's a special hand-coded case, I'm afraid.  We haven't currently
> got any allgather_packed_range suitable for arbitrary size
> (de)serializable types.
> ---
> Roy
>