[vtkusers] broadcasting an vtkUnstructuredGrid

[Jeff Lee]

Kevin H. Hobbs wrote:
> On Wed, 2006-08-02 at 15:30 +0200, Martin Baumann wrote:
>   
>> Hi,
>>
>>     
>>> Can you preposition the whole file or pieces of the file onto local
>>> storage on each node?
>>>       
>> copying the files on every node is no solution in my case as the files 
>> can be very large.
>> And not all of the nodes have enough memory capacity to hold the files.
>>     
>
> You mean storage right?
>
> OK, the clusters I use have local disks on each node mounted as /tmp
> just for this. It's really nice not to have to deal with file
> contention, NFS and so on.
>
>   
>>> Do you rally want the same data on all the nodes? 
>>>       
>> I am programming a parallel particle tracer. A particle could move to 
>> any place in the
>> grid in a calculation step. So each node should have access to all data.
>>     
>
> So the nodes have enough memory to hold the whole data set, but not
> enough storage?
>
> They can't ask for the pieces they need? Are there so many particles
> that each process would have a particle in most pieces? Would it make
> sense to break the data up and pass particles instead of data?
>   

Are you aware of the distributed-data vtkPStreamTracer filter which 
already exists?
-Jeff

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