[wenxu]

Dear Foamers,

Now I have a problem about parallel, could anyone be so kind to help me?

I want to statistic the particle's velocity in solver with parallel. However, it seems that the solver is calculated only with master processor. That's means the parcels are distributed at different processors but only some of them on the master processor. So how can I gather all of the parcels from different processors and statistics them? For example:

label Nparcels=coalParcels.nParcels();
IDLList<coalParcel>::iterator iter=coalParcels.begin();

In fact, there are 100000 parcels in the computational domain, but when I use two processors, then only half of them can be statistics which are in the master processor. Corresponding to the code: Nparcels = 0.5 * total parcel number. (two processors)

Could anyone give me some hints?

Thank you very much!

Best regards,
Wen Xu

[wenxu]

Briefly, how to gather all of the parcels from different processors to a single parcel List in Solver?

regards,
Xu

[wenxu]

http://www.cfd-online.com/Forums/ope...rocessors.html

This may help.