[FLASH-USERS] Guardcells filling with PARAMESH4 data/grid structure

[Marco Mazzuoli]

    Dear all,

I am working on the FLASH code implementing the PARAMESH4 data/grid structure.
Could you clarify me some questions concerning the GuardCells (GC) filling?

I explain the problem:
In order to work on such a local block (with for example 4 GC) I get the pointer to that block with the subroutine "Grid_getBlkPtr".
Then I could assign a new value to some GC variables.
Finally I call the subroutine "Grid_fillGuardCells".

My questions are:
I)  What happens to GC values I had changed?
II) Can I only read GC variables (like boundary conditions) or also write permanently a new value?

In other words:
i)   Which variable I'm really pointing with "Grid_getBlkPtr"? 
ii)  What I change indeed when I work on the GC of that pointer?
iii) Do GC communicate straightforwardly to the adjacent block?

Thank you to everybody.

Sincerely,
    Marco Mazzuoli


Ing. Marco Mazzuoli
Dipartimento di Ingegneria
delle Costruzioni, dell'Ambiente e
del Territorio (DICAT)
via Montallegro 1
16145 GENOVA-ITALY
tel.  +39 010 353 2497
cell. +39 338 7142904
e-mail marco.mazzuoli at unige.it
       marco.mazzuoli84 at gmail.com




 		 	   		   		 	   		  
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