[mpich-discuss] send ,receive question

[Lion Lion]

Hi all,
I'm new in parallel programming .I want to write a code that in it for example process 0 sends a[99][99] to process 1
and process 1 must use this variable as b[0][0] what must I do?
I did it before by sending a[99][99] and using as a[99][99] but now for some memory problems(huge matrix) I have to 
use above method (sending a[99][99] and using as b[0][0]).
thanks