why" write(*,*) nid, nelv,vx(1,1,1,1) " gives different results with 2cpus

[Technical Forex]

     I want to output tthe velocity with 

               write(*,*) nid, nelv,vx(1,1,1,1)

but the program gives me the following different values.

          1         576   0.0000000000000000    
           0         576  0.98813790082931519     

i want to know hwat is the reason?

[Philipp Schlatter]

nid is the rank (i.e. MPI process ID). So it seems you run on 2 ranks (0 and 1). The velocity vx(1,1,1,1) corresponds to the value in the 1,1,1 position of the first element local to processes 0 and 1, respectively. Therefor they are different, because they correspond to different elements.

Philipp

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