[petsc-users] ISGlobalToLocalMappingApplyBlock

[Adrian Croucher]

I actually attached the wrong test program last time- I've attached the 
right one here, which is much simpler. It test global indices 0, 1, ... 9.

If I run on 2 processes, the local indices it returns are:

rank 0: 0, 1, 2, 3, 4, 0, 0, 0, -253701943, 0
rank 1: -1, -1, -1, -1, -1, -1, -1, -1, -1, -1

The results I expected are:

rank 0: 0, 1, 2, 3, 4, -1, -1, -1, -1, -1
rank 1: -1, -1, -1, -1, -1, 0, 1, 2, 3, 4

So the results for global indices 0, 1,... 4 are what I expected, on 
both ranks. But the results for global indices 5, 6, ... 9 are not.

I tried increasing the blocksize to 3 or 4, and the results were exactly 
the same.

It only gives the results I expected if I change the blocksize to 1.

- Adrian

-- 
Dr Adrian Croucher
Senior Research Fellow
Department of Engineering Science
University of Auckland, New Zealand
email: a.croucher at auckland.ac.nz
tel: +64 (0)9 923 4611

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