Hello, World with only rank and size.

rank=0;

size = 4;

printf …;

printf …;

Processor A

STDOUT

“Hello World”

I am processor

0 out of 4.

rank=1;

size = 4;

_____

printf …;

Processor B

STDOUT

I am processor

1 out of 4.

rank=2;

size = 4;

_____

printf …;

Processor C

STDOUT

I am processor

2 out of 4.

rank=3;

size = 4;

____

printf …;

Processor D

STDOUT

I am processor

3 out of 4.

Output merged in some order.

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