Hello,
can any one give me a simple example how to multiply two matrices in java
openmpi ?
I can not understand the difference between if-clauses in openmpi, for example:
1- if-clause to check the master process (rank 0), then I send an array to
process 2 (rank 1).
2- if-clause to check if this process the second process, then I write what I
want.
3- if-clause to receive the result from process 2
In which order should I write these conditions? does each rank (or processor)
execute the main method or the main method will be only one time executed?
What could happen when I check if something was received from other process
(but it has not been received)? is it an error?
I am new in openmpi. I hope that you explain it to me.
Thanks in advance
