Thanks for the answer.
Isn't that the same thing by the 2-dim arrays?
I mean m1.length*m1.length, for example:
MPI.COMM_WORLD.send(m1, m1.length*m1.length , MPI.INT, 1, tag);
But I get this exception: ArrayIndexOutOfBoundsException.
What should I write to avoid this exception?
Best regards
Ibrahim
Ibrahim,
if you want to send the full array, then please replace
MPI.COMM_WORLD.send(m1, 1, MPI.INT, 1, tag);
with
MPI.COMM_WORLD.send(m1, m1.length, MPI.INT, 1, tag);
and do similar changes in recv
Cheers,
Gilles
On 11/5/2015 2:57 AM, Ibrahim Ikhlawi
wrote:
Hello,
I want to send an array from process to another one. I send the
array but I get only the first element of the array.
This is a section from my code:
int[] m1= new int[5];
if (0 == myrank) {
for(int i= 0; i<m1.length ; i++){
m1[i] = 100;
System.out.println("m1["+i+"]"+m1[i]);
}
MPI.COMM_WORLD.send(m1, 1, MPI.INT, 1, tag);
}else{
MPI.COMM_WORLD.recv(m1 , 1 , MPI.INT , 0 ,tag);
for(int i= 0; i<m1.length ; i++){
m2[i] = 3*m1[i];
System.out.println("m1["+i+"]"+m1[i]+"
m2["+i+"]"+m2[i]);
}
MPI.COMM_WORLD.send(m2, 1 , MPI.INT, 0, tag);
}
if(0 == myrank){
MPI.COMM_WORLD.recv(m2, 1 , MPI.INT, 1 ,tag);
System.out.println(Arrays.toString(m2));
}
the result of this program is:
m1[0]100
m1[1]100
m1[2]100
m1[3]100
m1[4]100
[300, 0, 0, 0, 0]
m1[0]100 m2[0]300
m1[1]0 m2[1]0
m1[2]0 m2[2]0
m1[3]0 m2[3]0
m1[4]0 m2[4]0
Thanks in advance
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