Hi everybody,
I'm trying to write a routine that, if a certain condition is met, it
transfers a specific string from processor A to processor B. However, during
this transfer, I have to access the processor B within the same function
(the function was accessed on A, but I need to go to B to put the
transferred string on it's right place). The problem is that I have no idea
how to change between processors while using one of them. Here's a sample of
the code:
for ( int j = 0; j < atom->nlocal; j++ )
{
if ( rank != atom->tag[j] ) //condition for transfer
{
dest = atom->tag[j]; //the one who needs to deliver to
receive
atom->tag[j] = rank;
MPI_Isend( noisez[j], noisesize, MPI_DOUBLE, rank, 0, world,
&request);
}
}
/* I know this doesn't work, but it's just to get the idea of what I'm
trying to do */
if( rank == dest ) //trying to access the destination processor
{
for ( int n = 0; n < atom->nlocal; n++ )
{
if( n =! atomtag[n] )
{
MPI_Irecv( noisez[n], noisesize, MPI_DOUBLE, flag2, 0,
world, &request);
MPI_Wait(&request,&stat);
for ( int m = n; m < atom->nlocal; m++ )
atomtag[m] = m;
break;
}
else if ( n == atom->nlocal -1)
{
MPI_Irecv( noisez[atom->nlocal], noisesize, MPI_DOUBLE,
flag2, 0, world, &request);
MPI_Wait(&request,&stat);
}
}
}
Is there any function to call another processor while using one of them?
Regards,
Alexandre
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