Diego,
try to decrease your displacements by one.
Best
Georg
Am 14.10.2015 um 15:51 schrieb Diego Avesani:
dear all,
I have some problem with MPI_GATHERV.
In my code I generate a complex number
DO ij=iNS,iNE
X11(ij) = cmplx(1.,0.)
ENDDO
where iNS,INE change according to the CPU rank, in may case
cpu 0 1 10050
cpu 1 10051 20100
cpu 2 20101 30150
cpu 3 30151 40401
according to that I have
nNodeGLOBAL = 10050 10050 10050 10251
IDNodeStartGLOBAL = 1 10051 20101 30151
After that I apply a MPI_GATHERV as
CALL MPI_GATHERV(X11(*iNS:iNE*),MPIdata%nNodes, mpi_double_cpmplex,
*PHIH*, nNodeGLOBAL,IDNodeStartGLOBAL, mpi_double_cpmplex, 0,
MPI_COMM_WORLD, Err)
but when I plot REAL(PHIH(1)), I get
0
I use fortran, do you think that there is an error in nNodeGLOBAL? do
I have to allocate the vector nNodeGLOBAL and IDNodeStartGLOBAL
satrting from 0 according to the name of the rank?
really really
thanks a lot
Diego
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