Hi, I'm having some troubles with the attached code SendReceive.c.
The idea is to open a dataset with process p-1 and then to distribute it to the remaining processes. This solution works when the variable ln (local number of elements) is less than 8182. When I increase the number of elements I've the following error:
mpiexec -np 2 ./sendreceive 16366
Process 0 is receiving 8183 elements from process 1
Process 1 is sending 8183 elements to process 0
Fatal error in MPI_Recv: Other MPI error, error stack:
MPI_Recv(224)...................: MPI_Recv(buf=0x2000590, count=8183, MPI_DOUBLE, src=1, tag=MPI_ANY_TAG, MPI_COMM_WORLD, status=0x1) failed
PMPIDI_CH3I_Progress(623).......: fail failed
pkt_RTS_handler(317)............: fail failed
do_cts(662).....................: fail failed
MPID_nem_lmt_dcp_start_recv(288): fail failed
dcp_recv(154)...................: Internal MPI error! cannot read from remote process
I'm using the student license of the intel implementation of mpi (obtained by installing Intel® Parallel Studio XE Cluster Edition (includes Fortran and C/C++)).
Is this a limitation of the licence? Otherwise, what I'm doing wrong?
| Attachment | Size |
|---|---|
Download sendreceive.c | 1.45 KB |