[mvapich-discuss] MPI_BCAST() message max size

[Lu Qiyue]

Dear All:

When I am using MPI_BCAST(buffer, count, datatype, root, comm) to broadcast
a very large data stored in buffer, a Seg error occurs.

if assume I have enough memory, I am wondering, is there any maximum limit
on buffer size? In my case, count* 8 bytes (double precision datatype) goes
up to 6 GB. Can this be allowed in mvapich2?

Thanks

Qiyue Lu
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