[Trilinos-Users] How to broad case a EpetraSerialVector to all the cpus.

[Heroux, Michael A]

There is no direct function to perform this operation, but you should be able to complete the operation with these steps:

?

Epetra_SerialVector vector(length); // length is an integer you previously defined, create on each MPI rank

if (comm.MyPID()?==0) {

// fill vector on PE 0 with values

}

comm.Broadcast(vector.Values(), vector.Length(), 0); // Broadcast from PE 0 to all others.


?Note: The "comm" object is an Epetra_MpiComm object (perhaps accessed via the Epetra_Comm base class. If you do not have direct access to a comm object, you can access one from any of the distributed data objects, for example an Epetra_Map.

________________________________
From: Trilinos-Users <trilinos-users-bounces at trilinos.org> on behalf of ztdepyahoo at gmail.com <ztdepyahoo at gmail.com>
Sent: Sunday, June 18, 2017 10:36 AM
To: trilinos-users
Subject: [EXTERNAL] [Trilinos-Users] How to broad case a EpetraSerialVector to all the cpus.

Dear professor:
    Does  Epetra support to broadcase a EpetraSerialVector to all the oter cpus.
Regards

________________________________
ztdepyahoo at gmail.com
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