Unverified Commit 8e11d71d authored by William F Godoy's avatar William F Godoy Committed by GitHub
Browse files

Merge pull request #995 from aronhelser/hello_reader_selection 

helloBPReader - add selection so mpirun -n 2 works.
parents 3a1f1424 2608e312

examples/hello/bpReader/helloBPReader.cpp

+7 −0
Original line number Diff line number Diff line
@@ -5,6 +5,9 @@ 
 * helloBPReader.cpp: Simple self-descriptive example of how to read a variable

 * to a BP File.

 *

 * Try running like this from the build directory:

 *   mpirun -np 3 ./bin/hello_bpReader

 *

 *  Created on: Feb 16, 2017

 *      Author: William F Godoy godoywf@ornl.gov

 */
@@ -63,6 +66,8 @@ int main(int argc, char *argv[]) 


        if (bpFloats) // means found

        {

            // read only the chunk corresponding to our rank

            bpFloats.SetSelection({{Nx * rank}, {Nx}});

            // myFloats.data is pre-allocated

            bpReader.Get<float>(bpFloats, myFloats.data(), adios2::Mode::Sync);
@@ -76,6 +81,8 @@ int main(int argc, char *argv[]) 


        if (bpInts) // means not found

        {

            // read only the chunk corresponding to our rank

            bpInts.SetSelection({{Nx * rank}, {Nx}});

            // myInts.data is pre-allocated

            bpReader.Get<int>(bpInts, myInts.data(), adios2::Mode::Sync);