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lammps/lib/kokkos/example/query_device/query_device.cpp
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query_device.cpp
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/*
//@HEADER
// ************************************************************************
//
// Kokkos v. 2.0
// Copyright (2014) Sandia Corporation
//
// Under the terms of Contract DE-AC04-94AL85000 with Sandia Corporation,
// the U.S. Government retains certain rights in this software.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// 1. Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
//
// 2. Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
//
// 3. Neither the name of the Corporation nor the names of the
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY SANDIA CORPORATION "AS IS" AND ANY
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
// PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL SANDIA CORPORATION OR THE
// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
// EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
// PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
// LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
// NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
// SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
//
// Questions? Contact H. Carter Edwards (hcedwar@sandia.gov)
//
// ************************************************************************
//@HEADER
*/
#include <iostream>
#include <sstream>
#include <Kokkos_Macros.hpp>
#if defined( KOKKOS_HAVE_MPI )
#include <mpi.h>
#endif
#include <Kokkos_Core.hpp>
//----------------------------------------------------------------------------
//----------------------------------------------------------------------------
int main( int argc , char ** argv )
{
std::ostringstream msg ;
#if defined( KOKKOS_HAVE_MPI )
MPI_Init( & argc , & argv );
int mpi_rank = 0 ;
MPI_Comm_rank( MPI_COMM_WORLD , & mpi_rank );
msg << "MPI rank(" << mpi_rank << ") " ;
#endif
msg << "{" << std::endl ;
if ( Kokkos::hwloc::available() ) {
msg << "hwloc( NUMA[" << Kokkos::hwloc::get_available_numa_count()
<< "] x CORE[" << Kokkos::hwloc::get_available_cores_per_numa()
<< "] x HT[" << Kokkos::hwloc::get_available_threads_per_core()
<< "] )"
<< std::endl ;
}
#if defined( KOKKOS_HAVE_CUDA )
Kokkos::Cuda::print_configuration( msg );
#endif
msg << "}" << std::endl ;
std::cout << msg.str();
#if defined( KOKKOS_HAVE_MPI )
MPI_Finalize();
#endif
return 0 ;
}
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