Added examples comparing native Hypre and TNL wrappers for Hypre

add_subdirectory( Hypre )

#add_subdirectory( simple-examples )

#add_subdirectory( Hamilton-Jacobi )

#add_subdirectory( heat-equation )

if( ${BUILD_MPI} )

   find_package(Hypre)

   if( ${HYPRE_FOUND} )

      foreach( source IN ITEMS hypre-ex5.c tnl-hypre-ex5.cpp )

         string( REGEX REPLACE "\.cpp|\.c" "" target ${source} )

         add_executable( ${target} ${source} )

         target_compile_definitions( ${target} PUBLIC "-DHAVE_HYPRE" )

         target_include_directories( ${target} PUBLIC ${HYPRE_INCLUDE_DIRS} )

         target_link_libraries( ${target} ${HYPRE_LIBRARIES} -lm )

         install( TARGETS ${target} RUNTIME DESTINATION bin )

      endforeach()

   endif()

endif()

/******************************************************************************

 * Copyright (c) 1998 Lawrence Livermore National Security, LLC and other

 * HYPRE Project Developers. See the top-level COPYRIGHT file for details.

 *

 * SPDX-License-Identifier: (Apache-2.0 OR MIT)

 ******************************************************************************/

/*--------------------------------------------------------------------------

 * Header file for examples

 *--------------------------------------------------------------------------*/

#ifndef HYPRE_EXAMPLES_INCLUDES

#define HYPRE_EXAMPLES_INCLUDES

#include <HYPRE_config.h>

#if defined(HYPRE_EXAMPLE_USING_CUDA)

#include <cuda_runtime.h>

#ifndef HYPRE_USING_UNIFIED_MEMORY

#error *** Running the examples on GPUs requires Unified Memory. Please reconfigure and rebuild with --enable-unified-memory ***

#endif

static inline void*

gpu_malloc(size_t size)

{

   void *ptr = NULL;

   cudaMallocManaged(&ptr, size, cudaMemAttachGlobal);

   return ptr;

}

static inline void*

gpu_calloc(size_t num, size_t size)

{

   void *ptr = NULL;

   cudaMallocManaged(&ptr, num * size, cudaMemAttachGlobal);

   cudaMemset(ptr, 0, num * size);

   return ptr;

}

#define malloc(size) gpu_malloc(size)

#define calloc(num, size) gpu_calloc(num, size)

#define free(ptr) ( cudaFree(ptr), ptr = NULL )

#endif /* #if defined(HYPRE_EXAMPLE_USING_CUDA) */

#endif /* #ifndef HYPRE_EXAMPLES_INCLUDES */

#!/bin/bash

ex=ex5

keys=Aaamc

dir="${1:-.}"

mesh="$dir/$ex.mesh"

sol="$dir/$ex.sol"

if ! test -e "$mesh"; then

    echo "Error: cannot find mesh file for $ex"

    exit 1

fi

echo "FiniteElementSpace" > "$sol"

echo "FiniteElementCollection: H1_2D_P1" >> "$sol"

echo "VDim: 1" >> "$sol"

echo "Ordering: 0" >> "$sol"

echo "" >> "$sol"

find "$dir" -name "$ex.sol.??????" | sort | xargs cat >> "$sol"

glvis -m "$mesh" -g "$sol" -k "$keys"