max_abs_index.hpp

// FEAT3: Finite Element Analysis Toolbox, Version 3
// Copyright (C) 2010 by Stefan Turek & the FEAT group
// FEAT3 is released under the GNU General Public License version 3,
// see the file 'copyright.txt' in the top level directory for details.
 
#pragma once
#ifndef KERNEL_LAFEM_ARCH_MAX_ABS_INDEX_HPP
#define KERNEL_LAFEM_ARCH_MAX_ABS_INDEX_HPP 1
 
// includes, FEAT
#include <kernel/base_header.hpp>
#include <kernel/backend.hpp>
 
 
namespace FEAT
{
  namespace LAFEM
  {
    namespace Arch
    {
      struct MaxAbsIndex
      {
        template <typename DT_>
        static Index value(const DT_ * const x, const Index size)
        {
          return value_generic(x, size);
        }
 
        template <typename ValueType_>
        static ValueType_ value_blocked(const ValueType_ * const x, const Index size)
        {
          return value_blocked_generic(x, size);
        }
 
        static Index value(const float * const x, const Index size)
        {
          BACKEND_SKELETON_RETURN(value_cuda, value_mkl, value_generic, x, size)
        }
 
        static Index value(const double * const x, const Index size)
        {
          BACKEND_SKELETON_RETURN(value_cuda, value_mkl, value_generic, x, size)
        }
 
        template <typename DT_>
        static Index value_generic(const DT_ * const x, const Index size);
 
        template <typename ValueType_>
        static ValueType_ value_blocked_generic(const ValueType_ * const x, const Index size);
 
        static Index value_mkl(const float * const x, const Index size);
        static Index value_mkl(const double * const x, const Index size);
 
        template <typename DT_>
        static Index value_cuda(const DT_ * const x, const Index size);
      };
 
#ifdef FEAT_EICKT
      extern template Index MaxAbsIndex::value_generic(const float * const, const Index);
      extern template Index MaxAbsIndex::value_generic(const double * const, const Index);
#endif
 
    } // namespace Arch
  } // namespace LAFEM
} // namespace FEAT
 
#ifndef  __CUDACC__
#include <kernel/lafem/arch/max_abs_index_generic.hpp>
#endif
#endif // KERNEL_LAFEM_ARCH_MAX_ABS_INDEX_HPP