ComputeCoordinates.hpp

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// -------------------------------------------------------//
//
// SHAMROCK code for hydrodynamics
// Copyright (c) 2021-2026 Timothée David--Cléris <tim.shamrock@proton.me>
// SPDX-License-Identifier: CeCILL Free Software License Agreement v2.1
// Shamrock is licensed under the CeCILL 2.1 License, see LICENSE for more information
//
// -------------------------------------------------------//
 
#pragma once
 
#include "shambackends/vec.hpp"
#include "shammodels/common/amr/AMRBlock.hpp"
#include "shamrock/solvergraph/Field.hpp"
#include "shamrock/solvergraph/INode.hpp"
#include "shamrock/solvergraph/Indexes.hpp"
#include "shamrock/solvergraph/ScalarsEdge.hpp"
 
namespace shammodels::basegodunov::modules {
 
    template<class Tvec, class TgridVec>
    class NodeComputeCoordinates : public shamrock::solvergraph::INode {
        using Tscal    = shambase::VecComponent<Tvec>;
        using AMRBlock = shammodels::amr::AMRBlock<Tvec, TgridVec, 1>;
 
        u32 block_size;
        u32 block_nside;
        Tscal grid_coord_to_pos_fact;
 
        public:
        NodeComputeCoordinates(u32 block_size, u32 block_nside, Tscal grid_coord_to_pos_fact)
            : block_size(block_size), block_nside(block_nside),
              grid_coord_to_pos_fact(grid_coord_to_pos_fact) {
 
            if (block_nside != 2) {
                shambase::throw_with_loc<std::runtime_error>(
                    shambase::format("this module assume block_nside=2, got {}", block_nside));
            }
        }
 
#define NODE_COMPUTE_COORDINATES(X_RO, X_RW)                                                       \
    /* inputs */                                                                                   \
    X_RO(                                                                                          \
        shamrock::solvergraph::Indexes<u32>,                                                       \
        sizes) /* number of blocks per patch for all patches on the current MPI process*/          \
    X_RO(                                                                                          \
        shamrock::solvergraph::IFieldSpan<TgridVec>,                                               \
        spans_block_min) /* min int coordinate of the block*/                                      \
    X_RO(                                                                                          \
        shamrock::solvergraph::IFieldSpan<TgridVec>,                                               \
        spans_block_max) /* max int coordinate of the block*/                                      \
                                                                                                   \
    /* outputs */                                                                                  \
    X_RW(                                                                                          \
        shamrock::solvergraph::IFieldSpan<Tvec>,                                                   \
        spans_coordinates) /* center coordinates of each cell */
 
        EXPAND_NODE_EDGES(NODE_COMPUTE_COORDINATES)
 
#undef NODE_COMPUTE_COORDINATES
 
        void _impl_evaluate_internal();
 
        inline virtual std::string _impl_get_label() const { return "ComputeCoordinates"; }
 
        virtual std::string _impl_get_tex() const;
    };
 
} // namespace shammodels::basegodunov::modules