mem_layout_util.hpp

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/*
# =============================================================================
# Copyright (c) 2016 - 2021 Blue Brain Project/EPFL
#
# See top-level LICENSE file for details.
# =============================================================================
*/
 
#pragma once
 
#include "coreneuron/coreneuron.hpp"
#include "coreneuron/nrniv/nrniv_decl.h"
 
namespace coreneuron {
 
#if !defined(NRN_SOA_PAD)
// for layout 0, every range variable array must have a size which
// is a multiple of NRN_SOA_PAD doubles
#define NRN_SOA_PAD 8
#endif
 
/// return the new offset considering the byte aligment settings
size_t nrn_soa_byte_align(size_t i);
 
/// This function return the index in a flat array of a matrix coordinate (icnt, isz).
/// The matrix size is (cnt, sz)
/// Depending of the layout some padding can be calculated
int nrn_i_layout(int icnt, int cnt, int isz, int sz, int layout);
 
// file data is AoS. ie.
// organized as cnt array instances of mtype each of size sz.
// So input index i refers to i_instance*sz + i_item offset
// Return the corresponding SoA index -- taking into account the
// alignment requirements. Ie. i_instance + i_item*align_cnt.
 
int nrn_param_layout(int i, int mtype, Memb_list* ml);
}  // namespace coreneuron