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107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
#ifndef NG_MPI_HPP_INCLUDED
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#define NG_MPI_HPP_INCLUDED
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#ifdef PARALLEL
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#include <cstdint>
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#include <filesystem>
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#include <optional>
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#include "ngcore_api.hpp"
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#if defined(NG_PYTHON) && defined(NG_MPI4PY)
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#include <pybind11/pybind11.h>
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namespace py = pybind11;
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#endif
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#ifndef NG_MPI_WRAPPER
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#include <mpi.h>
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#if defined(NG_PYTHON) && defined(NG_MPI4PY)
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#include <mpi4py.h>
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#endif
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#endif // NG_MPI_WRAPPER
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namespace ngcore {
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NGCORE_API bool MPI_Loaded();
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NGCORE_API void InitMPI(
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std::optional<std::filesystem::path> mpi_lib_path = std::nullopt);
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#ifdef NG_MPI_WRAPPER
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inline void not_implemented() { throw std::runtime_error("Not implemented"); }
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struct NG_MPI_Status {
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uintptr_t data[4];
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};
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struct NG_MPI_Comm {
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uintptr_t value;
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NG_MPI_Comm() { value = 0; }
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NG_MPI_Comm(uintptr_t value_) : value(value_) {}
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NG_MPI_Comm(const NG_MPI_Comm &comm) : value(comm.value) {}
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void operator=(int value_) { value = value_; }
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void operator=(uintptr_t value_) { value = value_; }
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bool operator==(const NG_MPI_Comm &comm) const { return value == comm.value; }
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bool operator!=(const NG_MPI_Comm &comm) const { return value != comm.value; }
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};
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struct NG_MPI_Datatype {
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uintptr_t value = 0;
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NG_MPI_Datatype() = default;
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NG_MPI_Datatype(uintptr_t value_) : value(value_) {}
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operator bool() const { return value != 0; }
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void operator=(NG_MPI_Datatype type) { value = type.value; }
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void operator=(uintptr_t value_) { value = value_; }
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void operator=(void *value_) { value = reinterpret_cast<uintptr_t>(value_); }
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};
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struct NG_MPI_Request {
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uintptr_t value = 0;
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NG_MPI_Request() = default;
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NG_MPI_Request(uintptr_t value_) : value(value_) {}
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void operator=(uintptr_t value_) { value = value_; }
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};
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struct NG_MPI_Op {
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uintptr_t value;
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NG_MPI_Op(uintptr_t value_) : value(value_) {}
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void operator=(uintptr_t value_) { value = value_; }
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void operator=(void *value_) { value = reinterpret_cast<uintptr_t>(value_); }
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};
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struct NG_MPI_Group {
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uintptr_t value = 0;
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NG_MPI_Group(uintptr_t value_) : value(value_) {}
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NG_MPI_Group() = default;
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};
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struct NG_MPI_Aint {
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intptr_t value = 0;
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NG_MPI_Aint(intptr_t value_) : value(value_) {}
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NG_MPI_Aint() = default;
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};
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#else
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using NG_MPI_Status = MPI_Status;
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using NG_MPI_Comm = MPI_Comm;
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using NG_MPI_Datatype = MPI_Datatype;
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using NG_MPI_Request = MPI_Request;
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using NG_MPI_Op = MPI_Op;
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using NG_MPI_Group = MPI_Group;
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using NG_MPI_Aint = MPI_Aint;
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#endif
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#include "ng_mpi_generated_declarations.hpp"
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#if defined(NG_PYTHON) && defined(NG_MPI4PY)
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NGCORE_API extern bool (*NG_MPI_CommFromMPI4Py)(py::handle, NG_MPI_Comm &);
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NGCORE_API extern py::handle (*NG_MPI_CommToMPI4Py)(NG_MPI_Comm);
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#endif
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} // namespace ngcore
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#endif // PARALLEL
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#endif // NG_MPI_HPP_INCLUDED
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