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// Copyright (C) 2017-2019 Chris Richardson and Garth N. Wells
//
// This file is part of DOLFINx (https://www.fenicsproject.org)
//
// SPDX-License-Identifier: LGPL-3.0-or-later
#include <complex>
#include <memory>
#include <optional>
#include <span>
#include <string>
#include <vector>
#include <nanobind/nanobind.h>
#include <nanobind/ndarray.h>
#include <nanobind/stl/array.h>
#include <nanobind/stl/optional.h>
#include <nanobind/stl/pair.h>
#include <nanobind/stl/string.h>
#include <nanobind/stl/tuple.h>
#include <nanobind/stl/vector.h>
#include <dolfinx/common/IndexMap.h>
#include <dolfinx/common/Scatterer.h>
#include <dolfinx/common/Table.h>
#include <dolfinx/common/Timer.h>
#include <dolfinx/common/defines.h>
#include <dolfinx/common/log.h>
#include <dolfinx/common/timing.h>
#include <dolfinx/common/utils.h>
#include "MPICommWrapper.h"
#include "array.h"
#include "caster_mpi.h"
namespace nb = nanobind;
namespace dolfinx_wrappers
{
/// Return true if DOLFINx is compiled with petsc4py
consteval bool has_petsc4py()
{
#ifdef HAS_PETSC4PY
return true;
#else
return false;
#endif
}
// Interface for dolfinx/common
void common(nb::module_& m)
{
// From dolfinx/common/defines.h
m.attr("git_commit_hash") = dolfinx::git_commit_hash();
m.attr("has_adios2") = dolfinx::has_adios2();
m.attr("has_complex_ufcx_kernels") = dolfinx::has_complex_ufcx_kernels();
m.attr("has_debug") = dolfinx::has_debug();
m.attr("has_kahip") = dolfinx::has_kahip();
m.attr("has_parmetis") = dolfinx::has_parmetis();
m.attr("has_petsc") = dolfinx::has_petsc();
m.attr("has_petsc4py") = has_petsc4py();
m.attr("has_ptscotch") = dolfinx::has_ptscotch();
m.attr("has_slepc") = dolfinx::has_slepc();
m.attr("ufcx_signature") = dolfinx::ufcx_signature();
m.attr("version") = dolfinx::version();
nb::enum_<dolfinx::Table::Reduction>(m, "Reduction")
.value("max", dolfinx::Table::Reduction::max)
.value("min", dolfinx::Table::Reduction::min)
.value("average", dolfinx::Table::Reduction::average);
// dolfinx::common::IndexMap
nb::class_<dolfinx::common::IndexMap>(m, "IndexMap")
.def(
"__init__",
[](dolfinx::common::IndexMap* self, MPICommWrapper comm,
std::int32_t local_size)
{ new (self) dolfinx::common::IndexMap(comm.get(), local_size); },
nb::arg("comm"), nb::arg("local_size"))
.def(
"__init__",
[](dolfinx::common::IndexMap* self, MPICommWrapper comm,
std::int32_t local_size,
nb::ndarray<const std::int64_t, nb::ndim<1>, nb::c_contig> ghosts,
nb::ndarray<const int, nb::ndim<1>, nb::c_contig> ghost_owners)
{
new (self) dolfinx::common::IndexMap(
comm.get(), local_size, std::span(ghosts.data(), ghosts.size()),
std::span(ghost_owners.data(), ghost_owners.size()));
},
nb::arg("comm"), nb::arg("local_size"), nb::arg("ghosts"),
nb::arg("ghost_owners"))
.def(
"__init__",
[](dolfinx::common::IndexMap* self, MPICommWrapper comm,
std::int32_t local_size,
std::array<nb::ndarray<const int, nb::ndim<1>, nb::c_contig>, 2>
dest_src,
nb::ndarray<const std::int64_t, nb::ndim<1>, nb::c_contig> ghosts,
nb::ndarray<const int, nb::ndim<1>, nb::c_contig> ghost_owners)
{
std::array<std::vector<int>, 2> ranks;
ranks[0].assign(dest_src[0].data(),
dest_src[0].data() + dest_src[0].size());
ranks[1].assign(dest_src[1].data(),
dest_src[1].data() + dest_src[1].size());
new (self) dolfinx::common::IndexMap(
comm.get(), local_size, ranks,
std::span(ghosts.data(), ghosts.size()),
std::span(ghost_owners.data(), ghost_owners.size()));
},
nb::arg("comm"), nb::arg("local_size"), nb::arg("dest_src"),
nb::arg("ghosts"), nb::arg("ghost_owners"))
.def_prop_ro(
"comm", [](const dolfinx::common::IndexMap& self)
{ return MPICommWrapper(self.comm()); }, nb::keep_alive<0, 1>())
.def_prop_ro("size_local", &dolfinx::common::IndexMap::size_local)
.def_prop_ro("size_global", &dolfinx::common::IndexMap::size_global)
.def_prop_ro("num_ghosts", &dolfinx::common::IndexMap::num_ghosts)
.def_prop_ro("local_range", &dolfinx::common::IndexMap::local_range,
"Range of indices owned by this map")
.def("index_to_dest_ranks",
&dolfinx::common::IndexMap::index_to_dest_ranks)
.def("imbalance", &dolfinx::common::IndexMap::imbalance,
"Imbalance of the current IndexMap.")
.def_prop_ro(
"ghosts",
[](const dolfinx::common::IndexMap& self)
{
std::span ghosts = self.ghosts();
return nb::ndarray<const std::int64_t, nb::numpy>(
ghosts.data(), {ghosts.size()}, nb::handle());
},
nb::rv_policy::reference_internal, "Return list of ghost indices")
.def_prop_ro(
"owners",
[](const dolfinx::common::IndexMap& self)
{
std::span owners = self.owners();
return nb::ndarray<nb::numpy, const int, nb::ndim<1>>(
owners.data(), {owners.size()}, nb::handle());
},
nb::rv_policy::reference_internal)
.def(
"local_to_global",
[](const dolfinx::common::IndexMap& self,
nb::ndarray<const std::int32_t, nb::ndim<1>, nb::c_contig> local)
{
std::vector<std::int64_t> global(local.size());
self.local_to_global(std::span(local.data(), local.size()), global);
return dolfinx_wrappers::as_nbarray(std::move(global));
},
nb::arg("local"))
.def(
"global_to_local",
[](const dolfinx::common::IndexMap& self,
nb::ndarray<const std::int64_t, nb::ndim<1>, nb::c_contig> global)
{
std::vector<std::int32_t> local(global.size());
self.global_to_local(std::span(global.data(), global.size()),
local);
return dolfinx_wrappers::as_nbarray(std::move(local));
},
nb::arg("global"));
// dolfinx::common::Timer
nb::class_<dolfinx::common::Timer>(m, "Timer", "Timer class")
.def(nb::init<std::optional<std::string>>(), nb::arg("task").none())
.def("start", &dolfinx::common::Timer::start, "Start timer")
.def("stop", &dolfinx::common::Timer::stop, "Stop timer")
.def("resume", &dolfinx::common::Timer::resume)
.def("elapsed", &dolfinx::common::Timer::elapsed);
// dolfinx::common::Timer enum
nb::enum_<dolfinx::TimingType>(m, "TimingType")
.value("wall", dolfinx::TimingType::wall)
.value("system", dolfinx::TimingType::system)
.value("user", dolfinx::TimingType::user);
m.def("timing", &dolfinx::timing);
m.def(
"list_timings",
[](MPICommWrapper comm, std::vector<dolfinx::TimingType> type,
dolfinx::Table::Reduction reduction)
{
std::set<dolfinx::TimingType> _type(type.begin(), type.end());
dolfinx::list_timings(comm.get(), _type, reduction);
},
nb::arg("comm"), nb::arg("type"), nb::arg("reduction"));
m.def(
"init_logging",
[](std::vector<std::string> args)
{
std::vector<char*> argv(args.size() + 1, nullptr);
for (std::size_t i = 0; i < args.size(); ++i)
argv[i] = const_cast<char*>(args[i].data());
dolfinx::init_logging(args.size(), argv.data());
},
nb::arg("args"));
m.def(
"create_sub_index_map",
[](const dolfinx::common::IndexMap& imap,
nb::ndarray<const std::int32_t, nb::ndim<1>, nb::c_contig> indices,
bool allow_owner_change)
{
auto [map, submap_to_map] = dolfinx::common::create_sub_index_map(
imap, std::span(indices.data(), indices.size()),
dolfinx::common::IndexMapOrder::any, allow_owner_change);
return std::pair(std::move(map), dolfinx_wrappers::as_nbarray(
std::move(submap_to_map)));
},
nb::arg("index_map"), nb::arg("indices"), nb::arg("allow_owner_change"));
}
} // namespace dolfinx_wrappers
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