megenginelite-sys 1.8.2

A safe megenginelite wrapper in Rust
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54

/**
 * \file src/opr-mm/include/megbrain/opr/megray_helper.h
 * MegEngine is Licensed under the Apache License, Version 2.0 (the "License")
 *
 * Copyright (c) 2014-2021 Megvii Inc. All rights reserved.
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT ARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 */

#pragma once

#include <memory>
#include <mutex>

#include "megbrain/comp_node.h"
#include "megbrain/opr/group_manager.h"
#include "megray.h"

namespace mgb {
namespace opr {

MegRay::DType get_megray_dtype(megdnn::DType);

MegRay::Backend get_megray_backend(const std::string& backend);

std::shared_ptr<MegRay::Context> get_megray_context(CompNode comp_node);

/*!
 * gather MegRay unique ids and build communicator, use hash for deduplication
 */
class MegRayCommBuilder {
private:
    bool find(uint64_t hash, std::shared_ptr<MegRay::Communicator>& comm);
    void emplace(uint64_t hash, std::shared_ptr<MegRay::Communicator> comm);

    std::unordered_map<uint64_t, std::shared_ptr<MegRay::Communicator>> m_megray_comms;
    std::mutex m_map_mtx;

    static MegRayCommBuilder* sm_instance;
    static std::mutex sm_instance_mtx;

public:
    static std::shared_ptr<MegRay::Communicator> get_megray_comm(
            uint64_t hash, std::string key, uint32_t size, uint32_t rank,
            MegRay::Backend backend,
            std::shared_ptr<mgb::opr::GroupClient> group_client);
};

}  // namespace opr
}  // namespace mgb

// vim: syntax=cpp.doxygen foldmethod=marker foldmarker=f{{{,f}}}