135 lines
5.1 KiB
C#
135 lines
5.1 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="MatrixParallel"
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// Project: StgSharp
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// AuthorGroup: Nitload
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// Copyright (c) Nitload. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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//
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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using StgSharp.Collections;
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using StgSharp.Internal;
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using StgSharp.Mathematics.Internal;
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using StgSharp.Mathematics.Internal;
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using StgSharp.Mathematics.Memory;
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using System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.CompilerServices;
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using System.Runtime.InteropServices;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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namespace StgSharp.Mathematics.Numeric
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{
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public static partial class MatrixParallel
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{
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private static bool _meaningful;
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private static CapacityFixedStack<MatrixParallelThread> _threads;
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private static ConcurrentDictionary<SIMDID, nint> contextMap;
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private static SlabAllocator<IntrinsicContext> contextAllocator;
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public static bool IsParallelSupported { get; } = Environment.ProcessorCount > 6;
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public static bool IsParallelMeaningful => Environment.ProcessorCount > 6 && IsInitialized;
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private static bool IsInitialized { get; set; } = false;
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internal static unsafe IntrinsicContext* GetContext(
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SIMDID simd
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)
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{
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if (!IsParallelSupported) {
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return null;
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}
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if (contextMap.TryGetValue(simd, out nint handle))
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{
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return (IntrinsicContext*)handle;
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} else
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{
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IntrinsicContext* context = (IntrinsicContext*)contextAllocator.Allocate();
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return context;
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}
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}
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internal static void Init()
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{
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if (IsInitialized) {
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return;
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}
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if (!IsParallelSupported)
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{
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IsInitialized = true;
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return;
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}
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MatrixParallelFactory.Init();
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contextAllocator = SlabAllocator<IntrinsicContext>.Create(4, SlabBufferLayout.Chunked, false);
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contextMap = [];
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int count = Environment.ProcessorCount;
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_threads = new(count);
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for (int i = 0; i < count; i++)
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{
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MatrixParallelThread thread = new MatrixParallelThread(i);
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_threads.Push(thread);
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SpinWait.SpinUntil(() => thread.State == MatrixThreadState.Ready);
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}
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// TODO 构建全局的保底上下文
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foreach (MatrixParallelThread thread in _threads) { }
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if (contextMap.Keys.Count == 1)
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{
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for (int i = 0; i < 4; i++)
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{
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MatrixParallelThread thread = _threads.Pop();
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thread.Dispose();
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}
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} else
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{
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// TODO 排序并丢弃四个能力最弱线程
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}
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_awaitingLeaderHandle = new AwaitingQueue();
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IsInitialized = true;
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}
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[LibraryImport(Native.LibName, EntryPoint = "sn_compare_simd")]
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[UnmanagedCallConv(CallConvs = [typeof(CallConvCdecl)])]
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private static unsafe partial ulong CompareSIMDID(
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IntrinsicContext* context,
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ulong id
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);
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[LibraryImport(Native.LibName, EntryPoint = "load_intrinsic_function")]
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[UnmanagedCallConv(CallConvs = [typeof(CallConvCdecl)])]
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private static unsafe partial void LoadIntrinsicFunction(
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IntrinsicContext* context,
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ulong id
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);
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}
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}
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