92 lines
3.4 KiB
C#
92 lines
3.4 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 System;
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using System.Collections.Concurrent;
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using System.Collections.Generic;
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using System.Diagnostics.CodeAnalysis;
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using System.Runtime.CompilerServices;
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using System.Threading;
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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 ConcurrentCapacityFixedStack<MatrixParallelThread> _threads;
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private static volatile int RemainThreadCount = 0;
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private static readonly object _lock = new();
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private static ThreadPriority _AfterWork = ThreadPriority.Lowest;
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public static bool SupportParallel { 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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private static Queue<IntPtr> LeaderTask { get; set; }
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public static void EndParallel()
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{
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Monitor.Exit(_lock);
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}
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public 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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MatrixParallelFactory.Init();
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if (!SupportParallel)
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{
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IsInitialized = true;
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return;
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}
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int count = Environment.ProcessorCount - 4;
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_threads = new(count);
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for (int i = 0; i < count; i++) {
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_threads.Push(new());
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}
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_awaitingLeaderHandle = new ConcurrentQueue<WaitHandle>();
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IsInitialized = true;
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}
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public static void LaunchParallel(MatrixParallelHandle handle, SleepMode afterWork)
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{
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RemainThreadCount = _threads.Count;
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_AfterWork = (ThreadPriority)afterWork;
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foreach (MatrixParallelWrap w in handle.Wraps) {
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w.SchedulerReset.Set();
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}
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}
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}
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} |