111 lines
4.4 KiB
C#
111 lines
4.4 KiB
C#
//-----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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// file="MatrixParallel.TaskWrapFactory.cs"
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// Project: StgSharp
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// AuthorGroup: Nitload Space
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// Copyright (c) Nitload Space. All rights reserved.
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//
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// Permission is hereby granted, free of charge, to any person
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// obtaining a copy of this software and associated documentation
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// files (the “Software”), to deal in the Software without restriction,
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// including without limitation the rights to use, copy, modify, merge,
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// publish, distribute, sublicense, and/or sell copies of the Software,
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// and to permit persons to whom the Software is furnished to do so,
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// subject to the following conditions:
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//
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// The above copyright notice and
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// this permission notice shall be included in all copies
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// or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED “AS IS”,
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// WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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// INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
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// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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// ARISING FROM, OUT OF OR IN CONNECTION WITH
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// THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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//
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// -----------------------------------------------------------------------
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// -----------------------------------------------------------------------
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using StgSharp.HighPerformance.Memory;
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace StgSharp.Mathematics
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{
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internal static unsafe class MatrixParallelFactory
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{
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private static readonly SlabAllocator<ScalarPacket> _scalarAllocator = SlabAllocator<ScalarPacket>.Create(64, SlabBufferLayout.Chunked, true);
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private static readonly SlabAllocator<MatrixParallelTaskPackage> _wrapAllocator = SlabAllocator<MatrixParallelTaskPackage>.Create(64, SlabBufferLayout.Chunked, true);
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public static ScalarPacket* CreateScalarPacket()
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{
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ScalarPacket* p = (ScalarPacket*)_scalarAllocator.Allocate();
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return p;
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}
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public static MatrixParallelTaskPackage* FromTaskWrap(MatrixParallelTaskPackage* source, int offset)
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{
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MatrixParallelTaskPackage* p = (MatrixParallelTaskPackage*)_wrapAllocator.Allocate();
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/*
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*p = *source;
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p->Left += offset * p->LeftStride;
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p->Right += offset * p->RightStride;
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p->Result += offset * p->ResultStride;
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/**/
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return p;
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}
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public static void Release(ScalarPacket* source)
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{
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_scalarAllocator.Free((nuint)source);
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}
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public static void Release(MatrixParallelTaskPackage* source)
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{
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if (source->Scalar != null) {
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_scalarAllocator.Free((nuint)source->Scalar);
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}
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_wrapAllocator.Free((nuint)source);
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}
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public static void SliceTask(MatrixParallelTaskPackage* source, Span<IntPtr> group)
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{
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int count = group.Length;
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group[0] = (nint)source;
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int l = source->LeftPrimStride, r = source->RightPrimStride, res = source->ResultPrimStride, c = source->PrimCount / count;
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source->LeftPrimStride *= count;
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source->RightPrimStride *= count;
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source->ResultPrimStride *= count;
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source->PrimCount = c;
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int remain = source->PrimCount - (c * count);
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for (int i = 1; i < count; i++)
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{
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nint handle = (nint)_wrapAllocator.Allocate();
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MatrixParallelTaskPackage* p = (MatrixParallelTaskPackage*)handle;
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*p = *source;
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p->Left += l * i;
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p->Right += r * i;
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p->Result += res * i;
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p->PrimCount = c;
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group[i] = handle;
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}
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// Distribute remaining work to the last few tasks
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for (int i = 0; i < remain; i++)
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{
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int targetIndex = count - 1 - i;
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if (targetIndex >= 0) {
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((MatrixParallelTaskPackage*)group[targetIndex])->PrimCount++;
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}
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}
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}
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}
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} |