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working on matrix mul matrix

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This commit is contained in:
Youmu Liu
2025-12-10 17:52:17 +08:00
parent 7bcb460a39
commit 631bc2b6e8
8 changed files with 151 additions and 221 deletions
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StgSharp.Common/HighPerformance/MatrixPanel.cs
+67 -203
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@@ -1,4 +1,4 @@
//-----------------------------------------------------------------------
//-----------------------------------------------------------------------
// -----------------------------------------------------------------------
// file="MatrixPanel"
// Project: StgSharp
@@ -25,6 +25,7 @@
//
// -----------------------------------------------------------------------
// -----------------------------------------------------------------------
using StgSharp.Internal;
using System;
using System.Numerics;
using System.Runtime.CompilerServices;
@@ -32,267 +33,130 @@ using System.Runtime.InteropServices;
namespace StgSharp.HighPerformance
{
#pragma warning disable CA1000
public interface IMatrixPanel<T> : IDisposable where T : unmanaged,INumber<T>
public unsafe struct MatrixPanel
{
ref T this[int column, int row] { get; }
static abstract int MaxElementCount { get; }
static abstract int ElementSideLength { get; }
static abstract nuint Size { get; }
void Dispose();
private byte Head;
}
/// <summary>
/// Buffer for SSE targeted matrix panel, size of a panel is 4x4 elements, and no smaller than
/// 16 bytes.
/// </summary>
/// <typeparam name="T">
/// Type of matrix element.
/// </typeparam>
public unsafe struct MatrixPanelSSE<T> : IMatrixPanel<T> where T : unmanaged, INumber<T>
// Single POD-style panel: ZMM-compatible size. Alignment handled by allocator, not by the struct.
public unsafe struct MatrixPanel<T> where T : unmanaged, INumber<T>
{
private T element;
public const int AlignmentBytes = 64;
[Obsolete("Compute kernel should not be created from new(), use Create instead", true)]
public MatrixPanelSSE() { }
internal T Head; // first element of the panel buffer
public ref T this[int column, int row]
{
get
{
int index = row * ElementSideLength + column;
return ref Unsafe.Add(ref element, index);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get => ref Unsafe.Add(ref Head, row * ElementSideLength + column);
}
public static int ElementSideLength
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get;
} = int.Max(4, 16 / sizeof(T));
get => Math.Max(8, AlignmentBytes / sizeof(T));
}
public static int MaxElementCount
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get;
} = ElementSideLength * ElementSideLength;
public static unsafe nuint Size { get; } = (nuint)(MaxElementCount * sizeof(T));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int ChunkCount() => (ElementSideLength + LanesPerVector() - 1) / LanesPerVector();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static MatrixPanelSSE<T>* Create()
{
MatrixPanelSSE<T>* kernel = (MatrixPanelSSE<T>*)NativeMemory.AlignedAlloc(Size, 16);
return kernel;
get => ElementSideLength * ElementSideLength;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Destroy(MatrixPanelSSE<T>* kernel)
public static nuint Size
{
NativeMemory.AlignedFree(kernel);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get => (nuint)(MaxElementCount * sizeof(T));
}
public void Dispose()
{
fixed (MatrixPanelSSE<T>* thisPtr = &this) {
NativeMemory.AlignedFree(thisPtr);
}
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ref M128 GetVectorChunk(int column, int chunk)
{
int lanes = LanesPerVector();
int rowStart = chunk * lanes;
ref T colBase = ref this[column, 0];
return ref Unsafe.As<T, M128>(ref Unsafe.Add(ref colBase, rowStart));
}
// SIMD access helpers (column-major)
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int LanesPerVector() => 16 / sizeof(T);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void SetVectorChunk(int column, int chunk, in M128 value)
{
GetVectorChunk(column, chunk) = value;
}
}
/// <summary>
/// Buffer for AVX targeted matrix panel, size of a panel is 4x4 elements, and no smaller than
/// 16 bytes.
/// </summary>
/// <typeparam name="T">
/// Type of matrix element.
/// </typeparam>
public unsafe struct MatrixPanelAVX<T> : IMatrixPanel<T> where T : unmanaged, INumber<T>
{
private T element;
[Obsolete("Compute kernel should not be created from new(), use Create instead", true)]
public MatrixPanelAVX() { }
public ref T this[int column, int row]
public Span<T> Elements
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get
{
int index = row * ElementSideLength + column;
return ref Unsafe.Add(ref element, index);
ref T first = ref Head;
unsafe
{
void* p = Unsafe.AsPointer(ref first);
return new Span<T>(p, MaxElementCount);
}
}
}
public static int ElementSideLength
// Allocate aligned memory for one panel; caller must free via Destroy.
public static unsafe MatrixPanel<T>* Create()
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get;
} = int.Max(8, 32 / sizeof(T));
public static unsafe int MaxElementCount
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get;
} = ElementSideLength * ElementSideLength;
public static unsafe nuint Size { get; } = (nuint)(MaxElementCount * sizeof(T));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int ChunkCount() => (ElementSideLength + LanesPerVector() - 1) / LanesPerVector();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static MatrixPanelAVX<T>* Create()
{
MatrixPanelAVX<T>* kernel = (MatrixPanelAVX<T>*)NativeMemory.AlignedAlloc(Size, 32);
return kernel;
return (MatrixPanel<T>*)NativeMemory.AlignedAlloc(Size, AlignmentBytes);
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Destroy(MatrixPanelAVX<T>* kernel)
public static unsafe void Destroy(MatrixPanel<T>* panel)
{
NativeMemory.AlignedFree(kernel);
NativeMemory.AlignedFree(panel);
}
public void Dispose()
// View an existing pointer; caller guarantees lifetime/alignment.
public static unsafe MatrixPanel<T>* FromPointer(void* ptr)
{
fixed (MatrixPanelAVX<T>* thisPtr = &this) {
NativeMemory.AlignedFree(thisPtr);
}
return (MatrixPanel<T>*)Align64(ptr);
}
/// <summary>
/// Number of 4x4 kernels that fit in a panel for the given ISA and element T.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ref M256 GetVectorChunk(int column, int chunk)
internal static int KernelCapacity()
{
int lanes = LanesPerVector();
int rowStart = chunk * lanes;
ref T colBase = ref this[column, 0];
return ref Unsafe.As<T, M256>(ref Unsafe.Add(ref colBase, rowStart));
int perSide = KernelSideCount();
return perSide * perSide;
}
// SIMD access helpers for AVX (column-major)
/// <summary>
/// How many 4x4 kernels fit along a single panel dimension for the given ISA.
/// </summary>
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int LanesPerVector() => 32 / sizeof(T);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void SetVectorChunk(int column, int chunk, in M256 value)
internal static int KernelSideCount()
{
GetVectorChunk(column, chunk) = value;
}
}
/// <summary>
/// Buffer for AVX512 targeted matrix panel, size of a panel is 4x4 elements, and no smaller
/// than 16 bytes.
/// </summary>
/// <typeparam name="T">
/// Type of matrix element.
/// </typeparam>
public unsafe struct MatrixComputeKernelAVX512<T> : IMatrixPanel<T>
where T : unmanaged, INumber<T>
{
private T element;
[Obsolete("Compute kernel should not be created from new(), use Create instead", true)]
public MatrixComputeKernelAVX512() { }
public ref T this[int column, int row]
{
get
return NativeIntrinsic.IntrinsicLevel switch
{
int index = row * ElementSideLength + column;
return ref Unsafe.Add(ref element, index);
}
}
public static int ElementSideLength
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get;
} = int.Max(8, 64 / sizeof(T));
public static unsafe int MaxElementCount
{
[MethodImpl(MethodImplOptions.AggressiveInlining)]
get;
} = ElementSideLength * ElementSideLength;
public static unsafe nuint Size { get; } = (nuint)(MaxElementCount * sizeof(T));
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int ChunkCount() => (ElementSideLength + LanesPerVector() - 1) / LanesPerVector();
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static MatrixComputeKernelAVX512<T>* Create()
{
MatrixComputeKernelAVX512<T>* kernel = (MatrixComputeKernelAVX512<T>*)NativeMemory.AlignedAlloc(Size, 64);
return kernel;
IntrinsicLevel.SSE => KernelSideCountSse(),
IntrinsicLevel.AVX2 => KernelSideCountAvx2(),
IntrinsicLevel.AVX512 => KernelSideCountAvx512(),
_ => 0
};
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static void Destroy(MatrixComputeKernelAVX512<T>* kernel)
{
NativeMemory.AlignedFree(kernel);
}
private static unsafe nuint Align64(void* p) => ((nuint)p + (AlignmentBytes - 1)) & ~(nuint)(AlignmentBytes - 1);
public void Dispose()
[MethodImpl(MethodImplOptions.AggressiveInlining)]
private static int KernelSideCountAvx2()
{
fixed (MatrixComputeKernelAVX512<T>* thisPtr = &this) {
NativeMemory.AlignedFree(thisPtr);
}
const int minQ = 8;
int lanes = 32 / sizeof(T);
int side = Math.Max(lanes, minQ);
return side / 4;
}
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public ref M512 GetVectorChunk(int column, int chunk)
private static int KernelSideCountAvx512()
{
int lanes = LanesPerVector();
int rowStart = chunk * lanes;
ref T colBase = ref this[column, 0];
return ref Unsafe.As<T, M512>(ref Unsafe.Add(ref colBase, rowStart));
const int minQ = 8;
int lanes = 64 / sizeof(T);
int side = Math.Max(lanes, minQ);
return side / 4;
}
// SIMD access helpers for AVX-512 (column-major)
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public static int LanesPerVector() => 64 / sizeof(T);
[MethodImpl(MethodImplOptions.AggressiveInlining)]
public void SetVectorChunk(int column, int chunk, in M512 value)
private static int KernelSideCountSse()
{
GetVectorChunk(column, chunk) = value;
const int minQ = 4;
int lanes = 16 / sizeof(T);
int side = Math.Max(lanes, minQ);
return side / 4;
}
#pragma warning restore CA1000
}
}
}