blob: ed45fab8f1513308f7460a4b6ff79761cf63fb03 [file] [log] [blame]
[[block]]
struct Uniforms {
dimAOuter : u32;
dimInner : u32;
dimBOuter : u32;
};
[[block]]
struct Matrix {
numbers : array<f32>;
};
[[group(0), binding(0)]] var<storage, read> firstMatrix : Matrix;
[[group(0), binding(1)]] var<storage, read> secondMatrix : Matrix;
[[group(0), binding(2)]] var<storage, write> resultMatrix : Matrix;
[[group(0), binding(3)]] var<uniform> uniforms : Uniforms;
fn mm_readA(row : u32, col : u32) -> f32 {
if (((row < uniforms.dimAOuter) && (col < uniforms.dimInner))) {
let result : f32 = firstMatrix.numbers[((row * uniforms.dimInner) + col)];
return result;
}
return 0.0;
}
fn mm_readB(row : u32, col : u32) -> f32 {
if (((row < uniforms.dimInner) && (col < uniforms.dimBOuter))) {
let result : f32 = secondMatrix.numbers[((row * uniforms.dimBOuter) + col)];
return result;
}
return 0.0;
}
fn mm_write(row : u32, col : u32, value : f32) {
if (((row < uniforms.dimAOuter) && (col < uniforms.dimBOuter))) {
let index : u32 = (col + (row * uniforms.dimBOuter));
resultMatrix.numbers[index] = value;
}
}
let RowPerThread : u32 = 4u;
let ColPerThread : u32 = 4u;
let TileAOuter : u32 = 64u;
let TileBOuter : u32 = 64u;
let TileInner : u32 = 64u;
var<workgroup> mm_Asub : array<array<f32, 64>, 64>;
var<workgroup> mm_Bsub : array<array<f32, 64>, 64>;
[[stage(compute), workgroup_size(16, 16, 1)]]
fn main([[builtin(local_invocation_id)]] local_id : vec3<u32>, [[builtin(global_invocation_id)]] global_id : vec3<u32>) {
let tileRow : u32 = (local_id.y * RowPerThread);
let tileCol : u32 = (local_id.x * ColPerThread);
let globalRow : u32 = (global_id.y * RowPerThread);
let globalCol : u32 = (global_id.x * ColPerThread);
let numTiles : u32 = (((uniforms.dimInner - 1u) / TileInner) + 1u);
var acc : array<f32, 16>;
var ACached : f32;
var BCached : array<f32, 4>;
{
var index : u32 = 0u;
loop {
if (!((index < (RowPerThread * ColPerThread)))) {
break;
}
acc[index] = 0.0;
continuing {
index = (index + 1u);
}
}
}
let ColPerThreadA : u32 = (TileInner / 16u);
let tileColA : u32 = (local_id.x * ColPerThreadA);
let RowPerThreadB : u32 = (TileInner / 16u);
let tileRowB : u32 = (local_id.y * RowPerThreadB);
{
var t : u32 = 0u;
loop {
if (!((t < numTiles))) {
break;
}
{
var innerRow : u32 = 0u;
loop {
if (!((innerRow < RowPerThread))) {
break;
}
{
var innerCol : u32 = 0u;
loop {
if (!((innerCol < ColPerThreadA))) {
break;
}
let inputRow : u32 = (tileRow + innerRow);
let inputCol : u32 = (tileColA + innerCol);
mm_Asub[inputRow][inputCol] = mm_readA((globalRow + innerRow), ((t * TileInner) + inputCol));
continuing {
innerCol = (innerCol + 1u);
}
}
}
continuing {
innerRow = (innerRow + 1u);
}
}
}
{
var innerRow : u32 = 0u;
loop {
if (!((innerRow < RowPerThreadB))) {
break;
}
{
var innerCol : u32 = 0u;
loop {
if (!((innerCol < ColPerThread))) {
break;
}
let inputRow : u32 = (tileRowB + innerRow);
let inputCol : u32 = (tileCol + innerCol);
mm_Bsub[innerCol][inputCol] = mm_readB(((t * TileInner) + inputRow), (globalCol + innerCol));
continuing {
innerCol = (innerCol + 1u);
}
}
}
continuing {
innerRow = (innerRow + 1u);
}
}
}
workgroupBarrier();
{
var k : u32 = 0u;
loop {
if (!((k < TileInner))) {
break;
}
{
var inner : u32 = 0u;
loop {
if (!((inner < ColPerThread))) {
break;
}
BCached[inner] = mm_Bsub[k][(tileCol + inner)];
continuing {
inner = (inner + 1u);
}
}
}
{
var innerRow : u32 = 0u;
loop {
if (!((innerRow < RowPerThread))) {
break;
}
ACached = mm_Asub[(tileRow + innerRow)][k];
{
var innerCol : u32 = 0u;
loop {
if (!((innerCol < ColPerThread))) {
break;
}
let index : u32 = ((innerRow * ColPerThread) + innerCol);
acc[index] = (acc[index] + (ACached * BCached[innerCol]));
continuing {
innerCol = (innerCol + 1u);
}
}
}
continuing {
innerRow = (innerRow + 1u);
}
}
}
continuing {
k = (k + 1u);
}
}
}
workgroupBarrier();
continuing {
t = (t + 1u);
}
}
}
{
var innerRow : u32 = 0u;
loop {
if (!((innerRow < RowPerThread))) {
break;
}
{
var innerCol : u32 = 0u;
loop {
if (!((innerCol < ColPerThread))) {
break;
}
let index : u32 = ((innerRow * ColPerThread) + innerCol);
mm_write((globalRow + innerRow), (globalCol + innerCol), acc[index]);
continuing {
innerCol = (innerCol + 1u);
}
}
}
continuing {
innerRow = (innerRow + 1u);
}
}
}
}