1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
export const description = `
Basic command buffer compute tests.
`;
import { makeTestGroup } from '../../../../common/framework/test_group.js';
import { kLimitInfo } from '../../../capability_info.js';
import { GPUTest } from '../../../gpu_test.js';
import { checkElementsEqualGenerated } from '../../../util/check_contents.js';
export const g = makeTestGroup(GPUTest);
const kMaxComputeWorkgroupSize = [
kLimitInfo.maxComputeWorkgroupSizeX.default,
kLimitInfo.maxComputeWorkgroupSizeY.default,
kLimitInfo.maxComputeWorkgroupSizeZ.default,
];
g.test('memcpy').fn(async t => {
const data = new Uint32Array([0x01020304]);
const src = t.makeBufferWithContents(data, GPUBufferUsage.COPY_DST | GPUBufferUsage.STORAGE);
const dst = t.device.createBuffer({
size: 4,
usage: GPUBufferUsage.COPY_SRC | GPUBufferUsage.STORAGE,
});
const pipeline = t.device.createComputePipeline({
layout: 'auto',
compute: {
module: t.device.createShaderModule({
code: `
struct Data {
value : u32
};
@group(0) @binding(0) var<storage, read> src : Data;
@group(0) @binding(1) var<storage, read_write> dst : Data;
@compute @workgroup_size(1) fn main() {
dst.value = src.value;
return;
}
`,
}),
entryPoint: 'main',
},
});
const bg = t.device.createBindGroup({
entries: [
{ binding: 0, resource: { buffer: src, offset: 0, size: 4 } },
{ binding: 1, resource: { buffer: dst, offset: 0, size: 4 } },
],
layout: pipeline.getBindGroupLayout(0),
});
const encoder = t.device.createCommandEncoder();
const pass = encoder.beginComputePass();
pass.setPipeline(pipeline);
pass.setBindGroup(0, bg);
pass.dispatchWorkgroups(1);
pass.end();
t.device.queue.submit([encoder.finish()]);
t.expectGPUBufferValuesEqual(dst, data);
});
g.test('large_dispatch')
.desc(`Test reasonably-sized large dispatches (see also: stress tests).`)
.params(u =>
u
// Reasonably-sized powers of two, and some stranger larger sizes.
.combine('dispatchSize', [
256,
2048,
315,
628,
2179,
kLimitInfo.maxComputeWorkgroupsPerDimension.default,
])
// Test some reasonable workgroup sizes.
.beginSubcases()
// 0 == x axis; 1 == y axis; 2 == z axis.
.combine('largeDimension', [0, 1, 2] as const)
.expand('workgroupSize', p => [1, 2, 8, 32, kMaxComputeWorkgroupSize[p.largeDimension]])
)
.fn(async t => {
// The output storage buffer is filled with this value.
const val = 0x01020304;
const badVal = 0xbaadf00d;
const wgSize = t.params.workgroupSize;
const bufferLength = t.params.dispatchSize * wgSize;
const bufferByteSize = Uint32Array.BYTES_PER_ELEMENT * bufferLength;
const dst = t.device.createBuffer({
size: bufferByteSize,
usage: GPUBufferUsage.COPY_SRC | GPUBufferUsage.STORAGE,
});
// Only use one large dimension and workgroup size in the dispatch
// call to keep the size of the test reasonable.
const dims = [1, 1, 1];
dims[t.params.largeDimension] = t.params.dispatchSize;
const wgSizes = [1, 1, 1];
wgSizes[t.params.largeDimension] = t.params.workgroupSize;
const pipeline = t.device.createComputePipeline({
layout: 'auto',
compute: {
module: t.device.createShaderModule({
code: `
struct OutputBuffer {
value : array<u32>
};
@group(0) @binding(0) var<storage, read_write> dst : OutputBuffer;
@compute @workgroup_size(${wgSizes[0]}, ${wgSizes[1]}, ${wgSizes[2]})
fn main(
@builtin(global_invocation_id) GlobalInvocationID : vec3<u32>
) {
var xExtent : u32 = ${dims[0]}u * ${wgSizes[0]}u;
var yExtent : u32 = ${dims[1]}u * ${wgSizes[1]}u;
var zExtent : u32 = ${dims[2]}u * ${wgSizes[2]}u;
var index : u32 = (
GlobalInvocationID.z * xExtent * yExtent +
GlobalInvocationID.y * xExtent +
GlobalInvocationID.x);
var val : u32 = ${val}u;
// Trivial error checking in the indexing and invocation.
if (GlobalInvocationID.x > xExtent ||
GlobalInvocationID.y > yExtent ||
GlobalInvocationID.z > zExtent) {
val = ${badVal}u;
}
dst.value[index] = val;
}
`,
}),
entryPoint: 'main',
},
});
const bg = t.device.createBindGroup({
entries: [{ binding: 0, resource: { buffer: dst, offset: 0, size: bufferByteSize } }],
layout: pipeline.getBindGroupLayout(0),
});
const encoder = t.device.createCommandEncoder();
const pass = encoder.beginComputePass();
pass.setPipeline(pipeline);
pass.setBindGroup(0, bg);
pass.dispatchWorkgroups(dims[0], dims[1], dims[2]);
pass.end();
t.device.queue.submit([encoder.finish()]);
t.expectGPUBufferValuesPassCheck(dst, a => checkElementsEqualGenerated(a, i => val), {
type: Uint32Array,
typedLength: bufferLength,
});
dst.destroy();
});
|
