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
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
|
export const description = `
Tests for non-atomic memory synchronization within a workgroup in the presence of a WebGPU barrier`;
import { makeTestGroup } from '../../../../common/framework/test_group.js';
import { GPUTest } from '../../../gpu_test.js';
import {
MemoryModelTestParams,
MemoryModelTester,
buildTestShader,
MemoryType,
TestType,
buildResultShader,
ResultType,
} from './memory_model_setup.js';
export const g = makeTestGroup(GPUTest);
// A reasonable parameter set, determined heuristically.
const memoryModelTestParams: MemoryModelTestParams = {
workgroupSize: 256,
testingWorkgroups: 512,
maxWorkgroups: 1024,
shufflePct: 100,
barrierPct: 100,
memStressPct: 100,
memStressIterations: 1024,
memStressStoreFirstPct: 50,
memStressStoreSecondPct: 50,
preStressPct: 100,
preStressIterations: 1024,
preStressStoreFirstPct: 50,
preStressStoreSecondPct: 50,
scratchMemorySize: 2048,
stressLineSize: 64,
stressTargetLines: 2,
stressStrategyBalancePct: 50,
permuteFirst: 109,
permuteSecond: 419,
memStride: 4,
aliasedMemory: false,
numBehaviors: 2,
};
const storageMemoryBarrierStoreLoadTestCode = `
test_locations.value[x_0] = 1u;
workgroupBarrier();
let r0 = test_locations.value[x_1];
atomicStore(&results.value[shuffled_workgroup * workgroupXSize + id_1].r0, r0);
`;
const workgroupMemoryBarrierStoreLoadTestCode = `
wg_test_locations[x_0] = 1u;
workgroupBarrier();
let r0 = wg_test_locations[x_1];
atomicStore(&results.value[shuffled_workgroup * workgroupXSize + id_1].r0, r0);
`;
g.test('workgroup_barrier_store_load')
.desc(
`Checks whether the workgroup barrier properly synchronizes a non-atomic write and read on
separate threads in the same workgroup. Within a workgroup, the barrier should force an invocation
after the barrier to read a write from an invocation before the barrier.
`
)
.paramsSimple([
{ memType: MemoryType.NonAtomicStorageClass, _testCode: storageMemoryBarrierStoreLoadTestCode },
{
memType: MemoryType.NonAtomicWorkgroupClass,
_testCode: workgroupMemoryBarrierStoreLoadTestCode,
},
])
.fn(async t => {
const resultCode = `
if (r0 == 1u) {
atomicAdd(&test_results.seq, 1u);
} else if (r0 == 0u) {
atomicAdd(&test_results.weak, 1u);
}
`;
const testShader = buildTestShader(
t.params._testCode,
t.params.memType,
TestType.IntraWorkgroup
);
const resultShader = buildResultShader(
resultCode,
TestType.IntraWorkgroup,
ResultType.TwoBehavior
);
const memModelTester = new MemoryModelTester(
t,
memoryModelTestParams,
testShader,
resultShader
);
await memModelTester.run(15, 1);
});
const storageMemoryBarrierLoadStoreTestCode = `
let r0 = test_locations.value[x_0];
workgroupBarrier();
test_locations.value[x_1] = 1u;
atomicStore(&results.value[shuffled_workgroup * workgroupXSize + id_0].r0, r0);
`;
const workgroupMemoryBarrierLoadStoreTestCode = `
let r0 = wg_test_locations[x_0];
workgroupBarrier();
wg_test_locations[x_1] = 1u;
atomicStore(&results.value[shuffled_workgroup * workgroupXSize + id_0].r0, r0);
`;
g.test('workgroup_barrier_load_store')
.desc(
`Checks whether the workgroup barrier properly synchronizes a non-atomic write and read on
separate threads in the same workgroup. Within a workgroup, the barrier should force an invocation
before the barrier to not read the write from an invocation after the barrier.
`
)
.paramsSimple([
{ memType: MemoryType.NonAtomicStorageClass, _testCode: storageMemoryBarrierLoadStoreTestCode },
{
memType: MemoryType.NonAtomicWorkgroupClass,
_testCode: workgroupMemoryBarrierLoadStoreTestCode,
},
])
.fn(async t => {
const resultCode = `
if (r0 == 0u) {
atomicAdd(&test_results.seq, 1u);
} else if (r0 == 1u) {
atomicAdd(&test_results.weak, 1u);
}
`;
const testShader = buildTestShader(
t.params._testCode,
t.params.memType,
TestType.IntraWorkgroup
);
const resultShader = buildResultShader(
resultCode,
TestType.IntraWorkgroup,
ResultType.TwoBehavior
);
const memModelTester = new MemoryModelTester(
t,
memoryModelTestParams,
testShader,
resultShader
);
await memModelTester.run(12, 1);
});
const storageMemoryBarrierStoreStoreTestCode = `
test_locations.value[x_0] = 1u;
storageBarrier();
test_locations.value[x_1] = 2u;
`;
const workgroupMemoryBarrierStoreStoreTestCode = `
wg_test_locations[x_0] = 1u;
workgroupBarrier();
wg_test_locations[x_1] = 2u;
workgroupBarrier();
test_locations.value[shuffled_workgroup * workgroupXSize * stress_params.mem_stride * 2u + x_1] = wg_test_locations[x_1];
`;
g.test('workgroup_barrier_store_store')
.desc(
`Checks whether the workgroup barrier properly synchronizes non-atomic writes on
separate threads in the same workgroup. Within a workgroup, the barrier should force the value in memory
to be the result of the write after the barrier, not the write before.
`
)
.paramsSimple([
{
memType: MemoryType.NonAtomicStorageClass,
_testCode: storageMemoryBarrierStoreStoreTestCode,
},
{
memType: MemoryType.NonAtomicWorkgroupClass,
_testCode: workgroupMemoryBarrierStoreStoreTestCode,
},
])
.fn(async t => {
const resultCode = `
if (mem_x_0 == 2u) {
atomicAdd(&test_results.seq, 1u);
} else if (mem_x_0 == 1u) {
atomicAdd(&test_results.weak, 1u);
}
`;
const testShader = buildTestShader(
t.params._testCode,
t.params.memType,
TestType.IntraWorkgroup
);
const resultShader = buildResultShader(
resultCode,
TestType.IntraWorkgroup,
ResultType.TwoBehavior
);
const memModelTester = new MemoryModelTester(
t,
memoryModelTestParams,
testShader,
resultShader
);
await memModelTester.run(10, 1);
});
|
