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"domain": "ai.onnx",
"name": "Less",
"sinceVersion": 13,
"inputs": { "a": { "onnx": "A", "dtype": "T" }, "b": { "onnx": "B", "dtype": "T" } },
"outputs": {
"c": { "onnx": "C", "dtype": "B", "rank": "max(ranks.a, ranks.b)", "shape": "broadcastShape(shapes.a, shapes.b)" }
},
"typeConstraints": { "T": ["float32", "float16", "int32", "int16", "uint32", "int8", "uint8"], "B": ["bool"] },
"tunables": { "WORKGROUP_SIZE": { "default": 256 } },
"variants": [
{
"id": "same_shape_vec4",
"priority": 20,
"when": ["sameShape(shapes.a, shapes.c)", "sameShape(shapes.b, shapes.c)", "numel(shapes.c) > 0", "numel(shapes.c) % 4 == 0", "f16Ok(dtypes.T)"],
"derive": { "vectorScalar": "\"vec4<\" ~ dtypes.T ~ \">\"" },
"passes": [
{
"id": "main",
"name": "Less.Vec4",
"shader": "compare-vec4.wgsl.jinja",
"derive": {
"op": "\"less\"",
"vec4PerThread": "4 if numel(shapes.c) * dtypeBytes(tensorDtypes.c) <= 16777216 else 1"
},
"bindings": ["a", "b", "c", "params"],
"dispatch": {
"x": "min(ceilDiv((ceilDiv(numel(shapes.c) / 4, 4 if numel(shapes.c) * dtypeBytes(tensorDtypes.c) <= 16777216 else 1)), (tunables.WORKGROUP_SIZE)), 65535)",
"y": "ceilDiv(ceilDiv((ceilDiv(numel(shapes.c) / 4, 4 if numel(shapes.c) * dtypeBytes(tensorDtypes.c) <= 16777216 else 1)), (tunables.WORKGROUP_SIZE)), 65535)",
"z": 1
}
}
]
},
{
"id": "scalar_b_vec4",
"priority": 18,
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"derive": { "vectorScalar": "\"vec4<\" ~ dtypes.T ~ \">\"", "scalar": "dtypes.T" },
"passes": [
{
"id": "main",
"name": "Less.ScalarBVec4",
"shader": "compare-vec4.wgsl.jinja",
"derive": {
"op": "\"less\"",
"scalarOperand": "\"b\"",
"vec4PerThread": "4 if numel(shapes.c) * dtypeBytes(tensorDtypes.c) <= 16777216 else 1"
},
"bindings": ["a", "b_scalar", "c", "params"],
"dispatch": {
"x": "min(ceilDiv((ceilDiv(numel(shapes.c) / 4, 4 if numel(shapes.c) * dtypeBytes(tensorDtypes.c) <= 16777216 else 1)), (tunables.WORKGROUP_SIZE)), 65535)",
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"z": 1
}
}
]
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{
"id": "scalar_a_vec4",
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"derive": { "vectorScalar": "\"vec4<\" ~ dtypes.T ~ \">\"", "scalar": "dtypes.T" },
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{
"id": "main",
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"derive": {
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},
"bindings": ["a_scalar", "b", "c", "params"],
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{
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"derive": { "scalar": "dtypes.T" },
"passes": [
{
"id": "main",
"name": "Less",
"shader": "compare-broadcast-vec4.wgsl.jinja",
"derive": {
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"bShape": "shapes.b",
"cShape": "shapes.c",
"aRank": "ranks.a",
"bRank": "ranks.b",
"cRank": "ranks.c",
"op": "\"less\""
},
"bindings": ["a_scalar", "b_scalar", "c", "params"],
"dispatch": {
"x": "min(ceilDiv((numel(shapes.c) / 4), (tunables.WORKGROUP_SIZE)), min(device.limits.maxComputeWorkgroupsPerDimension, 65535))",
"y": 1,
"z": 1
}
}
]
},
{
"id": "broadcast",
"when": ["ranks.a <= ranks.c", "ranks.b <= ranks.c", "f16Ok(dtypes.T)"],
"derive": { "scalar": "dtypes.T" },
"passes": [
{
"id": "main",
"name": "Less",
"shader": "compare-broadcast.wgsl.jinja",
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"bShape": "shapes.b",
"cShape": "shapes.c",
"aRank": "ranks.a",
"bRank": "ranks.b",
"cRank": "ranks.c",
"op": "\"less\"",
"itemsPerInvocation": 4
},
"bindings": ["a_scalar", "b_scalar", "c_u32", "params_count"],
"dispatch": {
"x": "min(ceilDiv((ceilDiv(numel(shapes.c), 4)), (tunables.WORKGROUP_SIZE)), 65535)",
"y": "ceilDiv(ceilDiv((ceilDiv(numel(shapes.c), 4)), (tunables.WORKGROUP_SIZE)), 65535)",
"z": 1
}
}
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"bindings": {
"a": { "elementType": "$vectorScalar" },
"b": { "elementType": "$vectorScalar" },
"c": { "elementType": "vec4<u32>" },
"params": { "struct": [{ "name": "count", "type": "u32", "value": "numel(shapes.c) / 4" }] },
"b_scalar": { "name": "b", "elementType": "$scalar" },
"a_scalar": { "name": "a", "elementType": "$scalar" },
"c_u32": { "name": "c", "elementType": "u32" },
"params_count": { "name": "params", "struct": [{ "name": "count", "type": "u32", "value": "numel(shapes.c)" }] }
}
}
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