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"domain": "com.microsoft",
"name": "MRotaryEmbedding",
"sinceVersion": 1,
"inputs": {
"x": { "onnx": "input", "dtype": "T" },
"positionIds": { "onnx": "position_ids", "dtype": "M", "rank": 3, "storage": "int32", "narrowing": "saturating" },
"cos": { "onnx": "cos_cache", "dtype": "T", "rank": 2 },
"sin": { "onnx": "sin_cache", "dtype": "T", "rank": 2 }
},
"outputs": { "y": { "onnx": "output", "dtype": "T", "rank": "ranks.x", "shape": "shapes.x" } },
"attributes": {
"interleaved": { "default": 0 },
"is_packed_batching": { "default": 0 },
"mrope_layout": { "default": 0 },
"num_heads": { "default": 0 },
"rotary_embedding_dim": { "default": 0 },
"scale": { "default": 1 },
"mrope_section": {}
},
"attributeConstraints": {
"interleaved": { "values": [0, 1] },
"is_packed_batching": { "values": [0] },
"mrope_layout": { "values": [0, 1] },
"mrope_section": { "required": true }
},
"typeConstraints": { "T": ["float32", "float16"], "M": ["int64"] },
"tunables": { "WORKGROUP_SIZE": { "default": 256 } },
"derive": {
"rank3HeadSize": "dim(shapes.x, 2) / attrs.num_heads if attrs.num_heads is defined and attrs.num_heads > 0 else 0",
"headSize": "rank3HeadSize if ranks.x == 3 else dim(shapes.x, 3)",
"effectiveRotaryDim": "attrs.rotary_embedding_dim if attrs.rotary_embedding_dim != 0 else headSize",
"tasksPerHead": "ceilDiv(headSize, 2)",
"pairCount": "(numel(shapes.x) / max(1, headSize)) * tasksPerHead",
"pairDispatchOk": "ceilDiv(pairCount, tunables.WORKGROUP_SIZE) <= min(device.limits.maxComputeWorkgroupsPerDimension, 65535) * min(device.limits.maxComputeWorkgroupsPerDimension, 65535)",
"halfRotaryDim": "dim(shapes.cos, 1)",
"sectionsDefined": "attrs.mrope_section is defined and (attrs.mrope_section | length) == 3",
"sectionsValid": "sectionsDefined and attrs.mrope_section[0] >= 0 and attrs.mrope_section[1] >= 0 and attrs.mrope_section[2] >= 0 and attrs.mrope_section[0] + attrs.mrope_section[1] + attrs.mrope_section[2] == halfRotaryDim",
"commonContract": "f16Ok(dtypes.T) and sameShape(shapes.x, shapes.y) and (attrs.interleaved == 0 or attrs.interleaved == 1) and (attrs.mrope_layout == 0 or attrs.mrope_layout == 1) and attrs.num_heads >= 0 and attrs.rotary_embedding_dim >= 0 and (attrs.rotary_embedding_dim == 0 or attrs.num_heads > 0) and sameShape(shapes.cos, shapes.sin) and ranks.cos == 2 and ranks.sin == 2 and sectionsValid and ranks.positionIds == 3 and dim(shapes.positionIds, 0) == 3 and dim(shapes.positionIds, 1) == dim(shapes.x, 0) and dim(shapes.positionIds, 2) == dim(shapes.x, 1 if ranks.x == 3 else 2)",
"rank3Contract": "commonContract and ranks.x == 3 and ranks.y == 3 and attrs.num_heads is defined and attrs.num_heads >= 1 and dim(shapes.x, 2) % attrs.num_heads == 0 and (rank3HeadSize > 0 or numel(shapes.x) == 0) and effectiveRotaryDim % 2 == 0 and (attrs.rotary_embedding_dim == 0 or attrs.rotary_embedding_dim <= rank3HeadSize) and halfRotaryDim * 2 == effectiveRotaryDim",
"rank4Contract": "commonContract and ranks.x == 4 and ranks.y == 4 and dim(shapes.x, 3) > 0 and effectiveRotaryDim % 2 == 0 and (attrs.rotary_embedding_dim == 0 or attrs.rotary_embedding_dim <= dim(shapes.x, 3)) and halfRotaryDim * 2 == effectiveRotaryDim"
},
"when": ["pairDispatchOk", "rank3Contract or rank4Contract"],
"bindings": {
"x": { "elementType": "$T" },
"position_ids": { "arg": "positionIds", "elementType": "i32" },
"cos_cache": { "arg": "cos", "elementType": "$T" },
"sin_cache": { "arg": "sin", "elementType": "$T" },
"y": { "elementType": "$T" },
"params": {
"struct": [
{ "name": "pairCount", "type": "u32", "value": "pairCount" },
{ "name": "batchSize", "type": "u32", "value": "dim(shapes.x, 0)" },
{ "name": "sequenceLength", "type": "u32", "value": "dim(shapes.x, 1 if ranks.x == 3 else 2)" },
{ "name": "numHeads", "type": "u32", "value": "attrs.num_heads if ranks.x == 3 else dim(shapes.x, 1)" },
{ "name": "headSize", "type": "u32", "value": "headSize" },
{ "name": "rotaryDim", "type": "u32", "value": "halfRotaryDim * 2" },
{ "name": "halfRotaryDim", "type": "u32", "value": "halfRotaryDim" },
{ "name": "section0", "type": "u32", "value": "attrs.mrope_section[0]" },
{ "name": "section1", "type": "u32", "value": "attrs.mrope_section[1]" },
{ "name": "section2", "type": "u32", "value": "attrs.mrope_section[2]" },
{ "name": "scale", "type": "f32", "value": "attrs.scale" },
{ "name": "maxSequenceLength", "type": "u32", "value": "dim(shapes.cos, 0)" }
]
},
"x_vector": { "arg": "x", "name": "x", "elementType": "$vectorScalar" },
"y_vector": { "arg": "y", "name": "y", "elementType": "$vectorScalar" },
"params_vector": {
"struct": [
{ "name": "pairCount", "type": "u32", "value": "pairCount" },
{ "name": "batchSize", "type": "u32", "value": "dim(shapes.x, 0)" },
{ "name": "sequenceLength", "type": "u32", "value": "dim(shapes.x, 1 if ranks.x == 3 else 2)" },
{ "name": "numHeads", "type": "u32", "value": "attrs.num_heads if ranks.x == 3 else dim(shapes.x, 1)" },
{ "name": "headSize", "type": "u32", "value": "headSize" },
{ "name": "halfRotaryDim", "type": "u32", "value": "halfRotaryDim" },
{ "name": "section0", "type": "u32", "value": "attrs.mrope_section[0]" },
{ "name": "section1", "type": "u32", "value": "attrs.mrope_section[1]" },
{ "name": "section2", "type": "u32", "value": "attrs.mrope_section[2]" },
{ "name": "scale", "type": "f32", "value": "attrs.scale" },
{ "name": "maxSequenceLength", "type": "u32", "value": "dim(shapes.cos, 0)" }
],
"name": "params"
}
},
"variants": [
{
"id": "pairs4",
"when": ["headSize % 8 == 0", "effectiveRotaryDim == headSize", "attrs.interleaved == 0"],
"derive": {
"mropeSectioned": "attrs.mrope_layout == 0",
"pairWidth": "4",
"vectorScalar": "\"vec4<\" ~ dtypes.T ~ \">\"",
"scalar": "dtypes.T"
},
"passes": [
{
"id": "main",
"name": "MRotaryEmbedding.Vector",
"shader": "mrotary-embedding-vector.wgsl.jinja",
"derive": { "rank": "ranks.x" },
"bindings": ["x_vector", "position_ids", "cos_cache", "sin_cache", "y_vector", "params_vector"],
"dispatch": {
"x": "min(ceilDiv((pairCount / 4), (tunables.WORKGROUP_SIZE)), 65535)",
"y": "ceilDiv(ceilDiv((pairCount / 4), (tunables.WORKGROUP_SIZE)), 65535)",
"z": 1
}
}
],
"priority": 10
},
{
"id": "pairs",
"derive": {
"interleaved": "attrs.interleaved != 0",
"mropeSectioned": "attrs.mrope_layout == 0",
"scalar": "dtypes.T"
},
"passes": [
{
"id": "main",
"name": "MRotaryEmbedding",
"shader": "mrotary-embedding.wgsl.jinja",
"derive": { "rank": "ranks.x" },
"bindings": ["x", "position_ids", "cos_cache", "sin_cache", "y", "params"],
"dispatch": {
"x": "min(ceilDiv((pairCount), (tunables.WORKGROUP_SIZE)), 65535)",
"y": "ceilDiv(ceilDiv((pairCount), (tunables.WORKGROUP_SIZE)), 65535)",
"z": 1
}
}
]
}
]
}
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