[Mlir-commits] [mlir] 2a6b521 - [mlir][sparse] Add more tests and verification for n:m (#81186)
llvmlistbot at llvm.org
llvmlistbot at llvm.org
Fri Feb 9 11:34:41 PST 2024
Author: Yinying Li
Date: 2024-02-09T14:34:36-05:00
New Revision: 2a6b521b36fb538a49564323ecd457d7b08b1325
URL: https://github.com/llvm/llvm-project/commit/2a6b521b36fb538a49564323ecd457d7b08b1325
DIFF: https://github.com/llvm/llvm-project/commit/2a6b521b36fb538a49564323ecd457d7b08b1325.diff
LOG: [mlir][sparse] Add more tests and verification for n:m (#81186)
1. Add python test for n out of m
2. Add more methods for python binding
3. Add verification for n:m and invalid encoding tests
4. Add e2e test for n:m
Previous PRs for n:m #80501 #79935
Added:
Modified:
mlir/include/mlir-c/Dialect/SparseTensor.h
mlir/lib/Bindings/Python/DialectSparseTensor.cpp
mlir/lib/CAPI/Dialect/SparseTensor.cpp
mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.cpp
mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.h
mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp
mlir/test/Dialect/SparseTensor/invalid_encoding.mlir
mlir/test/Integration/Dialect/SparseTensor/CPU/sparse_ds.mlir
mlir/test/python/dialects/sparse_tensor/dialect.py
Removed:
################################################################################
diff --git a/mlir/include/mlir-c/Dialect/SparseTensor.h b/mlir/include/mlir-c/Dialect/SparseTensor.h
index 2c71b0008ad16a..d549f5dddc1318 100644
--- a/mlir/include/mlir-c/Dialect/SparseTensor.h
+++ b/mlir/include/mlir-c/Dialect/SparseTensor.h
@@ -84,6 +84,16 @@ mlirSparseTensorEncodingAttrGetPosWidth(MlirAttribute attr);
MLIR_CAPI_EXPORTED int
mlirSparseTensorEncodingAttrGetCrdWidth(MlirAttribute attr);
+MLIR_CAPI_EXPORTED unsigned
+mlirSparseTensorEncodingAttrGetStructuredN(MlirSparseTensorLevelType lvlType);
+
+MLIR_CAPI_EXPORTED unsigned
+mlirSparseTensorEncodingAttrGetStructuredM(MlirSparseTensorLevelType lvlType);
+
+MLIR_CAPI_EXPORTED MlirSparseTensorLevelType
+mlirSparseTensorEncodingAttrBuildLvlType(
+ enum MlirBaseSparseTensorLevelType lvlType, unsigned n, unsigned m);
+
#ifdef __cplusplus
}
#endif
diff --git a/mlir/lib/Bindings/Python/DialectSparseTensor.cpp b/mlir/lib/Bindings/Python/DialectSparseTensor.cpp
index 607534c6156439..74f4d2413a6993 100644
--- a/mlir/lib/Bindings/Python/DialectSparseTensor.cpp
+++ b/mlir/lib/Bindings/Python/DialectSparseTensor.cpp
@@ -60,6 +60,15 @@ static void populateDialectSparseTensorSubmodule(const py::module &m) {
py::arg("lvl_to_dim"), py::arg("pos_width"), py::arg("crd_width"),
py::arg("context") = py::none(),
"Gets a sparse_tensor.encoding from parameters.")
+ .def_classmethod(
+ "build_level_type",
+ [](py::object cls, MlirBaseSparseTensorLevelType lvlType, unsigned n,
+ unsigned m) {
+ return mlirSparseTensorEncodingAttrBuildLvlType(lvlType, n, m);
+ },
+ py::arg("cls"), py::arg("lvl_type"), py::arg("n") = 0,
+ py::arg("m") = 0,
+ "Builds a sparse_tensor.encoding.level_type from parameters.")
.def_property_readonly(
"lvl_types",
[](MlirAttribute self) {
@@ -89,7 +98,34 @@ static void populateDialectSparseTensorSubmodule(const py::module &m) {
.def_property_readonly("pos_width",
mlirSparseTensorEncodingAttrGetPosWidth)
.def_property_readonly("crd_width",
- mlirSparseTensorEncodingAttrGetCrdWidth);
+ mlirSparseTensorEncodingAttrGetCrdWidth)
+ .def_property_readonly(
+ "structured_n",
+ [](MlirAttribute self) -> unsigned {
+ const int lvlRank = mlirSparseTensorEncodingGetLvlRank(self);
+ return mlirSparseTensorEncodingAttrGetStructuredN(
+ mlirSparseTensorEncodingAttrGetLvlType(self, lvlRank - 1));
+ })
+ .def_property_readonly(
+ "structured_m",
+ [](MlirAttribute self) -> unsigned {
+ const int lvlRank = mlirSparseTensorEncodingGetLvlRank(self);
+ return mlirSparseTensorEncodingAttrGetStructuredM(
+ mlirSparseTensorEncodingAttrGetLvlType(self, lvlRank - 1));
+ })
+ .def_property_readonly("lvl_types_enum", [](MlirAttribute self) {
+ const int lvlRank = mlirSparseTensorEncodingGetLvlRank(self);
+ std::vector<MlirBaseSparseTensorLevelType> ret;
+ ret.reserve(lvlRank);
+ for (int l = 0; l < lvlRank; l++) {
+ // Convert level type to 32 bits to ignore n and m for n_out_of_m
+ // format.
+ ret.push_back(
+ static_cast<MlirBaseSparseTensorLevelType>(static_cast<uint32_t>(
+ mlirSparseTensorEncodingAttrGetLvlType(self, l))));
+ }
+ return ret;
+ });
}
PYBIND11_MODULE(_mlirDialectsSparseTensor, m) {
diff --git a/mlir/lib/CAPI/Dialect/SparseTensor.cpp b/mlir/lib/CAPI/Dialect/SparseTensor.cpp
index a34b9a29b0e90a..4e1bd45863fdac 100644
--- a/mlir/lib/CAPI/Dialect/SparseTensor.cpp
+++ b/mlir/lib/CAPI/Dialect/SparseTensor.cpp
@@ -94,3 +94,21 @@ int mlirSparseTensorEncodingAttrGetPosWidth(MlirAttribute attr) {
int mlirSparseTensorEncodingAttrGetCrdWidth(MlirAttribute attr) {
return cast<SparseTensorEncodingAttr>(unwrap(attr)).getCrdWidth();
}
+
+MlirSparseTensorLevelType
+mlirSparseTensorEncodingAttrBuildLvlType(MlirBaseSparseTensorLevelType lvlType,
+ unsigned n, unsigned m) {
+ LevelType lt = static_cast<LevelType>(lvlType);
+ return static_cast<MlirSparseTensorLevelType>(*buildLevelType(
+ *getLevelFormat(lt), isOrderedLT(lt), isUniqueLT(lt), n, m));
+}
+
+unsigned
+mlirSparseTensorEncodingAttrGetStructuredN(MlirSparseTensorLevelType lvlType) {
+ return getN(static_cast<LevelType>(lvlType));
+}
+
+unsigned
+mlirSparseTensorEncodingAttrGetStructuredM(MlirSparseTensorLevelType lvlType) {
+ return getM(static_cast<LevelType>(lvlType));
+}
diff --git a/mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.cpp b/mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.cpp
index 752d6e6481dfee..0fb0d2761054b5 100644
--- a/mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.cpp
+++ b/mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.cpp
@@ -35,14 +35,22 @@ FailureOr<uint64_t> LvlTypeParser::parseLvlType(AsmParser &parser) const {
ERROR_IF(failed(parser.parseOptionalKeyword(&base)),
"expected valid level format (e.g. dense, compressed or singleton)")
uint64_t properties = 0;
- SmallVector<unsigned> structure;
+ SmallVector<unsigned> structured;
if (base.compare("structured") == 0) {
ParseResult res = parser.parseCommaSeparatedList(
mlir::OpAsmParser::Delimiter::OptionalSquare,
- [&]() -> ParseResult { return parseStructure(parser, &structure); },
- " in block n out of m");
+ [&]() -> ParseResult { return parseStructured(parser, &structured); },
+ " in structured n out of m");
FAILURE_IF_FAILED(res)
+ if (structured.size() != 2) {
+ parser.emitError(loc, "expected exactly 2 structured sizes");
+ return failure();
+ }
+ if (structured[0] > structured[1]) {
+ parser.emitError(loc, "expected n <= m in n_out_of_m");
+ return failure();
+ }
}
ParseResult res = parser.parseCommaSeparatedList(
@@ -57,12 +65,8 @@ FailureOr<uint64_t> LvlTypeParser::parseLvlType(AsmParser &parser) const {
} else if (base.compare("compressed") == 0) {
properties |= static_cast<uint64_t>(LevelFormat::Compressed);
} else if (base.compare("structured") == 0) {
- if (structure.size() != 2) {
- parser.emitError(loc, "expected exactly 2 structure sizes");
- return failure();
- }
properties |= static_cast<uint64_t>(LevelFormat::NOutOfM);
- properties |= nToBits(structure[0]) | mToBits(structure[1]);
+ properties |= nToBits(structured[0]) | mToBits(structured[1]);
} else if (base.compare("loose_compressed") == 0) {
properties |= static_cast<uint64_t>(LevelFormat::LooseCompressed);
} else if (base.compare("singleton") == 0) {
@@ -95,20 +99,24 @@ ParseResult LvlTypeParser::parseProperty(AsmParser &parser,
}
ParseResult
-LvlTypeParser::parseStructure(AsmParser &parser,
- SmallVector<unsigned> *structure) const {
+LvlTypeParser::parseStructured(AsmParser &parser,
+ SmallVector<unsigned> *structured) const {
int intVal;
auto loc = parser.getCurrentLocation();
OptionalParseResult intValParseResult = parser.parseOptionalInteger(intVal);
if (intValParseResult.has_value()) {
if (failed(*intValParseResult)) {
- parser.emitError(loc, "failed to parse block size");
+ parser.emitError(loc, "failed to parse structured size");
+ return failure();
+ }
+ if (intVal < 0) {
+ parser.emitError(loc, "expected structured size to be >= 0");
return failure();
}
- structure->push_back(intVal);
+ structured->push_back(intVal);
return success();
}
- parser.emitError(loc, "expected valid integer for block size");
+ parser.emitError(loc, "expected valid integer for structured size");
return failure();
}
diff --git a/mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.h b/mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.h
index 6a13112195d440..1ac8254454ecf2 100644
--- a/mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.h
+++ b/mlir/lib/Dialect/SparseTensor/IR/Detail/LvlTypeParser.h
@@ -22,8 +22,8 @@ class LvlTypeParser {
private:
ParseResult parseProperty(AsmParser &parser, uint64_t *properties) const;
- ParseResult parseStructure(AsmParser &parser,
- SmallVector<unsigned> *structure) const;
+ ParseResult parseStructured(AsmParser &parser,
+ SmallVector<unsigned> *structured) const;
};
} // namespace ir_detail
diff --git a/mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp b/mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp
index 67b1d7974fa259..aed43f26d54f11 100644
--- a/mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp
+++ b/mlir/lib/Dialect/SparseTensor/IR/SparseTensorDialect.cpp
@@ -657,6 +657,37 @@ LogicalResult SparseTensorEncodingAttr::verify(
return emitError() << "expected all singleton lvlTypes "
"following a singleton level";
}
+ // TODO: audit formats that actually are supported by backend.
+ if (auto it = std::find_if(lvlTypes.begin(), lvlTypes.end(), isNOutOfMLT);
+ it != std::end(lvlTypes)) {
+ if (it != lvlTypes.end() - 1)
+ return emitError() << "expected n_out_of_m to be the last level type";
+ if (!std::all_of(lvlTypes.begin(), it,
+ [](LevelType i) { return isDenseLT(i); }))
+ return emitError() << "expected all dense lvlTypes "
+ "before a n_out_of_m level";
+ if (dimToLvl && (dimToLvl.getNumDims() != dimToLvl.getNumResults())) {
+ if (!isBlockSparsity(dimToLvl)) {
+ return emitError()
+ << "expected 1xm block structure for n_out_of_m level";
+ }
+ auto sizes = getBlockSize(dimToLvl);
+ unsigned coefficient = 0;
+ for (const auto &elem : sizes) {
+ if (elem != 0) {
+ if (elem != coefficient && coefficient != 0) {
+ return emitError() << "expected only one blocked level "
+ "with the same coefficients";
+ }
+ coefficient = elem;
+ }
+ }
+ if (coefficient != getM(*it)) {
+ return emitError() << "expected coeffiencts of Affine expressions "
+ "to be equal to m of n_out_of_m level";
+ }
+ }
+ }
// Before we can check that the level-rank is consistent/coherent
// across all fields, we need to define it. The source-of-truth for
// the `getLvlRank` method is the length of the level-types array,
diff --git a/mlir/test/Dialect/SparseTensor/invalid_encoding.mlir b/mlir/test/Dialect/SparseTensor/invalid_encoding.mlir
index 2d189cc94c15e2..a52a46b4fcfe7c 100644
--- a/mlir/test/Dialect/SparseTensor/invalid_encoding.mlir
+++ b/mlir/test/Dialect/SparseTensor/invalid_encoding.mlir
@@ -315,3 +315,109 @@ func.func private @BSR(%arg0: tensor<?x?xf64, #BSR>) {
func.func private @BSR_explicit(%arg0: tensor<?x?xf64, #BSR_explicit>) {
return
}
+
+// -----
+
+// expected-error at +6 {{expected structured size to be >= 0}}
+#NOutOfM = #sparse_tensor.encoding<{
+ map = ( i, j, k ) ->
+ ( i : dense,
+ k floordiv 4 : dense,
+ j : dense,
+ k mod 4 : structured[-2, 4]
+ )
+}>
+func.func private @NOutOfM(%arg0: tensor<?x?x?xf64, #NOutOfM>) {
+ return
+}
+
+// -----
+
+// expected-error at +6 {{expected n <= m in n_out_of_m}}
+#NOutOfM = #sparse_tensor.encoding<{
+ map = ( i, j, k ) ->
+ ( i : dense,
+ k floordiv 4 : dense,
+ j : dense,
+ k mod 4 : structured[5, 4]
+ )
+}>
+func.func private @NOutOfM(%arg0: tensor<?x?x?xf64, #NOutOfM>) {
+ return
+}
+
+// -----
+
+// expected-error at +1 {{expected all dense lvlTypes before a n_out_of_m level}}
+#NOutOfM = #sparse_tensor.encoding<{
+ map = ( i, j, k ) ->
+ ( i : dense,
+ k floordiv 4 : compressed,
+ j : dense,
+ k mod 4 : structured[2, 4]
+ )
+}>
+func.func private @NOutOfM(%arg0: tensor<?x?x?xf64, #NOutOfM>) {
+ return
+}
+
+// -----
+
+// expected-error at +1 {{expected n_out_of_m to be the last level type}}
+#NOutOfM = #sparse_tensor.encoding<{
+ map = ( i, j, k ) ->
+ ( i : dense,
+ k floordiv 4 : structured[2, 4],
+ j : dense,
+ k mod 4 : compressed
+ )
+}>
+func.func private @NOutOfM(%arg0: tensor<?x?x?xf64, #NOutOfM>) {
+ return
+}
+
+// -----
+
+// expected-error at +1 {{expected 1xm block structure for n_out_of_m level}}
+#NOutOfM = #sparse_tensor.encoding<{
+ map = ( i, j, k ) ->
+ ( i : dense,
+ k floordiv 2 : dense,
+ j : dense,
+ k mod 4 : structured[2, 4]
+ )
+}>
+func.func private @NOutOfM(%arg0: tensor<?x?x?xf64, #NOutOfM>) {
+ return
+}
+
+// -----
+
+// expected-error at +1 {{expected coeffiencts of Affine expressions to be equal to m of n_out_of_m level}}
+#NOutOfM = #sparse_tensor.encoding<{
+ map = ( i, j, k ) ->
+ ( i : dense,
+ k floordiv 2 : dense,
+ j : dense,
+ k mod 2 : structured[2, 4]
+ )
+}>
+func.func private @NOutOfM(%arg0: tensor<?x?x?xf64, #NOutOfM>) {
+ return
+}
+
+// -----
+
+// expected-error at +1 {{expected only one blocked level with the same coefficients}}
+#NOutOfM = #sparse_tensor.encoding<{
+ map = ( i, j, k ) ->
+ ( i floordiv 2 : dense,
+ i mod 2 : dense,
+ j : dense,
+ k floordiv 4 : dense,
+ k mod 4 : structured[2, 4]
+ )
+}>
+func.func private @NOutOfM(%arg0: tensor<?x?x?xf64, #NOutOfM>) {
+ return
+}
diff --git a/mlir/test/Integration/Dialect/SparseTensor/CPU/sparse_ds.mlir b/mlir/test/Integration/Dialect/SparseTensor/CPU/sparse_ds.mlir
index ec5c7580657cd7..251944c657cbac 100644
--- a/mlir/test/Integration/Dialect/SparseTensor/CPU/sparse_ds.mlir
+++ b/mlir/test/Integration/Dialect/SparseTensor/CPU/sparse_ds.mlir
@@ -45,6 +45,13 @@
crdWidth = 8
}>
+#NV_58 = #sparse_tensor.encoding<{
+ map = ( i, j ) -> ( i : dense,
+ j floordiv 8 : dense,
+ j mod 8 : structured[5, 8]),
+ crdWidth = 8
+}>
+
module {
func.func private @getTensorFilename(index) -> (!Filename)
@@ -65,6 +72,7 @@ module {
%A1 = sparse_tensor.new %fileName : !Filename to tensor<?x?xf64, #CSR>
%A2 = sparse_tensor.new %fileName : !Filename to tensor<?x?xf64, #CSR_hi>
%A3 = sparse_tensor.new %fileName : !Filename to tensor<?x?xf64, #NV_24>
+ %A4 = sparse_tensor.new %fileName : !Filename to tensor<?x?xf64, #NV_58>
//
// CSR:
@@ -113,10 +121,24 @@ module {
%vecv3 = vector.transfer_read %val3[%c0], %f0 : memref<?xf64>, vector<12xf64>
vector.print %vecv3 : vector<12xf64>
+ //
+ // NV_58
+ //
+ // CHECK-NEXT: ( 2, 3, 5, 7, 1, 2, 4, 7, 0, 2, 4, 5 )
+ // CHECK-NEXT: ( 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12 )
+ //
+ %crd4 = sparse_tensor.coordinates %A4 {level = 2 : index } : tensor<?x?xf64, #NV_58> to memref<?xi8>
+ %vecc4 = vector.transfer_read %crd4[%c0], %u0 : memref<?xi8>, vector<12xi8>
+ vector.print %vecc4 : vector<12xi8>
+ %val4 = sparse_tensor.values %A4 : tensor<?x?xf64, #NV_58> to memref<?xf64>
+ %vecv4 = vector.transfer_read %val4[%c0], %f0 : memref<?xf64>, vector<12xf64>
+ vector.print %vecv4 : vector<12xf64>
+
// Release the resources.
bufferization.dealloc_tensor %A1: tensor<?x?xf64, #CSR>
bufferization.dealloc_tensor %A2: tensor<?x?xf64, #CSR_hi>
bufferization.dealloc_tensor %A3: tensor<?x?xf64, #NV_24>
+ bufferization.dealloc_tensor %A4: tensor<?x?xf64, #NV_58>
return
}
diff --git a/mlir/test/python/dialects/sparse_tensor/dialect.py b/mlir/test/python/dialects/sparse_tensor/dialect.py
index 412c5797067b7a..1fa7030ca1be91 100644
--- a/mlir/test/python/dialects/sparse_tensor/dialect.py
+++ b/mlir/test/python/dialects/sparse_tensor/dialect.py
@@ -52,6 +52,90 @@ def testEncodingAttr1D():
print(f"created_pos_width: {created.pos_width}")
+# CHECK-LABEL: TEST: testEncodingAttrStructure
+ at run
+def testEncodingAttrStructure():
+ with Context() as ctx:
+ parsed = Attribute.parse(
+ "#sparse_tensor.encoding<{"
+ " map = (d0, d1) -> (d0 : dense, d1 floordiv 4 : dense,"
+ " d1 mod 4 : structured[2, 4]),"
+ " posWidth = 16,"
+ " crdWidth = 32"
+ "}>"
+ )
+ # CHECK: #sparse_tensor.encoding<{ map = (d0, d1) -> (d0 : dense, d1 floordiv 4 : dense, d1 mod 4 : structured[2, 4]), posWidth = 16, crdWidth = 32 }>
+ print(parsed)
+
+ casted = st.EncodingAttr(parsed)
+ # CHECK: equal: True
+ print(f"equal: {casted == parsed}")
+
+ # CHECK: lvl_types: [65536, 65536, 4406637494272]
+ print(f"lvl_types: {casted.lvl_types}")
+ # CHECK: lvl_types_enum: [<LevelType.dense: 65536>, <LevelType.dense: 65536>, <LevelType.n_out_of_m: 1048576>]
+ print(f"lvl_types_enum: {casted.lvl_types_enum}")
+ # CHECK: structured_n: 2
+ print(f"structured_n: {casted.structured_n}")
+ # CHECK: structured_m: 4
+ print(f"structured_m: {casted.structured_m}")
+ # CHECK: dim_to_lvl: (d0, d1) -> (d0, d1 floordiv 4, d1 mod 4)
+ print(f"dim_to_lvl: {casted.dim_to_lvl}")
+ # CHECK: lvl_to_dim: (d0, d1, d2) -> (d0, d1 * 4 + d2)
+ print(f"lvl_to_dim: {casted.lvl_to_dim}")
+ # CHECK: pos_width: 16
+ print(f"pos_width: {casted.pos_width}")
+ # CHECK: crd_width: 32
+ print(f"crd_width: {casted.crd_width}")
+
+ created = st.EncodingAttr.get(
+ casted.lvl_types, casted.dim_to_lvl, casted.lvl_to_dim, 0, 0
+ )
+ # CHECK: #sparse_tensor.encoding<{ map = (d0, d1) -> (d0 : dense, d1 floordiv 4 : dense, d1 mod 4 : structured[2, 4]) }>
+ print(created)
+ # CHECK: created_equal: False
+ print(f"created_equal: {created == casted}")
+
+ built_2_4 = st.EncodingAttr.build_level_type(st.LevelType.n_out_of_m, 2, 4)
+ dim_to_lvl = AffineMap.get(
+ 2,
+ 0,
+ [
+ AffineExpr.get_dim(0),
+ AffineExpr.get_floor_div(AffineExpr.get_dim(1), 4),
+ AffineExpr.get_mod(AffineExpr.get_dim(1), 4),
+ ],
+ )
+ lvl_to_dim = AffineMap.get(
+ 3,
+ 0,
+ [
+ AffineExpr.get_dim(0),
+ AffineExpr.get_add(
+ AffineExpr.get_mul(AffineExpr.get_dim(1), 4),
+ AffineExpr.get_dim(2),
+ ),
+ ],
+ )
+ built = st.EncodingAttr.get(
+ [st.LevelType.dense, st.LevelType.dense, built_2_4],
+ dim_to_lvl,
+ lvl_to_dim,
+ 0,
+ 0,
+ )
+ # CHECK: #sparse_tensor.encoding<{ map = (d0, d1) -> (d0 : dense, d1 floordiv 4 : dense, d1 mod 4 : structured[2, 4]) }>
+ print(built)
+ # CHECK: built_equal: True
+ print(f"built_equal: {built == created}")
+
+ # Verify that the factory creates an instance of the proper type.
+ # CHECK: is_proper_instance: True
+ print(f"is_proper_instance: {isinstance(created, st.EncodingAttr)}")
+ # CHECK: created_pos_width: 0
+ print(f"created_pos_width: {created.pos_width}")
+
+
# CHECK-LABEL: TEST: testEncodingAttr2D
@run
def testEncodingAttr2D():
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