diff --git a/tests/tt_eager/python_api_testing/unit_testing/misc/test_numcores_to_corerangeset_subcoregrids.py b/tests/tt_eager/python_api_testing/unit_testing/misc/test_num_cores_to_corerangeset_in_subcoregrids.py
similarity index 90%
rename from tests/tt_eager/python_api_testing/unit_testing/misc/test_numcores_to_corerangeset_subcoregrids.py
rename to tests/tt_eager/python_api_testing/unit_testing/misc/test_num_cores_to_corerangeset_in_subcoregrids.py
index f07e6f21230c..0840e55513db 100644
--- a/tests/tt_eager/python_api_testing/unit_testing/misc/test_numcores_to_corerangeset_subcoregrids.py
+++ b/tests/tt_eager/python_api_testing/unit_testing/misc/test_num_cores_to_corerangeset_in_subcoregrids.py
@@ -7,9 +7,9 @@
 
 
 @pytest.mark.parametrize(
-    "start_core, num_cores, subcoregrids, row_wise, expected_core_range_set",
+    "start_core, num_cores, sub_core_grids, row_wise, expected_core_range_set",
     [
-        # Test Case 1: Basic row-wise scenario with enough cores in subcoregrids
+        # Test Case 1: Basic row-wise scenario with enough cores in sub_core_grids
         (
             ttnn.CoreCoord(1, 0),
             32,
@@ -84,8 +84,10 @@
         ),
     ],
 )
-def test_numcores_to_corerangeset(start_core, num_cores, subcoregrids, row_wise, expected_core_range_set):
+def test_numcores_to_corerangeset_in_subcoregrids(
+    start_core, num_cores, sub_core_grids, row_wise, expected_core_range_set
+):
     output_corerangeset = ttnn.num_cores_to_corerangeset_in_subcoregrids(
-        start_core, num_cores, subcoregrids, row_wise=row_wise
+        start_core, num_cores, sub_core_grids, row_wise=row_wise
     )
     assert output_corerangeset.to_json() == expected_core_range_set.to_json()
diff --git a/tt_metal/common/work_split.cpp b/tt_metal/common/work_split.cpp
index 43241801cb21..ba687d9d3dab 100644
--- a/tt_metal/common/work_split.cpp
+++ b/tt_metal/common/work_split.cpp
@@ -151,18 +151,18 @@ CoreRangeSet num_cores_to_corerangeset(
 CoreRangeSet num_cores_to_corerangeset_in_subcoregrids(
     const CoreCoord start_core,
     const uint32_t target_num_cores,
-    const CoreRangeSet subcoregrids,
+    const CoreRangeSet& sub_core_grids,
     const bool row_wise = false) {
     // If target_num_cores is 0 or input_corerangeset is empty, return empty CoreRangeSet
     TT_FATAL(target_num_cores > 0, "Target number of cores must be greater than 0");
     TT_FATAL(
-        target_num_cores <= subcoregrids.num_cores(),
+        target_num_cores <= sub_core_grids.num_cores(),
         "Target number of cores {} is greater than total number of available cores {}",
         target_num_cores,
-        subcoregrids.num_cores());
+        sub_core_grids.num_cores());
 
     // Validate that the start core is contained within the entire CoreRangeSet
-    TT_FATAL(subcoregrids.contains(start_core), "Start core must be contained within the input CoreRangeSet");
+    TT_FATAL(sub_core_grids.contains(start_core), "Start core must be contained within the input CoreRangeSet");
 
     std::vector<CoreRange> result_coreranges;
     bool start_core_found = false;
@@ -241,7 +241,7 @@ CoreRangeSet num_cores_to_corerangeset_in_subcoregrids(
     };
 
     // Iterate over subcoregrids and process based on row_wise
-    for (const auto& subcoregrid : subcoregrids.ranges()) {
+    for (const auto& subcoregrid : sub_core_grids.ranges()) {
         if (subcoregrid.contains(start_core)) {
             start_core_found = true;
         } else {
diff --git a/tt_metal/common/work_split.hpp b/tt_metal/common/work_split.hpp
index 76cc43c77f3e..2b5ae0ecb9d8 100644
--- a/tt_metal/common/work_split.hpp
+++ b/tt_metal/common/work_split.hpp
@@ -43,7 +43,7 @@ CoreRangeSet num_cores_to_corerangeset(
 CoreRangeSet num_cores_to_corerangeset_in_subcoregrids(
     const CoreCoord start_core,
     const uint32_t target_num_cores,
-    const CoreRangeSet subcoregrids,
+    const CoreRangeSet& sub_core_grids,
     const bool row_wise = false);
 // This function takes in the core grid size, as well as the number of units of work to divide between the cores
 // This function returns the number of cores, the CoreRangeSet of all cores, and then the CoreRangeSet that does
diff --git a/ttnn/cpp/pybind11/operations/core.hpp b/ttnn/cpp/pybind11/operations/core.hpp
index e15f29bd9aaa..4aed692974d5 100644
--- a/ttnn/cpp/pybind11/operations/core.hpp
+++ b/ttnn/cpp/pybind11/operations/core.hpp
@@ -351,7 +351,7 @@ void py_module(py::module& module) {
 
     module.def(
         "num_cores_to_corerangeset_in_subcoregrids",
-        py::overload_cast<const CoreCoord, const uint32_t, const CoreRangeSet, const bool>(
+        py::overload_cast<const CoreCoord, const uint32_t, const CoreRangeSet&, const bool>(
             &tt::tt_metal::num_cores_to_corerangeset_in_subcoregrids),
         R"doc(Create a CoreRangeSet containing the specified number of cores starting from start_core in given subcoregrids)doc");
 }
diff --git a/ttnn/ttnn/core.py b/ttnn/ttnn/core.py
index f161af720254..a1879be24f94 100644
--- a/ttnn/ttnn/core.py
+++ b/ttnn/ttnn/core.py
@@ -62,7 +62,7 @@ def num_cores_to_corerangeset(
 def num_cores_to_corerangeset_in_subcoregrids(
     start_core: ttnn.CoreCoord,
     target_num_cores: int,
-    subcoregrids: ttnn.CoreRangeSet,
+    sub_core_grids: ttnn.CoreRangeSet,
     row_wise: bool = False,
 ):
     """
@@ -71,7 +71,7 @@ def num_cores_to_corerangeset_in_subcoregrids(
     return ttnn._ttnn.operations.core.num_cores_to_corerangeset_in_subcoregrids(
         start_core,
         target_num_cores,
-        subcoregrids,
+        sub_core_grids,
         row_wise,
     )