diff --git a/python/mscclpp/__main__.py b/python/mscclpp/__main__.py
index 3a8f739e..70e2fad8 100644
--- a/python/mscclpp/__main__.py
+++ b/python/mscclpp/__main__.py
@@ -74,6 +74,27 @@ default_algo_configs = [
         ),
         "additional_kwargs": {"thread_block_group_size": 8},
     },
+    {
+        "filename": "allreduce_8nodes_1K_8M.json",
+        "function": def_algo.allreduce_multi_nodes,
+        "spec": AlgoSpec(
+            name="allreduce_8nodes_1K_8M",
+            collective=AllReduce(64, 1, True),
+            nranks_per_node=8,
+            world_size=64,
+            in_place=True,
+            instances=1,
+            protocol="LL",
+            auto_sync=False,
+            num_threads_per_block=1024,
+            reuse_resources=True,
+            use_double_scratch_buffer=True,
+            min_message_size=1 << 10,
+            max_message_size=8 << 20,
+            tags={"default": 1},
+        ),
+        "additional_kwargs": {"thread_block_group_size": 1},
+    },
 ]
 
 
diff --git a/src/ext/collectives/algorithm_collection_builder.cc b/src/ext/collectives/algorithm_collection_builder.cc
index 701e5be2..b7729a79 100644
--- a/src/ext/collectives/algorithm_collection_builder.cc
+++ b/src/ext/collectives/algorithm_collection_builder.cc
@@ -114,7 +114,8 @@ AlgorithmCollection AlgorithmCollectionBuilder::buildDefaultDslAlgorithms(int ra
   static const std::vector<DslAlgoConfig> defaultAlgoConfigs = {
       {"allreduce_2nodes_1K_64K.json", "allreduce", 8, 16, {{"default", 1}}},
       {"allreduce_2nodes_128K_2M.json", "allreduce", 8, 16, {{"default", 1}}},
-      {"allreduce_4nodes_1K_8M.json", "allreduce", 8, 32, {{"default", 1}}}};
+      {"allreduce_4nodes_1K_8M.json", "allreduce", 8, 32, {{"default", 1}}},
+      {"allreduce_8nodes_1K_8M.json", "allreduce", 8, 64, {{"default", 1}}}};
   AlgorithmCollection collection;
 
   static auto generateFileId = [](const std::string& input) {