!8286 disable somas when variable_memory_max_size is set

Merge pull request !8286 from laiyongqiang/context_somas

mindspore/ccsrc/runtime/device/kernel_runtime.cc

@@ -675,13 +675,16 @@ void KernelRuntime::AssignDynamicMemory(session::KernelGraph *graph) {
 
   if (is_enable_mem_reuse) {
     MS_LOG(INFO) << "Memory Reuse is enable...";
-#ifdef MEM_REUSE_DEBUG
-    mem_manager_->MallocReusedDynamicMem(graph);
-    mem_type = kReuseDynamicMem;
-#else
-    mem_manager_->MallocSomasDynamicMem(graph);
-    mem_type = kSomasReuseDynamicMem;
-#endif
+    auto context = MsContext::GetInstance();
+    MS_EXCEPTION_IF_NULL(context);
+    auto variable_memory_max_size = context->get_param<std::string>(MS_CTX_VARIABLE_MEMORY_MAX_SIZE);
+    if (variable_memory_max_size == "0") {
+      mem_manager_->MallocSomasDynamicMem(graph);
+      mem_type = kSomasReuseDynamicMem;
+    } else {
+      mem_manager_->MallocReusedDynamicMem(graph);
+      mem_type = kReuseDynamicMem;
+    }
   } else {
     MS_LOG(INFO) << "Memory Reuse is disable...";
   }

model_zoo/official/nlp/bert_thor/run_pretrain.py

@@ -145,7 +145,6 @@ def run_pretrain():
     context.set_context(mode=context.GRAPH_MODE, device_target=args_opt.device_target,
                         device_id=args_opt.device_id, save_graphs=False)
     context.set_context(reserve_class_name_in_scope=False)
-    context.set_context(variable_memory_max_size="30GB")
     context.set_context(max_call_depth=3000)
     ckpt_save_dir = args_opt.save_checkpoint_path
     if args_opt.distribute == "true":

model_zoo/official/nlp/tinybert/run_general_distill.py

@@ -70,7 +70,6 @@ def run_general_distill():
         raise Exception("Target error, GPU or Ascend is supported.")
 
     context.set_context(reserve_class_name_in_scope=False)
-    context.set_context(variable_memory_max_size="30GB")
 
     save_ckpt_dir = os.path.join(args_opt.save_ckpt_path,
                                  datetime.datetime.now().strftime('%Y-%m-%d_time_%H_%M_%S'))