diff --git a/paddle/fluid/framework/details/memory_optimize_helper.cc b/paddle/fluid/framework/details/memory_optimize_helper.cc index 0d7cbf298118722b8f32ccc5a8016ae5e168700b..c89a33fc959247afb74dab49056fc3fca8b9bd89 100644 --- a/paddle/fluid/framework/details/memory_optimize_helper.cc +++ b/paddle/fluid/framework/details/memory_optimize_helper.cc @@ -20,6 +20,9 @@ #include #include #include +#include +#include +#include "paddle/fluid/framework/operator.h" #include "paddle/fluid/framework/var_desc.h" #include "paddle/fluid/platform/cpu_info.h" @@ -302,7 +305,10 @@ std::string OrderedSet::ToString() const { bool NodeCanReused(ir::Node* node) { // valid the node is a var node - if (node == nullptr || !node->IsVar() || node->IsCtrlVar()) return false; + // vars can be @EMPTY@, @LR_DECAY_REUSE_ID@. For example, while_grad + if (node == nullptr || !node->IsVar() || node->IsCtrlVar() || + node->Name() == kEmptyVarName) + return false; bool flag = true; // op output force generated in cpu, can not be reused. @@ -348,10 +354,6 @@ bool NodeCanReused(const VarDesc& node) { if (shape.empty() || size < MinChunkSize()) { return false; } - // vars can be @EMPTY@, @LR_DECAY_REUSE_ID@. For example, while_grad - std::string name = node.Name(); - if (!name.empty() && name[0] == '@' && name[name.size() - 1] == '@') - return false; return true; }