diff --git a/paddle/fluid/operators/optimizers/adam_op.h b/paddle/fluid/operators/optimizers/adam_op.h
index f8c7b82053a113ad9c869a54efe955e81f8b1f66..6b794e0d3e0d0d66132883e954057076e978d600 100644
--- a/paddle/fluid/operators/optimizers/adam_op.h
+++ b/paddle/fluid/operators/optimizers/adam_op.h
@@ -509,6 +509,7 @@ class AdamOpKernel : public framework::OpKernel<T> {
           for (size_t i = 0; i < fs.size(); ++i) fs[i].wait();
         } else {
           if (lazy_mode) {
+            VLOG(3) << "run cpu lazy mode";
             size_t row_count = grad_merge.rows().size();
             std::vector<int64_t> cpu_rows(grad_merge.rows());
             for (size_t row_index = 0; row_index < row_count; ++row_index) {