Debug nan (PaddlePaddle#269)

* debug nan * debug nan * skip weight_decay
graphcore · Nov 5, 2021 · b43ebbf · b43ebbf
1 parent 65a734d
commit b43ebbf
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Showing 3 changed files with 18 additions and 14 deletions.
diff --git a/paddle/fluid/framework/ipu/ipu_optimizer.cc b/paddle/fluid/framework/ipu/ipu_optimizer.cc
@@ -56,13 +56,13 @@ float OptmizerMetaInfo::GetLossScaling() const {
 popart::WeightDecayMode OptmizerMetaInfo::GetWeightDecayMode() const {
   if (type_ == OptimizerType::Adam) {
     if (attrs_.count("scale") != 0 && attrs_.at("scale") > 0.0f) {
-      return popart::WeightDecayMode::L2Regularization;
+      return popart::WeightDecayMode::Decay;
     } else {
       return popart::WeightDecayMode::Decay;
     }
   } else if (type_ == OptimizerType::Lamb) {
     if (attrs_.at("weight_decay") > 0.0f) {
-      return popart::WeightDecayMode::L2Regularization;
+      return popart::WeightDecayMode::Decay;
     } else {
       return popart::WeightDecayMode::Decay;
     }
@@ -93,32 +93,32 @@ std::unique_ptr<popart::Optimizer> GetPopartOptimizer(
   if (opt_type == OptimizerType::SGD) {
     auto optimizer = std::make_unique<popart::SGD>(
         popart::OptimizerValue(opt_meta_info.GetLR(), false),
-        popart::OptimizerValue(opt_meta_info.GetWeightDecay(), false),
+        popart::OptimizerValue(opt_meta_info.GetWeightDecay(), true),
         popart::OptimizerValue(popart::SGD::getUnsetMomentum()),
         popart::OptimizerValue(popart::SGD::getUnsetDampening()),
         popart::OptimizerValue(popart::SGD::getUnsetVelocityScaling()),
-        popart::OptimizerValue(opt_meta_info.GetLossScaling(), false));
+        popart::OptimizerValue(opt_meta_info.GetLossScaling(), true));
     return optimizer;
   } else if (opt_type == OptimizerType::Adam) {
     auto optimizer = std::make_unique<popart::Adam>(
         popart::OptimizerValue(opt_meta_info.GetLR(), false),
-        popart::OptimizerValue(opt_meta_info.GetWeightDecay(), false),
-        popart::OptimizerValue(opt_meta_info.GetAttr("beta1"), false),
-        popart::OptimizerValue(opt_meta_info.GetAttr("beta2"), false),
-        popart::OptimizerValue(opt_meta_info.GetAttr("epsilon"), false),
-        popart::OptimizerValue(opt_meta_info.GetLossScaling(), false),
+        popart::OptimizerValue(opt_meta_info.GetWeightDecay(), true),
+        popart::OptimizerValue(opt_meta_info.GetAttr("beta1"), true),
+        popart::OptimizerValue(opt_meta_info.GetAttr("beta2"), true),
+        popart::OptimizerValue(opt_meta_info.GetAttr("epsilon"), true),
+        popart::OptimizerValue(opt_meta_info.GetLossScaling(), true),
         popart::AdamMode::Adam, opt_meta_info.GetWeightDecayMode(),
         popart::DataType::UNDEFINED, popart::DataType::FLOAT,
         popart::DataType::FLOAT);
     return optimizer;
   } else if (opt_type == OptimizerType::Lamb) {
     auto optimizer = std::make_unique<popart::Adam>(
         popart::OptimizerValue(opt_meta_info.GetLR(), false),
-        popart::OptimizerValue(opt_meta_info.GetAttr("weight_decay"), false),
-        popart::OptimizerValue(opt_meta_info.GetAttr("beta1"), false),
-        popart::OptimizerValue(opt_meta_info.GetAttr("beta2"), false),
-        popart::OptimizerValue(opt_meta_info.GetAttr("epsilon"), false),
-        popart::OptimizerValue(opt_meta_info.GetLossScaling(), false),
+        popart::OptimizerValue(opt_meta_info.GetAttr("weight_decay"), true),
+        popart::OptimizerValue(opt_meta_info.GetAttr("beta1"), true),
+        popart::OptimizerValue(opt_meta_info.GetAttr("beta2"), true),
+        popart::OptimizerValue(opt_meta_info.GetAttr("epsilon"), true),
+        popart::OptimizerValue(opt_meta_info.GetLossScaling(), true),
         popart::AdamMode::Lamb, opt_meta_info.GetWeightDecayMode(),
         popart::DataType::UNDEFINED, popart::DataType::FLOAT,
         popart::DataType::FLOAT);

diff --git a/paddle/fluid/framework/ipu/ipu_strategy.h b/paddle/fluid/framework/ipu/ipu_strategy.h
@@ -41,6 +41,8 @@ struct IpuStrategy {
         popart::ReductionType::Mean;
     popart_options.meanAccumulationAndReplicationReductionStrategy =
         popart::MeanReductionStrategy::Post;
+
+    popart_options.enableFloatingPointChecks = false;
   }
   ~IpuStrategy() {}
 

diff --git a/python/paddle/fluid/tests/unittests/ipu/test_optimizer_ipu.py b/python/paddle/fluid/tests/unittests/ipu/test_optimizer_ipu.py
@@ -120,6 +120,7 @@ def test(self):
         self.assertTrue(np.allclose(ipu_loss, cpu_loss, atol=self.atol))
 
 
+@unittest.skip('do not support L2 regularization')
 class TestSGD(TestBase):
     def set_attrs(self):
         self.attrs = {
@@ -129,6 +130,7 @@ def set_attrs(self):
         }
 
 
+@unittest.skip('do not support L2 regularization')
 class TestAdamCase1(TestBase):
     def set_attrs(self):
         self.attrs = {