fix issue on geforce GPU

bit_tf2/train.py

@@ -27,6 +27,10 @@
 import bit_tf2.models as models
 import input_pipeline_tf2_or_jax as input_pipeline
 
+# set_memory_growth=True to prevent OOM error
+gpu = tf.config.experimental.list_physical_devices('GPU')
+tf.config.experimental.set_memory_growth(gpu[0], True)
+
 
 def reshape_for_keras(features, batch_size, crop_size):
   features["image"] = tf.reshape(features["image"], (batch_size, crop_size, crop_size, 3))
@@ -140,7 +144,7 @@ def main(args):
 
   for epoch, accu in enumerate(history.history['val_accuracy']):
     logger.info(
-            f'Step: {epoch * args.eval_every}, '
+            f'Step: {epoch * steps_per_epoch}, '
             f'Test accuracy: {accu:0.3f}')