experiment tracker agnostic

README.md

@@ -1007,6 +1007,7 @@ Once built, images will be saved to the same directory the command is invoked
 - [x] make sure the cascading ddpm in the repository can be trained unconditionally, offer a one-line CLI tool for training on a folder of images
 - [x] bring in cross-scale embedding from iclr paper https://github.com/lucidrains/vit-pytorch/blob/main/vit_pytorch/crossformer.py#L14
 - [x] cross embed layers for downsampling, as an option
+- [x] use an experimental tracker agnostic setup, as done <a href="https://github.com/lucidrains/tf-bind-transformer#simple-trainer-class-for-fine-tuning">here</a>
 - [ ] become an expert with unets, cleanup unet code, make it fully configurable, port all learnings over to https://github.com/lucidrains/x-unet (test out unet² in ddpm repo) - consider https://github.com/lucidrains/uformer-pytorch attention-based unet
 - [ ] transcribe code to Jax, which lowers the activation energy for distributed training, given access to TPUs
 - [ ] train on a toy task, offer in colab
@@ -1014,7 +1015,6 @@ Once built, images will be saved to the same directory the command is invoked
 - [ ] extend diffusion head to use diffusion-gan (potentially using lightweight-gan) to speed up inference
 - [ ] figure out if possible to augment with external memory, as described in https://arxiv.org/abs/2204.11824
 - [ ] test out grid attention in cascading ddpm locally, decide whether to keep or remove
-- [ ] use an experimental tracker agnostic setup, as done <a href="https://github.com/lucidrains/tf-bind-transformer#simple-trainer-class-for-fine-tuning">here</a>
 - [ ] interface out the vqgan-vae so a pretrained one can be pulled off the shelf to validate latent diffusion + DALL-E2
 - [ ] make sure FILIP works with DALL-E2 from x-clip https://arxiv.org/abs/2111.07783
 - [ ] offer save / load methods on the trainer classes to automatically take care of state dicts for scalers / optimizers / saving versions and checking for breaking changes

dalle2_pytorch/trackers.py

@@ -0,0 +1,49 @@
+import os
+import torch
+from torch import nn
+
+# helper functions
+
+def exists(val):
+    return val is not None
+
+# base class
+
+class BaseTracker(nn.Module):
+    def __init__(self):
+        super().__init__()
+
+    def init(self, config, **kwargs):
+        raise NotImplementedError
+
+    def log(self, log, **kwargs):
+        raise NotImplementedError
+
+# basic stdout class
+
+class ConsoleTracker(BaseTracker):
+    def init(self, **config):
+        print(config)
+
+    def log(self, log, **kwargs):
+        print(log)
+
+# basic wandb class
+
+class WandbTracker(BaseTracker):
+    def __init__(self):
+        super().__init__()
+        try:
+            import wandb
+        except ImportError as e:
+            print('`pip install wandb` to use the wandb experiment tracker')
+            raise e
+
+        os.environ["WANDB_SILENT"] = "true"
+        self.wandb = wandb
+
+    def init(self, **config):
+        self.wandb.init(**config)
+
+    def log(self, log, **kwargs):
+        self.wandb.log(log, **kwargs)

dalle2_pytorch/train.py

@@ -228,6 +228,8 @@ class DiffusionPriorTrainer(nn.Module):
 
         self.max_grad_norm = max_grad_norm
 
+        self.register_buffer('step', torch.tensor([0.]))
+
     def update(self):
         if exists(self.max_grad_norm):
             self.scaler.unscale_(self.optimizer)
@@ -240,6 +242,8 @@ class DiffusionPriorTrainer(nn.Module):
         if self.use_ema:
             self.ema_diffusion_prior.update()
 
+        self.step += 1
+
     @torch.inference_mode()
     def p_sample_loop(self, *args, **kwargs):
         return self.ema_diffusion_prior.ema_model.p_sample_loop(*args, **kwargs)
@@ -328,6 +332,8 @@ class DecoderTrainer(nn.Module):
 
         self.max_grad_norm = max_grad_norm
 
+        self.register_buffer('step', torch.tensor([0.]))
+
     @property
     def unets(self):
         return nn.ModuleList([ema.ema_model for ema in self.ema_unets])
@@ -358,6 +364,8 @@ class DecoderTrainer(nn.Module):
             ema_unet = self.ema_unets[index]
             ema_unet.update()
 
+        self.step += 1
+
     @torch.no_grad()
     def sample(self, *args, **kwargs):
         if self.use_ema:

train_diffusion_prior.py

@@ -1,24 +1,26 @@
 import os
 import math
+import time
 import argparse
 import numpy as np
 
 import torch
 from torch import nn
-from embedding_reader import EmbeddingReader
+from torch.cuda.amp import autocast, GradScaler
+
 from dalle2_pytorch import DiffusionPrior, DiffusionPriorNetwork
 from dalle2_pytorch.train import load_diffusion_model, save_diffusion_model, print_ribbon
 from dalle2_pytorch.optimizer import get_optimizer
-from torch.cuda.amp import autocast,GradScaler
+from dalle2_pytorch.trackers import ConsoleTracker, WandbTracker
+
+from embedding_reader import EmbeddingReader
 
-import time
 from tqdm import tqdm
 
-import wandb
-os.environ["WANDB_SILENT"] = "true"
 NUM_TEST_EMBEDDINGS = 100 # for cosine similarity reporting during training
 REPORT_METRICS_EVERY = 100 # for cosine similarity and other metric reporting during training
 
+tracker = WandbTracker()
 
 def eval_model(model,device,image_reader,text_reader,start,end,batch_size,loss_type,phase="Validation"):
     model.eval()
@@ -40,7 +42,7 @@ def eval_model(model,device,image_reader,text_reader,start,end,batch_size,loss_t
             total_samples += batches
 
         avg_loss = (total_loss / total_samples)
-        wandb.log({f'{phase} {loss_type}': avg_loss})
+        tracker.log({f'{phase} {loss_type}': avg_loss})
 
 def report_cosine_sims(diffusion_prior,image_reader,text_reader,train_set_size,NUM_TEST_EMBEDDINGS,device):
     diffusion_prior.eval()
@@ -87,7 +89,7 @@ def report_cosine_sims(diffusion_prior,image_reader,text_reader,train_set_size,N
            text_embed, predicted_unrelated_embeddings).cpu().numpy()
        predicted_img_similarity = cos(
            test_image_embeddings, predicted_image_embeddings).cpu().numpy()
-       wandb.log({"CosineSimilarity(text_embed,image_embed)": np.mean(original_similarity),
+       tracker.log({"CosineSimilarity(text_embed,image_embed)": np.mean(original_similarity),
             "CosineSimilarity(text_embed,predicted_image_embed)":np.mean(predicted_similarity),
             "CosineSimilarity(orig_image_embed,predicted_image_embed)":np.mean(predicted_img_similarity),
             "CosineSimilarity(text_embed,predicted_unrelated_embed)": np.mean(unrelated_similarity),
@@ -201,7 +203,7 @@ def train(image_embed_dim,
                     image_embed_dim)
 
             # Log to wandb
-            wandb.log({"Training loss": loss.item(),
+            tracker.log({"Training loss": loss.item(),
                         "Steps": step,
                         "Samples per second": samples_per_sec})
             # Log cosineSim(text_embed,predicted_image_embed) - cosineSim(text_embed,image_embed)
@@ -306,7 +308,7 @@ def main():
     if(DPRIOR_PATH is not None):
         RESUME = True
     else:
-        wandb.init(
+        tracker.init(
           entity=args.wandb_entity,
           project=args.wandb_project,
           config=config)
@@ -351,4 +353,4 @@ def main():
           args.amp)
 
 if __name__ == "__main__":
-  main()
+    main()