From 916cf90d04e57fee23092c966740fbe94fd92cff Mon Sep 17 00:00:00 2001
From: Jordan Gong <jordan.gong@protonmail.com>
Date: Tue, 9 Feb 2021 21:21:57 +0800
Subject: Improve performance when disentangling

This is a HUGE performance optimization, up to 2x faster than before. Mainly because of the replacement of randomized for-loop with randomized tensor.
---
 models/model.py | 37 ++++++++++++++++---------------------
 1 file changed, 16 insertions(+), 21 deletions(-)

(limited to 'models/model.py')

diff --git a/models/model.py b/models/model.py
index ee07615..70c43b3 100644
--- a/models/model.py
+++ b/models/model.py
@@ -181,8 +181,9 @@ class Model:
         # Training start
         start_time = datetime.now()
         running_loss = torch.zeros(5, device=self.device)
-        print(f"{'Iter':^5} {'Loss':^6} {'Xrecon':^8} {'PoseSim':^8}",
-              f"{'CanoCons':^8} {'BATripH':^8} {'BATripP':^8} {'LRs':^19}")
+        print(f"{'Time':^8} {'Iter':^5} {'Loss':^6}",
+              f"{'Xrecon':^8} {'CanoCons':^8} {'PoseSim':^8}",
+              f"{'BATripH':^8} {'BATripP':^8} {'LRs':^19}")
         for (batch_c1, batch_c2) in dataloader:
             self.curr_iter += 1
             # Zero the parameter gradients
@@ -201,8 +202,8 @@ class Model:
             # Write losses to TensorBoard
             self.writer.add_scalar('Loss/all', loss, self.curr_iter)
             self.writer.add_scalars('Loss/details', dict(zip([
-                'Cross reconstruction loss', 'Pose similarity loss',
-                'Canonical consistency loss', 'Batch All triplet loss (HPM)',
+                'Cross reconstruction loss', 'Canonical consistency loss',
+                'Pose similarity loss', 'Batch All triplet loss (HPM)',
                 'Batch All triplet loss (PartNet)'
             ], losses)), self.curr_iter)
 
@@ -217,25 +218,25 @@ class Model:
                 )
                 # Write disentangled images
                 if self.image_log_on:
-                    (appearance_image, canonical_image, pose_image) = images
+                    i_a, i_c, i_p = images
                     self.writer.add_images(
-                        'Canonical image', canonical_image, self.curr_iter
+                        'Canonical image', i_c, self.curr_iter
                     )
-                    for i in range(self.pr * self.k):
+                    for (i, (o, a, p)) in enumerate(zip(x_c1, i_a, i_p)):
                         self.writer.add_images(
-                            f'Original image/batch {i}', x_c1[i], self.curr_iter
+                            f'Original image/batch {i}', o, self.curr_iter
                         )
                         self.writer.add_images(
-                            f'Appearance image/batch {i}',
-                            appearance_image[:, i, :, :, :],
-                            self.curr_iter
+                            f'Appearance image/batch {i}', a, self.curr_iter
                         )
                         self.writer.add_images(
-                            f'Pose image/batch {i}',
-                            pose_image[:, i, :, :, :],
-                            self.curr_iter
+                            f'Pose image/batch {i}', p, self.curr_iter
                         )
-                print(f'{self.curr_iter:5d} {running_loss.sum() / 100:6.3f}',
+                time_used = datetime.now() - start_time
+                remaining_minute, second = divmod(time_used.seconds, 60)
+                hour, minute = divmod(remaining_minute, 60)
+                print(f'{hour:02}:{minute:02}:{second:02}',
+                      f'{self.curr_iter:5d} {running_loss.sum() / 100:6.3f}',
                       '{:f} {:f} {:f} {:f} {:f}'.format(*running_loss / 100),
                       '{:.3e} {:.3e}'.format(lrs[0], lrs[1]))
                 running_loss.zero_()
@@ -250,12 +251,6 @@ class Model:
                     'optim_state_dict': self.optimizer.state_dict(),
                     'loss': loss,
                 }, self._checkpoint_name)
-                print(datetime.now() - start_time, 'used')
-                start_time = datetime.now()
-                print(
-                    f"{'Iter':^5} {'Loss':^6} {'Xrecon':^8} {'PoseSim':^8}",
-                    f"{'CanoCons':^8} {'BATripH':^8} {'BATripP':^8} {'LRs':^19}"
-                )
 
             if self.curr_iter == self.total_iter:
                 self.writer.close()
-- 
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