Simplify grad clip

1 files changed, 7 insertions, 9 deletions

diff --git a/modules/textual_inversion/textual_inversion.py b/modules/textual_inversion/textual_inversion.py
index c567ec3f..687d97bb 100644
--- a/modules/textual_inversion/textual_inversion.py
+++ b/modules/textual_inversion/textual_inversion.py
@@ -269,10 +269,10 @@ def train_embedding(embedding_name, learn_rate, batch_size, data_root, log_direc
 

     scheduler = LearnRateScheduler(learn_rate, steps, ititial_step)

 

-    clip_grad_mode_value = clip_grad_mode == "value"

-    clip_grad_mode_norm = clip_grad_mode == "norm"

-    clip_grad_enabled = clip_grad_mode_value or clip_grad_mode_norm

-    if clip_grad_enabled:

+    clip_grad = torch.nn.utils.clip_grad_value_ if clip_grad_mode == "value" else \

+        torch.nn.utils.clip_grad_norm_ if clip_grad_mode == "norm" else \

+        None

+    if clip_grad:

         clip_grad_sched = LearnRateScheduler(clip_grad_value, steps, ititial_step, verbose=False)

     # dataset loading may take a while, so input validations and early returns should be done before this

     shared.state.textinfo = f"Preparing dataset from {html.escape(data_root)}..."

@@ -302,7 +302,7 @@ def train_embedding(embedding_name, learn_rate, batch_size, data_root, log_direc
         if shared.state.interrupted:

             break

 

-        if clip_grad_enabled:

+        if clip_grad:

             clip_grad_sched.step(embedding.step)

 

         with torch.autocast("cuda"):

@@ -316,10 +316,8 @@ def train_embedding(embedding_name, learn_rate, batch_size, data_root, log_direc
             optimizer.zero_grad()

             loss.backward()

 

-            if clip_grad_mode_value:

-                torch.nn.utils.clip_grad_value_(embedding.vec, clip_value=clip_grad_sched.learn_rate)

-            elif clip_grad_mode_norm:

-                torch.nn.utils.clip_grad_norm_(embedding.vec, max_norm=clip_grad_sched.learn_rate)

+            if clip_grad:

+                clip_grad(embedding.vec, clip_grad_sched.learn_rate)

 

             optimizer.step()