From 5f9ddfa46f28ca2aa9e0bd832f6bbd67069be63e Mon Sep 17 00:00:00 2001
From: Kohaku-Blueleaf <59680068+KohakuBlueleaf@users.noreply.github.com>
Date: Thu, 19 Oct 2023 23:57:22 +0800
Subject: [PATCH] Add sdxl only arg

---
 modules/cmd_args.py  | 1 +
 modules/sd_models.py | 3 +++
 2 files changed, 4 insertions(+)

diff --git a/modules/cmd_args.py b/modules/cmd_args.py
index 0f14c71e4..20bfb2c44 100644
--- a/modules/cmd_args.py
+++ b/modules/cmd_args.py
@@ -119,3 +119,4 @@ parser.add_argument("--disable-all-extensions", action='store_true', help="preve
 parser.add_argument("--disable-extra-extensions", action='store_true', help="prevent all extensions except built-in from running regardless of any other settings", default=False)
 parser.add_argument("--skip-load-model-at-start", action='store_true', help="if load a model at web start, only take effect when --nowebui", )
 parser.add_argument("--opt-unet-fp8-storage", action='store_true', help="use fp8 for SD UNet to save vram", default=False)
+parser.add_argument("--opt-unet-fp8-storage-xl", action='store_true', help="use fp8 for SD UNet to save vram", default=False)
diff --git a/modules/sd_models.py b/modules/sd_models.py
index 3b8ff8209..08af128fc 100644
--- a/modules/sd_models.py
+++ b/modules/sd_models.py
@@ -394,6 +394,9 @@ def load_model_weights(model, checkpoint_info: CheckpointInfo, state_dict, timer
         if shared.cmd_opts.opt_unet_fp8_storage:
             model.model.diffusion_model = model.model.diffusion_model.to(torch.float8_e4m3fn)
             timer.record("apply fp8 unet")
+        elif model.is_sdxl and shared.cmd_opts.opt_unet_fp8_storage_xl:
+            model.model.diffusion_model = model.model.diffusion_model.to(torch.float8_e4m3fn)
+            timer.record("apply fp8 unet for sdxl")
 
     devices.unet_needs_upcast = shared.cmd_opts.upcast_sampling and devices.dtype == torch.float16 and devices.dtype_unet == torch.float16