Added support for training on primary gpu with low_vram flag. Updated example script to remove creepy horse sample at that seed

README.md

@@ -5,6 +5,10 @@ This is my research repo. I do a lot of experiments in it and it is possible tha
 If something breaks, checkout an earlier commit. This repo can train a lot of things, and it is
 hard to keep up with all of them.
 
+## Support my work
+
+My work would not be possible without the amazing support of [Glif](https://glif.app/). 
+
 ## Installation
 
 Requirements:
@@ -43,16 +47,21 @@ pip install -r requirements.txt
 
 ### WIP. I am updating docs and optimizing as fast as I can. If there are bugs open a ticket. Not knowing how to get it to work is NOT a bug. Be paitient as I continue to develop it.
 
-Training currently only works with FLUX.1-dev. Which means anything you train will inherit the
-non commercial license. It is also a gated model, so you need to accept the license on HF before using it.
-Otherwise, this will fail. Here are the required steps to setup a license.
 
 ### Requirements
-You currently need a dedicated GPU with **at least 24GB of VRAM** to train FLUX.1. If you are using it as your GPU to control 
+You currently need a GPU with **at least 24GB of VRAM** to train FLUX.1. If you are using it as your GPU to control 
-your monitors, it will probably not fit as that takes up some ram. I may be able to get this lower, but for now,
+your monitors, you probably need to set the flag `low_vram: true` in the config file under `model:`. This will quantize
-It won't work. It may not work on Windows, I have only tested on linux for now. This is still extremely experimental
+the model on CPU and should allow it to train with monitors attached. Users have gotten it to work on Windows with WSL,
+but there are some reports of a bug when running on windows natively. 
+I have only tested on linux for now. This is still extremely experimental
 and a lot of quantizing and tricks had to happen to get it to fit on 24GB at all. 
 
+### Model License
+
+Training currently only works with FLUX.1-dev. Which means anything you train will inherit the
+non-commercial license. It is also a gated model, so you need to accept the license on HF before using it.
+Otherwise, this will fail. Here are the required steps to setup a license.
+
 1. Sign into HF and accept the model access here [black-forest-labs/FLUX.1-dev](https://huggingface.co/black-forest-labs/FLUX.1-dev)
 2. Make a file named `.env` in the root on this folder
 3. [Get a READ key from huggingface](https://huggingface.co/settings/tokens/new?) and add it to the `.env` file like so `HF_TOKEN=your_key_here`

config/examples/train_lora_flux_24gb.yaml

@@ -25,16 +25,16 @@ config:
         # datasets are a folder of images. captions need to be txt files with the same name as the image
         # for instance image2.jpg and image2.txt. Only jpg, jpeg, and png are supported currently
         # images will automatically be resized and bucketed into the resolution specified
-        - folder_path: "/mnt/Datasets/1920s_illustrations"
+        - folder_path: "/path/to/images/folder"
-#        - folder_path: "/path/to/images/folder"
           caption_ext: "txt"
           caption_dropout_rate: 0.05  # will drop out the caption 5% of time
           shuffle_tokens: false  # shuffle caption order, split by commas
           cache_latents_to_disk: true  # leave this true unless you know what you're doing
           resolution: [ 512, 768, 1024 ]  # flux enjoys multiple resolutions
+          num_workers: 0
       train:
         batch_size: 1
-        steps: 4000  # total number of steps to train
+        steps: 4000  # total number of steps to train 500 - 4000 is a good range
         gradient_accumulation_steps: 1
         train_unet: true
         train_text_encoder: false  # probably won't work with flux
@@ -43,6 +43,8 @@ config:
         noise_scheduler: "flowmatch" # for training only
         optimizer: "adamw8bit"
         lr: 4e-4
+        # uncomment this to skip the pre training sample
+#        skip_first_sample: true
 
         # ema will smooth out learning, but could slow it down. Recommended to leave on.
         ema_config:
@@ -56,6 +58,7 @@ config:
         name_or_path: "black-forest-labs/FLUX.1-dev"
         is_flux: true
         quantize: true  # run 8bit mixed precision
+#        low_vram: true  # uncomment this if the GPU is connected to your monitors. It will use less vram to quantize, but is slower.
       sample:
         sampler: "flowmatch" # must match train.noise_scheduler
         sample_every: 250 # sample every this many steps
@@ -66,7 +69,7 @@ config:
 #          - "[trigger] holding a sign that says 'I LOVE PROMPTS!'"\
           - "woman with red hair, playing chess at the park, bomb going off in the background"
           - "a woman holding a coffee cup, in a beanie, sitting at a cafe"
-          - "a horse in a night club dancing, fish eye lens, smoke machine, lazer lights, holding a martini, large group"
+          - "a horse is a DJ at a night club, fish eye lens, smoke machine, lazer lights, holding a martini"
           - "a man showing off his cool new t shirt at the beach, a shark is jumping out of the water in the background"
           - "a bear building a log cabin in the snow covered mountains"
           - "woman playing the guitar, on stage, singing a song, laser lights, punk rocker"

toolkit/config_modules.py

@@ -411,6 +411,7 @@ class ModelConfig:
 
         # only for flux for now
         self.quantize = kwargs.get("quantize", False)
+        self.low_vram = kwargs.get("low_vram", False)
         pass
 
 

toolkit/stable_diffusion_model.py

@@ -56,7 +56,7 @@ from transformers import CLIPTextModel, CLIPTokenizer, CLIPTextModelWithProjecti
 from toolkit.paths import ORIG_CONFIGS_ROOT, DIFFUSERS_CONFIGS_ROOT
 from toolkit.util.inverse_cfg import inverse_classifier_guidance
 
-from optimum.quanto import freeze, qfloat8, quantize, QTensor
+from optimum.quanto import freeze, qfloat8, quantize, QTensor, qint4
 
 # tell it to shut up
 diffusers.logging.set_verbosity(diffusers.logging.ERROR)
@@ -174,6 +174,7 @@ class StableDiffusion:
             self.is_flow_matching = True
 
         self.quantize_device = quantize_device if quantize_device is not None else self.device
+        self.low_vram = self.model_config.low_vram
 
     def load_model(self):
         if self.is_loaded:
@@ -472,7 +473,9 @@ class StableDiffusion:
                 # low_cpu_mem_usage=False,
                 # device_map=None
             )
-            transformer.to(torch.device(self.quantize_device), dtype=dtype)
+            if not self.low_vram:
+                # for low v ram, we leave it on the cpu. Quantizes slower, but allows training on primary gpu
+                transformer.to(torch.device(self.quantize_device), dtype=dtype)
             flush()
 
             if self.model_config.lora_path is not None:
@@ -493,8 +496,9 @@ class StableDiffusion:
                 pipe.unload_lora_weights()
 
             if self.model_config.quantize:
+                quantization_type = qfloat8
                 print("Quantizing transformer")
-                quantize(transformer, weights=qfloat8)
+                quantize(transformer, weights=quantization_type)
                 freeze(transformer)
                 transformer.to(self.device_torch)
             else: