Buckets:
| # Inferencia por lotes | |
| La inferencia por lotes procesa múltiples indicaciones a la vez para aumentar el rendimiento. Un lote mantiene la GPU ocupada, mientras que una sola indicación la deja subutilizada. | |
| La desventaja es una latencia más alta, porque se espera a que todo el lote termine. Los lotes grandes también requieren más memoria de GPU. | |
| ## Lote de varios prompts | |
| Pase una lista de prompts a la pipeline para generar una imagen para cada prompt. | |
| ```py | |
| import torch | |
| import matplotlib.pyplot as plt | |
| from diffusers import DiffusionPipeline | |
| pipeline = DiffusionPipeline.from_pretrained( | |
| "stabilityai/stable-diffusion-xl-base-1.0", | |
| dtype=torch.float16, | |
| device_map="cuda" # or "mps", "xpu", "cpu" | |
| ) | |
| prompts = [ | |
| "Cinematic shot of a cozy coffee shop interior, warm pastel light streaming through a window where a cat rests. Shallow depth of field, glowing cups in soft focus, dreamy lofi-inspired mood, nostalgic tones, framed like a quiet film scene.", | |
| "Polaroid-style photograph of a cozy coffee shop interior, bathed in warm pastel light. A cat sits on the windowsill near steaming mugs. Soft, slightly faded tones and dreamy blur evoke nostalgia, a lofi mood, and the intimate, imperfect charm of instant film.", | |
| "Soft watercolor illustration of a cozy coffee shop interior, pastel washes of color filling the space. A cat rests peacefully on the windowsill as warm light glows through. Gentle brushstrokes create a dreamy, lofi-inspired atmosphere with whimsical textures and nostalgic calm.", | |
| "Isometric pixel-art illustration of a cozy coffee shop interior in detailed 8-bit style. Warm pastel light fills the space as a cat rests on the windowsill. Blocky furniture and tiny mugs add charm, low-res retro graphics enhance the nostalgic, lofi-inspired game aesthetic." | |
| ] | |
| images = pipeline( | |
| prompt=prompts, | |
| ).images | |
| fig, axes = plt.subplots(2, 2, figsize=(12, 12)) | |
| axes = axes.flatten() | |
| for i, image in enumerate(images): | |
| axes[i].imshow(image) | |
| axes[i].set_title(f"Image {i+1}") | |
| axes[i].axis('off') | |
| plt.tight_layout() | |
| plt.show() | |
| ``` | |
| ## Generar varias imágenes por indicación | |
| Para generar múltiples variaciones de un solo prompt, use el argumento `num_images_per_prompt`. | |
| ```py | |
| import torch | |
| import matplotlib.pyplot as plt | |
| from diffusers import DiffusionPipeline | |
| pipeline = DiffusionPipeline.from_pretrained( | |
| "stabilityai/stable-diffusion-xl-base-1.0", | |
| dtype=torch.float16, | |
| device_map="cuda" # or "mps", "xpu", "cpu" | |
| ) | |
| prompt=""" | |
| Isometric pixel-art illustration of a cozy coffee shop interior in detailed 8-bit style. Warm pastel light fills the | |
| space as a cat rests on the windowsill. Blocky furniture and tiny mugs add charm, low-res retro graphics enhance the | |
| nostalgic, lofi-inspired game aesthetic. | |
| """ | |
| images = pipeline( | |
| prompt=prompt, | |
| num_images_per_prompt=4 | |
| ).images | |
| fig, axes = plt.subplots(2, 2, figsize=(12, 12)) | |
| axes = axes.flatten() | |
| for i, image in enumerate(images): | |
| axes[i].imshow(image) | |
| axes[i].set_title(f"Image {i+1}") | |
| axes[i].axis('off') | |
| plt.tight_layout() | |
| plt.show() | |
| ``` | |
| ## Generar varias imágenes para varios prompts | |
| Combine ambos enfoques para generar diferentes variaciones de distintos prompts. Este ejemplo reutiliza el `pipeline` y los `prompts` de los ejemplos anteriores. | |
| ```py | |
| images = pipeline( | |
| prompt=prompts, | |
| num_images_per_prompt=2, | |
| ).images | |
| fig, axes = plt.subplots(2, 4, figsize=(12, 12)) | |
| axes = axes.flatten() | |
| for i, image in enumerate(images): | |
| axes[i].imshow(image) | |
| axes[i].set_title(f"Image {i+1}") | |
| axes[i].axis('off') | |
| plt.tight_layout() | |
| plt.show() | |
| ``` | |
| ## Generar lotes reproducibles | |
| Para hacer que un lote sea reproducible, pase al pipeline una lista de objetos [Generator](https://pytorch.org/docs/stable/generated/torch.Generator.html), uno para cada imagen, cada uno con su propia semilla. | |
| > [!TIP] | |
| > Consulte la documentación de [Reproducibilidad](./reusing_seeds) para obtener más información sobre los algoritmos deterministas y el objeto `Generator`. | |
| Crea un `Generator` por imagen con una comprensión de lista. Multiplicar una lista (`[generator] * 3`) te da tres referencias al mismo `Generator`, por lo que las imágenes no obtienen semillas independientes. | |
| ```py | |
| # don't do this | |
| generator = [torch.Generator(device="cuda").manual_seed(0)] * 3 # or "mps", "xpu", "cpu" | |
| ``` | |
| El número de generadores debe coincidir con el número de imágenes del lote. Pasa el `generator` a la pipeline. | |
| ```py | |
| import torch | |
| import matplotlib.pyplot as plt | |
| from diffusers import DiffusionPipeline | |
| pipeline = DiffusionPipeline.from_pretrained( | |
| "stabilityai/stable-diffusion-xl-base-1.0", | |
| dtype=torch.float16, | |
| device_map="cuda" | |
| ) | |
| prompts = [ | |
| "Cinematic shot of a cozy coffee shop interior, warm pastel light streaming through a window where a cat rests. Shallow depth of field, glowing cups in soft focus, dreamy lofi-inspired mood, nostalgic tones, framed like a quiet film scene.", | |
| "Polaroid-style photograph of a cozy coffee shop interior, bathed in warm pastel light. A cat sits on the windowsill near steaming mugs. Soft, slightly faded tones and dreamy blur evoke nostalgia, a lofi mood, and the intimate, imperfect charm of instant film.", | |
| "Soft watercolor illustration of a cozy coffee shop interior, pastel washes of color filling the space. A cat rests peacefully on the windowsill as warm light glows through. Gentle brushstrokes create a dreamy, lofi-inspired atmosphere with whimsical textures and nostalgic calm.", | |
| "Isometric pixel-art illustration of a cozy coffee shop interior in detailed 8-bit style. Warm pastel light fills the space as a cat rests on the windowsill. Blocky furniture and tiny mugs add charm, low-res retro graphics enhance the nostalgic, lofi-inspired game aesthetic." | |
| ] | |
| generator = [torch.Generator(device="cuda").manual_seed(i) for i in range(len(prompts))] # or "mps", "xpu", "cpu" | |
| images = pipeline( | |
| prompt=prompts, | |
| generator=generator | |
| ).images | |
| fig, axes = plt.subplots(2, 2, figsize=(12, 12)) | |
| axes = axes.flatten() | |
| for i, image in enumerate(images): | |
| axes[i].imshow(image) | |
| axes[i].set_title(f"Image {i+1}") | |
| axes[i].axis('off') | |
| plt.tight_layout() | |
| plt.show() | |
| ``` | |
| Cada imagen está vinculada a una semilla, por lo que puedes elegir una imagen que te guste y regenerarla con la misma semilla mientras refinas su prompt. | |
| ## Atender solicitudes concurrentes | |
| Un servidor también aumenta el rendimiento al manejar solicitudes de muchos usuarios al mismo tiempo. Cargue el pipeline una sola vez y compártalo entre las solicitudes para que los modelos permanezcan en la memoria de la GPU solo una vez. Los programadores no son seguros para hilos, por lo que asigne a cada solicitud su propio programador con [from_pipe()](/docs/diffusers/v0.43.0/es/api/pipelines/overview#diffusers.DiffusionPipeline.from_pipe). Compartir un solo programador entre hilos provoca errores como `IndexError: index 21 is out of bounds for dimension 0 with size 21`. | |
| ```py | |
| scheduler = shared_pipeline.scheduler.from_config(shared_pipeline.scheduler.config) | |
| pipeline = StableDiffusion3Pipeline.from_pipe(shared_pipeline, scheduler=scheduler) | |
| ``` | |
| Para servidores completos construidos con [FastAPI](https://fastapi.tiangolo.com/), consulte el ejemplo [server](https://github.com/huggingface/diffusers/tree/main/examples/server) y el ejemplo [server-async](https://github.com/huggingface/diffusers/tree/main/examples/server-async). El ejemplo server-async también clona el estado del generador de números aleatorios para cada solicitud y hace que los tokenizadores sean seguros para compartir entre hilos. | |
| ## Próximos pasos | |
| - Cuando un lote no cabe en una GPU, o tienes más prompts de los que una GPU puede procesar, distribuye los prompts entre varias GPUs con [paralelismo de datos](../optimization/data_parallelism). | |
Xet Storage Details
- Size:
- 7.89 kB
- Xet hash:
- a21000ca27c5c48dfbe4f42c3e3b36557dd456367d823145dd7a49ba97f68e1a
·
Xet efficiently stores files, intelligently splitting them into unique chunks and accelerating uploads and downloads. More info.