Merge pull request #7 from LambdaLabsML/eole/fp16-v-autocast

fp16 v autocast

Author: eolecvk

.gitignore

@@ -163,3 +163,5 @@ cython_debug/
 #  and can be added to the global gitignore or merged into this file.  For a more nuclear
 #  option (not recommended) you can uncomment the following to ignore the entire idea folder.
 #.idea/
+
+.vscode/

.vscode/settings.json

@@ -13,6 +13,7 @@
 
 prompt = "a photo of an astronaut riding a horse on mars"
 
+
 def get_inference_pipeline(precision, backend):
     """
     returns HuggingFace diffuser pipeline
@@ -31,12 +32,14 @@ def get_inference_pipeline(precision, backend):
             torch_dtype=torch.float32 if precision == "single" else torch.float16,
         )
         pipe = pipe.to(device)
-    else:   
+    else:
         pipe = StableDiffusionOnnxPipeline.from_pretrained(
             "CompVis/stable-diffusion-v1-4",
             use_auth_token=os.environ["ACCESS_TOKEN"],
             revision="onnx",
-            provider="CPUExecutionProvider" if device.type=="cpu" else "CUDAExecutionProvider",
+            provider="CPUExecutionProvider"
+            if device.type == "cpu"
+            else "CUDAExecutionProvider",
             torch_dtype=torch.float32 if precision == "single" else torch.float16,
         )
 
@@ -51,43 +54,59 @@ def null_safety(images, **kwargs):
     return pipe
 
 
-def do_inference(pipe, n_samples, precision, num_inference_steps):
+def do_inference(pipe, n_samples, use_autocast, num_inference_steps):
     torch.cuda.empty_cache()
-    context = autocast if (device.type == "cuda" and precision == 'half') else nullcontext
+    context = (
+        autocast if (device.type == "cuda" and use_autocast) else nullcontext
+    )
     with context("cuda"):
-        images = pipe(prompt=[prompt] * n_samples, num_inference_steps=num_inference_steps).images
+        images = pipe(
+            prompt=[prompt] * n_samples, num_inference_steps=num_inference_steps
+        ).images
 
     return images
 
 
-def get_inference_time(pipe, n_samples, n_repeats, precision, num_inference_steps):
+def get_inference_time(
+    pipe, n_samples, n_repeats, use_autocast, num_inference_steps
+):
     from torch.utils.benchmark import Timer
+
     timer = Timer(
-        stmt="do_inference(pipe, n_samples, precision, num_inference_steps)",
+        stmt="do_inference(pipe, n_samples, use_autocast, num_inference_steps)",
         setup="from __main__ import do_inference",
-        globals={"pipe": pipe, "n_samples": n_samples, "precision": precision, "num_inference_steps": num_inference_steps},
-        num_threads=multiprocessing.cpu_count()
+        globals={
+            "pipe": pipe,
+            "n_samples": n_samples,
+            "use_autocast": use_autocast,
+            "num_inference_steps": num_inference_steps,
+        },
+        num_threads=multiprocessing.cpu_count(),
     )
     profile_result = timer.timeit(
         n_repeats
     )  # benchmark.Timer performs 2 iterations for warmup
     return round(profile_result.mean, 2)
 
 
-def get_inference_memory(pipe, n_samples, precision, num_inference_steps):
+def get_inference_memory(pipe, n_samples, use_autocast, num_inference_steps):
     if not torch.cuda.is_available():
         return 0
-    
+
     torch.cuda.empty_cache()
-    context = autocast if (device.type == "cuda" and precision == 'half') else nullcontext
+    context = autocast if (device.type == "cuda" and use_autocast) else nullcontext
     with context("cuda"):
-        images = pipe(prompt=[prompt] * n_samples, num_inference_steps=num_inference_steps).images
+        images = pipe(
+            prompt=[prompt] * n_samples, num_inference_steps=num_inference_steps
+        ).images
 
     mem = torch.cuda.memory_reserved()
     return round(mem / 1e9, 2)
 
 
-def run_benchmark(n_repeats, n_samples, precision, backend, num_inference_steps):
+def run_benchmark(
+    n_repeats, n_samples, precision, use_autocast, backend, num_inference_steps
+):
     """
     * n_repeats: nb datapoints for inference latency benchmark
     * n_samples: number of samples to generate (~ batch size)
@@ -100,10 +119,16 @@ def run_benchmark(n_repeats, n_samples, precision, backend, num_inference_steps)
     pipe = get_inference_pipeline(precision, backend)
 
     logs = {
-        "memory": 0.00 if device.type=="cpu" else get_inference_memory(pipe, n_samples, precision, num_inference_steps),
-        "latency": get_inference_time(pipe, n_samples, n_repeats, precision, num_inference_steps),
+        "memory": 0.00
+        if device.type == "cpu"
+        else get_inference_memory(
+            pipe, n_samples, use_autocast, num_inference_steps
+        ),
+        "latency": get_inference_time(
+            pipe, n_samples, n_repeats, use_autocast, num_inference_steps
+        ),
     }
-    print(f"n_samples: {n_samples}\tprecision: {precision}\tbackend: {backend}")
+    print(f"n_samples: {n_samples}\tprecision: {precision}\tautocast: {use_autocast}\tbackend: {backend}")
     print(logs, "\n")
     return logs
 
@@ -115,9 +140,8 @@ def get_device_description():
     """
     if device.type == "cpu":
         name = subprocess.check_output(
-            "grep -m 1 'model name' /proc/cpuinfo", 
-            shell=True
-        ).decode("utf-8") 
+            "grep -m 1 'model name' /proc/cpuinfo", shell=True
+        ).decode("utf-8")
         name = " ".join(name.split(" ")[2:]).strip()
         return name
     else:
@@ -130,14 +154,23 @@ def run_benchmark_grid(grid, n_repeats, num_inference_steps):
         {
             "n_samples": (1, 2),
             "precision": ("single", "half"),
+            "autocast" : ("yes", "no")
         }
     * n_repeats: nb datapoints for inference latency benchmark
     """
 
     csv_fpath = pathlib.Path(__file__).parent.parent / "benchmark_tmp.csv"
     # create benchmark.csv if not exists
     if not os.path.isfile(csv_fpath):
-        header = ["device", "precision", "runtime", "n_samples", "latency", "memory"]
+        header = [
+            "device",
+            "precision",
+            "autocast",
+            "runtime",
+            "n_samples",
+            "latency",
+            "memory",
+        ]
         with open(csv_fpath, "w") as f:
             writer = csv.writer(f)
             writer.writerow(header)
@@ -148,48 +181,58 @@ def run_benchmark_grid(grid, n_repeats, num_inference_steps):
         device_desc = get_device_description()
         for n_samples in grid["n_samples"]:
             for precision in grid["precision"]:
-                for backend in grid["backend"]:
-                    try:
-                        new_log = run_benchmark(
-                            n_repeats=n_repeats, 
-                            n_samples=n_samples, 
-                            precision=precision,
-                            backend=backend,
-                            num_inference_steps=num_inference_steps
-                        )
-                    except Exception as e:
-                        if "CUDA out of memory" in str(e) or "Failed to allocate memory" in str(e):
-                            print(str(e))
-                            torch.cuda.empty_cache()
-                            new_log = {
-                                    "latency": -1.00,
-                                    "memory": -1.00
-                            }
-                        else:
-                            raise e
-
-                    latency = new_log["latency"]
-                    memory = new_log["memory"]
-                    new_row = [device_desc, precision, backend, n_samples, latency, memory]
-                    writer.writerow(new_row)
+                use_autocast = False
+                if precision == "half":
+                    for autocast in grid["autocast"]:
+                        if autocast == "yes":
+                            use_autocast = True
+                        for backend in grid["backend"]:
+                            try:
+                                new_log = run_benchmark(
+                                    n_repeats=n_repeats,
+                                    n_samples=n_samples,
+                                    precision=precision,
+                                    use_autocast=use_autocast,
+                                    backend=backend,
+                                    num_inference_steps=num_inference_steps,
+                                )
+                            except Exception as e:
+                                if "CUDA out of memory" in str(
+                                    e
+                                ) or "Failed to allocate memory" in str(e):
+                                    print(str(e))
+                                    torch.cuda.empty_cache()
+                                    new_log = {"latency": -1.00, "memory": -1.00}
+                                else:
+                                    raise e
+
+                            latency = new_log["latency"]
+                            memory = new_log["memory"]
+                            new_row = [
+                                device_desc,
+                                precision,
+                                autocast,
+                                backend,
+                                n_samples,
+                                latency,
+                                memory,
+                            ]
+                            writer.writerow(new_row)
 
 
 if __name__ == "__main__":
 
     parser = argparse.ArgumentParser()
 
     parser.add_argument(
-        "--samples", 
+        "--samples",
         default="1",
-        type=str, 
-        help="Comma sepearated list of batch sizes (number of samples)"
+        type=str,
+        help="Comma sepearated list of batch sizes (number of samples)",
     )
 
     parser.add_argument(
-        "--steps", 
-        default=50, 
-        type=int, 
-        help="Number of diffusion steps."
+        "--steps", default=50, type=int, help="Number of diffusion steps."
     )
 
     parser.add_argument(
@@ -199,17 +242,25 @@ def run_benchmark_grid(grid, n_repeats, num_inference_steps):
         help="Number of repeats.",
     )
 
+    parser.add_argument(
+        "--autocast",
+        default="no",
+        type=str,
+        help="If 'yes', will perform additional runs with autocast activated for half precision inferences",
+    )
+
     args = parser.parse_args()
 
     grid = {
-        "n_samples": tuple(map(int, args.samples.split(","))), 
-        # Only use single-precision for cpu because "LayerNormKernelImpl" not implemented for 'Half' on cpu, 
+        "n_samples": tuple(map(int, args.samples.split(","))),
+        # Only use single-precision for cpu because "LayerNormKernelImpl" not implemented for 'Half' on cpu,
         # Remove autocast won't help. Ref:
         # https://github.com/CompVis/stable-diffusion/issues/307
         "precision": ("single",) if device.type == "cpu" else ("single", "half"),
+        "autocast": ("no",) if args.autocast == "no" else ("yes", "no"),
         # Only use onnx for cpu, until issues are fixed by upstreams. Ref:
         # https://github.com/huggingface/diffusers/issues/489#issuecomment-1261577250
         # https://github.com/huggingface/diffusers/pull/440
-        "backend": ("pytorch", "onnx") if device.type == "cpu" else ("pytorch",)
+        "backend": ("pytorch", "onnx") if device.type == "cpu" else ("pytorch",),
     }
     run_benchmark_grid(grid, n_repeats=args.repeats, num_inference_steps=args.steps)