Merge #1073 from sgsdxzy/triton

* Multi-GPU support for triton
* Better quantized model filename detection

README.md

@@ -239,6 +239,7 @@ Optionally, you can use the following command-line flags:
 | `--model_type MODEL_TYPE` | GPTQ: Model type of pre-quantized model. Currently LLaMA, OPT, and GPT-J are supported. |
 | `--groupsize GROUPSIZE`   | GPTQ: Group size. |
 | `--pre_layer PRE_LAYER`   | GPTQ: The number of layers to allocate to the GPU. Setting this parameter enables CPU offloading for 4-bit models. |
+| `--no-warmup_autotune`    | GPTQ: Disable warmup autotune for triton. |
 
 #### FlexGen
 

modules/GPTQ_loader.py

@@ -61,6 +61,16 @@ def _load_quant(model, checkpoint, wbits, groupsize=-1, faster_kernel=False, exc
         model.load_state_dict(safe_load(checkpoint), strict=False)
     else:
         model.load_state_dict(torch.load(checkpoint), strict=False)
+
+    try:
+        from quant import autotune_warmup, make_quant_attn
+        # triton branch
+        make_quant_attn(model)
+        if not shared.args.no_warmup_autotune:
+            autotune_warmup(model)
+    except ImportError:  # not triton branch
+        pass
+
     model.seqlen = 2048
     print('Done.')
 
@@ -68,8 +78,9 @@ def _load_quant(model, checkpoint, wbits, groupsize=-1, faster_kernel=False, exc
 
 
 def load_quantized(model_name):
+
+    # Find the model type
     if not shared.args.model_type:
-        # Try to determine model type from model name
         name = model_name.lower()
         if any((k in name for k in ['llama', 'alpaca', 'vicuna'])):
             model_type = 'llama'
@@ -84,6 +95,7 @@ def load_quantized(model_name):
     else:
         model_type = shared.args.model_type.lower()
 
+    # Select the appropriate load_quant function
     if shared.args.pre_layer and model_type == 'llama':
         load_quant = llama_inference_offload.load_quant
     elif model_type in ('llama', 'opt', 'gptj'):
@@ -94,7 +106,25 @@ def load_quantized(model_name):
         print("Unknown pre-quantized model type specified. Only 'llama', 'opt' and 'gptj' are supported")
         exit()
 
-    # Now we are going to try to locate the quantized model file.
+    # Locate the quantized model file
+    path_to_model = Path(f'{shared.args.model_dir}/{model_name}')
+    pt_path = None
+    priority_name_list = [
+        Path(f'{shared.args.model_dir}/{model_name}{hyphen}{shared.args.wbits}bit{group}{ext}')
+        for ext in ['.safetensors', '.pt']
+        for group in ([f'-{shared.args.groupsize}g', ''] if shared.args.groupsize > 0 else [''])
+        for hyphen in ['-', f'/{model_name}-', '/']
+    ]
+    if shared.args.groupsize > 0:
+        priority_name_list = [i for i in priority_name_list if str(shared.args.groupsize) in i.name] + [i for i in priority_name_list if str(shared.args.groupsize) not in i.name]
+    for path in priority_name_list:
+        if path.exists():
+            pt_path = path
+            break
+
+    # If the model hasn't been found with a well-behaved name, pick the last .pt
+    # or the last .safetensors found in its folder as a last resort
+    if not pt_path:
         path_to_model = Path(f'{shared.args.model_dir}/{model_name}')
         found_pts = list(path_to_model.glob("*.pt"))
         found_safetensors = list(path_to_model.glob("*.safetensors"))
@@ -104,23 +134,6 @@ def load_quantized(model_name):
             pt_path = found_pts[-1]
         elif len(found_safetensors) > 0:
             pt_path = found_safetensors[-1]
-    else:
-        if path_to_model.name.lower().startswith('llama-7b'):
-            pt_model = f'llama-7b-{shared.args.wbits}bit'
-        elif path_to_model.name.lower().startswith('llama-13b'):
-            pt_model = f'llama-13b-{shared.args.wbits}bit'
-        elif path_to_model.name.lower().startswith('llama-30b'):
-            pt_model = f'llama-30b-{shared.args.wbits}bit'
-        elif path_to_model.name.lower().startswith('llama-65b'):
-            pt_model = f'llama-65b-{shared.args.wbits}bit'
-        else:
-            pt_model = f'{model_name}-{shared.args.wbits}bit'
-
-        # Try to find the .safetensors or .pt both in the model dir and in the subfolder
-        for path in [Path(p + ext) for ext in ['.safetensors', '.pt'] for p in [f"{shared.args.model_dir}/{pt_model}", f"{path_to_model}/{pt_model}"]]:
-            if path.exists():
-                pt_path = path
-                break
 
     if not pt_path:
         print("Could not find the quantized model in .pt or .safetensors format, exiting...")
@@ -136,6 +149,7 @@ def load_quantized(model_name):
         model = load_quant(str(path_to_model), str(pt_path), shared.args.wbits, shared.args.groupsize, kernel_switch_threshold=threshold)
 
         # accelerate offload (doesn't work properly)
+        if shared.args.gpu_memory or torch.cuda.device_count() > 1:
             if shared.args.gpu_memory:
                 memory_map = list(map(lambda x: x.strip(), shared.args.gpu_memory))
                 max_cpu_memory = shared.args.cpu_memory.strip() if shared.args.cpu_memory is not None else '99GiB'
@@ -143,9 +157,11 @@ def load_quantized(model_name):
                 for i in range(len(memory_map)):
                     max_memory[i] = f'{memory_map[i]}GiB' if not re.match('.*ib$', memory_map[i].lower()) else memory_map[i]
                 max_memory['cpu'] = max_cpu_memory
+            else:
+                max_memory = accelerate.utils.get_balanced_memory(model)
 
             device_map = accelerate.infer_auto_device_map(model, max_memory=max_memory, no_split_module_classes=["LlamaDecoderLayer"])
-            print("Using the following device map for the 4-bit model:", device_map)
+            print("Using the following device map for the quantized model:", device_map)
             # https://huggingface.co/docs/accelerate/package_reference/big_modeling#accelerate.dispatch_model
             model = accelerate.dispatch_model(model, device_map=device_map, offload_buffers=True)
 

modules/shared.py

@@ -117,6 +117,7 @@ parser.add_argument('--wbits', type=int, default=0, help='GPTQ: Load a pre-quant
 parser.add_argument('--model_type', type=str, help='GPTQ: Model type of pre-quantized model. Currently LLaMA, OPT, and GPT-J are supported.')
 parser.add_argument('--groupsize', type=int, default=-1, help='GPTQ: Group size.')
 parser.add_argument('--pre_layer', type=int, default=0, help='GPTQ: The number of layers to allocate to the GPU. Setting this parameter enables CPU offloading for 4-bit models.')
+parser.add_argument('--no-warmup_autotune', action='store_true', help='GPTQ: Disable warmup autotune for triton.')
 
 # FlexGen
 parser.add_argument('--flexgen', action='store_true', help='Enable the use of FlexGen offloading.')