added SAVE_ON_CRASH

_safetensors.py

@@ -6,7 +6,7 @@ import torch
 from _bighash import hash
 
 class WritingSafeTensors:
-    def __init__(self, name, file_size=16*1024*1024*1024, deduplicate=False, **metadata):
+    def __init__(self, name, file_size=16*1024*1024*1024, deduplicate=False, save_on_crash=False, **metadata):
         self.name = name.removesuffix('.safetensors')
         self.metadata = metadata
         self.file = self.File(self.name + '.safetensors')
@@ -16,6 +16,7 @@ class WritingSafeTensors:
         if deduplicate:
             warnings.warn('Safetensors deduplication enabled. The file will not be readable with the official library without https://github.com/huggingface/safetensors/pull/586', stacklevel=2)
         self.hash_map = {} if deduplicate else None
+        self.save_on_crash = save_on_crash
     def add(self, name, tensor):
         if self.hash_map is None:
             self.file.add(name, tensor, return_hash=False)
@@ -87,7 +88,7 @@ class WritingSafeTensors:
         return self
     def __exit__(self, Exc, exc, tb):
         throw = None
-        if Exc is None:
+        if Exc is None or self.save_on_crash:
             try:
                 self.finalize()
             except:

run_test.py

@@ -3,6 +3,7 @@ import contextlib, os, sys
 
 STORE_WEIGHTS = False
 DEDUPLICATE_SAFETENSORS = True
+SAVE_ON_CRASH = False
 FAKE_H100 = False
 TORCH_DTYPE = 'float64'
 USE_GPU = False
@@ -79,6 +80,7 @@ with range_progress_description('constructing pipeline'):
 SafeTensors = WritingSafeTensors(
         fn,
         deduplicate = DEDUPLICATE_SAFETENSORS,
+        save_on_crash = SAVE_ON_CRASH,
         prompt = prompt,
         store_weights = STORE_WEIGHTS,
         use_gpu = USE_GPU,