Merge pull request #3794 from vladmandic/dev

Disable FP64 Emulation on IPEX

CHANGELOG.md

@@ -1,6 +1,6 @@
 # Change Log for SD.Next
 
-## Update for 2025-02-27
+## Update for 2025-02-28
 
 Primarily a hotfix/service release plus few UI improvements and one exciting new feature: Remote-VAE!
 
@@ -31,6 +31,7 @@ Primarily a hotfix/service release plus few UI improvements and one exciting new
   - handle pipeline class switch errors  
   - improve extensions options compatibility  
   - fix flux on ipex  
+  - disable fp64 emulation on ipex  
 
 ## Update for 2025-02-18
 

installer.py

@@ -715,21 +715,26 @@ def install_ipex(torch_command):
 
     if os.environ.get("NEOReadDebugKeys", None) is None:
         os.environ.setdefault('NEOReadDebugKeys', '1')
+
     if os.environ.get("ClDeviceGlobalMemSizeAvailablePercent", None) is None:
         os.environ.setdefault('ClDeviceGlobalMemSizeAvailablePercent', '100')
+
     if os.environ.get("SYCL_CACHE_PERSISTENT", None) is None:
         os.environ.setdefault('SYCL_CACHE_PERSISTENT', '1') # Jit cache
 
     if os.environ.get("PYTORCH_ENABLE_XPU_FALLBACK", None) is None:
         os.environ.setdefault('PYTORCH_ENABLE_XPU_FALLBACK', '1') # CPU fallback for unsupported ops
-    if os.environ.get("OverrideDefaultFP64Settings", None) is None:
-        os.environ.setdefault('OverrideDefaultFP64Settings', '1')
-    if os.environ.get("IGC_EnableDPEmulation", None) is None:
-        os.environ.setdefault('IGC_EnableDPEmulation', '1') # FP64 Emulation
+
     if os.environ.get('IPEX_FORCE_ATTENTION_SLICE', None) is None:
         # XPU PyTorch doesn't support Flash Atten or Memory Atten yet so Battlemage goes OOM without this
         os.environ.setdefault('IPEX_FORCE_ATTENTION_SLICE', '1')
 
+    # FP64 emulation causes random UR Errors
+    #if os.environ.get("OverrideDefaultFP64Settings", None) is None:
+    #    os.environ.setdefault('OverrideDefaultFP64Settings', '1')
+    #if os.environ.get("IGC_EnableDPEmulation", None) is None:
+    #    os.environ.setdefault('IGC_EnableDPEmulation', '1') # FP64 Emulation
+
     if args.use_nightly:
         torch_command = os.environ.get('TORCH_COMMAND', '--pre torch torchvision --index-url https://download.pytorch.org/whl/nightly/xpu')
     else: