Commit: 71287435467819e65854e49463cf312980914dca
Author: Xavier Hallade
Date: Mon May 30 15:21:38 2022 +0200
Branches: cycles_oneapi
https://developer.blender.org/rB71287435467819e65854e49463cf312980914dca
Cycles: avoid using copy engine for oneAPI backend
this improves stability with current drivers with less performance
regression than previous workaround.
===================================================================
M intern/cycles/device/oneapi/device.cpp
===================================================================
diff --git a/intern/cycles/device/oneapi/device.cpp
b/intern/cycles/device/oneapi/device.cpp
index b7cc967e598..88d91d12ecd 100644
--- a/intern/cycles/device/oneapi/device.cpp
+++ b/intern/cycles/device/oneapi/device.cpp
@@ -86,8 +86,8 @@ bool device_oneapi_init()
// NOTE(sirgienko) we need to enable JIT cache from here and
// right now this cache policy is controlled by env. variables
- // NOTE(hallade) we also enable immediate command lists + device scope events
- // as they improve stability as of intel/llvm sycl-nighly/20220501.
+ // NOTE(hallade) we also disable use of copy engine as it
+ // improves stability as of intel/llvm sycl-nightly/20220529.
// All these env variable can be set beforehand by end-users and
// will in that case -not- be overwritten.
# ifdef _WIN32
@@ -97,15 +97,13 @@ bool device_oneapi_init()
if (getenv("SYCL_CACHE_TRESHOLD") == nullptr) {
_putenv_s("SYCL_CACHE_THRESHOLD", "0");
}
- if (getenv("SYCL_PI_LEVEL_ZERO_DEVICE_SCOPE_EVENTS") == nullptr) {
- _putenv_s("SYCL_PI_LEVEL_ZERO_DEVICE_SCOPE_EVENTS", "0");
- }
- if (getenv("SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS") == nullptr) {
- _putenv_s("SYCL_PI_LEVEL_ZERO_USE_IMMEDIATE_COMMANDLISTS", "1");
+ if (getenv("SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE_FOR_IN_ORDER_QUEUE") ==
nullptr) {
+ _putenv_s("SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE_FOR_IN_ORDER_QUEUE", "0");
}
# elif __linux__
setenv("SYCL_CACHE_PERSISTENT", "1", false);
setenv("SYCL_CACHE_THRESHOLD", "0", false);
+ setenv("SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE_FOR_IN_ORDER_QUEUE", "0", false);
# endif
return true;
_______________________________________________
Bf-blender-cvs mailing list
Bf-blender-cvs@blender.org
List details, subscription details or unsubscribe:
https://lists.blender.org/mailman/listinfo/bf-blender-cvs
