ZES_ENABLE_SYSMAN is supposed to be set for free_memory queries to be
available.
These queries are then optionally used since
759bb6c768, for the host memory fallback
feature.
Setting SYCL_ENABLE_PCI was leading ZES_ENABLE_SYSMAN to be set by DPCPP
2022-12 but it's not used by newer versions of DPCPP.
We however temporarily disable SYSMAN by default on Linux as builds with
JEMALLOC enabled currently lead to driver runtime issues. These can be
worked around by using LD_PRELOAD=libigsc.so.
This enables scenes with all textures not fitting in GPU
memory to finally render. For scenes that are fitting,
no functional change or performance change is expected.
Pull Request: https://projects.blender.org/blender/blender/pulls/122385
This enables the new lazy module loading behavior introduced in OIDN 2.3,
without breaking compatibility with older versions of OIDN (using separate
code paths).
Also, the detection of OIDN support for devices is now much cleaner, and
devices do not need to be matched by PCI address or device name anymore.
Pull Request: https://projects.blender.org/blender/blender/pulls/121362
With drivers 101.4972 to 101.5085, some Arc and Meteor Lake devices
ignore the prebuilt GPU binaries and since the addition of Meteor Lake
binaries, fail caching newly generated ones on Windows.
This got fixed in drivers 101.5186 so it's preferable to require these
new drivers to be used.
NDEBUG is part of the C standard and disables asserts. Only this will
now be used to decide if asserts are enabled.
DEBUG was a Blender specific define, that has now been removed.
_DEBUG is a Visual Studio define for builds in Debug configuration.
Blender defines this for all platforms. This is still used in a few
places in the draw code, and in external libraries Bullet and Mantaflow.
Pull Request: https://projects.blender.org/blender/blender/pulls/115774
OpenImageDenoise V2 comes with GPU support for various backends. This adds a new class, OIDNDenoiserGPU, in order to add this functionality into the existing Cycles post processing pipeline without having to change it much. OptiX and OIDN CPU denoising remain as they are. Rendering on a supported Intel GPU will automatically select the GPU denoiser.
Device support is initially limited to the oneAPI devices that are supported by Cycles, but can be extended.
Ref #115045
Co-authored-by: Stefan Werner <stefan.werner@intel.com>
Co-authored-by: Ray Molenkamp <github@lazydodo.com>
Pull Request: https://projects.blender.org/blender/blender/pulls/108314
In order to speedup compilation, we upgrade IGC to 1.0.14828.26 along
with ocloc and the associated dependencies.
We also bump min-driver version accordingly to 26918.
Ref !114341
The first public Windows driver version with a higher number is
101.4824, so we bump the min-required driver version on Windows to this
one to ensure compatibility.
<algorithm> header include is missing from some sycl headers, this will
be fixed upstream with https://github.com/intel/llvm/pull/10424,
meanwhile, we work around it by including it directly.
Recent versions of DPC++ dropped using the environment variable
SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE_FOR_IN_ORDER_QUEUE=0 we were setting.
We're now also setting SYCL_PI_LEVEL_ZERO_USE_COPY_ENGINE=0 by default
to keep a consistent behavior.
During recent testing, the oldest 101.4032 (windows) and <25812 (linux)
drivers led to crashes during JIT compilation, so we bump the
requirement to newer 101.4313 and 25812.14 drivers that do incorporate
the required fixes.
Pull Request: https://projects.blender.org/blender/blender/pulls/109281
Only Embree CPU BVH was built in the multi-device case. However, one
Embree GPU BVH is needed per GPU, so we now reuse the same logic as in
the other backends.
Pull Request: https://projects.blender.org/blender/blender/pulls/107992
Updated Embree 4 library with GPU support is required for it to be
compiled - compatiblity with Embree 3 and Embree 4 without GPU support
is maintained.
Enabling hardware raytracing is an opt-in user setting for now.
Pull Request: https://projects.blender.org/blender/blender/pulls/106266
A noticeable (>5%) performance regression in oneAPI backend came with
a501a2dbff. Updating to latest graphics
compiler from driver 101.4032 fixes it.
I've tested it with current min-supported drivers and it runs well but
since compatibility of graphics compiler with older drivers isn't
guaranteed, I'm also bumping the min-supported driver versions.
If end-users consider latest drivers too fresh to switch to (version
isn't released as stable on Linux as of today but should be before
Blender 3.5 release), CYCLES_ONEAPI_ALL_DEVICES=1 env variable can be
used.
Intel Graphics Compiler on Linux will be updated in a later commit
so we can then close D16984.
Reviewed By: sergey, LazyDodo
This functionality is related only to debugging of SYCL implementation
via single-threaded CPU execution and is disabled by default.
Host device has been deprecated in SYCL 2020 spec and we removed it
in 305b92e05f.
Since this is still very useful for debugging, we're restoring a
similar functionality here through SYCL 2020 Host Task.
