v3.8.2

This is a patch release containing the following changes to v3.8.1:

• Fixed performance regression for f32 convolution primitive on processors with Intel AVX-512 instruction set support (5f3af68)
• Introduced support for f16 destination in int8 matmul and int8 inner product on x64 CPUs (53fd12a, 22e252c, f5b2d7f, e4e2f1c)
• Improved RNN primitive performance on processors with Intel AVX2 instruction set support (71e5d81, eb27db2, dd4e627, ff134e0, 5a86c1f, e9395ae)
• Improved fp32 matmul performance on processors with Intel AVX-512 instruction set support (1119339)
• Fixed segmentation fault in f32 binary primitive with broadcast on x64 processors (2082e98)
• Fixed correctness issue in f64 convolution weight gradient with bias on Intel Arc GPUs (a00bfab)
• Updated spdlog component to version 1.15.3 (dbb3629)
• Fixed potential undefined behavior in convolution on Intel GPUs (5ac3e31)
• Fixed segmentation fault in convolution implementation with trivial filter on Intel CPUs (908c5fc, f0a0eee)
• Fixed segmentation fault in f16 convolution with odd dimensions on processors with Intel AVX10.1 instruction set support (78d6835)
• Improved convolution primitive descriptor creation time on x64 processors (e9c5366, fd9dc58, f1d038e)
• Fixed performance regression in f16 matmul with int4 weights on Intel Arc Graphics B-series (38d761b)
• Improved bf16 matmul performance on processors with Intel AMX instruction set support (0887aec)
• Fixed correctness issue in f32 RNN primitive on processors with Intel AMX instruction set support (460a014)

v3.10-rc

Performance Optimizations

Intel Architecture Processors

• Improved performance on future Intel Xeon processors with Intel AVX 10.2 and Intel AMX instruction sets support.
  This functionality is not dispatched by default and requires opt-in with environment variable ONEDNN_MAX_CPU_ISA=AVX10_2_512_AMX_2.
• Improved performance on future Intel Core processors with Intel AVX 10.2 instruction set support. This functionality is not dispatched by default and requires opt-in with environment variable ONEDNN_MAX_CPU_ISA=AVX10_2_512.
• Improved performance of matmul primitive on processors with Intel AMX support.
• Improved performance of f32 matmul primitive for GEMV cases on on processors with Intel AVX2 instruction set support.
• Improved matmul performance with int4 and int8 compressed weights and per-channel zero-points.
• Improved f32 matmul performance with int4 and int8 compressed weights on processors with Intel AVX2 and Intel AVX512 instruction set support.
• Improved bf16 matmul performance with int4 and int8 compressed weights on processors with Intel AVX512, Intel DL Boost and bfloat16 instruction set support.
• Improved performance of int8 convolution primitive when using zero points.
• Improved performance of int8 matmul and inner product primitives with fp16 destination.
• Improved performance of f32 and bf16 convolution primitive with int8 destination.
• Improved performance of RNN primitive on processors with Intel AVX2 instruction set support when using OpenMP runtime.
• Improved performance of subgraphs containing sequence of multiple binary ops with Graph API.

Intel Graphics Products

• Improved GEMM performance for small batch size on Intel Core Ultra processors (Series 2) (formerly Lunar Lake).
• Improved matmul performance for Qwen2-7B shapes on Intel Arc graphics (formerly DG2) and Intel Arc Graphics for Intel Core Ultra processors (formerly Arrow Lake-H).
• Improved int8 matmul performance with int4 weights and per-tensor zero-points.
• Improved bf16 matmul performance with fp8 weights.
• Graph API optimizations:
  • Improved Scaled Dot Product Attention (SDPA) subgraph performance for inference when relaxed accumulation mode is enabled on Intel Core Ultra processors (formerly Meteor Lake).
  • Improved SDPA and GQA subgraphs performance when using host-side scalars.
  • Improved performance of GQA subgraph for 2nd token scenarios.
  • Improved performance of subgraphs containing sequence of multiple binary ops.
  • Improved performance of Grouped Query Attention (GQA) subgraphs for training forward and backward propagation.

AArch64-based Processors

• Improved performance of reorder primitive
• Improved performance of bf16 convolutions
• Improved performance of convolutions on 128-bit SVE platforms
• Improved performance of eltwise on Arm® Neoverse™ N1

Functionality

Functional API

• Introduced host-side scalar memory objects. This functionality allows passing host-side scalars instead of device memory objects when using oneDNN with OpenCL or SYCL runtimes. Host-side scalars are currently supported in matmul and convolution primitives on Intel GPUs.

• Introduced support for pre-computed reductions in matmul primitive. This functionality is intended to improve performance in case of int8 activations and int8 weights with zero-point.

Graph API

• Introduced host_scalar property for logical tensors. This functionality allows passing host-side scalars instead of device memory objects when using oneDNN with OpenCL or SYCL runtimes. Host-side scalars are currently supported to define attention scale, sequence length, and the negative infinity value in SDPA/GQA subgraphs.
• Introduced accumulation mode attribute support in Matmul op. This attribute allows relaxing fp32 accumulation requirements to achieve performance benefits on some platforms.

Intel Graphics Products

• Introduced support for fp4 weights in matmul primitive.
• Introduced support for grouped quantization with group size 16 in matmul with int8 compressed weights.
• Introduced support group size 16 int8 for decompressed weight with regular weights decompression.

Intel Architecture Processors

• Introduced fp4 weights support for fp32 matmul and convolution for future Intel Xeon processors with Intel AVX10.2 instruction set support.

Usability

• Extended diagnostics available in verbose mode for primitive descriptor creation issues.
• Extended dispatch diagnostics in verbose mode output for primitives implementations on Intel GPUs.

AArch64-based Processors

• Fixed crashes in backward-pass convolutions
• Fixed numerical errors in 4D matmul primitives
• Fixed numerical errors in low-precision convolutions
• Fixed numerical errors in reorders with compensation
• Fixed illegal-instruction crashes on Arm® Neoverse™ N1
• Fixed crashes in binary primitive in Debug builds
• Fixed segmentation fault in eltwise_log post-ops for large kernels

Deprecated Functionality

• BLAS-like API including dnnl::sgemm, dnnl::gemm_u8s8s32, and dnnl::gemm_s8s8s32 functions is deprecated and will be removed in future releases. If you are using this API consider switching to matmul primitive.

Breaking Changes

AArch64-based Processors

• Bumped the minimum required Arm® Compute Library 52.4.0

Thanks to our Contributors

This release contains contributions from the project core team as well as Andrei Hutu @Anndrey24,
Anna Sztukowska @asztukow, Arseniy Obolenskiy @aobolensk, Avanish Tiwari @Tiwari-Avanish, Daniel Kuts @apach301, Daniel Whittaker @danwhittaker-arm, Deeksha Kasture @kasturedeeksha, George Nash @georgen117, Henry Gardiner @henry-gar, Keanu Czirjak @keanucz, Krishna Sai @krishnasai-mcw, Marek Michalowski @michalowski-arm, Sheldon Robinson @sheldonrobinson, @Shreyas-fuj, Viktoriia Gvozdeva @vgvozdeva, Xiang1 Guo, Yejing Lai @Yejing-Lai, Yonghao Gu, Yusuf Butt @UseTheForce007, Zhibo Li @zhili03, @almayne, @co63oc, @focusunsink, @gassan-arm, @jstachowintel, @pmanczak, @puneetmatharu, @raistefintel, @vishwascm, @vyevtyus, @zhangfeiv0, @zhangjian29, and @xiazhuozhao.

v3.9.2

This is a patch release containing the following changes to v3.9.1:

• Fixed correctness issue in int8 convolution on processors with Intel AVX2 and Intel DL Boost instruction set support (a7c4079, 78e781f)
• Fixed performance regression for f32 convolution primitive on processors with Intel AVX-512 instruction set support (74f23b4)
• Fixed performance regression for RNN primitive with LBR GRU cell type on Intel Arc GPUs (ae2844e)
• Fixed performance regression for int8 convolution primitive when using zero points (dbb8484)
• Fixed segmentation fault in matmul primitive when using ONEDNN_VERBOSE=all (7310aa2)
• Fixed correctness issue in multi-dimensional matmul primitive on Intel Xeon processors with Intel AMX instruction set support (formerly Sapphire Rapids and Granite Rapids) (642d18b)
• Reduced problem size in test_sdpa_decomp test (9bff06e)
• Restricted test_sdpa_decomp and test_mqa_decomp tests to OMP or THREADPOOL CPU runtimes (3cd9170)
• Fixed illegal instruction issue in pooling primitive on processors with Intel SSE4.1 support (d907c47)
• Fixed segmentation fault issue in f16 backward convolution primitive on processors with Intel AVX2 with Intel DL Boost with float16 and bfloat16 support (50cc228, fcc7e5e)
• Restored support for int8 matmul with per_oc scales and zero points on Intel Arc GPUs (1a5a454, 04c22c9)

v3.9.1

This is a patch release containing the following changes to v3.9:

• Reduced sizes in Graph API SDPA examples (257d689)
• Fixed correctness issue in bf16 depthwise convolution with bf16 bias on AArch64 CPUs (218b41d)
• Changed Intel GPU data alignment check from error to warning (5c5008a)
• Improved bf16 matmul performance on processors with Intel AMX instruction set support (54b6354, 30c4d8d)
• Fixed PowerPC64 build by adding -mcpu=power10 and -mmma flags (02ca915)
• Introduced support for f16 destination in int8 matmul and int8 inner product on x64 CPUs (a62ed6b, 53c0a66, 0750043, 4f0f068)
• Introduced support per_tensor zero-points in int8 matmul on Intel GPUs (db8e8ff, f783164, 4d458df, 80453a0, 7f90d50, a2200e2)
• Fixed correctness issue in int8 reorder for cases with compensation on x64 CPUs (771ca54)

v3.9

Performance Optimizations

Intel Architecture Processors

• Introduced initial support for future Intel Xeon processors with Intel AVX 10.2 and Intel AMX instruction sets support.
  This functionality is not dispatched by default and requires opt-in with environment variable ONEDNN_MAX_CPU_ISA=AVX10_2_512_AMX_2.
• Introduced initial support for future Intel Core processors with Intel AVX 10.2 instruction set support. This functionality is not dispatched by default and requires opt-in with environment variable ONEDNN_MAX_CPU_ISA=AVX10_2_512.
• Improved initialization time for convolution primitive when a large number of threads is used by introducing a new thread partition estimation and adjusting several blocking parameters.
• Improved performance of fp8 convolution primitive with scales and bf16 output
• Improved performance of matmul primitive with post-ops on processors with Intel AMX support
• Improved performance of RNN primitive for LBR_GRU and VANILLA_LSTM cell types on processors with Intel AVX2 instruction set support
• Improved performance of the following subgraphs with Graph API:
  • Scaled Dot Product Attention (SDPA) with implicit causal mask.
  • Grouped Query Attention (GQA) flavor specific for GEMMA models.

Intel Graphics Products

• Improved performance on Intel GPUs based on Xe3 architecture.
• Improved matmul performance for Intel Arc Graphics for Intel Core Ultra processors (Series 2) (formerly Lunar Lake).
• Improved RNN primitive performance with LBR_GRU cell type.
• Improved int8 convolution performance with plain weights and trivial filter.
• Improved convolution performance with NCHW activations with 1x1 filter and unit strides.
• Improved fp32 softmax performance.
• Improved performance of reorder when used with USM host memory.
• Improved performance of the following subgraphs with Graph API:
  • fp32 SDPA with implicit causal mask.
  • fp16 SDPA on Intel GPUs without Intel XMX cores.

AArch64-based Processors

• Improved int8 convolution performance.
• Improved bf16 depthwise convolution performance.
• Improved f16 matmul performance with Arm Compute Library (ACL).

Functionality

Functional API

• Introduced Root Mean Square Normalization (RMSNorm) mode for layer normalization primitive. This functionality is optimized for Intel CPUs and Intel GPUs.
• Sparse memory objects and sparse matmul are promoted to production status.

Graph API

• Introduced support for tanh approximation in GELU operation.
• Extended Graph API Softmax operation to support optional stats output.
• Introduced fusion support for SDPA training forward and backward propagation.
• Introduced fusion support for SDPA with bottom-right implicit causal mask.
• Introduced make_scalar_tensor() API for engine-agnostic scalar tensor creation.

Microkernel API

• Introduced support for fp8 data type.

Intel Architecture Processors

• Introduced support for select algorithm in binary post-op.
• Introduced source, destination, and weight scales support in fp8 convolution and deconvolution primitives.

Intel Graphics Products

• Introduced support for select algorithm in binary primitive.

Generic GPU Vendor

• Introduced support for RNN Vanilla backward propagation.

Usability

• Enabled build with -Wundef compiler flag.
• [Experimental] Introduced support for kernel compilation with SYCL kernel compiler extension.

Validation

• Improved benchdnn performance by optimizing input data filling and testing results comparison steps.
• Improved benchdnn graph driver performance mode via adding CPU memory pool for allocator.

Known Limitations

• The group normalization with normalization_flags::use_scale specified produces incorrect results for backward propagation kind in oneDNN v3.9 and earlier.
• Binary primitive with certain shapes and Graph API SDPA with bottom right causal mask may hang with SYCL debug runtime on Windows.
• fp8 matmul primitive may sporadically produce incorrect results on Intel Arc B-series graphics.
• int8 inner product primitive with tensors exceeding 4 Gb in size may produce incorrect results on Intel Data Сenter GPU Max series.
• bf16 pooling with tensors exceeding 4 Gb in size may produce incorrect results on Intel Data Сenter GPU Max series.
• bf16/fp16 matmul with large inner dimension has a performance regression on Intel Data Сenter GPU Max Series.
• bf16/fp16 convolution with NCHW activations has a performance regression on Intel Data Сenter GPU Max Series.
• Softmax with non-trivial strides and blocked format may produce incorrect results.
• bf16 layer normalization backpropagation may produce incorrect results on Intel Data Сenter GPU Max Series.

Deprecated Functionality

• BLAS-like API including dnnl::sgemm, dnnl::gemm_u8s8s32, and dnnl::gemm_s8s8s32 functions is deprecated and will be removed in future releases. If you are using this API consider switching to matmul primitive.

Thanks to our Contributors

This release contains contributions from the project core team as well as Aditya Tewari @aditew01, Alexander Simonov @asimonov1, @Anallear, Anna Sztukowska @asztukow, Avanish Tiwari @Tiwari-Avanish, Dmitriy Ovchinnikov @inteldimitrius, Kasture Deeksha, Krishna Sai @krishnasai-mcw, Manaal @manaalmj, Marek Michalowski @michalowski-arm, Orel Yehuda @yehudaorel, Ruqiu Cao @rcao8, Tsao Zhong @CaoZhongZ, Viktoriia Gvozdeva @vgvozdeva, Yair Obodovsky @yair-obodovsky, Ye Tao @taoye9, Yuanyuan Chen @cyyever, @gausah-arm, @karmeh01, @pmanczak, and @zhangfeiv0. We would also like to thank everyone who asked questions and reported issues.

v3.9-rc

Performance Optimizations

Intel Architecture Processors

• Introduced initial support for future Intel Xeon processors with Intel AVX 10.2 and Intel AMX instruction sets support.
  This functionality is not dispatched by default and requires opt-in with environment variable ONEDNN_MAX_CPU_ISA=AVX10_2_512_AMX_2.
• Introduced initial support for future Intel Core processors with Intel AVX 10.2 instruction set support. This functionality is not dispatched by default and requires opt-in with environment variable ONEDNN_MAX_CPU_ISA=AVX10_2_512.
• Improved initialization time for convolution primitive when a large number of threads is used by introducing a new thread partition estimation and adjusting several blocking parameters.
• Improved performance of fp8 convolution primitive with scales and bf16 output
• Improved performance of matmul primitive with post-ops on processors with Intel AMX support
• Improved performance of RNN primitive for LBR_GRU and VANILLA_LSTM cell types on processors with Intel AVX2 instruction set support
• Improved performance of the following subgraphs with Graph API:
  • Scaled Dot Product Attention (SDPA) with implicit causal mask.
  • Grouped Query Attention (GQA) flavor specific for GEMMA models.

Intel Graphics Products

• Improved performance on Intel GPUs based on Xe3 architecture.
• Improved matmul performance for Intel Arc Graphics for Intel Core Ultra processors (Series 2) (formerly Lunar Lake).
• Improved RNN primitive performance with LBR_GRU cell type.
• Improved int8 convolution performance with plain weights and trivial filter.
• Improved convolution performance with NCHW activations with 1x1 filter and unit strides.
• Improved fp32 softmax performance.
• Improved performance of reorder when used with USM host memory.
• Improved performance of the following subgraphs with Graph API:
  • SDPA with implicit causal mask.
  • SDPA with bottom-right implicit causal mask.
  • fp32 SDPA.
  • fp16 SDPA on Intel GPUs without Intel XMX cores.

AArch64-based Processors

• Improved int8 convolution performance.
• Improved bf16 depthwise convolution performance.
• Improved f16 matmul performance with Arm Compute Library (ACL).

Functionality

Functional API

• Introduced Root Mean Square Normalization (RMSNorm) mode for layer normalization primitive. This functionality is optimized for Intel CPUs and Intel GPUs.
• Sparse memory objects and sparse matmul are promoted to production status.

Graph API

• Introduced support for tanh approximation in GELU operation.
• Extended Graph API Softmax operation to support optional stats output.
• Introduced support for SDPA training forward propagation and backpropagation.

Microkernel API

• Introduced support for fp8 data type.

Intel Architecture Processors

• Introduced support for select algorithm in binary post-op.
• Introduced source, destination, and weight scales support in fp8 convolution and deconvolution primitives.

Intel Graphics Products

• Introduced support for select algorithm in binary primitive.

Generic GPU Vendor

• Introduced support for RNN Vanilla backward propagation.

Usability

• Enabled build with -Wundef compiler flag.
• [Experimental] Introduced support for kernel compilation with SYCL kernel compiler extension.

Validation

• Improved benchdnn performance by optimizing input data filling and testing results comparison steps.

Known Limitations

Deprecated Functionality

• BLAS-like API including dnnl::sgemm, dnnl::gemm_u8s8s32, and dnnl::gemm_s8s8s32 functions is deprecated and will be removed in future releases. If you are using this API consider switching to matmul primitive.

Thanks to our Contributors

This release contains contributions from the project core team as well as Aditya Tewari @aditew01, Alexander Simonov @asimonov1, @Anallear, Anna Sztukowska @asztukow, Avanish Tiwari @Tiwari-Avanish, Dmitriy Ovchinnikov @inteldimitrius, Kasture Deeksha, Krishna Sai @krishnasai-mcw, Manaal @manaalmj, Marek Michalowski @michalowski-arm, Orel Yehuda @yehudaorel, Ruqiu Cao @rcao8, Tsao Zhong @CaoZhongZ, Viktoriia Gvozdeva @vgvozdeva, Yair Obodovsky @yair-obodovsky, Ye Tao @taoye9, Yuanyuan Chen @cyyever, @gausah-arm, @karmeh01, @pmanczak, and @zhangfeiv0. We would also like to thank everyone who asked questions and reported issues.

v3.8.1

This is a patch release containing the following changes to v3.8:

• Fixed correctness issue in reorder primitive with non-trivial strides on Intel CPUs (a762d32)
• Fixed runtime error in convolution weight gradient on Xe2 architecture-based Intel GPUs (a8fac73, c409ef9)
• Fixed performance regression in bf16 convolution on Intel Datacenter GPU Max Series (98170d0, c6bae4a, c5edd53, bb1a591)
• Improved performance of fp16 matmul with fp8 compressed weights on Intel GPUs (58f3ec1, abff176, ffd7dd3, 3b1e855, 2e140de, 3429f79)
• Fixed runtime error in fp16 pooling primitive on Xe2 architecture based Intel GPUs (c0f6b6d)
• Improved performance of fp16 matmul with int4 weights and 32 < m <= 64 on Intel GPUs (2fa7072)
• Fixed correctness issues in bf16 matmul with 3 or more dimensional tensors on processors with Intel AMX support (dd20965, ea1b4a1)
• Fixed performance regression in fp16 or bf16 matmul with transposed source and weight tensors on Intel Datacenter GPU Max Series (e45e1aa)
• Improved performance of bf16 matmul with int4 weights on Intel GPUs (7a15c23)
• Fixed runtime error in fp16 SDPA subgraph with head size 512 on Intel Core Ultra (Series 2) processor integrated GPU (bde6985)

v3.8

Performance Optimizations

Intel Architecture Processors

• Improved matmul and inner product primitives performance on processors with Intel AMX instruction set support.
• Improved performance of convolution and inner product primitives on processors with Intel AVX2 instruction set support.
• Improved performance of int8 convolution support with zero points.
• Improved fp32 convolution performance with fp16 and bf16 compressed weights on processors with Intel AVX2 or Intel AVX-512 instruction set support.
• Improved fp16/bf16 depthwise convolution performance with fp32 bias or sum post-ops or dilation.
• Improved bf16 pooling backpropagation performance.
• Improved binary post-ops performance with per_w broadcast.

Intel Graphics Products

• Improved performance on Intel Arc graphics for future Intel Core Ultra processors (code name Panther Lake).
• Improved convolution performance on:
  • Intel Arc Graphics for Intel Core Ultra processor series 2 (formerly Lunar Lake).
  • Intel Arc B-series discrete graphics (formerly Battlemage).
• Improved int8 matmul performance with zero-points support for source and weight tensors.
• Improved f4_e2m1 and f4_e3m0 matmul and reorder performance.
• Improved performance of the following subgraphs with Graph API:
  • Scaled Dot Product Attention (SDPA) with int4 and int8 compressed key and value.
  • fp16/bf16 SDPA with fp32 intermediate data types. Using fp32 intermediate data types is recommended.
  • SDPA with head size 512 and 576.
  • Grouped Query Attention (GQA) with 5D input tensors.

AArch64-based Processors

• Improved fp16 reorder performance.
• Improved int8 matmul performance.
• Improved bf16 inner product forward propagation performance with Arm Compute Library (ACL).
• Improved bf16 eltwise performance.
• Improved convolution performance on processors with SVE support with ACL.

Functionality

Common

• Extended Graph API Softmax operation to support inf_as_zero mode. This functionality enables SDPA subgraph compliant with Pytorch Safe Softmax semantics.

Intel Architecture Processors

• Introduced support for f32 convolution with fp16 compressed weights.
• Enabled int8/int4 compressed weights support in matmul primitive.

Intel Graphics Products

• Introduced select algorithm support in binary primitive.
• Introduced support for f4_e2m1 and f4_e3m0 data types in convolution primitive.
• Introduced support for the GenIndex operation in Graph API.

Generic GPU Vendor

• Introduced support for:
  • Vanilla RNN forward propagation.
  • Inner product backpropagation.
  • Group normalization.
• Improved accuracy of inner product primitive with sum post-ops for large shapes.

NVIDIA GPUs

• Introduced Graph API support.

Usability

• Added support for group normalization primitive with ONEDNN_ENABLE_PRIMITIVE build option.
• Enabled support for ROCm 6 on AMD GPUs.
• Improved CMake integration for oneDNN installation with Nvidia backend enabled.
• Reduced memory footprint for matmul primitive when using ACL.

Validation

• Added benchdnn option --execution-mode to test oneDNN functionality with SYCL Graph record/execute mode.
• Extended benchdnn option --cold-cache with support for cold TLB mode.
• Added benchdnn option --bia-dt to control bias data type for matmul, inner product, convolution, and deconvolution primitives.
• Extended syntax of benchdnn --dt option in Graph API driver to manage data types of individual tensors in a pattern.

Deprecated Functionality

• BLAS-like API including dnnl::sgemm, dnnl::gemm_u8s8s32, and dnnl::gemm_s8s8s32 functions is deprecated and will be removed in future releases. If you are using this API consider switching to matmul primitive.

Breaking Changes

• Removed the experimental Graph Compiler backend for Graph API.

Thanks to our Contributors

This release contains contributions from the project core team as well as Aditya Tewari @aditew01, Alexander Simonov @asimonov1, Denis @redradist, Dmitriy Ovchinnikov @inteldimitrius, Eliezer Weissmann @eliezerweissmann, Hubert Maciak @hmaciak, Ilya Lavrenov @ilya-lavrenov, James McGregor @Jmc18134, @jstachowintel, Marek Michalowski @michalowski-arm, Maria Zhukova @mzhukova, Orel Yehuda @yehudaorel, Ravi Pushkar @rpushkarr, Renato Barros Arantes @renato-arantes, @Shreyas-fuj, Shu Chen @shu1chen, Viktoriia Gvozdeva @vgvozdeva, Yair Obodovsky @yair-obodovsky, and @zhangfeiv0.

v3.7.3

This is a patch release containing the following changes to v3.7.2:

• Fixed correctness issue in matmul with non-trivial strides for the first tensor on processors with Intel AMX instruction set support (e18c622)
• Removed spurious warning messages for SDPA subgraph on Intel GPUs (05541bb, 9e9a3a6)
• Fixed segfault in fp32 matmul with bf16 math mode on processors with Intel AVX2 instruction set support (7d495ae)
• Fixed performance regression in bf16 3D convolution backpropagation on processors with Intel AVX-512 and Intel DL Boost instruction set support (c38e02c, 67afc74)
• Worked around GCC 12.3 bug causing accuracy issues in fp8 functionality on Intel GPUs (69b38d7)
• Removed -fcf-protection build option for GCC 7 and earlier versions (813725d)

v3.8-rc

Performance Optimizations

Intel Architecture Processors

• Improved matmul and inner product primitives performance on processors with Intel AMX instruction set support.
• Improved performance of convolution and inner product primitives on processors with Intel AVX2 instruction set support.
• Improved performance of int8 convolution support with zero points.
• Improved fp32 convolution performance with fp16 and bf16 compressed weights on processors with Intel AVX2 or Intel AVX-512 instruction set support.
• Improved fp16/bf16 depthwise convolution performance with fp32 bias or sum post-ops or dilation.
• Improved bf16 pooling backpropagation performance.
• Improved binary post-ops performance with per_w broadcast.

Intel Graphics Products

• Improved performance on Intel GPUs based on Xe3 architecture.
• Improved convolution performance on:
  • Intel Arc Graphics for Intel Core Ultra (Series 2, formerly Lunar Lake).
  • Intel Arc B-series discrete graphics (formerly Battlemage).
• Improved int8 matmul performance with zero-points support for source and weight tensors.
• Improved f4_e2m1 and f4_e3m0 matmul and reorder performance.
• Improved performance of the following subgraphs with Graph API:
  • Scaled Dot Product Attention (SDPA) with int4 and int8 compressed key and value.
  • fp16/bf16 SDPA with fp32 intermediate data types. Using fp32 intermediate data types is recommended.
  • SDPA with head size 512 and 576.
  • Grouped Query Attention (GQA) with 5D input tensors.

AArch64-based Processors

• Improved fp16 reorder performance.
• Improved int8 matmul performance.
• Improved bf16 inner product forward propagation performance with Arm Compute Library (ACL).
• Improved convolution performance on processors with SVE support with ACL.

Functionality

Common

• Extended Graph API Softmax operation to support inf_as_zero mode. This functionality enables SDPA subgraph compliant with Pytorch Safe Softmax semantics.

Intel Architecture Processors

• Introduced support for f32 convolution with fp16 compressed weights.
• Enabled int8/int4 compressed weights support in matmul primitive.

Intel Graphics Products

• Introduced select algorithm support in binary primitive.
• Introduced support for f4_e2m1 and f4_e3m0 data types in convolution.
• Introduced support for the GenIndex operation in Graph API.

Generic GPU Vendor

• Introduced support for:
  • Vanilla RNN forward propagation
  • Inner product backpropagation
  • Group normalization
• Improved accuracy of inner product primitive with sum post-ops for large shapes.

NVIDIA GPUs

• Introduced Graph API support.

Usability

• Added support for Group Normalization primitive with ONEDNN_ENABLE_PRIMITIVE build option.
• Enabled support for ROCm 6 on AMD GPUs.
• Improved CMake integration for oneDNN installation with Nvidia backend enabled.
• Reduced memory footprint for matmul primitive when using ACL.

Validation

• Added benchdnn option --execution-mode to test oneDNN functionality with SYCL Graph record/execute mode.
• Extended benchdnn option --cold-cache with support for cold TLB mode.
• Added benchdnn option --bia-dt to control bias data type for matmul, inner product, convolution, and deconvolution.
• Extended syntax of benchdnn --dt option in Graph API driver to manage data types of individual tensors in a pattern.

Breaking Changes

• Removed the experimental Graph Compiler backend for Graph API.

Thanks to our Contributors

This release contains contributions from the project core team as well as Aditya Tewari @aditew01, Alexander Simonov @asimonov1, Denis @redradist, Dmitriy Ovchinnikov @inteldimitrius, Eliezer Weissmann @eliezerweissmann, Hubert Maciak @hmaciak, Ilya Lavrenov @ilya-lavrenov, James McGregor @Jmc18134, @jstachowintel, Marek Michalowski @michalowski-arm, Maria Zhukova @mzhukova, Orel Yehuda @yehudaorel, Ravi Pushkar @rpushkarr, Renato Barros Arantes @renato-arantes, @Shreyas-fuj, Shu Chen @shu1chen, Viktoriia Gvozdeva @vgvozdeva, Yair Obodovsky @yair-obodovsky, and @zhangfeiv0.