v0.5

New in CUTLASS SYCL 0.5

Major Architecture Changes

• Xe Rearchitecture (#477): Complete redesign of Xe CuTe atoms with new architecture
  • New MMA atoms for improved performance
  • Enhanced 2D copy atoms (loads, stores, prefetch with VNNI/transpose support)
  • New 2D copy helpers (low-level make_block_2d_copy and high-level make_block_2d_copy_{A,B,C})
  • Generic and optimized reorder atoms for {int4, uint4, int8, uint8, e2m1, e4m3, e5m2} -> {half, bfloat16}
  • Requires IGC version v2.18.5 or later

New Features

• G++ Host Compiler Support (#490): Support for G++ 13 as host compiler

• Migrated syclcompat to this repository as cutlasscompat for better compatibility

  • Fixed compilation issues when using G++ instead of clang++
  • Added new CI workflow for testing G++ host compiler builds
  • Enhanced build system to support -DDPCPP_HOST_COMPILER=g++ option

• Grouped GEMM for Mixed Dtype (#457): Extended grouped GEMM support to mixed precision operations

  • Added support for BF16 + S8 mixed dtype grouped GEMM
  • Added support for FP16 + U4 mixed dtype grouped GEMM
  • New examples: 10_bmg_grouped_gemm_bf16_f16_s8.cpp and 10_bmg_grouped_gemm_f16_u4.cpp

  See the CHANGELOG-SYCL for details of all past releases and updates.