sycl: add ROLL operation support#16665
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NeoZhangJianyu merged 6 commits intoggml-org:masterfrom Oct 27, 2025
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October 19, 2025 15:13
- Implement ggml_sycl_roll function for F32 tensors - Add multi-axis roll operation with SYCL kernel - Support all 4 tensor dimensions with proper shift normalization - Add roll.cpp and roll.hpp to SYCL backend - Update backend dispatch and supports_op for GGML_OP_ROLL - Tests: 17662/17662 pass with identical CPU reference results
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@ggerganov @NeoZhangJianyu, |
added 2 commits
October 21, 2025 14:49
- Fix EditorConfig violations in ggml/src/ggml-sycl/roll.cpp - Remove trailing spaces from lines 6, 11, 28, 47, 58, 60
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Hi @CISC @NeoZhangJianyu |
NeoZhangJianyu
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Oct 23, 2025
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It's good job!
Thank you!
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Hi @NeoZhangJianyu @CISC! |
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The last commit changed the whole implementation and warrants a re-review. |
Anico2
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to Anico2/llama.cpp
that referenced
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Jan 15, 2026
* sycl: add ROLL operation support - Implement ggml_sycl_roll function for F32 tensors - Add multi-axis roll operation with SYCL kernel - Support all 4 tensor dimensions with proper shift normalization - Add roll.cpp and roll.hpp to SYCL backend - Update backend dispatch and supports_op for GGML_OP_ROLL - Tests: 17662/17662 pass with identical CPU reference results * fix: remove trailing whitespace from roll.cpp - Fix EditorConfig violations in ggml/src/ggml-sycl/roll.cpp - Remove trailing spaces from lines 6, 11, 28, 47, 58, 60 * ci: retrigger * sycl: remove wait() calls from ROLL operation * fix: editorconfig — LF endings + final newline for roll.hpp --------- Co-authored-by: tamarPal <tamarPal@example.com>
blime4
referenced
this pull request
in blime4/llama.cpp
Feb 5, 2026
* sycl: add ROLL operation support - Implement ggml_sycl_roll function for F32 tensors - Add multi-axis roll operation with SYCL kernel - Support all 4 tensor dimensions with proper shift normalization - Add roll.cpp and roll.hpp to SYCL backend - Update backend dispatch and supports_op for GGML_OP_ROLL - Tests: 17662/17662 pass with identical CPU reference results * fix: remove trailing whitespace from roll.cpp - Fix EditorConfig violations in ggml/src/ggml-sycl/roll.cpp - Remove trailing spaces from lines 6, 11, 28, 47, 58, 60 * ci: retrigger * sycl: remove wait() calls from ROLL operation * fix: editorconfig — LF endings + final newline for roll.hpp --------- Co-authored-by: tamarPal <tamarPal@example.com>
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Summary
Implements the ROLL operator for the SYCL backend, enabling multi-dimensional tensor rolling on SYCL devices (Intel GPUs). Provides efficient circular shifts along tensor axes. The changes are focused and follow SYCL patterns.
Changes
roll.cppwith multi-axis supportggml-sycl.cppImplementation
range<3>following existing SYCL patternsTesting
Performance
Compatibility