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[SYCL] Add work_group_num_dim metadata #13600
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Original file line number | Diff line number | Diff line change |
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@@ -95,13 +95,13 @@ if(SYCL_PI_UR_USE_FETCH_CONTENT) | |
endfunction() | ||
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set(UNIFIED_RUNTIME_REPO "https://github.com/oneapi-src/unified-runtime.git") | ||
# commit 056d653264034e546d8b8f493e1d9f65c697829b | ||
# Merge: b7c89302 bbb04b65 | ||
# commit 8cdd099ae3d1a34d3bcd7cbed7f5745c3dc8e112 | ||
# Merge: fc9bb61b c893a3c4 | ||
# Author: Kenneth Benzie (Benie) <[email protected]> | ||
# Date: Fri May 17 15:11:12 2024 +0100 | ||
# Merge pull request #1512 from DBDuncan/duncan/fix_pi_mem_leak | ||
# [Bindless][Exp] Remove phMem argument from bindless image creation functions | ||
set(UNIFIED_RUNTIME_TAG 056d653264034e546d8b8f493e1d9f65c697829b) | ||
# Date: Mon May 20 15:50:02 2024 +0100 | ||
# Merge pull request #954 from jchlanda/jakub/rqwgs_hip | ||
# [HIP] Handle required wg size attribute in HIP | ||
set(UNIFIED_RUNTIME_TAG 8cdd099ae3d1a34d3bcd7cbed7f5745c3dc8e112) | ||
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fetch_adapter_source(level_zero | ||
${UNIFIED_RUNTIME_REPO} | ||
|
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3 changes: 0 additions & 3 deletions
3
sycl/test-e2e/Basic/reqd_work_group_size_matches_dimensions.cpp
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I always get confused with this: above we add, 'z', then 'y' and then 'x'. But if 'z' or 'y' were missing, when you fill '1' you are adding the 1s after 'x'. Does this lead to the right behavior?
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If it's any consolation, I have to refresh my understanding of this every thing it pops up. The dimension-flipping happens based on the dimensionality, so:
3D: x -> z, y -> y and z -> x, e.g. {32, 16, 8} -> {8, 16, 32}. No padding needed.
2D: x -> y and y -> x, e.g. {32, 16} -> {16, 32}. Padding is added at the end, i.e. {16, 32, 1}.
1D: x -> x, e.g. {32} -> {32}. Padding is added at the end, i.e. {32, 1, 1}.
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Yeap, it's exactly how @steffenlarsen explains it.
The way to think about it is that SYCL allows for non-3-dims wg sizes, however we are using openCL's mechanism to pass it to the backend. So, the flipping has to happen first in order to preserve the SYCL's semantics, only after that we pad, to align with openCL.