[DOC] Codepin intro update for 2025.0 #2401
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intwanghao
requested changes
Oct 11, 2024
| The above picture shows the data flow graph of the vectorAdd example, which is constructed by a title and execution layer. The execution layer presents a kernel execution and its inputs and outputs. The kernel node shows that kernel ``vectorAdd`` is executed on the stream of the device named GPU0, and also shows the kernel's execution time and source location. All input arguments (``d_a`` node and top ``d_result`` node) are tagged with V0, indicating initial values. The output argument (bottom ``d_result`` node) is tagged with V1 because ``d_result`` is both input and output arguments, and its value changes in the kernel. | ||
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| The nodes ``d_a:V0 ``, ``d_result:V0``, and ``d_result:V1`` are colored red, indicating a value mismatch between the CUDA and SYCL runs. In this case, the result value mismatch is caused by the mismatch of the input argument values, and the mismatch between input argument values may be caused by the different behavior of memory initialization between CUDA and SYCL, as the report states. |
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The ``d_a:V0 `` should be changed to ``d_a:V0``, the space before the last two backticks needs to be removed.
| In the data flow graph, each kernel execution and its input and output arguments are grouped into a layer, presenting a run status of the kernel execution. The value of input and output arguments are tagged with version information in the form of “V<num>”. For example, the initial version is tagged as V0, and once the value of the argument is updated, the version number will be increased. For a specific kernel execution, if there’s a mismatch between CUDA and SYCL results, the mismatched argument node will be colored red. | ||
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| .. figure:: DataFlowGraph.png |
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The path should be ../../_images/DataFlowGraph.png
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Updates made, please review & approve & merge if it looks ok. Thanks!
zhimingwang36
approved these changes
Oct 11, 2024
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Updating Debug with Codepin intro and adding new image for 2025.0 per https://jira.devtools.intel.com/browse/DOC-12786 please review & approve & merge if it looks good.