sycl: use async memory allocation to fix crashes during graph recording #16644
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GGML_SYCL_DISABLE_GRAPHS=0 causes crashes because:
- Host waits are currently unsupported in graph recording mode.
- SYCL malloc / free calls are unsupported in graph recording mode.
The following changes are made to fix SYCL graph functionality:
- When graphs are enabled, use the SYCL async memory extension for temp
buffers which is supported with SYCL graphs.
- For compiler versions that do not support this extension, skip
graphs with the affected op.
- Switch from USM shared to device memory as the async extension
currently just supports device allocations.
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Setting
GGML_SYCL_DISABLE_GRAPHS=0to enable SYCL graphs currently crashes with most use cases because of the following unsupported operations in graph recording regions:The following changes are made to fix SYCL graph functionality:
I have verified functionality with commit a3132c1 of intel/llvm. For earlier compilers that do not support this extension, graphs are disabled for most cases to prevent crashes.