[SYCL] increase igpu cluster limit #6159
Merged
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The original value of GGML_SYCL_MAX_DEVICES is 16. It can't meet the capability in real test environment.
Because 1 GPU could have 2 device IDs in SYCL: level_zero device and opencl device.
In multiple GPUs case, the max devices will be double.
Extend limit for certain iGPU clusters.
cc @ggerganov @NeoZhangJianyu
feel free to merge after CI pass