[SYCL][E2E] Add lit feature to check if multi-device emulation is supported #17700
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yingcong-wu
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Closing for now in favor of #17691 |
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CreateMultipleRootDevices=[num] environment variable is used in some tests to emulate multiple devices.
It is not guaranteed to be always supported. For example, ZE_AFFINITY_MASK=0 can be set which will make this feature unusable, or in some scenarios when docker container doesn't have required system directory mappings this feature also may not work, etc.
So, create a lit feature which checks if such multi-device emulation works (it is a NEO feature, so can be supported only for opencl:gpu or level_zero:gpu)