[DRAFT] [SYCL][E2E][USM] Add P2P USM residency test for L0 v2 adapter#21944
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ldorau wants to merge 3 commits intointel:syclfrom
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[DRAFT] [SYCL][E2E][USM] Add P2P USM residency test for L0 v2 adapter#21944ldorau wants to merge 3 commits intointel:syclfrom
ldorau wants to merge 3 commits intointel:syclfrom
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- Skip peers with disabled P2P in makeProvider (USM pool creation) - Add urUsmP2PEnablePeerAccessExp / urUsmP2PDisablePeerAccessExp - Track per-device peer status in ur_device_handle_t_::peers[] - Update existing USM pool residency on P2P enable/disable Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com>
- Fill in three placeholder multi-device tests in memory_residency.cpp - Tests verify P2P-driven residency: absent-on-peer without P2P, enable/disable state machine checks, end-to-end data transfer Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com>
Adds sycl/test-e2e/USM/P2P/p2p_usm_residency.cpp to verify that the Level Zero v2 adapter restricts USM device memory residency to only those peer devices for which P2P access has been explicitly enabled via ext_oneapi_enable_peer_access. Phase 1 (P2P disabled): allocates 1 MB on dev0 and checks that dev1 free memory does not decrease, proving the allocation is not made resident on dev1. Phase 2 (P2P enabled): allocates 1 MB on dev0 and checks that dev1 free memory decreases by at least the allocation size, proving the allocation is resident on dev1. Also adds the 'two-or-more-gpu-devices' lit feature to lit.cfg.py, set when sycl-ls reports at least two GPU devices. The test uses this feature to skip on single-GPU machines. Signed-off-by: Lukasz Dorau <lukasz.dorau@intel.com>
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