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[SYCL][UR][L0 v2] Remove duplicate devices when creating a context #19509

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Merged
merged 1 commit into from
Jul 18, 2025
Merged

[SYCL][UR][L0 v2] Remove duplicate devices when creating a context #19509

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10 changes: 9 additions & 1 deletion unified-runtime/source/adapters/level_zero/v2/context.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -44,12 +44,20 @@ populateP2PDevices(size_t maxDevices,
return p2pDevices;
}

static std::vector<ur_device_handle_t>
uniqueDevices(uint32_t numDevices, const ur_device_handle_t *phDevices) {
std::vector<ur_device_handle_t> devices(phDevices, phDevices + numDevices);
std::sort(devices.begin(), devices.end());
devices.erase(std::unique(devices.begin(), devices.end()), devices.end());
return devices;
}

ur_context_handle_t_::ur_context_handle_t_(ze_context_handle_t hContext,
uint32_t numDevices,
const ur_device_handle_t *phDevices,
bool ownZeContext)
: hContext(hContext, ownZeContext),
hDevices(phDevices, phDevices + numDevices),
hDevices(uniqueDevices(numDevices, phDevices)),
commandListCache(hContext,
{phDevices[0]->Platform->ZeCopyOffloadExtensionSupported,
phDevices[0]->Platform->ZeMutableCmdListExt.Supported}),
Expand Down