feat: device registration #103
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…tics - Split internal implementation headers into a separate include group - Drop redundant explicit default initialization for Device - Add `impl` suffix to CUDA guard implementation files - Unify Arange initialization via DeviceGuardImpl
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chen2021673
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| // stream | ||
| Stream *CudaGuardImpl::GetStream(Device device) const { | ||
| std::call_once(device_stream_flags.at(device.index()), InitSingleStream, device); |
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call_once生命周期是进程级别的，这里可能有点风险（但不大，p4级修复）
chen2021673
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- Drop legacy hardware-specific branching - Convert DeviceGuardImpl base methods to fatal-only fallbacks - Explicitly implement supported CPU runtime behaviors - Validate CUDA device type and index bounds in CudaGuardImpl - Widen DeviceCount return type to prevent truncation
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| streams.push_back(dynamic_cast<const CudaDevice *>(device)->Stream()); | ||
| comms.push_back(device_comm_map_.at(device)); | ||
| streams.push_back(dynamic_cast<infini_train::core::cuda::CudaStream *>( | ||
| core::GetDeviceGuardImpl(device.type())->GetStream(device)) |
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获取Stream的地方很多，是不是也封装一个function，可以放在和GetDeviceGuardImpl同一个位置
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device 注册设计文档：https://gxtctab8no8.feishu.cn/docx/F0CzdkVXCoaxRgxYc3AcFewtnOc?from=from_copylink
Device 现在是一个只维护 type/index 的简单类型，所有运行时方法都由 DeviceGuard/DeviceGuardImpl 提供。
本次 pr 涉及主要改动：