feat(compute): GPU alloc/upload for fused encoder activation#88
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…rProvider Enable callers to allocate persistent GPU buffers and upload weight data for the fused encoder kernel. Without this, CPU-backed weight tensors have no device pointer and the fused path always falls back to per-op. - AllocDeviceFloat32: pool-managed GPU allocation - CopyToDevice: host-to-device memcpy for float32 arrays
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Summary
AllocDeviceFloat32andCopyToDevicetoFusedEncoderProviderinterfaceGPUEngineusing pool allocation andruntime.MemcpyWithout this, the fused encoder path always falls back because
tensorDevPtrreturns nil for CPU-backed tensors created byextractGPUParams.Test plan
go build ./...passesgo test ./compute/passes