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To use the `gorgonia/cu` package, you can import it and use its functions to perform CUDA operations. Here's an example of how you can modify the previous code to use `gorgonia/cu`: ``` package main import ( "log" "(link unavailable)" "(link unavailable)" ) const ( srcFile = "/path/to/source/video.mp4" dstFile = "/media/usb/video.mp4" bufSize = 1024 * 1024 * 16 ) func main() { // Initialize CUDA device, err := cuda.GetDevice(0) if err != nil { log.Fatal(err) } ctx, err := device.CreateContext(cudart.ctxSchedAuto) if err != nil { log.Fatal(err) } defer ctx.Destroy() // Open source file src, err := os.Open(srcFile) if err != nil { log.Fatal(err) } defer src.Close() // Open destination file dst, err := os.Create(dstFile) if err != nil { log.Fatal(err) } defer dst.Close() // Allocate memory on the GPU srcBuf, err := cu.Malloc(bufSize) if err != nil { log.Fatal(err) } defer srcBuf.Free() dstBuf, err := cu.Malloc(bufSize) if err != nil { log.Fatal(err) } defer dstBuf.Free() // Copy data from source file to GPU (using GPU) buf := make([]byte, bufSize) for { n, err := src.Read(buf) if err != nil { if err != io.EOF { log.Fatal(err) } break } if err := cu.MemcpyHtoD(srcBuf, cu.DevicePtr(buf), uint(n)); err != nil { log.Fatal(err) } // Copy data from GPU to destination file (using GPU) if err := cu.MemcpyDtoH(cu.DevicePtr(buf), srcBuf, uint(n)); err != nil { log.Fatal(err) } if _, err := dst.Write(buf[:n]); err != nil { log.Fatal(err) } } log.Println("File copied successfully!") } ``` Note that you need to replace `"/path/to/source/video.mp4"` and `"/media/usb/video.mp4"` with the actual file paths you want to use for copying. Also, make sure to install the `gorgonia/cu` package and its dependencies before running this code. You can do this by running the following command in your terminal: ``` shell go get (link unavailable) ``` This code uses the `gorgonia/cu` package to perform CUDA operations, such as memory allocation and data transfer between the host and device. The `cu.MemcpyHtoD` and `cu.MemcpyDtoH` functions are used to transfer data between the host and device, and the `cu.DevicePtr` function is used to get a device pointer for the buffer.
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