Copy Buffer to Device — copy

Copy a PJRTBuffer to a different device. Returns a new buffer on the target device; the original buffer is unchanged.

If the buffer already lives in the requested device, no copy is performed.

When the target device belongs to a different client (e.g. copying from CPU to CUDA), the transfer is performed via a host roundtrip.

Usage

copy_buffer(buffer, device)

buffer: (PJRTBuffer)
A PJRT buffer object.
device: (PJRTDevice | character(1))
The target device. A PJRTDevice object or a device specification (e.g., "cpu:0", "cpu:1", "cuda:0").

A new PJRTBuffer on the target device.

if (FALSE) { # plugins_downloaded(c("cpu", "cuda"))
buf <- pjrt_buffer(c(1, 2, 3), device = "cpu")
buf2 <- copy_buffer(buf, "cuda")
device(buf2)
}