Exemplo n.º 1
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    def copy_to_host(self, mem, size):
        """Copies a memory sequence to the host memory.

        Args:
            mem (ctypes.c_void_p): Target memory pointer.
            size (int): Size of the sequence in bytes.

        """
        if size > 0:
            runtime.memcpy(mem, self.ptr, size, runtime.memcpyDeviceToHost)
Exemplo n.º 2
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    def copy_from_host(self, mem, size):
        """Copies a memory sequence from the host memory.

        Args:
            mem (ctypes.c_void_p): Source memory pointer.
            size (int): Size of the sequence in bytes.

        """
        if size > 0:
            runtime.memcpy(self.ptr, mem, size, runtime.memcpyHostToDevice)
Exemplo n.º 3
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    def copy_from_device(self, src, size):
        """Copies a memory sequence from the same device.

        Args:
            src (cupy.cuda.MemoryPointer): Source memory pointer.
            size (int): Size of the sequence in bytes.

        """
        if size > 0:
            runtime.memcpy(self.ptr, src.ptr, size,
                           runtime.memcpyDeviceToDevice)