Copy Buffer¶
This Copy Buffer example demonstrate how one buffer can be copied from another buffer.
KEY CONCEPTS: Copy Buffer
KEYWORDS: cl::CommandQueue, enqueueCopyBuffer, enqueueWriteBuffer, enqueueReadBuffer, enqueueMigrateMemObjects
This example illustrates the use of clEnqueueCopyBuffer
API which is
used to copy the contents of a buffer into another buffer in the global
memory without copying the contents to host and back.
Contents of buffer_a
are copied into buffer_b
.
err = q.enqueueCopyBuffer(buffer_a, buffer_b, 0, 0, size_in_bytes);
Note: Only CDMA enabled platforms will copy the buffer directly using
clEnqueueCopyBuffer
API. Please check platform Info to make sure if
platform is CDMA enabled or not.
EXCLUDED PLATFORMS¶
Platforms containing following strings in their names are not supported for this example :
xilinx_u200_xdma_201830
xilinx_u250_xdma_201830
DESIGN FILES¶
Application code is located in the src directory. Accelerator binary files will be compiled to the xclbin directory. The xclbin directory is required by the Makefile and its contents will be filled during compilation. A listing of all the files in this example is shown below
src/host.cpp
src/vector_addition.cpp
COMMAND LINE ARGUMENTS¶
Once the environment has been configured, the application can be executed by
./host <vector_addition XCLBIN>