Host code change to pick the devices
This tutorial host code picks two devices by their BDF.
30 auto device1_bdf= "0000:65:00.1"; // Device1 BDF, P2P should be enabled for this device
31 auto device2_bdf= "0000:b3:00.1"; // Device2 BDF, This device doing DMA-READ or DMA-WRITE, P2P enablement is not required
You must change the above lines to pick the right devices as per your setup. You may use xbutil examine which shows bdf of the devices.
Load pre-built XCLBIN for destination device
For the destination device, we are just transferring the data without doing any operation, but we need to load a kernel so that one or more memory banks become visible by runtime.
You can run xbutil validate memory bandwidth test that loads a pre-built kernel so that all memory banks become visible by XRT
xbutil validate --device 0000:b3:00.1 -r mem-bw
Compile and Run
Compile the XCLBIN containing increment kernel for the source device
make xclbin
Compile the host-code
make exe
Execute the host-code
./host.exe
You will see an output like below
Execution of the kernel on source device
Buffer = 16384 Iterations = 1024
Throughput= 0.39GB/s
TEST PASSED