System Optimization Examples

System Optimization examples focussed towards hardware optimization using HLS C/C++ kernels for Xilinx devices.

Examples Table :

Example	Description	Key Concepts/Keywords
advanced_config	This is simple example to describe how user can provide various advanced options in Vitis flow.	Key Concepts Using custom Tcl Setting Kernel Clock Frequency Clock Uncertainity Keywords config set_clock_uncertainity clock freqHz hls.pre_tcl
kernel_swap	This example shows how host can swap the kernels and share same buffer between two kernels which are exist in separate binary containers. Dynamic platforms does not persist the buffer data so host has to migrate data from device to host memory before swapping the next kernel. After kernel swap, host has to migrate the buffer back to device.	Key Concepts Handling Buffer sharing across multiple binaries Multiple Kernel Binaries Keywords enqueueMigrateMemObjects CL_MIGRATE_MEM_OBJECT_HOST
multiple_devices	This example show how to take advantage of multiple FPGAs on a system. It will show how to initialized an OpenCL context, allocate memory on the two devices and execute a kernel on each FPGA.	Key Concepts OpenCL Host APIs Multi-FPGA Execution Event Handling Keywords xcl::get_xil_devices
multiple_process	This example will demonstrate how to run multiple processes to utilize multiple kernels simultaneously on an FPGA device. Multiple processes can share access to the same device provided each process uses the same xclbin. Processes share access to all device resources but there is no support for exclusive access to resources by any process.	Key Concepts Concurrent execution Multiple HLS kernels Multiple Process Support Keywords PID fork XCL_MULTIPROCESS_MODE multiprocess
plram_config	This example showcases how to configure various PLRAM parameters like Memory Size, Memory Type(BRAM/URAM) etc.	Key Concepts Vitis Memory Hierarchy PLRAMs Keywords PLRAM BRAM URAM
slr_assign	This is simple example to describe SLR assignment information for a platform design. This example highlights how to provide extra input to assign the logic of the kernel into a nominated SLR. In this example we are assigning first kernel(Vector Multiplication) to SLR0 and assigning the second kernel(Vector Addition) to SLR1	Key Concepts SLR Assignments Keywords slr