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Scripts to generate the bistream database AFOCL. Meant to be used with PoCL's AlmaIF driver.

Tested with Vivado tool versions 2022.1 and Alveo U280

To build the database for both Alveo U280.

First you should initialize the FPGA tools so that they are found from the path:

source {XILINX INSTALL DIR}/Vivado/2022.1/settings.sh

If OpenASIP is not installed in ${HOME}/local, you need to set it with variable OPENASIP_INSTALL_DIR. This is needed to override the LD_LIBRARY_PATH and PATH set by sourcing the toolset script. This is done when calling OpenASIP's oacc to compile the firmware.

Then you can run:

make

The make command generates the 'db' folder, which contains the bitstreams. PoCL's AlmaIF driver needs to be pointed to this folder with the environment variable.

export POCL_DEVICES=almaif
export POCL_ALMAIF0_PARAMETERS=0xF,<path/db>

The magic number 0xF enables the DBDevice backend of the AlmaIF driver.

Now you can execute the example application from {PoCL}/examples/accel/accel_example. Since there are two different built-in kernel implementations in the database, you can choose the built-in kernel you want like this:

{PoCL}/examples/accel/accel_example pocl.add.i32
{PoCL}/examples/accel/accel_example pocl.add.i16

The PoCL will reconfigure the FPGA in between these different kernels.