OpenCL* Quick Start User Guide: Intel FPGA Programmable Acceleration Card D5005

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ID 683324
Date 7/21/2020
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2.3. Initializing the Intel® Acceleration Stack for OpenCL* in a Virtualized Environment

Follow the installation instructions from the Quick Start Guide to set up the Intel® FPGA PAC D5005.

Once the stack setup is complete, follow the steps below to setup OpenCL on Intel® FPGA PAC D5005.

You can run the OPAE software in a non-virtualized environment with the Single Root I/O Virtualization (SR-IOV) disabled or in a virtualized environment with the SR-IOV enabled.

To run the OpenCL* reference design in a virtualized environment that includes SR-IOV, follow steps 1 to 3 from section Initializing the Environment for OpenCL with Intel Acceleration Stack and then complete the following additional steps:
  1. Program the required OpenCL* configuration from the host machine by typing the following command:
    aocl program <device name> <filename>

    Sample Output:
    $ aocl program acl0 signed_vector_add.aocx 
    aocl program: Running program from /home/DCPsupport/intelrtestack/a10_gx_pac_ias_1_2_1_pv/opencl/opencl_bsp/linux64/libexec
    Program succeed. 
    
    You can see the device name in the output for aocl diagnose and you can use one of the pre-compiled bitstream for programming. For example,
    aocl program acl0 $OPAE_PLATFORM_ROOT/opencl/hello_world.aocx
    Note: The 2.0.1 Release does not support partial reconfiguration in virtualized environment.
  2. Enable virtualization using the instructions from section Updating Settings Required for VFs and section Configuring the VF Port on the Host of the Quick Start Guide.
  3. Set the CL_CONTEXT_COMPILER_MODE_INTELFPGA environment variable in the virtual machine to disable FPGA configuration or reconfiguration during OpenCL* host runtime:
    $ export CL_CONTEXT_COMPILER_MODE_INTELFPGA=3
  4. Run the required application from the virtual machine.
  5. Disable virtualization using the instruction from section Disconnecting the VF from the VM and Reconnecting to the PF of the Quick Start Guide.

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