Using A10 PAC BSP with OpenCL SDK 18.1

Hi, @FJumaah​

Thank you for your support. I've made the changes you suggested on my environment variables. The building process is working properly for small kernels, but for larger one I keep getting the error message bellow at the end of the compilation. I wanted to be sure if its a kernel or environment problem.

Thank you again for your help.

"Compiler Warning: addpipe in board_spec.xml is set to 1 which is no longer supported

Compiler Warning: global memory pipeline stage is now implemented in BSP instead

aoc: First stage compilation completed successfully.

Compiling for FPGA. This process may take a long time, please be patient.

Error: An error occurred during placement

Error: Quartus Prime Fitter was unsuccessful. 1 error, 594 warnings

Error (293001): Quartus Prime Fitter was unsuccessful. 3 errors, 594 warnings

Error (23031): Evaluation of Tcl script a10_partial_reconfig/flow.tcl unsuccessful

Error: Quartus Prime Shell was unsuccessful. 8 errors, 2776 warnings

Error: Compiler Error, not able to generate hardware"

Hello,

I am still investigating the source of this error.

I will reply to you shortly.

Thanks

Hi,

I managed to build and run my problematic kernels using SDK 18.1 this weekend. The problem was that I had to build kernels on a remote compilation server, with OpenCL 18.1, while my workstation, where PAC is, had SDK 17.1 installed. The problem disappeared when I updated the SDK on my workstation to the version 18.1. Silly me! Now everything runs fine.

One observation, however: the same kernel won't build on any SDK lower than 18.0. I wonder what was the difference.

Thank you so much for your attention.

Hello,

I got a confirmation regarding this. You can compile OpenCL kernel using latest intel SDK with older BSP version.

You need to set the environment to make everything works:

• Set environment variables to point the Quartus Prime version that was used to compile the BSP.
• Set the environment variables to point to the BSP directory.
• Set environment variables to point to the latest version of the Intel SDK for OpenCL.
• Run the Intel SDK for OpenCL initialization script.
• Compile the kernel.
• Run the design using the latest version of the Intel SDK for OpenCL or Intel RTE for OpenCL.

For example:

export QSYS_ROOTDIR=/IntelFPGA_pro/17.1/qsys/bin

export QUARTUS_ROOTDIR=/IntelFPGA_pro/17.1/quartus/bin

export QUARTUS_ROOTDIR_OVERRIDE=/IntelFPGA_pro/17.1/quartus/bin

export PATH="/IntelFPGA_pro/17.1/quartus/bin/:$PATH"

export PATH="/IntelFPGA_pro/17.1/qsys/bin:$PATH"

# A10 ref BSP version 17.1

export AOCL_BOARD_PACKAGE_ROOT=/IntelFPGA_pro/17.1/hld/board/a10_ref

export PATH="/IntelFPGA_pro/17.1/hld/board/a10_ref/ip/:$PATH"

# set OpenCL version 18.1

export ALTERAOCLSDKROOT=/IntelFPGA_pro/18.1/hld

export INTELFPGAOCLSDKROOT=/IntelFPGA_pro/18.1/hld

#run the OpenCL Setup script in 18.1

source /IntelFPGA_pro/18.1/hld/init_opencl.sh

Hope this might help

The process is failing during fitting, likely because your kernel is too large to fit on the device. I can give you a more concrete answer if you attach the complete "quartus_sh_compile.log" file from the compilation folder.