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Kulkarni__Vinay's avatar
Kulkarni__Vinay
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6 years ago
Solved

aoc error for emulation

Hi, I installed opencl intel fpga sdk 19.2 and after installation the hello world example seems to compile smoothly taking default board as Arria10GX. But when i try giving the emulator compilati...
  • Sergey_I_Intel1's avatar
    Sergey_I_Intel1
    6 years ago

    Vinay,

    Please, check that you set the environment variable CL_CONTEXT_EMULATOR_DEVICE_INTELFPGA=<number_of_devices>.

    For more information about emulating OpenCL Kernels read here.

    Best regards,

    Sergey

Kulkarni__Vinay's avatar
Kulkarni__Vinay
Icon for New Contributor rankNew Contributor
6 years ago

Thanks Sergey for your help.

Now i am able to compile, but running gives error as below:

ERROR: CL_DEVICE_NOT_FOUND
Location: ../common/src/AOCLUtils/opencl.cpp:356
Query for number of devices failed

Please let me know how i can get this working.

My Runs are as below :

(base) wc@ign:~/Documents/opencl_fpga/exm_opencl_hello_world_x64_linux/hello_world$ aoc -march=emulator -legacy-emulator -board=a10gx device/hello_world.cl -o bin/hello_world.aocx
aoc: Running OpenCL parser....
aoc: OpenCL parser completed successfully.
aoc: Linking Object files....
aoc: Compiling for Emulation ....

------------------------------Make of hello world --------------------------------------------------------------------------------------

(base) wc@ign:~/Documents/opencl_fpga/exm_opencl_hello_world_x64_linux/hello_world$ make
../common/src/AOCLUtils/opencl.cpp: In function ‘_cl_program* aocl_utils::createProgramFromBinary(cl_context, const char*, _cl_device_id* const*, unsigned int)’:
../common/src/AOCLUtils/opencl.cpp:388:22: warning: ignoring attributes on template argument ‘cl_int {aka int}’ [-Wignored-attributes]
scoped_array<cl_int> binary_status(num_devices);
^

------------------------------Running hello world ---------------------------------------------------------------------

(base) wc@ign:~/Documents/opencl_fpga/exm_opencl_hello_world_x64_linux/hello_world$ bin/host
Querying platform for info:
==========================
CL_PLATFORM_NAME = Intel(R) FPGA SDK for OpenCL(TM)
CL_PLATFORM_VENDOR = Intel(R) Corporation
CL_PLATFORM_VERSION = OpenCL 1.0 Intel(R) FPGA SDK for OpenCL(TM), Version 19.2

ERROR: CL_DEVICE_NOT_FOUND
Location: ../common/src/AOCLUtils/opencl.cpp:356
Query for number of devices failed