aoc error for emulation - 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 compilation, i get following error: My Machine spec: Xeon-16 cores,32 GB RAM and Ubuntu 18.04. aoc -march=emulator -fast-emulator -v device/hello_world.cl -o bin/hello_world.aocx Warning: Command has been deprecated. The Fast Emulator is the default emulator; use -legacy-emulator if you wish to target the Legacy Emulator. Error: aoc: The Intel(R) Kernel Builder for OpenCL(TM) compiler (ioc64) can not be found Any idea on how i can fix this. Replies: Re: aoc error for emulation Use this library in ur path.It will work cheers, Prithvi (ISRO) Replies: Re: aoc error for emulation Hi Hamsika, Sorry for delay. Could you please check that you have libsdl2-dev on your machine? If not, you can install it by executing this command: sudo apt-get install libsdl2-dev Replies: Re: aoc error for emulation Hi Sergey, I work in Vinay's team. I was trying out the Sobel Filter Design Example. While compiling the host code I got this error host/src/display.cpp:23:10: fatal error: SDL2/SDL.h: No such file or directory #include <SDL2/SDL.h> ^~~~~~~~~~~~ compilation terminated. ../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); ^ Makefile:74: recipe for target 'bin/host' failed make: *** [bin/host] Error 1 Please help me to solve this. Thanks and regards, Hamsika. Replies: Re: aoc error for emulation Thanks Sergey, it really helped. Replies: Re: aoc error for emulation 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 Replies: Re: aoc error for emulation 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 Replies: Re: aoc error for emulation Hello Vinay, Sorry for delay in answer. In previous version of aoc you should use "-march=emulator and -fast-emulator". In 19.2 version, please, use "-march=emulator -legacy-emulator". I guess, documentation of aoc was not updated to 19.2. Best regards, Sergey Replies: Re: aoc error for emulation Hello Intel Folks, May i request you to please suggest solution for me. I need emulator urgently for my development.