Issues running Hello World openCL example missing libaltera_a10_ref_mmd.so

Hi,

May I know the information as below:

1. OS used
2. Quartus Version and Edition
3. FPGA used

There is an document with information that may help to you:

https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/opencl-sdk/aocl_getting_started.pdf

Thanks

Hi there,

I am using Ubuntu, with Quartus 19.3 Pro, and right now I'm just trying to use the emulator and the a10_ref board.

Hi,

It seems you have issues with PATH enviroment.

Can you ensure that you have set the PATH environment variable correctly. It can be something as below:

export PATH=$PATH:$INTELFPGAOCLSDKROOT/bin:$QUARTUS_DIR/bin

Please tell me as well if the problem still persists.

Thanks

Hi there,

I updated my path, and attempted to recompile for the emulator, but I'm still getting "error while loading shared libraries: libaltera_a10_ref_mmd.so: cannot open shared object file: No such file or directory" when I attempt to run the host executable.

Thanks again for your help!

Just wanted to follow up and see if there is anything else I could try? I have followed the pdf you have linked several times, but the result is always the same. It seems like I'm missing a pre-requisite piece of software, but going through the requirements section I think I have installed everything? The only other thing I can think of is that my library is in a non-standard place, and my LD_LIBRARY_PATH is wrong.

Hi,

I had found some command that may help you as below:

export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:$ALTERAOCLSDKROOT/host/linux64/lib:$AOCL_BOARD_PACKAGE_ROOT/linux64/lib

Please tell me as well if the problem still persist.

Thanks

Hi there,

Thank you for the reply! We are getting closer!

The next issue I have is I'm getting the following output:

$ bin/host -emulator
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 19.3
 
ERROR: CL_DEVICE_NOT_FOUND 
Location: ../common/src/AOCLUtils/opencl.cpp:356
Query for number of devices failed

I have run the following commands to set up the number of devices:

$ export CL_CONFIG_CPU_EMULATE_DEVICES=1 host
$ bin/host -emulator

I found this thread (https://forums.intel.com/s/question/0D50P00003yyS6sSAE/compile-and-run-issues-of-hello-world?language=en_US) talking about needing to set the CL_CONTEXT_EMULATOR_DEVICE_ALTERA variable, however I can't find anything in the install pdf about that variable (other than it's been renamed to CL_CONTEXT_EMULATOR_DEVICE_INTELFPGA for rebranding purposes). Should I set that? if so, what should I set it to?

Thanks again for your time! I really appreciate it!

Apologies, I see that is mentioned in the hello_world example docs. I am now getting the following issue:

$ bin/host -emulator
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 19.3
 
Querying device for info:
========================
CL_DEVICE_NAME                           = EmulatorDevice : Emulated Device
CL_DEVICE_VENDOR                         = Intel(R) Corporation
CL_DEVICE_VENDOR_ID                      = 4466
CL_DEVICE_VERSION                        = OpenCL 1.0 Intel(R) FPGA SDK for OpenCL(TM), Version 19.3
CL_DRIVER_VERSION                        = 19.3
CL_DEVICE_ADDRESS_BITS                   = 64
CL_DEVICE_AVAILABLE                      = true
CL_DEVICE_ENDIAN_LITTLE                  = true
CL_DEVICE_GLOBAL_MEM_CACHE_SIZE          = 32768
CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE      = 0
CL_DEVICE_GLOBAL_MEM_SIZE                = 16719629312
CL_DEVICE_IMAGE_SUPPORT                  = false
CL_DEVICE_LOCAL_MEM_SIZE                 = 16384
CL_DEVICE_MAX_CLOCK_FREQUENCY            = 1000
CL_DEVICE_MAX_COMPUTE_UNITS              = 1
CL_DEVICE_MAX_CONSTANT_ARGS              = 8
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE       = 4179907328
CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS       = 3
CL_DEVICE_MEM_BASE_ADDR_ALIGN            = 8192
CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE       = 1024
CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR    = 4
CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT   = 2
CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT     = 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG    = 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT   = 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE  = 0
Command queue out of order?              = true
Command queue profiling enabled?         = true
Using AOCX: hello_world.aocx
Context callback: Malformed program binary: missing .acl.board section
Context callback: kernel argument info is not available
Context callback: Invalid binary
ERROR: CL_INVALID_BINARY
Location: ../common/src/AOCLUtils/opencl.cpp:392
Failed to create program with binary

Hi,

According to https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/opencl-sdk/aocl_getting_started.pdf for Quartus Prime Pro 19.3, there is an updated as stated: "Changed CL_CONTEXT_EMULATOR_DEVICE_INTELFPGA to CL_CONFIG_CPU_EMULATE_DEVICES."

You can refer to Chapter 2.6.4 as link mentioned above for emulating your OpenCL Kernel.

Thanks

Hi there,

I set CL_CONFIG_CPU_EMULATE_DEVICES, and I still get the following output.

$ bin/host -emulator                        
Querying platform for info:                                               
==========================                                                
CL_PLATFORM_NAME                         = Intel(R) FPGA SDK for OpenCL(T$)
CL_PLATFORM_VENDOR                       = Intel(R) Corporation
CL_PLATFORM_VERSION                      = OpenCL 1.0 Intel(R) FPGA SDK f$r OpenCL(TM), Version 19.3
 
Querying device for info:
========================
CL_DEVICE_NAME                           = EmulatorDevice : Emulated Devi$e
CL_DEVICE_VENDOR                         = Intel(R) Corporation
CL_DEVICE_VENDOR_ID                      = 4466
CL_DEVICE_VERSION                        = OpenCL 1.0 Intel(R) FPGA SDK f$r OpenCL(TM), Version 19.3
CL_DRIVER_VERSION                        = 19.3
CL_DEVICE_ADDRESS_BITS                   = 64
CL_DEVICE_AVAILABLE                      = true
CL_DEVICE_ENDIAN_LITTLE                  = true
CL_DEVICE_GLOBAL_MEM_CACHE_SIZE          = 32768
CL_DEVICE_GLOBAL_MEM_CACHELINE_SIZE      = 0
CL_DEVICE_GLOBAL_MEM_SIZE                = 16719629312
CL_DEVICE_IMAGE_SUPPORT                  = false
CL_DEVICE_LOCAL_MEM_SIZE                 = 16384
CL_DEVICE_MAX_CLOCK_FREQUENCY            = 1000
CL_DEVICE_MAX_COMPUTE_UNITS              = 1
CL_DEVICE_MAX_CONSTANT_ARGS              = 8
CL_DEVICE_MAX_CONSTANT_BUFFER_SIZE       = 4179907328
CL_DEVICE_MAX_WORK_ITEM_DIMENSIONS       = 3
CL_DEVICE_MEM_BASE_ADDR_ALIGN            = 8192
CL_DEVICE_MIN_DATA_TYPE_ALIGN_SIZE       = 1024
CL_DEVICE_PREFERRED_VECTOR_WIDTH_CHAR    = 4
CL_DEVICE_PREFERRED_VECTOR_WIDTH_SHORT   = 2
CL_DEVICE_PREFERRED_VECTOR_WIDTH_INT     = 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_LONG    = 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT   = 1
CL_DEVICE_PREFERRED_VECTOR_WIDTH_DOUBLE  = 0
Command queue out of order?              = true
Command queue profiling enabled?         = true
Using AOCX: hello_world.aocx
Context callback: Malformed program binary: missing .acl.board section
Context callback: kernel argument info is not available
Context callback: Invalid binary
ERROR: CL_INVALID_BINARY
Location: ../common/src/AOCLUtils/opencl.cpp:392
Failed to create program with binary

Just to confirm, here is what I have CL_CONFIG_CPU_EMULATE_DEVICES set to:

$ echo $CL_CONFIG_CPU_EMULATE_DEVICES 
1 bin/host