I'm trying to compile the hello_world openCL example. At first I was having an issue where it couldn't load the openCL platform. I got past that error by coping the $INTELFPGAOCLSDKROOT/Intel_FPGA_SSG_Emulator.icd file to /etc/OpenCL/vendors directory. Now when I go to run the host application, I get the following error:bin/host: error while loading shared libraries: libaltera_a10_ref_mmd.so: cannot open shared object file: No such file or directoryI have updated my path to include $INTELFPGAOCLSDKROOT/bin, and set $LD_LIBRARY_PATH to $INTELFPGAOCLSDKROOT/host/linux64/lib.Thanks for the help!

Hi,May I know the information as below:OS usedQuartus Version and EditionFPGA usedThere 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.pdfThanks

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/binPlease 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.

Issues running Hello World openCL example missing libaltera_a10_ref_mmd.so

29 Replies

MEIYAN_L_Intel

Frequent Contributor

6 years ago

Hi,

Can you try the command as below:

CL_CONFIG_CPU_EMULATE_DEVICES=1 bin/host

If the problem still persist, please tell me as well.

Thanks

JGoer1

New Contributor

6 years ago

Hi Mylee,

Apologies for the delayed response. I realized I was on an incompatible version of ubuntu, and have since install 16.04.

However, after following the getting started pdf, I get a coredump from the hello world example

$ 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 19.3
 
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                = 16722680832
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       = 4180670208
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
terminate called after throwing an instance of 'std::bad_alloc'
  what():  std::bad_alloc
Aborted (core dumped)

Apologies for all the questions!

JGoer1

New Contributor

6 years ago

I just attempted to sanity check something, and recompiled both the aocx and the host binary, and I'm now getting the following output.

$ ./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 19.3
 
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                = 16722680832
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       = 4180670208
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

MVALV2
New Contributor
6 years ago
Hello,
I'm having the exact same issue. Where you able to fix this?
Thanks,
Esteban VAlverde
- JGoer1
  New Contributor
  6 years ago
  The issue I had was I was on the wrong version of ubuntu. the fpga opencl sdk only support 16.04 and 14.04. The installation went smoothly after that, and now I'm getting a core dump in a hello world example.
MEIYAN_L_Intel
Frequent Contributor
6 years ago
Hi,
I would like to confirm the latest problem is regarding to the ERROR: CL_INVALID_BINARY or Aborted (core dumped)?
Thanks
- JGoer1
  New Contributor
  6 years ago
  Hi there,
  Yes, my current issue is the ERROR: CL_INVALID_BINARY error.
  Thanks!
  - JGoer1
    New Contributor
    6 years ago
    And just want to confirm the versions I'm using:
    Ubuntu: 16.04
    Intel FPGA OpenCL SDK: 19.3
MEIYAN_L_Intel
Frequent Contributor
6 years ago
Hi,
Just to confirm with you that do you have setup the Intel Arria 10GX Development KIt as the document https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/an/an807.pdf ?
Thanks
- JGoer1
  New Contributor
  6 years ago
  I'm not looking to run on hardware right now, just get the emulator going. Getting a development kit is in future plans once I can get the SDK (namely the emulator) working. :) I did a aocl install with the provided a10_ref directory, otherwise I have done nothing with boards.
  Thanks
MEIYAN_L_Intel
Frequent Contributor
6 years ago
Hi,
It is the initialization and environment setup problem.
I will need some time to test on the steps as in OpenCL Getting Started Guide.
Thanks
- JGoer1
  New Contributor
  6 years ago
  Thank you so much for all of your time! Please let me know if I can provide any additional information you need. If there is some sort of live chat mechanism that makes this easier to get information from me faster, please let me know, and I'd be more than happy to accommodate a time to be available.
- JGoer1
  New Contributor
  6 years ago
  Hi Mylee,
  Is a licence for System Studio required to get this working? It looks like I didn't receive a licence for it, and going through the install steps notice that the intel "c compiler" won't work without it.
  Thanks
- JGoer1
  New Contributor
  6 years ago
  It appears to work as long as the -legacy-emulator option is specified. I can work with this for now, but if possible, I would like to use the default emulator.
  Thanks again for all your help!
MEIYAN_L_Intel
Frequent Contributor
6 years ago
Hi,
Sorry for late reply.
I am still looking into it and try to duplicate the error.
Thanks

MEIYAN_L_Intel

Frequent Contributor

6 years ago

Hi,

I am sorry for the late reply.

According to https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/hb/opencl-sdk/aocl_getting_started.pdf in Chapter 3.3, you set the environment variables transiently.

Below is the script I had used to compile hello_world example with opencl offline compiler:

export AOCL_BOARD_PACKAGE_ROOT=<opencl install path>/board/a10_ref

cd $INTELFPGAOCLSDKROOT

source init_opencl.sh

cd <hello_world example path >/hello_world

aoc -march=emulator -v device/hello_world.cl -o bin/hello_world.aocx

cd hello_world && make

CL_CONFIG_CPU_EMULATE_DEVICES=1 bin/host -n=10000

Can you try the command?

Thanks

JGoer1

New Contributor

6 years ago

Hi Mylee,

I tried your commands, and I get the following output

$ CL_CONFIG_CPU_EMULATE_DEVICES=1 bin/host -n=100000
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

When I try it with $ CL_CONTEXT_EMULATOR_DEVICE_INTELFPGA=1 bin/host -n=100000 I get the following output:

$ CL_CONTEXT_EMULATOR_DEVICE_INTELFPGA=1 bin/host -n=100000
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                = 16722758656
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       = 4180689664
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

Thanks again for all your help!

MEIYAN_L_Intel
Frequent Contributor
6 years ago
Hi,
Could you provide me the environment variable for further investigate?
Thanks

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Issues running Hello World openCL example missing libaltera_a10_ref_mmd.so

29 Replies

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