2 Replies Latest reply on Nov 30, 2017 1:48 AM by dipak

    OpenCL on Vega 56 - Few Issues Remaining

    tbernath

      I installed a new CentOS 6.9 and updated the PCI-IDs so that the card is recognized.  I downloaded the latest AMDAPPSDK 3.0, and was able to build and run most of the examples.

       

      However, the OpenCL 2.0 are failing, saying that the card does not support OpenCL 2.0.  I'm attaching the clinfo that shows it SAYS it is OpenCL 2.0 Profile, and OpenCL 1.2 Device.

       

      Also, in the 2.0 examples, there are three programs that refuse to load because of the '#include "atomic"', which I suspect is related to the gcc being pre-5.0.

      [root@localhost 2.0]# gcc --version

      gcc (GCC) 4.4.7 20120313 (Red Hat 4.4.7-18)

       

      I downloaded the latest CodeXL, and it doesnt recognize the card. Trying to run Profile on GPU for the example, says to reference the Project Settings, where it says

      'GPU Performance Counters are available only for AMD devices with a Catalyst driver installed.'

       

      clinfo output:

      [root@localhost 2.0]# clinfo

      Number of platforms:                 1

        Platform Profile:                 FULL_PROFILE

        Platform Version:                 OpenCL 2.0 AMD-APP (2482.3)

        Platform Name:                 AMD Accelerated Parallel Processing

        Platform Vendor:                 Advanced Micro Devices, Inc.

        Platform Extensions:                 cl_khr_icd cl_amd_event_callback cl_amd_offline_devices

       

       

        Platform Name:                 AMD Accelerated Parallel Processing

      Number of devices:                 1

        Device Type:                     CL_DEVICE_TYPE_GPU

        Vendor ID:                     1002h

        Board name:                     Vega 10 XT [Radeon RX Vega 64]

        Device Topology:                 PCI[ B#3, D#0, F#0 ]

        Max compute units:                 56

        Max work items dimensions:             3

          Max work items[0]:                 256

          Max work items[1]:                 256

          Max work items[2]:                 256

        Max work group size:                 256

        Preferred vector width char:             4

        Preferred vector width short:             2

        Preferred vector width int:             1

        Preferred vector width long:             1

        Preferred vector width float:             1

        Preferred vector width double:         1

        Native vector width char:             4

        Native vector width short:             2

        Native vector width int:             1

        Native vector width long:             1

        Native vector width float:             1

        Native vector width double:             1

        Max clock frequency:                 1590Mhz

        Address bits:                     64

        Max memory allocation:             7287183769

        Image support:                 Yes

        Max number of images read arguments:         128

        Max number of images write arguments:         8

        Max image 2D width:                 16384

        Max image 2D height:                 16384

        Max image 3D width:                 2048

        Max image 3D height:                 2048

        Max image 3D depth:                 2048

        Max samplers within kernel:             26751

        Max size of kernel argument:             1024

        Alignment (bits) of base address:         1024

        Minimum alignment (bytes) for any datatype:     128

        Single precision floating point capability

          Denorms:                     No

          Quiet NaNs:                     Yes

          Round to nearest even:             Yes

          Round to zero:                 Yes

          Round to +ve and infinity:             Yes

          IEEE754-2008 fused multiply-add:         Yes

        Cache type:                     Read/Write

        Cache line size:                 64

        Cache size:                     16384

        Global memory size:                 8573157376

        Constant buffer size:                 7287183769

        Max number of constant args:             8

        Local memory type:                 Scratchpad

        Local memory size:                 65536

        Max pipe arguments:                 0

        Max pipe active reservations:             0

        Max pipe packet size:                 0

        Max global variable size:             7287183769

        Max global variable preferred total size:     8573157376

        Max read/write image args:             64

        Max on device events:                 0

        Queue on device max size:             0

        Max on device queues:                 0

        Queue on device preferred size:         0

        SVM capabilities:                

          Coarse grain buffer:             Yes

          Fine grain buffer:                 Yes

          Fine grain system:                 No

          Atomics:                     No

        Preferred platform atomic alignment:         0

        Preferred global atomic alignment:         0

        Preferred local atomic alignment:         0

        Kernel Preferred work group size multiple:     64

        Error correction support:             0

        Unified memory for Host and Device:         0

        Profiling timer resolution:             1

        Device endianess:                 Little

        Available:                     Yes

        Compiler available:                 Yes

        Execution capabilities:                

          Execute OpenCL kernels:             Yes

          Execute native function:             No

        Queue on Host properties:                

          Out-of-Order:                 No

          Profiling :                     Yes

        Queue on Device properties:                

          Out-of-Order:                 No

          Profiling :                     No

        Platform ID:                     0x7f555c8ad3f8

        Name:                         gfx900

        Vendor:                     Advanced Micro Devices, Inc.

        Device OpenCL C version:             OpenCL C 1.2

        Driver version:                 1.1 (HSA,HSAIL)

        Profile:                     FULL_PROFILE

        Version:                     OpenCL 1.2

        Extensions:                     cl_khr_fp64 cl_amd_fp64 cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_int64_base_atomics cl_khr_int64_extended_atomics cl_khr_3d_image_writes cl_khr_byte_addressable_store cl_khr_fp16 cl_khr_gl_sharing cl_amd_media_ops cl_amd_media_ops2 cl_khr_subgroups cl_khr_depth_images cl_amd_liquid_flash cl_amd_copy_buffer_p2p

       

       

       

      So, trying to get a working OpenCL environment, and happy to purge and reformat if there is another release or packages that need to be installed.  Open to all suggestions .

      Thanks,
      TMB