0 Replies Latest reply on May 24, 2017 8:32 AM by userxx

    Linux OpenCL not working AMDGPU-PRO (max global size 0, CL_OUT_OF_HOST_MEMORY)

    userxx

      Hello,

       

      I tried to post in the OpenCL forum but I cannot create new discussions.

       

      So I paste here my problem.

       

      I have installed the amdgpu-pro driver just for opencl.

       

      If I execute clinfo I get:

      Number of platforms:                         
      3
        Platform Profile:                          
      FULL_PROFILE
        Platform Version:                          
      OpenCL 2.0 AMD-APP (2348.3)
        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 Profile:                          
      FULL_PROFILE
        Platform Version:                          
      OpenCL 1.1 Mesa 17.1.0
        Platform Name:                             
      Clover
        Platform Vendor:                           
      Mesa
        Platform Extensions:                       
      cl_khr_icd
        Platform Profile:                          
      FULL_PROFILE
        Platform Version:                          
      OpenCL 1.2 LINUX
        Platform Name:                             
      Intel(R) OpenCL
        Platform Vendor:                           
      Intel(R) Corporation
        Platform Extensions:                       
      cl_khr_icd 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_byte_addressable_store cl_khr_depth_images cl_khr_3d_image_writes cl_intel_exec_by_local_thread cl_khr_spir cl_khr_fp64
      
      
      
        Platform Name:                             
      AMD Accelerated Parallel Processing
      Number of devices:                           
      2
        Device Type:                               
      CL_DEVICE_TYPE_GPU
        Vendor ID:                                 
      1002h
        Board name:                                
      AMD Radeon (TM) R7 300 Series
        Device Topology:                           
      PCI[ B#1, D#0, F#0 ]
        Max compute units:                         
      4
        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:                       
      985Mhz
        Address bits:                              
      32
        Max memory allocation:                     
      1319064576
        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:                
      16
        Max size of kernel argument:               
      1024
        Alignment (bits) of base address:          
      2048
        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:                        
      1971261440
        Constant buffer size:                      
      65536
        Max number of constant args:               
      8
        Local memory type:                         
      Scratchpad
        Local memory size:                         
      32768
        Max pipe arguments:                        
      0
        Max pipe active reservations:              
      0
        Max pipe packet size:                      
      0
        Max global variable size:                  
      0
        Max global variable preferred total size:  
      0
        Max read/write image args:                 
      0
        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:                     
      No
      
      Fine grain buffer:                       
      No
      
      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:                               
      0x7f176ac9de98
        Name:                                      
      Hainan
        Vendor:                                    
      Advanced Micro Devices, Inc.
        Device OpenCL C version:                   
      OpenCL C 1.2
        Driver version:                            
      2348.3
        Profile:                                   
      FULL_PROFILE
        Version:                                   
      OpenCL 1.2 AMD-APP (2348.3)
        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_gl_sharing cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_image2d_from_buffer cl_khr_spir cl_khr_gl_event
      
      
      
        Device Type:                               
      CL_DEVICE_TYPE_CPU
        Vendor ID:                                 
      1002h
      
        Board name:
        Max compute units:                         
      8
        Max work items dimensions:                 
      3
      
      Max work items[0]:                       
      1024
      
      Max work items[1]:                       
      1024
      
      Max work items[2]:                       
      1024
        Max work group size:                       
      1024
        Preferred vector width char:               
      16
        Preferred vector width short:              
      8
        Preferred vector width int:                
      4
        Preferred vector width long:               
      2
        Preferred vector width float:              
      8
        Preferred vector width double:             
      4
        Native vector width char:                  
      16
        Native vector width short:                 
      8
        Native vector width int:                   
      4
        Native vector width long:                  
      2
        Native vector width float:                 
      8
        Native vector width double:                
      4
        Max clock frequency:                       
      3200Mhz
        Address bits:                              
      64
        Max memory allocation:                     
      4198982656
        Image support:                             
      Yes
        Max number of images read arguments:       
      128
        Max number of images write arguments:      
      64
        Max image 2D width:                        
      8192
        Max image 2D height:                       
      8192
        Max image 3D width:                        
      2048
        Max image 3D height:                       
      2048
        Max image 3D depth:                        
      2048
        Max samplers within kernel:                
      16
        Max size of kernel argument:               
      4096
        Alignment (bits) of base address:          
      1024
        Minimum alignment (bytes) for any datatype:
      128
      
        Single precision floating point capability
      
      Denorms:                                 
      Yes
      
      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:                        
      16795930624
        Constant buffer size:                      
      65536
        Max number of constant args:               
      8
        Local memory type:                         
      Global
        Local memory size:                         
      32768
        Max pipe arguments:                        
      16
        Max pipe active reservations:              
      16
        Max pipe packet size:                      
      4198982656
        Max global variable size:                  
      1879048192
        Max global variable preferred total size:  
      1879048192
        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:                     
      No
      
      Fine grain buffer:                       
      No
      
      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: 
      1
        Error correction support:                  
      0
        Unified memory for Host and Device:        
      1
        Profiling timer resolution:                
      1
        Device endianess:                          
      Little
        Available:                                 
      Yes
        Compiler available:                        
      Yes
      
        Execution capabilities:
      
      Execute OpenCL kernels:                  
      Yes
      
      Execute native function:                 
      Yes
      
        Queue on Host properties:
      
      Out-of-Order:                            
      No
      
      Profiling :                              
      Yes
      
        Queue on Device properties:
      
      Out-of-Order:                            
      No
      
      Profiling :                              
      No
        Platform ID:                               
      0x7f176ac9de98
        Name:                                      
      AMD FX-8320E Eight-Core Processor
        Vendor:                                    
      AuthenticAMD
        Device OpenCL C version:                   
      OpenCL C 1.2
        Driver version:                            
      2348.3 (sse2,avx,fma4)
        Profile:                                   
      FULL_PROFILE
        Version:                                   
      OpenCL 1.2 AMD-APP (2348.3)
        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_gl_sharing cl_ext_device_fission cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_spir cl_khr_gl_event
      
      
      
      

      If I execute a simple application to run a kernel in the GPU device I get this:

       

      platforms: 3 (0)
      platform name: AMD Accelerated Parallel Processing
      num devices: 2 (0)
      devices: 2 (0)
      context (0)
      device name: Hainan
      device type: CL_DEVICE_TYPE_GPU
      command queue (-6 CL_OUT_OF_HOST_MEMORY)
      
      create buffer a (0)
      create buffer b (0)
      create buffer c (0)
      create program (0)
      build program (0)
      create kernel1 (0)
      gws {1024, 1, 1}
      lws {128, 1, 1}
      set arg 0 (0)
      set arg 1 (0)
      set arg 2 (0)
      set arg 3 (0)
      nd range kernel1 (-36)
      create user event (0)
      c_v 0x6e5030
      about to read the c buffer
      read buffer c_v - buf_c (-36)
      about to check (first: 0)
      Wrong checking: a_v[0] = 0, b_v[0] = 1, c_v[0] = 0
      

       

       

      As you can see it fails when creating the command queue (CL_OUT_OF_HOST_MEMORY). Checking the clinfo I can see weird values related to 'Max global variable size' and similars (always is 0). On the other side, if you check the CPU is has non zero values and it runs correctly, as shown below:

       

      platforms: 3 (0)
      platform name: AMD Accelerated Parallel Processing
      num devices: 2 (0)
      devices: 2 (0)
      context (0)
      device name: AMD FX-8320E Eight-Core Processor
      device type: CL_DEVICE_TYPE_CPU
      command queue (0 CL_SUCCESS)
      mode CPU
      create buffer a (0)
      create buffer b (0)
      create buffer c (0)
      create program (0)
      build program (0)
      create kernel1 (0)
      gws {1024, 1, 1}
      lws {128, 1, 1}
      set arg 0 (0)
      set arg 1 (0)
      set arg 2 (0)
      set arg 3 (0)
      nd range kernel1 (0)
      create user event (0)
      c_v 0x1607030
      about to read the c buffer
      read buffer c_v - buf_c (0)
      about to check (first: 1)
      

       

       

      What is that error and how can I solve it? I need OpenCL for the GPU.