3 Replies Latest reply on Feb 23, 2018 3:39 AM by dipak

    Memory-Leak at calling clBuildProgram with Radeon WX9100


      Running the Code below leads to massive main memory consumption by using Radeon WX9100 with driver Version 18.Q1.

      At iteration 1000 my program consumes about 1 GiByte Memory.

      I also tested the code with AMD FirePro W8100 and a GTX760 and there was no memory leak.


      Did I something wrong or can this be a driver bug?




      const char szSource[] = "\
          __kernel void exampleKernel(\n\
              __read_only image2d_t image,\n\
              __global float* buffer,\n\
              uint4 bufferDim,\n\
              float maxValue,\n\
              float minValue)\n\
              size_t valueX = get_global_id(0);\n\
              size_t valueY = get_global_id(1);\n\
              size_t valueZ = get_global_id(2);\n\
              float imageValue = read_imagef(image, Sampler, (float2)(1,1)).x;\n\
              size_t index = (valueZ*bufferDim.y+valueY)*bufferDim.x+valueX;\n\
              float result = buffer[index];\n\
              result = result + imageValue;\n\
              result = clamp(result,minValue,maxValue);\n\
              buffer[index] = result;\n\
          std::size_t i = 0;
              const char* strings = szSource;
              const size_t lengths = strlen(szSource);
              cl_program program = clCreateProgramWithSource(clContext, 1, &strings, &lengths, &error);
              if(error != CL_SUCCESS || program == NULL)  { std::cerr << "failed to compile program:" << error << std::endl; }
              error = clBuildProgram(program, 1, &clDevice, NULL, NULL, NULL);
              if(error != CL_SUCCESS) { std::cerr << "failed to build program: " << error << std::endl;}
              error = clReleaseProgram(program);
              if(error != CL_SUCCESS)  {std::cerr << "failed to release program: " << error << std::endl; }
              std::cout << i++ << std::endl;
        • Re: Memory-Leak at calling clBuildProgram with Radeon WX9100

          Thank you for reporting it. I'll inform the concerned team about the issue. Please share the OS information and clinfo output.



            • Re: Memory-Leak at calling clBuildProgram with Radeon WX9100

              I'm using Windows 7 64-bit




                Platform Name:                 AMD Accelerated Parallel Processing
              Number of devices:                 2
                Device Type:                     CL_DEVICE_TYPE_GPU
                Vendor ID:                     1002h
                Board name:                     Radeon (TM) Pro WX 9100
                Device Topology:                 PCI[ B#8, D#0, F#0 ]
                Max compute units:                 64
                Max work items dimensions:             3
                  Max work items[0]:                 1024
                  Max work items[1]:                 1024
                  Max work items[2]:                 1024
                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:                 1500Mhz
                Address bits:                     64
                Max memory allocation:             14360458035
                Image support:                 Yes
                Max number of images read arguments:         128
                Max number of images write arguments:         64
                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:                 17163091968
                Constant buffer size:                 14360458035
                Max number of constant args:             8
                Local memory type:                 Scratchpad
                Local memory size:                 32768
                Max pipe arguments:                 16
                Max pipe active reservations:             16
                Max pipe packet size:                 1475556147
                Max global variable size:             12924412160
                Max global variable preferred total size:     17163091968
                Max read/write image args:             64
                Max on device events:                 1024
                Queue on device max size:             8388608
                Max on device queues:                 1
                Queue on device preferred size:         262144
                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:                 Yes
                  Profiling :                     Yes
                Platform ID:                     000007FEC1CB4AB0
                Name:                         gfx900
                Vendor:                     Advanced Micro Devices, Inc.
                Device OpenCL C version:             OpenCL C 2.0 
                Driver version:                 2527.8 (PAL,HSAIL)
                Profile:                     FULL_PROFILE
                Version:                     OpenCL 2.0 AMD-APP (2527.8)
                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_khr_gl_depth_images cl_amd_device_attribute_query cl_amd_vec3 cl_amd_printf cl_amd_media_ops cl_amd_media_ops2 cl_amd_popcnt cl_khr_d3d10_sharing cl_khr_d3d11_sharing cl_khr_dx9_media_sharing cl_khr_image2d_from_buffer cl_khr_spir cl_khr_subgroups cl_khr_gl_event cl_khr_depth_images cl_khr_mipmap_image cl_khr_mipmap_image_writes cl_amd_liquid_flash