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TODO.md

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OpenCRun -- Todo list

  • Complete support for the following function qualifiers:

    • attribute((vec_type_hint()))
    • attribute((work_group_size_hint(X, Y, Z)))

  • Complete unit tests for image objects and APIs.

  • Implement a better scheduling policy for enqueued task. For example, task assignment to active worker threads could take advantage of dynamic load balancing algorithms.

  • OpenCRun hardware detection cannot rely on libhwloc in case of single core x86 CPUs since cache memory sizes are not collected within sysfs.

  • OpenCRun hardware detection should handle cluster system and make an opencrun::sys::HardwareSystem class instance the root of the hardware topology built by the hardware parser. So far the root is represented by an opencrun::sys::HardwareMachine instance which, in a cluster environment, would represent a single node.

  • Implement detection of CPUDevice properties at run-time instead of setting them statically (see CPUDevice::InitDeviceInfo). This approach is suggested in particular for:

    • Device geometry (maximum sizes for work-item iteration space)
    • CPU extensions (MMX, SSE, SSE2, ..., AVX)
    • CPU address size (32 or 64 bit)

    The OpenCL extenstions will be set accordingly to the detected CPU features.

  • Implement optimization strategies when creating memory objects marked as read-only/write-only/no-access for the host side.

  • Replace POSIX threads with C++11 threads. LLVM now offers thread-pool support.

  • Implement the following API for complete adherence to the OpenCL 1.2 specs:

    • clCreateContext (handling of the lacking properties)
    • clCreateContextFromType (handling of the lacking properties)
    • clEnqueueMigrateMemObjects
    • clSetMemObjectDestructorCallback
    • clBuildProgram (handling of all build options)
    • clCreateProgramWithBuiltInKernels
    • clCompileProgram
    • clLinkProgram
    • clUnloadCompiler
    • clUnloadPlatformCompiler (replacement for clUnloadCompiler)
    • clGetProgramBuildInfo (handling of all lacking param_name values)
    • clGetKernelInfo (handling of the CL_KERNEL_ATTRIBUTES value for param_name)
    • clGetKernelWorkGroupInfo (handling of the CL_KERNEL_GLOBAL_WORK_SIZE value for param_name)
    • clGetExtensionFunctionAddressForPlatform
    • clGetExtensionFunctionAddress
    • clIcdGetPlatformIDsKHR