Web7 de nov. de 2024 · OpenCL-2.1文档相关描述CL_KERNEL_GLOBAL_WORK_SIZE这段文字表明使用 cl_kernel_work_group_info 函数并将查询项目设置为 … Web24 de nov. de 2024 · 所有教程都说,使用向量类型可以加快计算速度。. 在主机端,为float4参数分配的内存对齐16个字节,而clEnqueueNDRangeKernel的global_work_size缩小4倍。. 内核在AMD HD5770 GPU AMD-APP-SDK-v2.6上运行。. CL_DEVICE_PREFERRED_VECTOR_WIDTH_FLOAT的设备信息返回4。. 使 …
OpenCL - local_work_size influence nothing - Stack Overflow
Web21 de abr. de 2024 · Subgroups. This section describes the cl_khr_subgroups extension. This extension adds support for implementation-controlled groups of work items, known as subgroups. Subgroups behave similarly to work groups and have their own sets of built-ins and synchronization primitives. Subgroups within a work group are independent, may … Web16 de nov. de 2013 · 在OpenCL设备中一个workgroup中的所有work-item可以共用本地内存(local memory),在OpenCL kernal编程中,合理的利用local memory,可以提升系统的整体 … shark tank season 3 luggage cover
OpenCL™ Developer Guide for Intel® Processor Graphics
Web13 de abr. de 2010 · local describes the number of work-items that make up a work-group (also referred to as the size of the work-group) that will execute the kernel specified by kernel. If local is NullRange and no work-group size is specified when the kernel is compiled, the OpenCL implementation will determine how to break the global work … WebEnable a single work-item to write to an independent area of local memory space, and do not enable overlapping write operations. If, for example, each work-item is writing to a row of pixels, the local memory size equals the number of local memory items times the size of a row, and each work-item indexes into its respective local memory buffer. Web26 de abr. de 2024 · I agree the current behavior is a little non-intuitive, but I do believe it was intended. For a pure OpenCL 2.0 compile, the reqd_work_group_size kernel attribute guarantees that get_enqueued_local_size will return the value specified by the attribute, but because work group sizes may be non-uniform the only guarantee for get_local_size is … shark tank season 2 updates