Web内核的编写方式可能需要特定的工作组大小。OpenCL提供了以下方法向编译器请求特定的工作组大小: 使用reqd_work_group_size属性; reqd_work_group_size(X, Y, Z)属性根据 … WebA bare minimum SLM allocation size is 4k per workgroup, so even if your kernel requires less bytes per work-group, the actual allocation still will be 4k. To accommodate many potential execution scenarios try to minimize local memory usage to fit the optimal value of 4K per workgroup. Also notice that the granularity of SLM allocation is 1K.
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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 … WebReturns the number of local work-items specified in dimension identified by dimindx.This value is at most the value given by the local_work_size argument to clEnqueueNDRangeKernel if local_work_size is not NULL; otherwise the OpenCL implementation chooses an appropriate local_work_size value which is returned by this … hill 522 world war 2
OpenCL:工作项目,处理元素,NDRange - IT宝库
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 … Weblocal_work_size. to NULL in . clEnqueueNDRangeKernel()). Memory Optimizations . Assuming that global memory latency is hidden by running enough work-items per multiprocessor, the next optimization to focus on is maximizing the kernel’s overall memory throughput. This is done by maximizing the use of high bandwidth memory (OpenCL local Web26 de jul. de 2011 · CL_INVALID_WORK_GROUP_SIZE if local_work_size is specified and number of work-items specified by global_work_size is not evenly divisable by size of work-group given by local_work_size or does not match the work-group size specified for kernel using the attribute((reqd_work_group_size(X, Y, Z))) qualifier in program source. smart actuators