OpenCL FPGA：内核 未并行执行同一内核的 2 个副本。除此之外，他们之间还有空闲时间
我的目标是将2-4K数据点的FFT一起完成。因此，我从相同的内核制作了2个内核对象，并立即重现任务，即没有任何缓冲区读写或之间的任何回调。我发现那不会那样发生。除此之外，执行之间还有一些空闲时间。有人可以解释吗？
我希望他们两个都在并行运行，因为我的FPGA似乎有更多的区域。使用了其中约38％。
My goal is to complete FFTs of 2 - 4K Data points together. Hence, I made 2 kernel objects from the same kernel and Enqueued the tasks at once, i.e. without any Buffer Read-Write or any callbacks in between. I find out that it doesn't happen that way. In addition to that, there is also some idle time between the executions. Can someone please explain?
I was expecting both of them to run in parallel because my FPGA seems to have more area. About 38 percent of it is used.
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OpenCL 队列按顺序工作，因此一个内核会在另一个内核之后执行。这可以确保 - 如果内核 2 读取内核 1 已更新的内存，则不会出现竞争条件，就像它们同时运行一样。开始执行内核也可能存在一些延迟。
要并行运行多个内核，可以尝试多个队列。
The OpenCL queue works sequentially, so one kernel is executed after the other. This makes sure that - if kernel 2 reads memory that kernel 1 has updated, there is no race condition like if they would run concurrently. There may also be some latency to start execution of a kernel.
To run multiple kernels in parallel, you can try multiple queues.
我发现这个问题解决了我的疑问。它可以找到在这里
I found this question that kind off answers my doubts. It can be foundhere