Single Work Item Kernel Optimization Report Not Generated

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I had trouble trying to find that information as well. However, one thing that might help is to compile with the --profile flag and use the profiler to see more information about your design. The profiler is very limited but does provide some insight into your kernel in terms of memory accesses and bandwidth so you can quickly see if you're memory bounded or if it's something in terms of your computation.

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Sorry, why im not getting any report even when im using "--profile"?and the error im getting is unreadable!(like the figure below)