Kernel Execution Time

[Altera_Forum]

HI everyone 

 I am currently learning Loop Unrolling Implementation, from the report, i currently able to get the Estimated Resource Usage Summary report by using the command aoc -c <kernel_name>.cl --report  But i would like to know how to get the estimated execution time for the kernel?? Thanks

[Altera_Forum]

I am afraid there is no straightforward way of getting an estimation of execution time without fully compiling the kernel and running it on an actual FPGA.

[Altera_Forum]

--- Quote Start ---  I am afraid there is no straightforward way of getting an estimation of execution time without fully compiling the kernel and running it on an actual FPGA.  --- Quote End ---     i see, is there any recommend approaches to examine the code performance(while waiting the arrival of fpga)?? Because, it's hard to know the performance/effect of Loop Unroll with the limited information.  Thanks

[Altera_Forum]

As a general rule of thumb, for loop unrolling you can assume that as long as the Initiation Interval(II) does not change, and you have not saturated the external memory bandwidth, performance will increase near-linearly with the unroll factor.