Forum Discussion
Occasional ContributorIntel Opencl kernel compiling time
Occasional ContributorI am using 18.0 Bsp version. I have lot of register , also I have some register structure such as "float __attribute__((register)) sum[4][2][16] ( ", although I am not able to understand how this 3d register is possible , do you know what that means ? could that also be a reason for long compile time
Frequent ContributorThat buffer is not too large but if you have on-chip buffers that are by default implemented using Block RAMs by the compiler due to their size and you force implementation using registers by adding the "__attribute__((register))" attribute, then indeed that could cause routing congestion problems. Having large register-based buffers with a lot of reads/writes will result in high fan-in/fan-out and routing congestion in the area the buffer is implemented.
