OpenCL kernel takes more than 36 hours to compile on Arria 10

Thanks for your reply!

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... cancelling and retrying the compilation.

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That is what I did, but now, after 24 hours, it got stuck again on the same line in the quartus_sh_compile.log... On another machine I started another compilation, but unrolling a certain loop N times instead of fully. That compiled and synthesized within 4 hours... So apparently it is a resource issue? Which is weird, because the Optimization Report shows the following resource utilization:

+--------------------------------------------------------------------+

; Estimated Resource Usage Summary ;

+----------------------------------------+---------------------------+

; Resource + Usage ;

+----------------------------------------+---------------------------+

; Logic utilization ; 55% ;

; ALUTs ; 24% ;

; Dedicated logic registers ; 32% ;

; Memory blocks ; 82% ;

; DSP blocks ; 25% ;

+----------------------------------------+---------------------------;

I read somewhere that the estimated resource usage could be off significantly, so maybe in reality it is allocating more than available. But I would expect an error message in that case :)