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Honored Contributor I
1,876 Views

FPGA resources usage

Hi, after I compile my opencl code, the resources usage as flows: 

 

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

; Estimated Resource Usage Summary ; 

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

; Resource + Usage ; 

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

; Logic utilization ; 139% ; 

; ALUTs ; 59% ; 

; Dedicated logic registers ; 81% ; 

; Memory blocks ; 210% ; 

; DSP blocks ; 73% ; 

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

 

The FPGA is Arria 10. I want to know what's the relationship between 'Logic utilization' and 'ALUTs'. Why 'ALUTs' is 59% but 'Logic utilization' is 139%?
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Honored Contributor I
87 Views

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Highlighted
Honored Contributor I
87 Views

 

--- Quote Start ---  

Here is Altera's interpretation: 

https://www.altera.com/support/support-resources/knowledge-base/solutions/rd05172012_146.html 

--- Quote End ---  

 

 

Hi, thanks fot your reply! Should I use either "Logic utilization" or "ALUTs" to estimate resources usage? Thank you!
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Honored Contributor I
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Logic utilisation is the more important. as you can see, as logic usage is > 100%, it will not fit in the device. (you also have 210% ram usage, so no chance)

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Honored Contributor I
87 Views

 

--- Quote Start ---  

Logic utilisation is the more important. as you can see, as logic usage is > 100%, it will not fit in the device. (you also have 210% ram usage, so no chance) 

--- Quote End ---  

 

 

Thanks for your reply!
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