Resource utilization is 0 when added qxp file as source file

Altera_Forum · ‎04-28-2016

Hi Altera Gurus,

I included a .qxp file in my quartus design as source file (not set in Partition Planner) and instantiated it in Top-Level-design. After compilation, I noticed the its (dump_qxp:u_qxp) resource utilization is 0% in Fitter Partition Statistic report. Is this an expected case? Anyone?


+-------------------------------------------------------------------------------------------------------------------------------------------------------------+
; Fitter Partition Statistics                                                                                                                                 ;
+-------------------------------------------------------------+-------------------------+--------------------+-----------------------+------------------------+
; Statistic                                                   ; Top                     ; dump_qxp:u_qxp     ; pzdyqx:nabboc         ; sld_hub:auto_hub       ;
+-------------------------------------------------------------+-------------------------+--------------------+-----------------------+------------------------+
; Logic utilization (ALMs needed / total ALMs on device)      ; 52714 / 427200 ( 12 % ) ; 0 / 427200 ( 0 % ) ; 64 / 427200 ( < 1 % ) ; 81 / 427200 ( < 1 % )  ;
; ALMs needed                                         ; 52714                   ; 0                  ; 64                    ; 81                     ;
;      ALMs used in final placement              ; 52440 / 427200 ( 12 % ) ; 0 / 427200 ( 0 % ) ; 66 / 427200 ( < 1 % ) ; 96 / 427200 ( < 1 % )  ;
;          ALMs used for LUT logic and registers           ; 47092                   ; 0                  ; 28                    ; 39                     ;
;          ALMs used for LUT logic                         ; 3386                    ; 0                  ; 29                    ; 32                     ;
;          ALMs used for registers                         ; 1772                    ; 0                  ; 9                     ; 25                     ;
;          ALMs used for memory (up to half of total ALMs) ; 190                     ; 0                  ; 0                     ; 0                      ;
;      Estimate of ALMs recoverable by dense packing       ; 737 / 427200 ( < 1 % )  ; 0 / 427200 ( 0 % ) ; 2 / 427200 ( < 1 % )  ; 15 / 427200 ( < 1 % )  ;
;      Estimate of ALMs unavailable              ; 1011 / 427200 ( < 1 % ) ; 0 / 427200 ( 0 % ) ; 0 / 427200 ( 0 % )    ; 0 / 427200 ( 0 % )     ;
;          Due to location constrained logic               ; 0                       ; 0                  ; 0                     ; 0                      ;
;          Due to LAB-wide signal conflicts                ; 22                      ; 0                  ; 0                     ; 0                      ;
;          Due to LAB input limits                         ; 41                      ; 0                  ; 0                     ; 0                      ;
;          Due to virtual I/Os                             ; 948                     ; 0                  ; 0                     ; 0                      ;
;                                                             ;                         ;                    ;                       ;                        ;
; Difficulty packing design                                   ; Low                     ; Low                ; Low                   ; Low                    ;
;                                                             ;                         ;                    ;                       ;                        ;
; Total LABs:  partially or completely used                   ; 7693 / 42720 ( 18 % )   ; 0 / 42720 ( 0 % )  ; 12 / 42720 ( < 1 % )  ; 17 / 42720 ( < 1 % )   ;
;     -- Logic LABs                                           ; 7674                    ; 0                  ; 12                    ; 17                     ;
;     -- Memory LABs (up to half of total LABs)               ; 19                      ; 0                  ; 0                     ; 0                      ;
;                                                             ;                         ;                    ;                       ;                        ;
; Combinational ALUT usage for logic                          ; 98578                   ; 0                  ; 91                    ; 114                    ;

Thanks,

OT

Altera_Forum · ‎05-02-2016

I wouldn't expect this. What was the size of the original .qxp though? I've instantiated partitions and they don't get synthesized out as long as one output is hooked up to something real, so maybe that's it?