why cannot I pass the "Cell Placement" in SE? The site utili

[walala]

I set the row utilization in "initialization floorplan" to be 70%,

Can anybody tell me why I get error message in after "Cell Placement"
to be "too high row utilization -- 140%"?

thanks a lot,

-Walalla

--------------------------------------------------------------------------
15:58:56 * PLACE : The site utilization is = 140.2 is too high!
** SE-USER-61 ERROR **
15:58:56 * PLACE : * Impossible to place without overlaps!

--------------------------------------------------------------------------


15:58:47 * PLACE :
15:58:47 * PLACE : Begin LEF/DEF in ...
15:58:47 * PLACE : Reading "dbs/fir_srg.opt.lef" ...
15:58:51 * PLACE : Reading "dbs/fir_srg.opt.def" ...
** SE-USER-60 WARNING **
15:58:53 * PLACE : design has no clock net
15:58:53 * PLACE : A total of 1 warning.
15:58:53 * PLACE : Read in 11 layers, 4 routing layers, 0 overlap
layer
15:58:53 * PLACE : Read in 132 macros, 18 used
15:58:53 * PLACE : Read in 414 components
15:58:53 * PLACE : 414 core components: 414 unplaced, 0 placed, 0
fixed
15:58:53 * PLACE : Read in 17 physical pins
15:58:53 * PLACE : 17 physical pins: 0 unplaced, 17 placed, 0 fixed
15:58:53 * PLACE : Read in 2 logical pins
15:58:53 * PLACE : Read in 429 nets
15:58:53 * PLACE : Read in 3 special nets
15:58:53 * PLACE : Read in 2056 terminals
15:58:53 * PLACE : End LEF/DEF in: cpu: 0:00:04, real: 0:00:07, peak:
16.70 megs.
15:58:53 * PLACE :
15:58:53 * PLACE : Begin buildData ...
15:58:53 * PLACE : SiliconEnsemble(TM) placement mode
15:58:53 * PLACE : design name = fir_srg
15:58:53 * PLACE : number of instance = 414
15:58:53 * PLACE : number of placeable core instance = 414
15:58:53 * PLACE : number of fixed core instance = 0
15:58:53 * PLACE : number of placeable block instance = 0
15:58:53 * PLACE : number of fixed block instance = 0
15:58:53 * PLACE : number of placeable IO instance = 0
15:58:53 * PLACE : number of fixed IO instance = 0
15:58:53 * PLACE : number of pin = 17
15:58:53 * PLACE : number of placeable spare cell = 0
15:58:53 * PLACE : number of special net = 3
15:58:54 * PLACE : number of net = 429
15:58:54 * PLACE : number of site = 1
15:58:54 * PLACE : number of core site = 1
15:58:54 * PLACE : number of pad site = 0
15:58:54 * PLACE : core box = ((-151.50 -126.00)(153.00 130.00))
15:58:54 * PLACE : row orientation = horizontal, row height = 1
15:58:54 * PLACE : number of core site per core row = 203
15:58:54 * PLACE : number of core row = 19
15:58:54 * PLACE :
15:58:54 * PLACE : number of routing layer = 4
15:58:54 * PLACE : layer 1 = Metal1 (metal1), average pitch = 1.5, dir
= horizontal
15:58:54 * PLACE : tracks in core = 171, freeTrackPct.1 = 10%
15:58:54 * PLACE : average blockage for core inst = 100%
15:58:55 * PLACE : LLC.Ignore.Layer.1 = true
15:58:55 * PLACE : layer 2 = Metal2 (metal2), average pitch = 1.5, dir
= vertical
15:58:55 * PLACE : tracks in core = 203, freeTrackPct.2 = 70%
15:58:55 * PLACE : average blockage for core inst = 10%
15:58:55 * PLACE : LLC.Ignore.Layer.2 = true
15:58:55 * PLACE : layer 3 = Metal3 (metal3), average pitch = 1.5, dir
= horizontal
15:58:55 * PLACE : tracks in core = 171, freeTrackPct.3 = 100%
15:58:55 * PLACE : average blockage for core inst = 0%
15:58:55 * PLACE : LLC.Ignore.Layer.3 = true
15:58:55 * PLACE : layer 4 = Metal4 (metal4), average pitch = 3.0, dir
= vertical
15:58:55 * PLACE : tracks in core = 102, freeTrackPct.4 = 60%
15:58:55 * PLACE : average blockage for core inst = 0%
15:58:55 * PLACE : LLC.Ignore.Layer.4 = true
15:58:55 * PLACE :
15:58:55 * PLACE : total site size = 3857 (100.00%)
15:58:55 * PLACE : total core inst size = 5406 (140.16%)
qty=414
15:58:55 * PLACE : average row utilization = 140.16%
15:58:55 * PLACE :
15:58:55 * PLACE : num inst of height 2 = 414 5406 sites
(100.0% of inst sites)
15:58:56 * PLACE : min-max inst length = 3-22
15:58:56 * PLACE : average inst length = 6.53, standard deviation =
5.53
15:58:56 * PLACE :
15:58:56 * PLACE : The site utilization is = 140.2 is too high!
** SE-USER-61 ERROR **
15:58:56 * PLACE : * Impossible to place without overlaps!
15:58:56 * PLACE : PLACE FAILS
Place interface : Elapsed date = 0
Place interface : Elapsed time = 0:00:20
Place interface : CPU time used = 0:00:05