weelo
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I am trying out Spectre 6.1, and I have noticed that it starts up very slowly compared to Spectre 5.10.41_USR4, which I was previously using. I set up a small test in which I run both versions of Spectre from the command line on the same input deck.
Setup: 3.8GHz P4, 4G RAM, 15k scsi drive, all tools loaded locally from this drive, all results written locally to this drive
============================== mx1:~/projects/bawang/bawang_a0> /appmt/cadence_5141_usr4/tools/spectre/bin/32bit/spectre -version @(#)$CDS: spectre version 5.1.0 08/11/2006 05:13 (intelibm18.Cadence.COM) $
mx1:~/projects/bawang/bawang_a0> /appmt/cadence_5141_usr4/tools/spectre/bin/32bit/spectre -raw ./tmp c.scs
Aggregate audit (5:58:11 PM, Wed Mar 14, 2007): Time used: CPU = 13.8 s, elapsed = 14 s, util. = 98.9%. Virtual memory used = 4.25 Mbytes. spectre completes with 0 errors, 103 warnings, and 6 notices. ==============================
============================== mx1:~/projects/bawang/bawang_a0> setenv LD_LIBRARY_PATH /appmt/mmsim61/tools/lib
mx1:~/projects/bawang/bawang_a0> /appmt/mmsim61/tools/spectre/bin/32bit/spectre -version @(#)$CDS: spectre version 6.1.0 05/26/2006 17:57 (usimlx109) $
mx1:~/projects/bawang/bawang_a0> /appmt/mmsim61/tools/bin/spectre -raw ./tmp c.scs
Aggregate audit (5:51:28 PM, Wed Mar 14, 2007): Time used: CPU = 14.4 s, elapsed = 25 s, util. = 57.4%. Time spent in licensing: elapsed = 350 ms. Virtual memory used = 6.24 Mbytes. spectre completes with 0 errors, 161 warnings, and 6 notices. ==============================
You can see that the CPU time is about the same in both cases, 14 sec, but the elapsed time is much longer with spectre 6.1.0. I also notice that with spectre 5.1.0, the simulation starts as soon as I hit RETURN. However, with Spectre 6.1.0, it takes several seconds before anything starts to happen.
I was wondering if anyone else has noticed this slowness when migrating to Spectre 6.1.
Thanks.
Adrian
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