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hspice cpu比快大賽 , 一般測 cpu都用 super pie ..沒看過用 spice 做 benchmark
先前有拿到朋友一個 cpu test 資料
可能來評沽 server cpu 要買那類會較快
拿 hspice 來比 , 想知道不同 cpu os 下要跑多久
hspice sim 時間看 hspice list file
格式 hspice_version / OS/ cpu +clock / RAM / sim_time
ex
hspice 2009.03 / centOS5 / Q6600 2.4G / 4G / 993s
hspice 2009.03 / win2000 / Q6600 2.4G / 2G / 1400s
hspice 2009.03 / centos 4.5 x64 / I7 920 4G / 4G / 238.31s
hspice 2009.03 / redhat 8 / Pentium4 3GHz / 2G / 1131s
hspice 2009.03 / RHEL4 x64 / opteron252 2.6G / 8G / 727s
hspice 2009.03 / RHEL4 / xeon ex4400 2.4G / ? / 508.2sec
另外如果有 hsim , eldo , tspice , adit smartspice ,也一起來 test 看看
就拿 hspice 本身的 example 來 , see
pll.rar
(1.12 KB, 下载次数: 30 )
attach file is pll.sp
下面就是 pll.sp
==
.option post probe
$
$ wideband FM example, Grebene gives:
$ f0=1meg kf=250kHz/V
$ kd=0.1 V/rad
$ R=10K C=1000p
$ f_lock = kf*kd*pi/2 = 39kHz, v_lock = kd*pi/2 = 0.157
$ f_capture/f_lock ~= 1/sqrt(2*pi*R*C*f_lock)
$ = 0.63, v_capture ~= 0.100
.tran 0.01u 25000u
.option runlvl=5
.option delmax=0.01u
.probe v_in=v(inc,0) v_out=v(out,outb)
.probe v(in) v(osc) v(mout) v(out) v(e)
vcc vcc 0 6
vee vee 0 -6
$ input
vin inc 0 pwl 0u,-0.2 500u,0.2
xin inc 0 in inb vco f0=1meg kf=125k phi=0 out_off=0 out_amp=0.3
$ vco
xvco1 e eb osc oscb 0 vee vco1
.ic v(osc)=-1.4 v(oscb)=-0.7
$ phase detector
xpd1 in inb osc oscb mout moutb vcc vee pd1
$ filter
rf mout e 10k
cf e 0 1000p
rfb moutb eb 10k
cfb eb 0 1000p
$ final output
rout out e 100k
cout out 0 100p
routb outb eb 100k
coutb outb 0 100p
.subckt vco in inb out outb f0=100k kf=50k phi=0.0 out_off=0.0 out_amp=1.0
gs 0 s poly(2) c 0 in inb 0 '6.2832e-9*f0' 0 0 '6.2832e-9*kf'
gc c 0 poly(2) s 0 in inb 0 '6.2832e-9*f0' 0 0 '6.2832e-9*kf'
cs s 0 1e-9
cc c 0 1e-9
e1 s_clip 0 pwl(1) s 0 -0.1,-0.1 0.1,0.1
e out 0 s_clip 0 out_off '10*out_amp'
eb outb 0 s_clip 0 out_off '-10*out_amp'
.ic v(s)='sin(phi)' v(c)='cos(phi)'
.ends
.subckt vco1 in inb e7 e8 vcc vee vco_cap=228.5p
qout vcc vcc b7 npn1
qoutb vcc vcc b8 npn1
rb vcc c0 5k $ 1ma
q0 c0 b0 vee npn1
q7 vcc b7 e7 npn1
r4 vcc b7 1k
i7 e7 0 1m
q8 vcc b8 e8 npn1
r5 vcc b8 1k
i8 e8 0 1m
q9 b7 e8 e9 npn1
q10 b8 e7 e10 npn1
c0 e9 e10 vco_cap
q11 e9 in 2 npn1
q12 e10 in 2 npn1
q15 2 c0 b0 npn1
q16 3 c0 b0 npn1
rx 2 3 8k
q13 vcc inb 3 npn1
q14 vcc inb 3 npn1
rt b0 vee 350
.ends
.model npn1 npn
+ eg=1.1 af=1 xcjc=0.95 subs=1
+ cjs=0 tf=5p
+ tr=500p cje=0.2p cjc=0.2p fc=0.8
+ vje=0.8 vjc=0.8 mje=0.33 mjc=0.33
+ rb=0 rbm=0 irb=10u
+ is=5e-15 ise=1.5e-14 isc=0
+ vaf=150 bf=100 ikf=20m
+ var=30 br=5 ikr=15m
+ rc=0 re=0
+ nf=1 ne=1.5 nc=1.2
+ tbf1=8e-03
.subckt pd1 in inb in2 in2b out outb vcc vee
rl vcc n1 1k
rlb vcc n1b 1k
q3 n1 in c1 npn1
q4 n1b inb c1 npn1
q5 n1 inb c2 npn1
q6 n1b in c2 npn1
q1 c1 in2 e npn1
q2 c2 in2b e npn1
ie e 0 0.5m
c1 n1 0 1p
c1b n1b 0 1p
q7 vcc n1 e7 npn1
q8 vcc n1b e8 npn1
r1 e7 out 625
r2 out vee 300
r1b e8 outb 625
r2b outb vee 300
.ends
.end |
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创芯大讲堂
创芯人才网
发表于 2012-5-5 09:47:03
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