IC5 Spectre error in RedHat 8.0 when simulating PSS

Hi all,

I encountered something strange and I would to like to ask if it is only my problems or not. I just installed ic5.0 in redhat 8. Everything works fine until I try simulating pss. I simulate the "lnasimple" as provided in "rfExamples" and there is error message pop up, "Internal error in spectre........", at the end of the simulation. I wonder have anyone countered this??


Command line:
spectre -env artist5.0.0 +log ../psf/spectre.out +inter=mpsc \
+mpssession=spectre0_2656_1 -format psfbin -raw ../psf \
input.scs
spectre pid = 2752

Loading /cadence/tools.lnx86/spectre/lib/cmi/2.0/libinfineon_sh.so ...
Loading /cadence/tools.lnx86/spectre/lib/cmi/2.0/libnortel_sh.so ...
Loading /cadence/tools.lnx86/spectre/lib/cmi/2.0/libphilips_sh.so ...
Loading /cadence/tools.lnx86/spectre/lib/cmi/2.0/libstmodels_sh.so ...
spectre (ver. 5.0.0.022703 -- 27 Feb 2003).

Simulating `input.scs' on localhost.localdomain at 10:59:44 AM, Fri Oct 31,
2003.

Warning from spectre during initial setup.
Q2: Parasitic resistor `re' has been deleted because its value of 50 mOhm (
R / (Area * MFactor) ) was smaller than `minr'.
Q3: Parasitic resistor `re' has been deleted because its value of 50 mOhm (
R / (Area * MFactor) ) was smaller than `minr'.


Circuit inventory:
nodes 11
equations 21
bjt 3
capacitor 5
port 2
quantity 6
resistor 8
vsource 1

Entering remote command mode using MPSC service (spectre, ipi, v0.0,
spectre0_2656_1, ).

****************************************************
Periodic Steady-State Analysis `pss': fund = 900 MHz
****************************************************
Important parameter values:
start = 0 s
outputstart = 0 s
stop = 1.11111 ns
period = 1.11111 ns
steadyratio = 1e-03
step = 1.11111 ps
maxstep = 11.1111 ps
ic = all
skipdc = no
reltol = 1e-03
abstol(I) = 1 pA
abstol(V) = 1 uV
temp = 27 C
tnom = 27 C
tempeffects = all
errpreset = moderate
method = gear2only
lteratio = 3.5
relref = alllocal
cmin = 0 F
gmin = 1 pS

pss: time = 28.43 ps (2.56 %), step = 6.687 ps (602 m%)
pss: time = 85.97 ps (7.74 %), step = 11.11 ps (1 %)
pss: time = 141.5 ps (12.7 %), step = 11.11 ps (1 %)


.......................................

pss: time = 1.03 ns (92.7 %), step = 5.556 ps (500 m%)
pss: time = 1.085 ns (97.7 %), step = 5.556 ps (500 m%)
Conv norm = 5.64, max dV(net28) = 36.4735 uV, took 10 ms.


Internal error found in spectre during periodic steady state analysis `pss'.
Please run `getSpectreFiles' or send the netlist, the spectre log file,
the behavioral model files, and any other information that can help
identify the problem to support@cadence.com.
Assertion failed in file `hopss.c' at line 1313.
Assertion failed.

spectre internal error

hi,

i never had such a error message. as i understand, you started s/pe/ctr/e from the command line. you also can try to execute your simulation in the C/I/W command line with OC/EAN commands. there is a good pdf in the doc- folder. by doing this you maybe get more information, what the problem is.
here a possible OC/EAN command procedure:

simulator(spectre)
design( path to netlist )
save(saveoption)
analysis('dc ?saveOppoint t)
createNetlist()
run()

greetings,
hqqh

entering remote command mode using mpsc service

Hi hqqh,

Thank you for the opinions. I know nothing about OC/EAN commands. I will tried following your suggestions and check if I can figure what is wrong.


Mesfet+

spectre minr

Hi All,

I found that in the PSS setup table, the signal type is fixed to "Large" and I cannot switch it at all. I wonder if it is only my problem? I have tried "unset LANG" but this doesn't help at all.


Mesfet+

remote command mode using mpsc service

i have the same question, anyone can solve it?

mpsc spectre

I encountered the same problems in the linux version IC50. But the problems do not exist in the solaris version.

errpreset

who can solve this problem?
i encountered the same pro on RH8 platform
does it works well on RH7.2,7.3?

entering remote command mode using mpsc service

Cadence supports only RH 7.2 and RH7.3
I have used IC5.033.+USR1 and obtained a result in 0.68sec.
There is no convergence problems.

internal error spectre

i encountered the same problem when i used IC50 on RH80.

then I get rid of RH 80 and installRH7.3.
it become better, at least that I can do basic PSS analysis. but I still can not do a PSS sweeping.

I guess it is the problem of OS. so may be the final solution is to use RH72.

However I found that IC5033 is able to run properly on RH73.

minr setup spectre

i think it's not a OS problem,but the settings of software/

is there othsers have it?