ilter said:Dear all,
I have some questions. I run post-simulation using hspice.
But I have some errors. Like below.
**error** the memory request exceeds the current available space.
# memory which has been allocated = 700231 kbytes
# memory in next memory request which fails = 25418 kbytes
Please continue by
Step 1: Inspect input file for possible errors in .TRAN
statement or any sources with repeating functions.
Step 2: If other users or jobs are running, wait until
they free up more memory space.
Step 3: Have your system manager enlarge the swap space
on this cpu
***** job aborted
I check my file. I use .tran 2n 5n 1n
I don't know what's wrong.
If you know, please tell me detail.
My circuit is dac, it is large.
If I want to run post-simulation, which tool is suitable?
Please tell me.
Thanks very much.
Lantis said:Use perl to remove small parasitic cap (< 1e-15).
It will help reduce file size.
Lantis said:Hi ilter,
"Perl" can handel it very easily.
You can try it by yourself to write a small Perl program.
Good luck.
jcpu said:Dear Sir:
Often LPE tools has instructions for preventing
capacitance and resistance below certain threshold
to get generated.
lovseed said:jcpu said:Dear Sir:
Often LPE tools has instructions for preventing
capacitance and resistance below certain threshold
to get generated.
Dear lovseed,
I use calibre_pex but I don't see any choices for killing below threshold capacitor. If you know , please tell me where. Thanks very much.
I think this is a better and quick method to get a smaller netlist.
If you use script to delete small resistors and caps, you may have some nodes dangling or unconnected. You scripts may destroy the connection of nodes,devices,etc.
The RC extraction tool,however, can control how much parasitics to be extracted without losing important resistor or caps even though they are small.
Just go through the runset for RC extraction to raise the threshold value for resistor and caps.
Dear all,jcpu said:Dear Sir:
Often LPE tools has instructions for preventing
capacitance and resistance below certain threshold
to get generated.
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