蒙特卡洛仿真报错，ERROR (SFE-3)

niakoo0v0 · 发表于 2024-10-25 16:52:24

dongbu的svt5p0v没给蒙卡，去mismatch里找的section。一开始section只放了mis_svt050，报错说找不到sdpw_dnw的定义。然后加了dio，报错说有未知参数。再然后加了tt/ff/sf/fs/ss_svt050，就出现了下面的报错。报错内容只说定义重复了，但没说这个"existing subcircuit deifnition"在哪里，我该去哪里改啊，我甚至不知道新旧两个definition一不一样，先前的也不敢删。

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Spectre simulator stopped due to following reasons:
Error found by spectre during circuit read-in.
Error found by spectre during circuit read-in.
ERROR (SFE-3): "/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4p0_2/models/Spectre_lib/./1824HP18BA_Rev3p4p0_mis.scs" 14076: Cannot create subcircuit defi
nition `nch_svt_5p0v' because a subcircuit with the same name has already been defined in line `14076' of `/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4
p0_2/models/Spectre_lib/1824HP18BA_Rev3p4p0_mis.scs'. Either rename the existing subcircuit definition or remove the previous subcircuit definition, a
nd rerun the simulation.
ERROR (SFE-3): "/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4p0_2/models/Spectre_lib/./1824HP18BA_Rev3p4p0_mis.scs" 14110: Cannot create subcircuit defi
nition `pch_svt_5p0v' because a subcircuit with the same name has already been defined in line `14110' of `/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4
p0_2/models/Spectre_lib/1824HP18BA_Rev3p4p0_mis.scs'. Either rename the existing subcircuit definition or remove the previous subcircuit definition, a
nd rerun the simulation.
ERROR (SFE-3): "/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4p0_2/models/Spectre_lib/./1824HP18BA_Rev3p4p0_mis.scs" 14146: Cannot create subcircuit defi
nition `nch_svt_iso_5p0v' because a subcircuit with the same name has already been defined in line `14146' of `/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Re
v3p4p0_2/models/Spectre_lib/1824HP18BA_Rev3p4p0_mis.scs'. Either rename the existing subcircuit definition or remove the previous subcircuit definitio
n, and rerun the simulation.
ERROR (SFE-3): "/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4p0_2/models/Spectre_lib/./1824HP18BA_Rev3p4p0_mis.scs" 14192: Cannot create subcircuit defi
nition `pch_svt_iso_5p0v' because a subcircuit with the same name has already been defined in line `14192' of `/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Re
v3p4p0_2/models/Spectre_lib/1824HP18BA_Rev3p4p0_mis.scs'. Either rename the existing subcircuit definition or remove the previous subcircuit definitio
n, and rerun the simulation.
ERROR (SFE-3): "/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4p0_2/models/Spectre_lib/./1824HP18BA_Rev3p4p0_mis.scs" 14076: Cannot create subcircuit defi
nition `nch_svt_5p0v' because a subcircuit with the same name has already been defined in line `14076' of `/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4
p0_2/models/Spectre_lib/1824HP18BA_Rev3p4p0_mis.scs'. Either rename the existing subcircuit definition or remove the previous subcircuit definition, a
nd rerun the simulation.
ERROR (SFE-3): "/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4p0_2/models/Spectre_lib/./1824HP18BA_Rev3p4p0_mis.scs" 14110: Cannot create subcircuit defi
nition `pch_svt_5p0v' because a subcircuit with the same name has already been defined in line `14110' of `/PDKs/Dongnu18/DPDK_IC6p1_1824hp18ba_Rev3p4
p0_2/models/Spectre_lib/1824HP18BA_Rev3p4p0_mis.scs'. Either rename the existing subcircuit definition or remove the previous subcircuit definition, a
nd rerun the simulation.

Moonlight_66 · 发表于 2024-10-25 16:52:25

首先，你知道MC仿真需要调用哪些文件吗？
第二，MC仿真和tt/ff/sf/fs/ss这五种仿真是同一级别的，这几种不可能同时共用，就好比你想要一双筷子同时从5个碗里夹菜，是不可能实现的；

解决方式：
1、MC 仿真需要提前进行tt仿真，对比tt仿真,将tt.lib替换成MC.lib或者MC_mis.lib即可。那么问题来了，MC.lib或者MC_mis.lib在哪？
2、如果你不知道上面的lib文件在哪，那就去对应工艺的PDK下找到你的MODEL文件夹，里面有个“*_useage.scs”的文件，里面它会给你将tt/ff/sf/fs/ss/MC/MC_mis这7种.lib所调用的器件类型几乎概括了（为什么是几乎，应为有时候ESD\pad这些影响模块功能较小的器件类型和常用器件类型不在同一个“*.scs”文件里）
3、还有一种情况就是，你跑tt的时候，它把你所有用到的器件类型都散开一一列举出来了，那么你就可以回到第二步，一一对下，哪些器件需要调用“*_useage.scs”的*.lib,哪些需要单独列出
4、对于第三点最重要的一点就是，必须确认“*_useage.scs”的*.lib和你散开的器件类型不要重复，简单一点来讲就是散开的器件类型在“*_useage.scs”的*.lib出现就删掉该器件，比如svt050(tt/ff/sf/fs/ss)，在“*_useage.scs”的tt.lib里出现了“tt_svt050”，那你调用的器件模型里就不要有“tt_svt050”了。

Moonlight_66 · 发表于 2024-10-26 16:22:03

首先，你只有mis_svt050，显然是你工艺角调用错误，这个工艺应该有专门的MC_mis，你可以直接调用这个；
第二，tt\ff\ss\sf\fs这5个corner不属于MC范畴，而且你同时调用不同的lib，所以它会报你重复定义器件类型等错误，就好比你想要一双筷子同时进5个不同的碗夹菜是不可能实现的；
第三，你去dongbu的这个模型库下去找一个“**useage.scs”文件，它里面会简单的给你概括了tt\ff\ss\sf\fs\MC\MC_mis基本的7种仿真lib，里面几乎包含了它这个模型库对应工艺角的器件类型（有时候ESD可能不会包含）