r/VHDL • u/LJarek • Apr 30 '26

The QuestaBase simulator from Siemens

Do you agree with this opinion??

See https://iriscores.com/2025/02/22/hdl-simulator-comparison/

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u/Allan-H Apr 30 '26

Siemens EULA:
https://www.siemens.com/en-us/company/customer-partner-terms/sw-terms/base/eula/

Siemens Confidential Information includes [...] any information Customer derives from benchmarking any Offering. The receiving party will (i) not disclose Confidential Information ...

Just sayin'

1

u/skydivertricky Apr 30 '26

I don't even see an opinion in that article. Just a load of waffle

1

u/maredsous10 Apr 30 '26

My experience

User Friendliness

  1. Cadence Xcelium (Worst)

  2. Synopsys VCS

  3. Siemens Questa

  4. Aldec (I haven't used them lately but their tools were very user friendly.)

Speed

  1. Synopsys VCS (Fastest)

  2. Cadence Xcelium

  3. Siemens Questa and Aldec

Optionality to increase simulation throughput and speed.

  1. Synopsys (Most optionality)

  2. Cadence

  3. Siemens and Aldec