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Multiprocessor ADE Option

piters

 Hi everyone,

 after installing a Cadence IC on a DELL workstation (2xQuad CPUs), I have noticed, while simulating a circuit with ADE L, that  not all of the CPUs are in use. Do I need additional software, or license feature to fix hardware resource usage? What might be a potential cause?

 Thanks in advance!

Parents
  • You're going to have to look at the output of 'lmstat -a -c 5280@' to see what count of Spectre and/or 'Virtuoso_Multi_mode_Simulation' licenses you have. One quick way to see if your licenses are current enough for multi-threaded sims: open up ADE L and see if the 'Setup - Turbo/Parasitic Reduction' menu option is accessible. If it is then you have the licenses; open it up and click the 'Turbo' switch. Check your 'spectre.out' log files for phrases like 'number of threads used' to see what's being used if you don't go with the default 'Auto' number of threads. Also note, you probably won't see one spectre process per thread. You should see >100% numbers show up in 'top'. Hope this helps! Andrew.
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  • You're going to have to look at the output of 'lmstat -a -c 5280@' to see what count of Spectre and/or 'Virtuoso_Multi_mode_Simulation' licenses you have. One quick way to see if your licenses are current enough for multi-threaded sims: open up ADE L and see if the 'Setup - Turbo/Parasitic Reduction' menu option is accessible. If it is then you have the licenses; open it up and click the 'Turbo' switch. Check your 'spectre.out' log files for phrases like 'number of threads used' to see what's being used if you don't go with the default 'Auto' number of threads. Also note, you probably won't see one spectre process per thread. You should see >100% numbers show up in 'top'. Hope this helps! Andrew.
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