Problems visualizing results with Wavescan - MMSIM 6.2 - IC 5.1.14

First of all, the forum guidelines tell you not to post on the end of an old post - this one is 4 years old. But forgiving that for now, here's some answers:

1. The "chunk mode" is only supported for PSF, and even then only for transient (not for SP or AC type data). 
2. Changing the format via the usrCmdLineOption isn't really the right way to do it. For a start, ADE will output -format sst2 and then later you'll have -format psfbin too on the command line. Spectre will actually use whichever format is specified last on its command line - so psfbin will win. However, certain mapping functions in ADE will still think that sst2 was used, and hence it might have issues plotting currents in particular. As a result, the right thing to do would be to use:
   envSetVal("spectre.envOpts" "simOutputFormat" 'string "psfbin")
   before starting ADE.
3. It's somewhat irrelevant picking psfbin or sst2 anyway, since if sst2 is used as the format, it's only used for transient data. For sp and ac data etc it used psfbin anyway since sst2 doesn't support representing the kind of data needed.
4. The reason why there are multiple formats is historical. There are some very old formats supported by spectre (e.g. nutmeg), and then there is psf (in various flavours) and sst2. sst2 originated from the digital tools, and was made the default in ADE because it handled certain large transient databases more quickly than the older psfbin. In more recent IC version (IC615, IC616) the default is now "psfxl" which is a much newer format which scales much better when dealing with huge amounts of transient data (it's still using psfbin for some of the small signal analyses though even if you pick psfxl). In IC61X there's a field on a form in ADE now to choose the output format as well as a cdsenv setting.
5. I'm pretty amazed that an sp analysis could produce that amount of data. You'd have to have a very large number of ports and also a very large number of points in your frequency sweep, I'd have thought. Even with noise... so I'd check your setup.

Regards,

Andrew.

First of all, the forum guidelines tell you not to post on the end of an old post - this one is 4 years old. But forgiving that for now, here's some answers:

1. The "chunk mode" is only supported for PSF, and even then only for transient (not for SP or AC type data). 
2. Changing the format via the usrCmdLineOption isn't really the right way to do it. For a start, ADE will output -format sst2 and then later you'll have -format psfbin too on the command line. Spectre will actually use whichever format is specified last on its command line - so psfbin will win. However, certain mapping functions in ADE will still think that sst2 was used, and hence it might have issues plotting currents in particular. As a result, the right thing to do would be to use:
   envSetVal("spectre.envOpts" "simOutputFormat" 'string "psfbin")
   before starting ADE.
3. It's somewhat irrelevant picking psfbin or sst2 anyway, since if sst2 is used as the format, it's only used for transient data. For sp and ac data etc it used psfbin anyway since sst2 doesn't support representing the kind of data needed.
4. The reason why there are multiple formats is historical. There are some very old formats supported by spectre (e.g. nutmeg), and then there is psf (in various flavours) and sst2. sst2 originated from the digital tools, and was made the default in ADE because it handled certain large transient databases more quickly than the older psfbin. In more recent IC version (IC615, IC616) the default is now "psfxl" which is a much newer format which scales much better when dealing with huge amounts of transient data (it's still using psfbin for some of the small signal analyses though even if you pick psfxl). In IC61X there's a field on a form in ADE now to choose the output format as well as a cdsenv setting.
5. I'm pretty amazed that an sp analysis could produce that amount of data. You'd have to have a very large number of ports and also a very large number of points in your frequency sweep, I'd have thought. Even with noise... so I'd check your setup.

Regards,

Andrew.