Lars Blomberg on Sat, 18 Jun 2016 09:59:23 +0200

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File conflict when using sigma in several instances of GP



Under  Windows10  I start  4 instances of GP 2.6.1 (32 bit) and run the same script (using sigma) in them.

They  runs ok for a while but then some instances fails with messages like


  *** sigma: error opening output file [rename]: `C:\Users\Lars\AppData\Local\Temp\MPfb/FREL'.

  *** sigma: error opening output file [rename]: `C:\Users\Lars\AppData\Local\Temp\MPfj/FREL'.


There are a multitude of folders named MPxx, where x is a small letter.

What are these files used for?

Can I direct the files each to its own folder so as to avoid the conflict?



Lars Blomberg