[Coin-lpsolver] Questions

Roor Abd roor_abd at yahoo.com
Sun Aug 13 03:23:12 EDT 2006


            Hi
  running more than one example using barrier algorithm ends with an 
  error in an assert in CoinPackedMatrix.cpp line 612 and so for some 
  examples when using presolve.
   
  for ClpInterior ,shouldn't be faster than Simplex?
  shouldn't ClpInterior::dualPrimal give a result without crossing over
  simplex .In more than one example (working in simplex)
  when I used the way used in testBarrier.cpp iterations didn't stop 
  but it seems that it stopped giving result or refining it giving 
  something like (#...)
   
   
  Does simplex use warmstart using the default setting or there is
  something to change .What is it? 
  What  are the settings for simplex to make it faster?
   
  thanks.
          


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